{"id":11,"date":"2007-05-19T00:38:27","date_gmt":"2007-05-18T16:38:27","guid":{"rendered":"http:\/\/127.0.0.1\/website_linux\/blog\/?p=11"},"modified":"2007-05-19T00:38:27","modified_gmt":"2007-05-18T16:38:27","slug":"java%e7%ac%94%e8%af%95%e9%a2%98%e7%9b%ae%e6%b1%87%e6%80%bb","status":"publish","type":"post","link":"https:\/\/opgogo.com\/blog2\/?p=11","title":{"rendered":"Java\u7b14\u8bd5\u9898\u76ee\u6c47\u603b"},"content":{"rendered":"

http:\/\/blog.csdn.net\/aaronbai\/archive\/2006\/12\/27\/1465071.aspx<\/p>\n

Java\u57fa\u7840\u65b9\u9762:<\/p>\n

0\u3001\u4f5c\u7528\u57dfpublic,private,protected,\u4ee5\u53ca\u4e0d\u5199\u65f6\u7684\u533a\u522b
\n\u7b54\uff1a\u533a\u522b\u5982\u4e0b\uff1a
\n\u4f5c\u7528\u57df \u5f53\u524d\u7c7b \u540c\u4e00package \u5b50\u5b59\u7c7b \u5176\u4ed6package
\npublic \u221a \u221a \u221a \u221a
\nprotected \u221a \u221a \u221a \u00d7
\nfriendly \u221a \u221a \u00d7 \u00d7
\nprivate \u221a \u00d7 \u00d7 \u00d7
\n\u4e0d\u5199\u65f6\u9ed8\u8ba4\u4e3afriendly<\/p>\n

1\u3002
\njava.lang.String\u7c7b\u662ffinal\u7c7b\u578b\u7684\uff0c\u56e0\u6b64\u4e0d\u53ef\u4ee5\u7ee7\u627f\u8fd9\u4e2a\u7c7b\u3001\u4e0d\u80fd\u4fee\u6539\u8fd9\u4e2a\u7c7b\u3002\u4e3a\u4e86\u63d0\u9ad8\u6548\u7387\u8282\u7701\u7a7a\u95f4\uff0c\u6211\u4eec\u5e94\u8be5\u7528StringBuffer\u7c7b<\/p>\n

3\u3001int \u548c Integer \u6709\u4ec0\u4e48\u533a\u522b
\nJava \u63d0\u4f9b\u4e24\u79cd\u4e0d\u540c\u7684\u7c7b\u578b\uff1a\u5f15\u7528\u7c7b\u578b\u548c\u539f\u59cb\u7c7b\u578b\uff08\u6216\u5185\u7f6e\u7c7b\u578b\uff09\u3002Int\u662fjava\u7684\u539f\u59cb\u6570\u636e\u7c7b\u578b\uff0cInteger\u662fjava\u4e3aint\u63d0\u4f9b\u7684\u5c01\u88c5\u7c7b\u3002Java\u4e3a\u6bcf\u4e2a\u539f\u59cb\u7c7b\u578b\u63d0\u4f9b\u4e86\u5c01\u88c5\u7c7b\u3002
\n\u539f\u59cb\u7c7b\u578b\u5c01\u88c5\u7c7b
\nbooleanBoolean
\ncharCharacter
\nbyteByte
\nshortShort
\nintInteger
\nlongLong
\nfloatFloat
\ndoubleDouble
\n\u5f15 \u7528\u7c7b\u578b\u548c\u539f\u59cb\u7c7b\u578b\u7684\u884c\u4e3a\u5b8c\u5168\u4e0d\u540c\uff0c\u5e76\u4e14\u5b83\u4eec\u5177\u6709\u4e0d\u540c\u7684\u8bed\u4e49\u3002\u5f15\u7528\u7c7b\u578b\u548c\u539f\u59cb\u7c7b\u578b\u5177\u6709\u4e0d\u540c\u7684\u7279\u5f81\u548c\u7528\u6cd5\uff0c\u5b83\u4eec\u5305\u62ec\uff1a\u5927\u5c0f\u548c\u901f\u5ea6\u95ee\u9898\uff0c\u8fd9\u79cd\u7c7b\u578b\u4ee5\u54ea\u79cd\u7c7b\u578b\u7684\u6570 \u636e\u7ed3\u6784\u5b58\u50a8\uff0c\u5f53\u5f15\u7528\u7c7b\u578b\u548c\u539f\u59cb\u7c7b\u578b\u7528\u4f5c\u67d0\u4e2a\u7c7b\u7684\u5b9e\u4f8b\u6570\u636e\u65f6\u6240\u6307\u5b9a\u7684\u7f3a\u7701\u503c\u3002\u5bf9\u8c61\u5f15\u7528\u5b9e\u4f8b\u53d8\u91cf\u7684\u7f3a\u7701\u503c\u4e3a null\uff0c\u800c\u539f\u59cb\u7c7b\u578b\u5b9e\u4f8b\u53d8\u91cf\u7684\u7f3a\u7701\u503c\u4e0e\u5b83\u4eec\u7684\u7c7b\u578b\u6709\u5173\u3002<\/p>\n

4\u3001String \u548cStringBuffer\u7684\u533a\u522b
\nJAVA \u5e73\u53f0\u63d0\u4f9b\u4e86\u4e24\u4e2a\u7c7b\uff1aString\u548cStringBuffer\uff0c\u5b83\u4eec\u53ef\u4ee5\u50a8\u5b58\u548c\u64cd\u4f5c\u5b57\u7b26\u4e32\uff0c\u5373\u5305\u542b\u591a\u4e2a\u5b57\u7b26\u7684\u5b57\u7b26\u6570\u636e\u3002\u8fd9\u4e2aString\u7c7b\u63d0\u4f9b\u4e86\u6570\u503c\u4e0d\u53ef\u6539 \u53d8\u7684\u5b57\u7b26\u4e32\u3002\u800c\u8fd9\u4e2aStringBuffer\u7c7b\u63d0\u4f9b\u7684\u5b57\u7b26\u4e32\u8fdb\u884c\u4fee\u6539\u3002\u5f53\u4f60\u77e5\u9053\u5b57\u7b26\u6570\u636e\u8981\u6539\u53d8\u7684\u65f6\u5019\u4f60\u5c31\u53ef\u4ee5\u4f7f\u7528StringBuffer\u3002\u5178\u578b\u5730\uff0c\u4f60\u53ef \u4ee5\u4f7f\u7528StringBuffers\u6765\u52a8\u6001\u6784\u9020\u5b57\u7b26\u6570\u636e\u3002<\/p>\n

5\u3001\u8fd0\u884c\u65f6\u5f02\u5e38\u4e0e\u4e00\u822c\u5f02\u5e38\u6709\u4f55\u5f02\u540c\uff1f
\n\u5f02\u5e38\u8868\u793a\u7a0b\u5e8f\u8fd0\u884c\u8fc7\u7a0b\u4e2d\u53ef\u80fd\u51fa\u73b0\u7684\u975e\u6b63\u5e38\u72b6\u6001\uff0c\u8fd0\u884c\u65f6\u5f02\u5e38\u8868\u793a\u865a\u62df\u673a\u7684\u901a\u5e38\u64cd\u4f5c\u4e2d\u53ef\u80fd\u9047\u5230\u7684\u5f02\u5e38\uff0c\u662f\u4e00\u79cd\u5e38\u89c1\u8fd0\u884c\u9519\u8bef\u3002java\u7f16\u8bd1\u5668\u8981\u6c42\u65b9\u6cd5\u5fc5\u987b\u58f0\u660e\u629b\u51fa\u53ef\u80fd\u53d1\u751f\u7684\u975e\u8fd0\u884c\u65f6\u5f02\u5e38\uff0c\u4f46\u662f\u5e76\u4e0d\u8981\u6c42\u5fc5\u987b\u58f0\u660e\u629b\u51fa\u672a\u88ab\u6355\u83b7\u7684\u8fd0\u884c\u65f6\u5f02\u5e38\u3002<\/p>\n

6\u3001\u8bf4\u51faServlet\u7684\u751f\u547d\u5468\u671f\uff0c\u5e76\u8bf4\u51faServlet\u548cCGI\u7684\u533a\u522b\u3002
\nServlet\u88ab\u670d\u52a1\u5668\u5b9e\u4f8b\u5316\u540e\uff0c\u5bb9\u5668\u8fd0\u884c\u5176init\u65b9\u6cd5\uff0c\u8bf7\u6c42\u5230\u8fbe\u65f6\u8fd0\u884c\u5176service\u65b9\u6cd5\uff0cservice\u65b9\u6cd5\u81ea\u52a8\u6d3e\u9063\u8fd0\u884c\u4e0e\u8bf7\u6c42\u5bf9\u5e94\u7684doXXX\u65b9\u6cd5\uff08doGet\uff0cdoPost\uff09\u7b49\uff0c\u5f53\u670d\u52a1\u5668\u51b3\u5b9a\u5c06\u5b9e\u4f8b\u9500\u6bc1\u7684\u65f6\u5019\u8c03\u7528\u5176destroy\u65b9\u6cd5\u3002
\n\u4e0ecgi\u7684\u533a\u522b\u5728\u4e8eservlet\u5904\u4e8e\u670d\u52a1\u5668\u8fdb\u7a0b\u4e2d\uff0c\u5b83\u901a\u8fc7\u591a\u7ebf\u7a0b\u65b9\u5f0f\u8fd0\u884c\u5176service\u65b9\u6cd5\uff0c\u4e00\u4e2a\u5b9e\u4f8b\u53ef\u4ee5\u670d\u52a1\u4e8e\u591a\u4e2a\u8bf7\u6c42\uff0c\u5e76\u4e14\u5176\u5b9e\u4f8b\u4e00\u822c\u4e0d\u4f1a\u9500\u6bc1\uff0c\u800cCGI\u5bf9\u6bcf\u4e2a\u8bf7\u6c42\u90fd\u4ea7\u751f\u65b0\u7684\u8fdb\u7a0b\uff0c\u670d\u52a1\u5b8c\u6210\u540e\u5c31\u9500\u6bc1\uff0c\u6240\u4ee5\u6548\u7387\u4e0a\u4f4e\u4e8eservlet\u3002<\/p>\n

7\u3001\u8bf4\u51faArrayList,Vector, LinkedList\u7684\u5b58\u50a8\u6027\u80fd\u548c\u7279\u6027
\nArrayList \u548cVector\u90fd\u662f\u4f7f\u7528\u6570\u7ec4\u65b9\u5f0f\u5b58\u50a8\u6570\u636e\uff0c\u6b64\u6570\u7ec4\u5143\u7d20\u6570\u5927\u4e8e\u5b9e\u9645\u5b58\u50a8\u7684\u6570\u636e\u4ee5\u4fbf\u589e\u52a0\u548c\u63d2\u5165\u5143\u7d20\uff0c\u5b83\u4eec\u90fd\u5141\u8bb8\u76f4\u63a5\u6309\u5e8f\u53f7\u7d22\u5f15\u5143\u7d20\uff0c\u4f46\u662f\u63d2\u5165\u5143\u7d20\u8981\u6d89\u53ca\u6570\u7ec4\u5143 \u7d20\u79fb\u52a8\u7b49\u5185\u5b58\u64cd\u4f5c\uff0c\u6240\u4ee5\u7d22\u5f15\u6570\u636e\u5feb\u800c\u63d2\u5165\u6570\u636e\u6162\uff0cVector\u7531\u4e8e\u4f7f\u7528\u4e86synchronized\u65b9\u6cd5\uff08\u7ebf\u7a0b\u5b89\u5168\uff09\uff0c\u901a\u5e38\u6027\u80fd\u4e0a\u8f83ArrayList\u5dee\uff0c \u800cLinkedList\u4f7f\u7528\u53cc\u5411\u94fe\u8868\u5b9e\u73b0\u5b58\u50a8\uff0c\u6309\u5e8f\u53f7\u7d22\u5f15\u6570\u636e\u9700\u8981\u8fdb\u884c\u524d\u5411\u6216\u540e\u5411\u904d\u5386\uff0c\u4f46\u662f\u63d2\u5165\u6570\u636e\u65f6\u53ea\u9700\u8981\u8bb0\u5f55\u672c\u9879\u7684\u524d\u540e\u9879\u5373\u53ef\uff0c\u6240\u4ee5\u63d2\u5165\u901f\u5ea6\u8f83\u5feb\u3002<\/p>\n

8\u3001EJB\u662f\u57fa\u4e8e\u54ea\u4e9b\u6280\u672f\u5b9e\u73b0\u7684\uff1f\u5e76\u8bf4\u51faSessionBean\u548cEntityBean\u7684\u533a\u522b\uff0cStatefulBean\u548cStatelessBean\u7684\u533a\u522b\u3002
\nEJB\u5305\u62ecSession Bean\u3001Entity Bean\u3001Message Driven Bean\uff0c\u57fa\u4e8eJNDI\u3001RMI\u3001JAT\u7b49\u6280\u672f\u5b9e\u73b0\u3002
\nSessionBean\u5728J2EE\u5e94\u7528\u7a0b\u5e8f\u4e2d\u88ab\u7528\u6765\u5b8c\u6210\u4e00\u4e9b\u670d\u52a1\u5668\u7aef\u7684\u4e1a\u52a1\u64cd\u4f5c\uff0c\u4f8b\u5982\u8bbf\u95ee\u6570\u636e\u5e93\u3001\u8c03\u7528\u5176\u4ed6EJB\u7ec4\u4ef6\u3002EntityBean\u88ab\u7528\u6765\u4ee3\u8868\u5e94\u7528\u7cfb\u7edf\u4e2d\u7528\u5230\u7684\u6570\u636e\u3002
\n\u5bf9\u4e8e\u5ba2\u6237\u673a\uff0cSessionBean\u662f\u4e00\u79cd\u975e\u6301\u4e45\u6027\u5bf9\u8c61\uff0c\u5b83\u5b9e\u73b0\u67d0\u4e9b\u5728\u670d\u52a1\u5668\u4e0a\u8fd0\u884c\u7684\u4e1a\u52a1\u903b\u8f91\u3002
\n\u5bf9\u4e8e\u5ba2\u6237\u673a\uff0cEntityBean\u662f\u4e00\u79cd\u6301\u4e45\u6027\u5bf9\u8c61\uff0c\u5b83\u4ee3\u8868\u4e00\u4e2a\u5b58\u50a8\u5728\u6301\u4e45\u6027\u5b58\u50a8\u5668\u4e2d\u7684\u5b9e\u4f53\u7684\u5bf9\u8c61\u89c6\u56fe\uff0c\u6216\u662f\u4e00\u4e2a\u7531\u73b0\u6709\u4f01\u4e1a\u5e94\u7528\u7a0b\u5e8f\u5b9e\u73b0\u7684\u5b9e\u4f53\u3002
\nSession Bean \u8fd8\u53ef\u4ee5\u518d\u7ec6\u5206\u4e3a Stateful Session Bean \u4e0e Stateless Session Bean \uff0c\u8fd9\u4e24\u79cd\u7684 Session Bean\u90fd\u53ef\u4ee5\u5c06\u7cfb\u7edf\u903b\u8f91\u653e\u5728 method\u4e4b\u4e2d\u6267\u884c\uff0c\u4e0d\u540c\u7684\u662f Stateful Session Bean \u53ef\u4ee5\u8bb0\u5f55\u547c\u53eb\u8005\u7684\u72b6\u6001\uff0c\u56e0\u6b64\u901a\u5e38\u6765\u8bf4\uff0c\u4e00\u4e2a\u4f7f\u7528\u8005\u4f1a\u6709\u4e00\u4e2a\u76f8\u5bf9\u5e94\u7684 Stateful Session Bean \u7684\u5b9e\u4f53\u3002Stateless Session Bean \u867d\u7136\u4e5f\u662f\u903b\u8f91\u7ec4\u4ef6\uff0c\u4f46\u662f\u4ed6\u5374\u4e0d\u8d1f\u8d23\u8bb0\u5f55\u4f7f\u7528\u8005\u72b6\u6001\uff0c\u4e5f\u5c31\u662f\u8bf4\u5f53\u4f7f\u7528\u8005\u547c\u53eb Stateless Session Bean \u7684\u65f6\u5019\uff0cEJB Container \u5e76\u4e0d\u4f1a\u627e\u5bfb\u7279\u5b9a\u7684 Stateless Session Bean \u7684\u5b9e\u4f53\u6765\u6267\u884c\u8fd9\u4e2a method\u3002\u6362\u8a00\u4e4b\uff0c\u5f88\u53ef\u80fd\u6570\u4e2a\u4f7f\u7528\u8005\u5728\u6267\u884c\u67d0\u4e2a Stateless Session Bean \u7684 methods \u65f6\uff0c\u4f1a\u662f\u540c\u4e00\u4e2a Bean \u7684 Instance \u5728\u6267\u884c\u3002\u4ece\u5185\u5b58\u65b9\u9762\u6765\u770b\uff0c Stateful Session Bean \u4e0e Stateless Session Bean \u6bd4\u8f83\uff0c Stateful Session Bean \u4f1a\u6d88\u8017 J2EE Server \u8f83\u591a\u7684\u5185\u5b58\uff0c\u7136\u800c Stateful Session Bean \u7684\u4f18\u52bf\u5374\u5728\u4e8e\u4ed6\u53ef\u4ee5\u7ef4\u6301\u4f7f\u7528\u8005\u7684\u72b6\u6001\u3002<\/p>\n

9\u3001Collection \u548c Collections\u7684\u533a\u522b\u3002
\n\u3000\u3000Collection\u662f\u96c6\u5408\u7c7b\u7684\u4e0a\u7ea7\u63a5\u53e3\uff0c\u7ee7\u627f\u4e0e\u4ed6\u7684\u63a5\u53e3\u4e3b\u8981\u6709Set \u548cList.
\nCollections\u662f\u9488\u5bf9\u96c6\u5408\u7c7b\u7684\u4e00\u4e2a\u5e2e\u52a9\u7c7b\uff0c\u4ed6\u63d0\u4f9b\u4e00\u7cfb\u5217\u9759\u6001\u65b9\u6cd5\u5b9e\u73b0\u5bf9\u5404\u79cd\u96c6\u5408\u7684\u641c\u7d22\u3001\u6392\u5e8f\u3001\u7ebf\u7a0b\u5b89\u5168\u5316\u7b49\u64cd\u4f5c\u3002<\/p>\n

10\u3001&\u548c&&\u7684\u533a\u522b\u3002
\n&\u662f\u4f4d\u8fd0\u7b97\u7b26\uff0c\u8868\u793a\u6309\u4f4d\u4e0e\u8fd0\u7b97\uff0c&&\u662f\u903b\u8f91\u8fd0\u7b97\u7b26\uff0c\u8868\u793a\u903b\u8f91\u4e0e\uff08and\uff09\u3002<\/p>\n

11\u3001HashMap\u548cHashtable\u7684\u533a\u522b\u3002
\nHashMap\u662fHashtable\u7684\u8f7b\u91cf\u7ea7\u5b9e\u73b0\uff08\u975e\u7ebf\u7a0b\u5b89\u5168\u7684\u5b9e\u73b0\uff09\uff0c\u4ed6\u4eec\u90fd\u5b8c\u6210\u4e86Map\u63a5\u53e3\uff0c\u4e3b\u8981\u533a\u522b\u5728\u4e8eHashMap\u5141\u8bb8\u7a7a\uff08null\uff09\u952e\u503c\uff08key\uff09,\u7531\u4e8e\u975e\u7ebf\u7a0b\u5b89\u5168\uff0c\u6548\u7387\u4e0a\u53ef\u80fd\u9ad8\u4e8eHashtable\u3002
\nHashMap\u5141\u8bb8\u5c06null\u4f5c\u4e3a\u4e00\u4e2aentry\u7684key\u6216\u8005value\uff0c\u800cHashtable\u4e0d\u5141\u8bb8\u3002
\nHashMap\u628aHashtable\u7684contains\u65b9\u6cd5\u53bb\u6389\u4e86\uff0c\u6539\u6210containsvalue\u548ccontainsKey\u3002\u56e0\u4e3acontains\u65b9\u6cd5\u5bb9\u6613\u8ba9\u4eba\u5f15\u8d77\u8bef\u89e3\u3002
\nHashtable\u7ee7\u627f\u81eaDictionary\u7c7b\uff0c\u800cHashMap\u662fJava1.2\u5f15\u8fdb\u7684Map interface\u7684\u4e00\u4e2a\u5b9e\u73b0\u3002
\n\u6700\u5927\u7684\u4e0d\u540c\u662f\uff0cHashtable\u7684\u65b9\u6cd5\u662fSynchronize\u7684\uff0c\u800cHashMap\u4e0d\u662f\uff0c\u5728\u591a\u4e2a\u7ebf\u7a0b\u8bbf\u95eeHashtable\u65f6\uff0c\u4e0d\u9700\u8981\u81ea\u5df1\u4e3a\u5b83\u7684\u65b9\u6cd5\u5b9e\u73b0\u540c\u6b65\uff0c\u800cHashMap \u5c31\u5fc5\u987b\u4e3a\u4e4b\u63d0\u4f9b\u5916\u540c\u6b65\u3002
\nHashtable\u548cHashMap\u91c7\u7528\u7684hash\/rehash\u7b97\u6cd5\u90fd\u5927\u6982\u4e00\u6837\uff0c\u6240\u4ee5\u6027\u80fd\u4e0d\u4f1a\u6709\u5f88\u5927\u7684\u5dee\u5f02\u3002<\/p>\n

12\u3001final, finally, finalize\u7684\u533a\u522b\u3002
\n\u3000\u3000final \u7528\u4e8e\u58f0\u660e\u5c5e\u6027\uff0c\u65b9\u6cd5\u548c\u7c7b\uff0c\u5206\u522b\u8868\u793a\u5c5e\u6027\u4e0d\u53ef\u53d8\uff0c\u65b9\u6cd5\u4e0d\u53ef\u8986\u76d6\uff0c\u7c7b\u4e0d\u53ef\u7ee7\u627f\u3002
\nfinally\u662f\u5f02\u5e38\u5904\u7406\u8bed\u53e5\u7ed3\u6784\u7684\u4e00\u90e8\u5206\uff0c\u8868\u793a\u603b\u662f\u6267\u884c\u3002
\nfinalize\u662fObject\u7c7b\u7684\u4e00\u4e2a\u65b9\u6cd5\uff0c\u5728\u5783\u573e\u6536\u96c6\u5668\u6267\u884c\u7684\u65f6\u5019\u4f1a\u8c03\u7528\u88ab\u56de\u6536\u5bf9\u8c61\u7684\u6b64\u65b9\u6cd5\uff0c\u53ef\u4ee5\u8986\u76d6\u6b64\u65b9\u6cd5\u63d0\u4f9b\u5783\u573e\u6536\u96c6\u65f6\u7684\u5176\u4ed6\u8d44\u6e90\u56de\u6536\uff0c\u4f8b\u5982\u5173\u95ed\u6587\u4ef6\u7b49\u3002<\/p>\n

13\u3001sleep() \u548c wait() \u6709\u4ec0\u4e48\u533a\u522b?
\nsleep\u662f\u7ebf\u7a0b\u7c7b\uff08Thread\uff09\u7684\u65b9\u6cd5\uff0c\u5bfc\u81f4\u6b64\u7ebf\u7a0b\u6682\u505c\u6267\u884c\u6307\u5b9a\u65f6\u95f4\uff0c\u7ed9\u6267\u884c\u673a\u4f1a\u7ed9\u5176\u4ed6\u7ebf\u7a0b\uff0c\u4f46\u662f\u76d1\u63a7\u72b6\u6001\u4f9d\u7136\u4fdd\u6301\uff0c\u5230\u65f6\u540e\u4f1a\u81ea\u52a8\u6062\u590d\u3002\u8c03\u7528sleep\u4e0d\u4f1a\u91ca\u653e\u5bf9\u8c61\u9501\u3002
\nwait\u662fObject\u7c7b\u7684\u65b9\u6cd5\uff0c\u5bf9\u6b64\u5bf9\u8c61\u8c03\u7528wait\u65b9\u6cd5\u5bfc\u81f4\u672c\u7ebf\u7a0b\u653e\u5f03\u5bf9\u8c61\u9501\uff0c\u8fdb\u5165\u7b49\u5f85\u6b64\u5bf9\u8c61\u7684\u7b49\u5f85\u9501\u5b9a\u6c60\uff0c\u53ea\u6709\u9488\u5bf9\u6b64\u5bf9\u8c61\u53d1\u51fanotify\u65b9\u6cd5\uff08\u6216notifyAll\uff09\u540e\u672c\u7ebf\u7a0b\u624d\u8fdb\u5165\u5bf9\u8c61\u9501\u5b9a\u6c60\u51c6\u5907\u83b7\u5f97\u5bf9\u8c61\u9501\u8fdb\u5165\u8fd0\u884c\u72b6\u6001\u3002<\/p>\n

14\u3001Overload\u548cOverride\u7684\u533a\u522b\u3002Overloaded\u7684\u65b9\u6cd5\u662f\u5426\u53ef\u4ee5\u6539\u53d8\u8fd4\u56de\u503c\u7684\u7c7b\u578b?
\n\u65b9 \u6cd5\u7684\u91cd\u5199Overriding\u548c\u91cd\u8f7dOverloading\u662fJava\u591a\u6001\u6027\u7684\u4e0d\u540c\u8868\u73b0\u3002\u91cd\u5199Overriding\u662f\u7236\u7c7b\u4e0e\u5b50\u7c7b\u4e4b\u95f4\u591a\u6001\u6027\u7684\u4e00\u79cd\u8868\u73b0\uff0c\u91cd \u8f7dOverloading\u662f\u4e00\u4e2a\u7c7b\u4e2d\u591a\u6001\u6027\u7684\u4e00\u79cd\u8868\u73b0\u3002\u5982\u679c\u5728\u5b50\u7c7b\u4e2d\u5b9a\u4e49\u67d0\u65b9\u6cd5\u4e0e\u5176\u7236\u7c7b\u6709\u76f8\u540c\u7684\u540d\u79f0\u548c\u53c2\u6570\uff0c\u6211\u4eec\u8bf4\u8be5\u65b9\u6cd5\u88ab\u91cd\u5199 (Overriding)\u3002\u5b50\u7c7b\u7684\u5bf9\u8c61\u4f7f\u7528\u8fd9\u4e2a\u65b9\u6cd5\u65f6\uff0c\u5c06\u8c03\u7528\u5b50\u7c7b\u4e2d\u7684\u5b9a\u4e49\uff0c\u5bf9\u5b83\u800c\u8a00\uff0c\u7236\u7c7b\u4e2d\u7684\u5b9a\u4e49\u5982\u540c\u88ab”\u5c4f\u853d”\u4e86\u3002\u5982\u679c\u5728\u4e00\u4e2a\u7c7b\u4e2d\u5b9a\u4e49\u4e86\u591a\u4e2a\u540c\u540d\u7684\u65b9 \u6cd5\uff0c\u5b83\u4eec\u6216\u6709\u4e0d\u540c\u7684\u53c2\u6570\u4e2a\u6570\u6216\u6709\u4e0d\u540c\u7684\u53c2\u6570\u7c7b\u578b\uff0c\u5219\u79f0\u4e3a\u65b9\u6cd5\u7684\u91cd\u8f7d(Overloading)\u3002Overloaded\u7684\u65b9\u6cd5\u662f\u53ef\u4ee5\u6539\u53d8\u8fd4\u56de\u503c\u7684\u7c7b\u578b\u3002<\/p>\n

15\u3001error\u548cexception\u6709\u4ec0\u4e48\u533a\u522b?
\nerror \u8868\u793a\u6062\u590d\u4e0d\u662f\u4e0d\u53ef\u80fd\u4f46\u5f88\u56f0\u96be\u7684\u60c5\u51b5\u4e0b\u7684\u4e00\u79cd\u4e25\u91cd\u95ee\u9898\u3002\u6bd4\u5982\u8bf4\u5185\u5b58\u6ea2\u51fa\u3002\u4e0d\u53ef\u80fd\u6307\u671b\u7a0b\u5e8f\u80fd\u5904\u7406\u8fd9\u6837\u7684\u60c5\u51b5\u3002
\nexception \u8868\u793a\u4e00\u79cd\u8bbe\u8ba1\u6216\u5b9e\u73b0\u95ee\u9898\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u5b83\u8868\u793a\u5982\u679c\u7a0b\u5e8f\u8fd0\u884c\u6b63\u5e38\uff0c\u4ece\u4e0d\u4f1a\u53d1\u751f\u7684\u60c5\u51b5\u3002<\/p>\n

16\u3001\u540c\u6b65\u548c\u5f02\u6b65\u6709\u4f55\u5f02\u540c\uff0c\u5728\u4ec0\u4e48\u60c5\u51b5\u4e0b\u5206\u522b\u4f7f\u7528\u4ed6\u4eec\uff1f\u4e3e\u4f8b\u8bf4\u660e\u3002
\n\u5982\u679c\u6570\u636e\u5c06\u5728\u7ebf\u7a0b\u95f4\u5171\u4eab\u3002\u4f8b\u5982\u6b63\u5728\u5199\u7684\u6570\u636e\u4ee5\u540e\u53ef\u80fd\u88ab\u53e6\u4e00\u4e2a\u7ebf\u7a0b\u8bfb\u5230\uff0c\u6216\u8005\u6b63\u5728\u8bfb\u7684\u6570\u636e\u53ef\u80fd\u5df2\u7ecf\u88ab\u53e6\u4e00\u4e2a\u7ebf\u7a0b\u5199\u8fc7\u4e86\uff0c\u90a3\u4e48\u8fd9\u4e9b\u6570\u636e\u5c31\u662f\u5171\u4eab\u6570\u636e\uff0c\u5fc5\u987b\u8fdb\u884c\u540c\u6b65\u5b58\u53d6\u3002
\n\u5f53\u5e94\u7528\u7a0b\u5e8f\u5728\u5bf9\u8c61\u4e0a\u8c03\u7528\u4e86\u4e00\u4e2a\u9700\u8981\u82b1\u8d39\u5f88\u957f\u65f6\u95f4\u6765\u6267\u884c\u7684\u65b9\u6cd5\uff0c\u5e76\u4e14\u4e0d\u5e0c\u671b\u8ba9\u7a0b\u5e8f\u7b49\u5f85\u65b9\u6cd5\u7684\u8fd4\u56de\u65f6\uff0c\u5c31\u5e94\u8be5\u4f7f\u7528\u5f02\u6b65\u7f16\u7a0b\uff0c\u5728\u5f88\u591a\u60c5\u51b5\u4e0b\u91c7\u7528\u5f02\u6b65\u9014\u5f84\u5f80\u5f80\u66f4\u6709\u6548\u7387\u3002<\/p>\n

17\u3001abstract class\u548cinterface\u6709\u4ec0\u4e48\u533a\u522b?
\n\u58f0 \u660e\u65b9\u6cd5\u7684\u5b58\u5728\u800c\u4e0d\u53bb\u5b9e\u73b0\u5b83\u7684\u7c7b\u88ab\u53eb\u505a\u62bd\u8c61\u7c7b\uff08abstract class\uff09\uff0c\u5b83\u7528\u4e8e\u8981\u521b\u5efa\u4e00\u4e2a\u4f53\u73b0\u67d0\u4e9b\u57fa\u672c\u884c\u4e3a\u7684\u7c7b\uff0c\u5e76\u4e3a\u8be5\u7c7b\u58f0\u660e\u65b9\u6cd5\uff0c\u4f46\u4e0d\u80fd\u5728\u8be5\u7c7b\u4e2d\u5b9e\u73b0\u8be5\u7c7b\u7684\u60c5\u51b5\u3002\u4e0d\u80fd\u521b\u5efaabstract \u7c7b\u7684\u5b9e\u4f8b\u3002\u7136\u800c\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u53d8\u91cf\uff0c\u5176\u7c7b\u578b\u662f\u4e00\u4e2a\u62bd\u8c61\u7c7b\uff0c\u5e76\u8ba9\u5b83\u6307\u5411\u5177\u4f53\u5b50\u7c7b\u7684\u4e00\u4e2a\u5b9e\u4f8b\u3002\u4e0d\u80fd\u6709\u62bd\u8c61\u6784\u9020\u51fd\u6570\u6216\u62bd\u8c61\u9759\u6001\u65b9\u6cd5\u3002Abstract \u7c7b\u7684\u5b50\u7c7b\u4e3a\u5b83\u4eec\u7236\u7c7b\u4e2d\u7684\u6240\u6709\u62bd\u8c61\u65b9\u6cd5\u63d0\u4f9b\u5b9e\u73b0\uff0c\u5426\u5219\u5b83\u4eec\u4e5f\u662f\u62bd\u8c61\u7c7b\u4e3a\u3002\u53d6\u800c\u4ee3\u4e4b\uff0c\u5728\u5b50\u7c7b\u4e2d\u5b9e\u73b0\u8be5\u65b9\u6cd5\u3002\u77e5\u9053\u5176\u884c\u4e3a\u7684\u5176\u5b83\u7c7b\u53ef\u4ee5\u5728\u7c7b\u4e2d\u5b9e\u73b0\u8fd9\u4e9b\u65b9\u6cd5\u3002
\n\u63a5 \u53e3\uff08interface\uff09\u662f\u62bd\u8c61\u7c7b\u7684\u53d8\u4f53\u3002\u5728\u63a5\u53e3\u4e2d\uff0c\u6240\u6709\u65b9\u6cd5\u90fd\u662f\u62bd\u8c61\u7684\u3002\u591a\u7ee7\u627f\u6027\u53ef\u901a\u8fc7\u5b9e\u73b0\u8fd9\u6837\u7684\u63a5\u53e3\u800c\u83b7\u5f97\u3002\u63a5\u53e3\u4e2d\u7684\u6240\u6709\u65b9\u6cd5\u90fd\u662f\u62bd\u8c61\u7684\uff0c\u6ca1\u6709\u4e00\u4e2a\u6709 \u7a0b\u5e8f\u4f53\u3002\u63a5\u53e3\u53ea\u53ef\u4ee5\u5b9a\u4e49static final\u6210\u5458\u53d8\u91cf\u3002\u63a5\u53e3\u7684\u5b9e\u73b0\u4e0e\u5b50\u7c7b\u76f8\u4f3c\uff0c\u9664\u4e86\u8be5\u5b9e\u73b0\u7c7b\u4e0d\u80fd\u4ece\u63a5\u53e3\u5b9a\u4e49\u4e2d\u7ee7\u627f\u884c\u4e3a\u3002\u5f53\u7c7b\u5b9e\u73b0\u7279\u6b8a\u63a5\u53e3\u65f6\uff0c\u5b83\u5b9a\u4e49\uff08\u5373\u5c06\u7a0b\u5e8f\u4f53\u7ed9\u4e88\uff09\u6240\u6709\u8fd9\u79cd\u63a5\u53e3\u7684\u65b9\u6cd5\u3002 \u7136\u540e\uff0c\u5b83\u53ef\u4ee5\u5728\u5b9e\u73b0\u4e86\u8be5\u63a5\u53e3\u7684\u7c7b\u7684\u4efb\u4f55\u5bf9\u8c61\u4e0a\u8c03\u7528\u63a5\u53e3\u7684\u65b9\u6cd5\u3002\u7531\u4e8e\u6709\u62bd\u8c61\u7c7b\uff0c\u5b83\u5141\u8bb8\u4f7f\u7528\u63a5\u53e3\u540d\u4f5c\u4e3a\u5f15\u7528\u53d8\u91cf\u7684\u7c7b\u578b\u3002\u901a\u5e38\u7684\u52a8\u6001\u8054\u7f16\u5c06\u751f\u6548\u3002\u5f15\u7528\u53ef\u4ee5\u8f6c\u6362\u5230 \u63a5\u53e3\u7c7b\u578b\u6216\u4ece\u63a5\u53e3\u7c7b\u578b\u8f6c\u6362\uff0cinstanceof \u8fd0\u7b97\u7b26\u53ef\u4ee5\u7528\u6765\u51b3\u5b9a\u67d0\u5bf9\u8c61\u7684\u7c7b\u662f\u5426\u5b9e\u73b0\u4e86\u63a5\u53e3\u3002<\/p>\n

18\u3001heap\u548cstack\u6709\u4ec0\u4e48\u533a\u522b\u3002
\n\u6808\u662f\u4e00\u79cd\u7ebf\u5f62\u96c6\u5408\uff0c\u5176\u6dfb\u52a0\u548c\u5220\u9664\u5143\u7d20\u7684\u64cd\u4f5c\u5e94\u5728\u540c\u4e00\u6bb5\u5b8c\u6210\u3002\u6808\u6309\u7167\u540e\u8fdb\u5148\u51fa\u7684\u65b9\u5f0f\u8fdb\u884c\u5904\u7406\u3002
\n\u5806\u662f\u6808\u7684\u4e00\u4e2a\u7ec4\u6210\u5143\u7d20<\/p>\n

19\u3001forward \u548credirect\u7684\u533a\u522b
\nforward\u662f\u670d\u52a1\u5668\u8bf7\u6c42\u8d44\u6e90\uff0c\u670d\u52a1\u5668\u76f4\u63a5\u8bbf\u95ee\u76ee\u6807\u5730\u5740\u7684URL\uff0c\u628a\u90a3\u4e2aURL\u7684\u54cd\u5e94\u5185\u5bb9\u8bfb\u53d6\u8fc7\u6765\uff0c\u7136\u540e\u628a\u8fd9\u4e9b\u5185\u5bb9\u518d\u53d1\u7ed9\u6d4f\u89c8\u5668\uff0c\u6d4f\u89c8\u5668\u6839\u672c\u4e0d\u77e5\u9053\u670d\u52a1\u5668\u53d1\u9001\u7684\u5185\u5bb9\u662f\u4ece\u54ea\u513f\u6765\u7684\uff0c\u6240\u4ee5\u5b83\u7684\u5730\u5740\u680f\u4e2d\u8fd8\u662f\u539f\u6765\u7684\u5730\u5740\u3002
\nredirect\u5c31\u662f\u670d\u52a1\u7aef\u6839\u636e\u903b\u8f91,\u53d1\u9001\u4e00\u4e2a\u72b6\u6001\u7801,\u544a\u8bc9\u6d4f\u89c8\u5668\u91cd\u65b0\u53bb\u8bf7\u6c42\u90a3\u4e2a\u5730\u5740\uff0c\u4e00\u822c\u6765\u8bf4\u6d4f\u89c8\u5668\u4f1a\u7528\u521a\u624d\u8bf7\u6c42\u7684\u6240\u6709\u53c2\u6570\u91cd\u65b0\u8bf7\u6c42\uff0c\u6240\u4ee5session,request\u53c2\u6570\u90fd\u53ef\u4ee5\u83b7\u53d6\u3002<\/p>\n

20\u3001EJB\u4e0eJAVA BEAN\u7684\u533a\u522b\uff1f
\nJava Bean \u662f\u53ef\u590d\u7528\u7684\u7ec4\u4ef6\uff0c\u5bf9Java Bean\u5e76\u6ca1\u6709\u4e25\u683c\u7684\u89c4\u8303\uff0c\u7406\u8bba\u4e0a\u8bb2\uff0c\u4efb\u4f55\u4e00\u4e2aJava\u7c7b\u90fd\u53ef\u4ee5\u662f\u4e00\u4e2aBean\u3002\u4f46\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u7531\u4e8eJava Bean\u662f\u88ab\u5bb9\u5668\u6240\u521b\u5efa\uff08\u5982Tomcat\uff09\u7684\uff0c\u6240\u4ee5Java Bean\u5e94\u5177\u6709\u4e00\u4e2a\u65e0\u53c2\u7684\u6784\u9020\u5668\uff0c\u53e6\u5916\uff0c\u901a\u5e38Java Bean\u8fd8\u8981\u5b9e\u73b0Serializable\u63a5\u53e3\u7528\u4e8e\u5b9e\u73b0Bean\u7684\u6301\u4e45\u6027\u3002Java Bean\u5b9e\u9645\u4e0a\u76f8\u5f53\u4e8e\u5fae\u8f6fCOM\u6a21\u578b\u4e2d\u7684\u672c\u5730\u8fdb\u7a0b\u5185COM\u7ec4\u4ef6\uff0c\u5b83\u662f\u4e0d\u80fd\u88ab\u8de8\u8fdb\u7a0b\u8bbf\u95ee\u7684\u3002Enterprise Java Bean \u76f8\u5f53\u4e8eDCOM\uff0c\u5373\u5206\u5e03\u5f0f\u7ec4\u4ef6\u3002\u5b83\u662f\u57fa\u4e8eJava\u7684\u8fdc\u7a0b\u65b9\u6cd5\u8c03\u7528\uff08RMI\uff09\u6280\u672f\u7684\uff0c\u6240\u4ee5EJB\u53ef\u4ee5\u88ab\u8fdc\u7a0b\u8bbf\u95ee\uff08\u8de8\u8fdb\u7a0b\u3001\u8de8\u8ba1\u7b97\u673a\uff09\u3002\u4f46EJB\u5fc5\u987b\u88ab\u5e03\u7f72\u5728 \u8bf8\u5982Webspere\u3001WebLogic\u8fd9\u6837\u7684\u5bb9\u5668\u4e2d\uff0cEJB\u5ba2\u6237\u4ece\u4e0d\u76f4\u63a5\u8bbf\u95ee\u771f\u6b63\u7684EJB\u7ec4\u4ef6\uff0c\u800c\u662f\u901a\u8fc7\u5176\u5bb9\u5668\u8bbf\u95ee\u3002EJB\u5bb9\u5668\u662fEJB\u7ec4\u4ef6\u7684\u4ee3\u7406\uff0c EJB\u7ec4\u4ef6\u7531\u5bb9\u5668\u6240\u521b\u5efa\u548c\u7ba1\u7406\u3002\u5ba2\u6237\u901a\u8fc7\u5bb9\u5668\u6765\u8bbf\u95ee\u771f\u6b63\u7684EJB\u7ec4\u4ef6\u3002<\/p>\n

21\u3001Static Nested Class \u548c Inner Class\u7684\u4e0d\u540c\u3002
\nStatic Nested Class\u662f\u88ab\u58f0\u660e\u4e3a\u9759\u6001\uff08static\uff09\u7684\u5185\u90e8\u7c7b\uff0c\u5b83\u53ef\u4ee5\u4e0d\u4f9d\u8d56\u4e8e\u5916\u90e8\u7c7b\u5b9e\u4f8b\u88ab\u5b9e\u4f8b\u5316\u3002\u800c\u901a\u5e38\u7684\u5185\u90e8\u7c7b\u9700\u8981\u5728\u5916\u90e8\u7c7b\u5b9e\u4f8b\u5316\u540e\u624d\u80fd\u5b9e\u4f8b\u5316\u3002
\n22\u3001JSP\u4e2d\u52a8\u6001INCLUDE\u4e0e\u9759\u6001INCLUDE\u7684\u533a\u522b\uff1f
\n\u52a8\u6001INCLUDE\u7528jsp:include\u52a8\u4f5c\u5b9e\u73b0 \u5b83\u603b\u662f\u4f1a\u68c0\u67e5\u6240\u542b\u6587\u4ef6\u4e2d\u7684\u53d8\u5316\uff0c\u9002\u5408\u7528\u4e8e\u5305\u542b\u52a8\u6001\u9875\u9762\uff0c\u5e76\u4e14\u53ef\u4ee5\u5e26\u53c2\u6570\u3002
\n\u9759\u6001INCLUDE\u7528include\u4f2a\u7801\u5b9e\u73b0,\u5b9a\u4e0d\u4f1a\u68c0\u67e5\u6240\u542b\u6587\u4ef6\u7684\u53d8\u5316\uff0c\u9002\u7528\u4e8e\u5305\u542b\u9759\u6001\u9875\u9762<\/p>\n

23\u3001\u4ec0\u4e48\u65f6\u5019\u7528assert\u3002
\nassertion (\u65ad\u8a00)\u5728\u8f6f\u4ef6\u5f00\u53d1\u4e2d\u662f\u4e00\u79cd\u5e38\u7528\u7684\u8c03\u8bd5\u65b9\u5f0f\uff0c\u5f88\u591a\u5f00\u53d1\u8bed\u8a00\u4e2d\u90fd\u652f\u6301\u8fd9\u79cd\u673a\u5236\u3002\u5728\u5b9e\u73b0\u4e2d\uff0cassertion\u5c31\u662f\u5728\u7a0b\u5e8f\u4e2d\u7684\u4e00\u6761\u8bed\u53e5\uff0c\u5b83\u5bf9\u4e00\u4e2a boolean\u8868\u8fbe\u5f0f\u8fdb\u884c\u68c0\u67e5\uff0c\u4e00\u4e2a\u6b63\u786e\u7a0b\u5e8f\u5fc5\u987b\u4fdd\u8bc1\u8fd9\u4e2aboolean\u8868\u8fbe\u5f0f\u7684\u503c\u4e3atrue\uff1b\u5982\u679c\u8be5\u503c\u4e3afalse\uff0c\u8bf4\u660e\u7a0b\u5e8f\u5df2\u7ecf\u5904\u4e8e\u4e0d\u6b63\u786e\u7684\u72b6\u6001\u4e0b\uff0c \u7cfb\u7edf\u5c06\u7ed9\u51fa\u8b66\u544a\u6216\u9000\u51fa\u3002\u4e00\u822c\u6765\u8bf4\uff0cassertion\u7528\u4e8e\u4fdd\u8bc1\u7a0b\u5e8f\u6700\u57fa\u672c\u3001\u5173\u952e\u7684\u6b63\u786e\u6027\u3002assertion\u68c0\u67e5\u901a\u5e38\u5728\u5f00\u53d1\u548c\u6d4b\u8bd5\u65f6\u5f00\u542f\u3002\u4e3a\u4e86\u63d0\u9ad8\u6027\u80fd\uff0c \u5728\u8f6f\u4ef6\u53d1\u5e03\u540e\uff0cassertion\u68c0\u67e5\u901a\u5e38\u662f\u5173\u95ed\u7684\u3002<\/p>\n

24\u3001GC\u662f\u4ec0\u4e48? \u4e3a\u4ec0\u4e48\u8981\u6709GC?
\n\u3000 \u3000GC\u662f\u5783\u573e\u6536\u96c6\u7684\u610f\u601d\uff08Gabage Collection\uff09,\u5185\u5b58\u5904\u7406\u662f\u7f16\u7a0b\u4eba\u5458\u5bb9\u6613\u51fa\u73b0\u95ee\u9898\u7684\u5730\u65b9\uff0c\u5fd8\u8bb0\u6216\u8005\u9519\u8bef\u7684\u5185\u5b58\u56de\u6536\u4f1a\u5bfc\u81f4\u7a0b\u5e8f\u6216\u7cfb\u7edf\u7684\u4e0d\u7a33\u5b9a\u751a\u81f3\u5d29\u6e83\uff0cJava\u63d0\u4f9b\u7684GC\u529f\u80fd\u53ef\u4ee5 \u81ea\u52a8\u76d1\u6d4b\u5bf9\u8c61\u662f\u5426\u8d85\u8fc7\u4f5c\u7528\u57df\u4ece\u800c\u8fbe\u5230\u81ea\u52a8\u56de\u6536\u5185\u5b58\u7684\u76ee\u7684\uff0cJava\u8bed\u8a00\u6ca1\u6709\u63d0\u4f9b\u91ca\u653e\u5df2\u5206\u914d\u5185\u5b58\u7684\u663e\u793a\u64cd\u4f5c\u65b9\u6cd5\u3002<\/p>\n

25\u3001short s1 = 1; s1 = s1 + 1;\u6709\u4ec0\u4e48\u9519? short s1 = 1; s1 += 1;\u6709\u4ec0\u4e48\u9519?
\nshort s1 = 1; s1 = s1 + 1; \uff08s1+1\u8fd0\u7b97\u7ed3\u679c\u662fint\u578b\uff0c\u9700\u8981\u5f3a\u5236\u8f6c\u6362\u7c7b\u578b\uff09
\nshort s1 = 1; s1 += 1;\uff08\u53ef\u4ee5\u6b63\u786e\u7f16\u8bd1\uff09<\/p>\n

26\u3001Math.round(11.5)\u7b49\u65bc\u591a\u5c11? Math.round(-11.5)\u7b49\u65bc\u591a\u5c11?
\nMath.round(11.5)==12
\nMath.round(-11.5)==-11
\nround\u65b9\u6cd5\u8fd4\u56de\u4e0e\u53c2\u6570\u6700\u63a5\u8fd1\u7684\u957f\u6574\u6570\uff0c\u53c2\u6570\u52a01\/2\u540e\u6c42\u5176floor.<\/p>\n

27\u3001String s = new String(“xyz”);\u521b\u5efa\u4e86\u51e0\u4e2aString Object?
\n\u4e24\u4e2a<\/p>\n

28\u3001\u8bbe\u8ba14\u4e2a\u7ebf\u7a0b\uff0c\u5176\u4e2d\u4e24\u4e2a\u7ebf\u7a0b\u6bcf\u6b21\u5bf9j\u589e\u52a01\uff0c\u53e6\u5916\u4e24\u4e2a\u7ebf\u7a0b\u5bf9j\u6bcf\u6b21\u51cf\u5c111\u3002\u5199\u51fa\u7a0b\u5e8f\u3002
\n\u4ee5\u4e0b\u7a0b\u5e8f\u4f7f\u7528\u5185\u90e8\u7c7b\u5b9e\u73b0\u7ebf\u7a0b\uff0c\u5bf9j\u589e\u51cf\u7684\u65f6\u5019\u6ca1\u6709\u8003\u8651\u987a\u5e8f\u95ee\u9898\u3002
\npublic class ThreadTest1{
\nprivate int j;
\npublic static void main(String args[]){
\nThreadTest1 tt=new ThreadTest1();
\nInc inc=tt.new Inc();
\nDec dec=tt.new Dec();
\nfor(int i=0;i<2;i++){\nThread t=new Thread(inc);\nt.start();\nt=new Thread(dec);\nt.start();\n}\n}\nprivate synchronized void inc(){\nj++;\nSystem.out.println(Thread.currentThread().getName()+\"-inc:\"+j);\n}\nprivate synchronized void dec(){\nj--;\nSystem.out.println(Thread.currentThread().getName()+\"-dec:\"+j);\n}\nclass Inc implements Runnable{\npublic void run(){\nfor(int i=0;i<100;i++){\ninc();\n}\n}\n}\nclass Dec implements Runnable{\npublic void run(){\nfor(int i=0;i<100;i++){\ndec();\n}\n}\n}\n}\n\n29\u3001Java\u6709\u6ca1\u6709goto?\njava\u4e2d\u7684\u4fdd\u7559\u5b57\uff0c\u73b0\u5728\u6ca1\u6709\u5728java\u4e2d\u4f7f\u7528\u3002\n\n30\u3001\u542f\u52a8\u4e00\u4e2a\u7ebf\u7a0b\u662f\u7528run()\u8fd8\u662fstart()?\n\u542f\u52a8\u4e00\u4e2a\u7ebf\u7a0b\u662f\u8c03\u7528start()\u65b9\u6cd5\uff0c\u4f7f\u7ebf\u7a0b\u6240\u4ee3\u8868\u7684\u865a\u62df\u5904\u7406\u673a\u5904\u4e8e\u53ef\u8fd0\u884c\u72b6\u6001\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u53ef\u4ee5\u7531JVM\u8c03\u5ea6\u5e76\u6267\u884c\u3002\u8fd9\u5e76\u4e0d\u610f\u5473\u7740\u7ebf\u7a0b\u5c31\u4f1a\u7acb\u5373\u8fd0\u884c\u3002run()\u65b9\u6cd5\u53ef\u4ee5\u4ea7\u751f\u5fc5\u987b\u9000\u51fa\u7684\u6807\u5fd7\u6765\u505c\u6b62\u4e00\u4e2a\u7ebf\u7a0b\u3002\n\n31\u3001EJB\u5305\u62ec\uff08SessionBean,EntityBean\uff09\u8bf4\u51fa\u4ed6\u4eec\u7684\u751f\u547d\u5468\u671f\uff0c\u53ca\u5982\u4f55\u7ba1\u7406\u4e8b\u52a1\u7684\uff1f\nSessionBean\uff1a Stateless Session Bean \u7684\u751f\u547d\u5468\u671f\u662f\u7531\u5bb9\u5668\u51b3\u5b9a\u7684\uff0c\u5f53\u5ba2\u6237\u673a\u53d1\u51fa\u8bf7\u6c42\u8981\u5efa\u7acb\u4e00\u4e2aBean\u7684\u5b9e\u4f8b\u65f6\uff0cEJB\u5bb9\u5668\u4e0d\u4e00\u5b9a\u8981\u521b\u5efa\u4e00\u4e2a\u65b0\u7684Bean\u7684\u5b9e\u4f8b\u4f9b\u5ba2\u6237\u673a\u8c03\u7528\uff0c\u800c\u662f\u968f\u4fbf\u627e\u4e00\u4e2a\u73b0 \u6709\u7684\u5b9e\u4f8b\u63d0\u4f9b\u7ed9\u5ba2\u6237\u673a\u3002\u5f53\u5ba2\u6237\u673a\u7b2c\u4e00\u6b21\u8c03\u7528\u4e00\u4e2aStateful Session Bean \u65f6\uff0c\u5bb9\u5668\u5fc5\u987b\u7acb\u5373\u5728\u670d\u52a1\u5668\u4e2d\u521b\u5efa\u4e00\u4e2a\u65b0\u7684Bean\u5b9e\u4f8b\uff0c\u5e76\u5173\u8054\u5230\u5ba2\u6237\u673a\u4e0a\uff0c\u4ee5\u540e\u6b64\u5ba2\u6237\u673a\u8c03\u7528Stateful Session Bean \u7684\u65b9\u6cd5\u65f6\u5bb9\u5668\u4f1a\u628a\u8c03\u7528\u5206\u6d3e\u5230\u4e0e\u6b64\u5ba2\u6237\u673a\u76f8\u5173\u8054\u7684Bean\u5b9e\u4f8b\u3002\nEntityBean\uff1aEntity Beans\u80fd\u5b58\u6d3b\u76f8\u5bf9\u8f83\u957f\u7684\u65f6\u95f4\uff0c\u5e76\u4e14\u72b6\u6001\u662f\u6301\u7eed\u7684\u3002\u53ea\u8981\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u5b58\u5728\uff0cEntity beans\u5c31\u4e00\u76f4\u5b58\u6d3b\u3002\u800c\u4e0d\u662f\u6309\u7167\u5e94\u7528\u7a0b\u5e8f\u6216\u8005\u670d\u52a1\u8fdb\u7a0b\u6765\u8bf4\u7684\u3002\u5373\u4f7fEJB\u5bb9\u5668\u5d29\u6e83\u4e86\uff0cEntity beans\u4e5f\u662f\u5b58\u6d3b\u7684\u3002Entity Beans\u751f\u547d\u5468\u671f\u80fd\u591f\u88ab\u5bb9\u5668\u6216\u8005 Beans\u81ea\u5df1\u7ba1\u7406\u3002\nEJB\u901a\u8fc7\u4ee5\u4e0b\u6280\u672f\u7ba1\u7406\u5b9e\u52a1\uff1a\u5bf9\u8c61\u7ba1\u7406\u7ec4\u7ec7\uff08OMG\uff09\u7684\u5bf9\u8c61\u5b9e\u52a1\u670d\u52a1\uff08OTS\uff09\uff0cSun Microsystems\u7684Transaction Service\uff08JTS\uff09\u3001Java Transaction API\uff08JTA\uff09\uff0c\u5f00\u53d1\u7ec4\uff08X\/Open\uff09\u7684XA\u63a5\u53e3\u3002\n\n32\u3001\u5e94\u7528\u670d\u52a1\u5668\u6709\u90a3\u4e9b\uff1f\nBEA WebLogic Server\uff0cIBM WebSphere Application Server\uff0cOracle9i Application Server\uff0cjBoss\uff0cTomcat\n\n33\u3001\u7ed9\u6211\u4e00\u4e2a\u4f60\u6700\u5e38\u89c1\u5230\u7684runtime exception\u3002\nArithmeticException, ArrayStoreException, BufferOverflowException, BufferUnderflowException, CannotRedoException, CannotUndoException, ClassCastException, CMMException, ConcurrentModificationException, DOMException, EmptyStackException, IllegalArgumentException, IllegalMonitorStateException, IllegalPathStateException, IllegalStateException, ImagingOpException, IndexOutOfBoundsException, MissingResourceException, NegativeArraySizeException, NoSuchElementException, NullPointerException, ProfileDataException, ProviderException, RasterFormatException, SecurityException, SystemException, UndeclaredThrowableException, UnmodifiableSetException, UnsupportedOperationException\n\n34\u3001\u63a5\u53e3\u662f\u5426\u53ef\u7ee7\u627f\u63a5\u53e3? \u62bd\u8c61\u7c7b\u662f\u5426\u53ef\u5b9e\u73b0(implements)\u63a5\u53e3? \u62bd\u8c61\u7c7b\u662f\u5426\u53ef\u7ee7\u627f\u5b9e\u4f53\u7c7b(concrete class)?\n\u63a5\u53e3\u53ef\u4ee5\u7ee7\u627f\u63a5\u53e3\u3002\u62bd\u8c61\u7c7b\u53ef\u4ee5\u5b9e\u73b0(implements)\u63a5\u53e3\uff0c\u62bd\u8c61\u7c7b\u662f\u5426\u53ef\u7ee7\u627f\u5b9e\u4f53\u7c7b\uff0c\u4f46\u524d\u63d0\u662f\u5b9e\u4f53\u7c7b\u5fc5\u987b\u6709\u660e\u786e\u7684\u6784\u9020\u51fd\u6570\u3002\n\n35\u3001List, Set, Map\u662f\u5426\u7ee7\u627f\u81eaCollection\u63a5\u53e3?\nList\uff0cSet\u662f\uff0cMap\u4e0d\u662f\n\n36\u3001\u8bf4\u51fa\u6570\u636e\u8fde\u63a5\u6c60\u7684\u5de5\u4f5c\u673a\u5236\u662f\u4ec0\u4e48?\nJ2EE \u670d\u52a1\u5668\u542f\u52a8\u65f6\u4f1a\u5efa\u7acb\u4e00\u5b9a\u6570\u91cf\u7684\u6c60\u8fde\u63a5\uff0c\u5e76\u4e00\u76f4\u7ef4\u6301\u4e0d\u5c11\u4e8e\u6b64\u6570\u76ee\u7684\u6c60\u8fde\u63a5\u3002\u5ba2\u6237\u7aef\u7a0b\u5e8f\u9700\u8981\u8fde\u63a5\u65f6\uff0c\u6c60\u9a71\u52a8\u7a0b\u5e8f\u4f1a\u8fd4\u56de\u4e00\u4e2a\u672a\u4f7f\u7528\u7684\u6c60\u8fde\u63a5\u5e76\u5c06\u5176\u8868\u8bb0\u4e3a\u5fd9\u3002\u5982\u679c \u5f53\u524d\u6ca1\u6709\u7a7a\u95f2\u8fde\u63a5\uff0c\u6c60\u9a71\u52a8\u7a0b\u5e8f\u5c31\u65b0\u5efa\u4e00\u5b9a\u6570\u91cf\u7684\u8fde\u63a5\uff0c\u65b0\u5efa\u8fde\u63a5\u7684\u6570\u91cf\u6709\u914d\u7f6e\u53c2\u6570\u51b3\u5b9a\u3002\u5f53\u4f7f\u7528\u7684\u6c60\u8fde\u63a5\u8c03\u7528\u5b8c\u6210\u540e\uff0c\u6c60\u9a71\u52a8\u7a0b\u5e8f\u5c06\u6b64\u8fde\u63a5\u8868\u8bb0\u4e3a\u7a7a\u95f2\uff0c\u5176\u4ed6\u8c03\u7528 \u5c31\u53ef\u4ee5\u4f7f\u7528\u8fd9\u4e2a\u8fde\u63a5\u3002\n\n37\u3001abstract\u7684method\u662f\u5426\u53ef\u540c\u65f6\u662fstatic,\u662f\u5426\u53ef\u540c\u65f6\u662fnative\uff0c\u662f\u5426\u53ef\u540c\u65f6\u662fsynchronized?\n\u90fd\u4e0d\u80fd\n\n38\u3001\u6570\u7ec4\u6709\u6ca1\u6709length()\u8fd9\u4e2a\u65b9\u6cd5? String\u6709\u6ca1\u6709length()\u8fd9\u4e2a\u65b9\u6cd5\uff1f\n\u6570\u7ec4\u6ca1\u6709length()\u8fd9\u4e2a\u65b9\u6cd5\uff0c\u6709length\u7684\u5c5e\u6027\u3002String\u6709\u6709length()\u8fd9\u4e2a\u65b9\u6cd5\u3002\n\n39\u3001Set\u91cc\u7684\u5143\u7d20\u662f\u4e0d\u80fd\u91cd\u590d\u7684\uff0c\u90a3\u4e48\u7528\u4ec0\u4e48\u65b9\u6cd5\u6765\u533a\u5206\u91cd\u590d\u4e0e\u5426\u5462? \u662f\u7528==\u8fd8\u662fequals()? \u5b83\u4eec\u6709\u4f55\u533a\u522b?\nSet\u91cc\u7684\u5143\u7d20\u662f\u4e0d\u80fd\u91cd\u590d\u7684\uff0c\u90a3\u4e48\u7528iterator()\u65b9\u6cd5\u6765\u533a\u5206\u91cd\u590d\u4e0e\u5426\u3002equals()\u662f\u5224\u8bfb\u4e24\u4e2aSet\u662f\u5426\u76f8\u7b49\u3002\nequals()\u548c==\u65b9\u6cd5\u51b3\u5b9a\u5f15\u7528\u503c\u662f\u5426\u6307\u5411\u540c\u4e00\u5bf9\u8c61equals()\u5728\u7c7b\u4e2d\u88ab\u8986\u76d6\uff0c\u4e3a\u7684\u662f\u5f53\u4e24\u4e2a\u5206\u79bb\u7684\u5bf9\u8c61\u7684\u5185\u5bb9\u548c\u7c7b\u578b\u76f8\u914d\u7684\u8bdd\uff0c\u8fd4\u56de\u771f\u503c\u3002\n\n40\u3001\u6784\u9020\u5668Constructor\u662f\u5426\u53ef\u88aboverride?\n\u6784\u9020\u5668Constructor\u4e0d\u80fd\u88ab\u7ee7\u627f\uff0c\u56e0\u6b64\u4e0d\u80fd\u91cd\u5199Overriding\uff0c\u4f46\u53ef\u4ee5\u88ab\u91cd\u8f7dOverloading\u3002\n\n41\u3001\u662f\u5426\u53ef\u4ee5\u7ee7\u627fString\u7c7b?\nString\u7c7b\u662ffinal\u7c7b\u6545\u4e0d\u53ef\u4ee5\u7ee7\u627f\u3002\n\n42\u3001swtich\u662f\u5426\u80fd\u4f5c\u7528\u5728byte\u4e0a\uff0c\u662f\u5426\u80fd\u4f5c\u7528\u5728long\u4e0a\uff0c\u662f\u5426\u80fd\u4f5c\u7528\u5728String\u4e0a?\nswitch\uff08expr1\uff09\u4e2d\uff0cexpr1\u662f\u4e00\u4e2a\u6574\u6570\u8868\u8fbe\u5f0f\u3002\u56e0\u6b64\u4f20\u9012\u7ed9 switch \u548c case \u8bed\u53e5\u7684\u53c2\u6570\u5e94\u8be5\u662f int\u3001 short\u3001 char \u6216\u8005 byte\u3002long,string \u90fd\u4e0d\u80fd\u4f5c\u7528\u4e8eswtich\u3002\n\n43\u3001try {}\u91cc\u6709\u4e00\u4e2areturn\u8bed\u53e5\uff0c\u90a3\u4e48\u7d27\u8ddf\u5728\u8fd9\u4e2atry\u540e\u7684finally {}\u91cc\u7684code\u4f1a\u4e0d\u4f1a\u88ab\u6267\u884c\uff0c\u4ec0\u4e48\u65f6\u5019\u88ab\u6267\u884c\uff0c\u5728return\u524d\u8fd8\u662f\u540e?\n\u4f1a\u6267\u884c\uff0c\u5728return\u524d\u6267\u884c\u3002\n\n44\u3001\u7f16\u7a0b\u9898: \u7528\u6700\u6709\u6548\u7387\u7684\u65b9\u6cd5\u7b97\u51fa2\u4e58\u4ee58\u7b49\u65bc\u51e0?\n2 << 3\n\n45\u3001\u4e24\u4e2a\u5bf9\u8c61\u503c\u76f8\u540c(x.equals(y) == true)\uff0c\u4f46\u5374\u53ef\u6709\u4e0d\u540c\u7684hash code\uff0c\u8fd9\u53e5\u8bdd\u5bf9\u4e0d\u5bf9?\n\u4e0d\u5bf9\uff0c\u6709\u76f8\u540c\u7684hash code\u3002\n\n46\u3001\u5f53\u4e00\u4e2a\u5bf9\u8c61\u88ab\u5f53\u4f5c\u53c2\u6570\u4f20\u9012\u5230\u4e00\u4e2a\u65b9\u6cd5\u540e\uff0c\u6b64\u65b9\u6cd5\u53ef\u6539\u53d8\u8fd9\u4e2a\u5bf9\u8c61\u7684\u5c5e\u6027\uff0c\u5e76\u53ef\u8fd4\u56de\u53d8\u5316\u540e\u7684\u7ed3\u679c\uff0c\u90a3\u4e48\u8fd9\u91cc\u5230\u5e95\u662f\u503c\u4f20\u9012\u8fd8\u662f\u5f15\u7528\u4f20\u9012?\n\u662f\u503c\u4f20\u9012\u3002Java \u7f16\u7a0b\u8bed\u8a00\u53ea\u6709\u503c\u4f20\u9012\u53c2\u6570\u3002\u5f53\u4e00\u4e2a\u5bf9\u8c61\u5b9e\u4f8b\u4f5c\u4e3a\u4e00\u4e2a\u53c2\u6570\u88ab\u4f20\u9012\u5230\u65b9\u6cd5\u4e2d\u65f6\uff0c\u53c2\u6570\u7684\u503c\u5c31\u662f\u5bf9\u8be5\u5bf9\u8c61\u7684\u5f15\u7528\u3002\u5bf9\u8c61\u7684\u5185\u5bb9\u53ef\u4ee5\u5728\u88ab\u8c03\u7528\u7684\u65b9\u6cd5\u4e2d\u6539\u53d8\uff0c\u4f46\u5bf9\u8c61\u7684\u5f15\u7528\u662f\u6c38\u8fdc\u4e0d\u4f1a\u6539\u53d8\u7684\u3002\n\n47\u3001\u5f53\u4e00\u4e2a\u7ebf\u7a0b\u8fdb\u5165\u4e00\u4e2a\u5bf9\u8c61\u7684\u4e00\u4e2asynchronized\u65b9\u6cd5\u540e\uff0c\u5176\u5b83\u7ebf\u7a0b\u662f\u5426\u53ef\u8fdb\u5165\u6b64\u5bf9\u8c61\u7684\u5176\u5b83\u65b9\u6cd5?\n\u4e0d\u80fd\uff0c\u4e00\u4e2a\u5bf9\u8c61\u7684\u4e00\u4e2asynchronized\u65b9\u6cd5\u53ea\u80fd\u7531\u4e00\u4e2a\u7ebf\u7a0b\u8bbf\u95ee\u3002\n\n48\u3001\u7f16\u7a0b\u9898: \u5199\u4e00\u4e2aSingleton\u51fa\u6765\u3002\nSingleton\u6a21\u5f0f\u4e3b\u8981\u4f5c\u7528\u662f\u4fdd\u8bc1\u5728Java\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u4e00\u4e2a\u7c7bClass\u53ea\u6709\u4e00\u4e2a\u5b9e\u4f8b\u5b58\u5728\u3002\n\u4e00\u822cSingleton\u6a21\u5f0f\u901a\u5e38\u6709\u51e0\u79cd\u79cd\u5f62\u5f0f:\n\u7b2c\u4e00\u79cd\u5f62\u5f0f: \u5b9a\u4e49\u4e00\u4e2a\u7c7b\uff0c\u5b83\u7684\u6784\u9020\u51fd\u6570\u4e3aprivate\u7684\uff0c\u5b83\u6709\u4e00\u4e2astatic\u7684private\u7684\u8be5\u7c7b\u53d8\u91cf\uff0c\u5728\u7c7b\u521d\u59cb\u5316\u65f6\u5b9e\u4f8b\u8bdd\uff0c\u901a\u8fc7\u4e00\u4e2apublic\u7684getInstance\u65b9\u6cd5\u83b7\u53d6\u5bf9\u5b83\u7684\u5f15\u7528,\u7ee7\u800c\u8c03\u7528\u5176\u4e2d\u7684\u65b9\u6cd5\u3002\npublic class Singleton {\nprivate Singleton(){}\n\u3000\u3000 \/\/\u5728\u81ea\u5df1\u5185\u90e8\u5b9a\u4e49\u81ea\u5df1\u4e00\u4e2a\u5b9e\u4f8b\uff0c\u662f\u4e0d\u662f\u5f88\u5947\u602a\uff1f\n\u3000\u3000 \/\/\u6ce8\u610f\u8fd9\u662fprivate \u53ea\u4f9b\u5185\u90e8\u8c03\u7528\n\u3000\u3000 private static Singleton instance = new Singleton();\n\u3000\u3000 \/\/\u8fd9\u91cc\u63d0\u4f9b\u4e86\u4e00\u4e2a\u4f9b\u5916\u90e8\u8bbf\u95ee\u672cclass\u7684\u9759\u6001\u65b9\u6cd5\uff0c\u53ef\u4ee5\u76f4\u63a5\u8bbf\u95ee\u3000\u3000\n\u3000\u3000 public static Singleton getInstance() {\n\u3000\u3000\u3000\u3000 return instance; \u3000\u3000\n\u3000\u3000 }\n}\n\u7b2c\u4e8c\u79cd\u5f62\u5f0f:\npublic class Singleton {\n\u3000\u3000private static Singleton instance = null;\n\u3000\u3000public static synchronized Singleton getInstance() {\n\u3000\u3000\/\/\u8fd9\u4e2a\u65b9\u6cd5\u6bd4\u4e0a\u9762\u6709\u6240\u6539\u8fdb\uff0c\u4e0d\u7528\u6bcf\u6b21\u90fd\u8fdb\u884c\u751f\u6210\u5bf9\u8c61\uff0c\u53ea\u662f\u7b2c\u4e00\u6b21\u3000\u3000\u3000 \u3000\n\u3000\u3000\/\/\u4f7f\u7528\u65f6\u751f\u6210\u5b9e\u4f8b\uff0c\u63d0\u9ad8\u4e86\u6548\u7387\uff01\n\u3000\u3000if (instance==null)\n\u3000\u3000\u3000\u3000instance\uff1dnew Singleton();\nreturn instance; \u3000\u3000}\n}\n\u5176\u4ed6\u5f62\u5f0f:\n\u5b9a\u4e49\u4e00\u4e2a\u7c7b\uff0c\u5b83\u7684\u6784\u9020\u51fd\u6570\u4e3aprivate\u7684\uff0c\u6240\u6709\u65b9\u6cd5\u4e3astatic\u7684\u3002\n\u4e00\u822c\u8ba4\u4e3a\u7b2c\u4e00\u79cd\u5f62\u5f0f\u8981\u66f4\u52a0\u5b89\u5168\u4e9b\n\n49\u3001Java\u7684\u63a5\u53e3\u548cC++\u7684\u865a\u7c7b\u7684\u76f8\u540c\u548c\u4e0d\u540c\u5904\u3002\n\u7531 \u4e8eJava\u4e0d\u652f\u6301\u591a\u7ee7\u627f\uff0c\u800c\u6709\u53ef\u80fd\u67d0\u4e2a\u7c7b\u6216\u5bf9\u8c61\u8981\u4f7f\u7528\u5206\u522b\u5728\u51e0\u4e2a\u7c7b\u6216\u5bf9\u8c61\u91cc\u9762\u7684\u65b9\u6cd5\u6216\u5c5e\u6027\uff0c\u73b0\u6709\u7684\u5355\u7ee7\u627f\u673a\u5236\u5c31\u4e0d\u80fd\u6ee1\u8db3\u8981\u6c42\u3002\u4e0e\u7ee7\u627f\u76f8\u6bd4\uff0c\u63a5\u53e3\u6709\u66f4\u9ad8\u7684\u7075 \u6d3b\u6027\uff0c\u56e0\u4e3a\u63a5\u53e3\u4e2d\u6ca1\u6709\u4efb\u4f55\u5b9e\u73b0\u4ee3\u7801\u3002\u5f53\u4e00\u4e2a\u7c7b\u5b9e\u73b0\u4e86\u63a5\u53e3\u4ee5\u540e\uff0c\u8be5\u7c7b\u8981\u5b9e\u73b0\u63a5\u53e3\u91cc\u9762\u6240\u6709\u7684\u65b9\u6cd5\u548c\u5c5e\u6027\uff0c\u5e76\u4e14\u63a5\u53e3\u91cc\u9762\u7684\u5c5e\u6027\u5728\u9ed8\u8ba4\u72b6\u6001\u4e0b\u9762\u90fd\u662fpublic static,\u6240\u6709\u65b9\u6cd5\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u662fpublic.\u4e00\u4e2a\u7c7b\u53ef\u4ee5\u5b9e\u73b0\u591a\u4e2a\u63a5\u53e3\u3002\n\n50\u3001Java\u4e2d\u7684\u5f02\u5e38\u5904\u7406\u673a\u5236\u7684\u7b80\u5355\u539f\u7406\u548c\u5e94\u7528\u3002\n\u5f53JAVA \u7a0b\u5e8f\u8fdd\u53cd\u4e86JAVA\u7684\u8bed\u4e49\u89c4\u5219\u65f6\uff0cJAVA\u865a\u62df\u673a\u5c31\u4f1a\u5c06\u53d1\u751f\u7684\u9519\u8bef\u8868\u793a\u4e3a\u4e00\u4e2a\u5f02\u5e38\u3002\u8fdd\u53cd\u8bed\u4e49\u89c4\u5219\u5305\u62ec2\u79cd\u60c5\u51b5\u3002\u4e00\u79cd\u662fJAVA\u7c7b\u5e93\u5185\u7f6e\u7684\u8bed\u4e49\u68c0\u67e5\u3002\u4f8b\u5982\u6570 \u7ec4\u4e0b\u6807\u8d8a\u754c,\u4f1a\u5f15\u53d1IndexOutOfBoundsException;\u8bbf\u95eenull\u7684\u5bf9\u8c61\u65f6\u4f1a\u5f15\u53d1NullPointerException\u3002\u53e6\u4e00\u79cd \u60c5\u51b5\u5c31\u662fJAVA\u5141\u8bb8\u7a0b\u5e8f\u5458\u6269\u5c55\u8fd9\u79cd\u8bed\u4e49\u68c0\u67e5\uff0c\u7a0b\u5e8f\u5458\u53ef\u4ee5\u521b\u5efa\u81ea\u5df1\u7684\u5f02\u5e38\uff0c\u5e76\u81ea\u7531\u9009\u62e9\u5728\u4f55\u65f6\u7528throw\u5173\u952e\u5b57\u5f15\u53d1\u5f02\u5e38\u3002\u6240\u6709\u7684\u5f02\u5e38\u90fd\u662f java.lang.Thowable\u7684\u5b50\u7c7b\u3002\n\n51\u3001\u5783\u573e\u56de\u6536\u7684\u4f18\u70b9\u548c\u539f\u7406\u3002\u5e76\u8003\u86512\u79cd\u56de\u6536\u673a\u5236\u3002\nJava \u8bed\u8a00\u4e2d\u4e00\u4e2a\u663e\u8457\u7684\u7279\u70b9\u5c31\u662f\u5f15\u5165\u4e86\u5783\u573e\u56de\u6536\u673a\u5236\uff0c\u4f7fc++\u7a0b\u5e8f\u5458\u6700\u5934\u75bc\u7684\u5185\u5b58\u7ba1\u7406\u7684\u95ee\u9898\u8fce\u5203\u800c\u89e3\uff0c\u5b83\u4f7f\u5f97Java\u7a0b\u5e8f\u5458\u5728\u7f16\u5199\u7a0b\u5e8f\u7684\u65f6\u5019\u4e0d\u518d\u9700\u8981\u8003\u8651\u5185\u5b58\u7ba1 \u7406\u3002\u7531\u4e8e\u6709\u4e2a\u5783\u573e\u56de\u6536\u673a\u5236\uff0cJava\u4e2d\u7684\u5bf9\u8c61\u4e0d\u518d\u6709\"\u4f5c\u7528\u57df\"\u7684\u6982\u5ff5\uff0c\u53ea\u6709\u5bf9\u8c61\u7684\u5f15\u7528\u624d\u6709\"\u4f5c\u7528\u57df\"\u3002\u5783\u573e\u56de\u6536\u53ef\u4ee5\u6709\u6548\u7684\u9632\u6b62\u5185\u5b58\u6cc4\u9732\uff0c\u6709\u6548\u7684\u4f7f\u7528\u53ef\u4ee5\u4f7f \u7528\u7684\u5185\u5b58\u3002\u5783\u573e\u56de\u6536\u5668\u901a\u5e38\u662f\u4f5c\u4e3a\u4e00\u4e2a\u5355\u72ec\u7684\u4f4e\u7ea7\u522b\u7684\u7ebf\u7a0b\u8fd0\u884c\uff0c\u4e0d\u53ef\u9884\u77e5\u7684\u60c5\u51b5\u4e0b\u5bf9\u5185\u5b58\u5806\u4e2d\u5df2\u7ecf\u6b7b\u4ea1\u7684\u6216\u8005\u957f\u65f6\u95f4\u6ca1\u6709\u4f7f\u7528\u7684\u5bf9\u8c61\u8fdb\u884c\u6e05\u695a\u548c\u56de\u6536\uff0c\u7a0b\u5e8f\u5458\u4e0d\u80fd \u5b9e\u65f6\u7684\u8c03\u7528\u5783\u573e\u56de\u6536\u5668\u5bf9\u67d0\u4e2a\u5bf9\u8c61\u6216\u6240\u6709\u5bf9\u8c61\u8fdb\u884c\u5783\u573e\u56de\u6536\u3002\u56de\u6536\u673a\u5236\u6709\u5206\u4ee3\u590d\u5236\u5783\u573e\u56de\u6536\u548c\u6807\u8bb0\u5783\u573e\u56de\u6536\uff0c\u589e\u91cf\u5783\u573e\u56de\u6536\u3002\n\n52\u3001\u8bf7\u8bf4\u51fa\u4f60\u6240\u77e5\u9053\u7684\u7ebf\u7a0b\u540c\u6b65\u7684\u65b9\u6cd5\u3002\nwait():\u4f7f\u4e00\u4e2a\u7ebf\u7a0b\u5904\u4e8e\u7b49\u5f85\u72b6\u6001\uff0c\u5e76\u4e14\u91ca\u653e\u6240\u6301\u6709\u7684\u5bf9\u8c61\u7684lock\u3002\nsleep():\u4f7f\u4e00\u4e2a\u6b63\u5728\u8fd0\u884c\u7684\u7ebf\u7a0b\u5904\u4e8e\u7761\u7720\u72b6\u6001\uff0c\u662f\u4e00\u4e2a\u9759\u6001\u65b9\u6cd5\uff0c\u8c03\u7528\u6b64\u65b9\u6cd5\u8981\u6355\u6349InterruptedException\u5f02\u5e38\u3002\nnotify():\u5524\u9192\u4e00\u4e2a\u5904\u4e8e\u7b49\u5f85\u72b6\u6001\u7684\u7ebf\u7a0b\uff0c\u6ce8\u610f\u7684\u662f\u5728\u8c03\u7528\u6b64\u65b9\u6cd5\u7684\u65f6\u5019\uff0c\u5e76\u4e0d\u80fd\u786e\u5207\u7684\u5524\u9192\u67d0\u4e00\u4e2a\u7b49\u5f85\u72b6\u6001\u7684\u7ebf\u7a0b\uff0c\u800c\u662f\u7531JVM\u786e\u5b9a\u5524\u9192\u54ea\u4e2a\u7ebf\u7a0b\uff0c\u800c\u4e14\u4e0d\u662f\u6309\u4f18\u5148\u7ea7\u3002\nAllnotity():\u5524\u9192\u6240\u6709\u5904\u5165\u7b49\u5f85\u72b6\u6001\u7684\u7ebf\u7a0b\uff0c\u6ce8\u610f\u5e76\u4e0d\u662f\u7ed9\u6240\u6709\u5524\u9192\u7ebf\u7a0b\u4e00\u4e2a\u5bf9\u8c61\u7684\u9501\uff0c\u800c\u662f\u8ba9\u5b83\u4eec\u7ade\u4e89\u3002\n\n53\u3001\u4f60\u6240\u77e5\u9053\u7684\u96c6\u5408\u7c7b\u90fd\u6709\u54ea\u4e9b\uff1f\u4e3b\u8981\u65b9\u6cd5\uff1f\n\u6700\u5e38\u7528\u7684\u96c6\u5408\u7c7b\u662f List \u548c Map\u3002 List \u7684\u5177\u4f53\u5b9e\u73b0\u5305\u62ec ArrayList \u548c Vector\uff0c\u5b83\u4eec\u662f\u53ef\u53d8\u5927\u5c0f\u7684\u5217\u8868\uff0c\u6bd4\u8f83\u9002\u5408\u6784\u5efa\u3001\u5b58\u50a8\u548c\u64cd\u4f5c\u4efb\u4f55\u7c7b\u578b\u5bf9\u8c61\u7684\u5143\u7d20\u5217\u8868\u3002 List \u9002\u7528\u4e8e\u6309\u6570\u503c\u7d22\u5f15\u8bbf\u95ee\u5143\u7d20\u7684\u60c5\u5f62\u3002\nMap \u63d0\u4f9b\u4e86\u4e00\u4e2a\u66f4\u901a\u7528\u7684\u5143\u7d20\u5b58\u50a8\u65b9\u6cd5\u3002 Map \u96c6\u5408\u7c7b\u7528\u4e8e\u5b58\u50a8\u5143\u7d20\u5bf9\uff08\u79f0\u4f5c\"\u952e\"\u548c\"\u503c\"\uff09\uff0c\u5176\u4e2d\u6bcf\u4e2a\u952e\u6620\u5c04\u5230\u4e00\u4e2a\u503c\u3002\n\n54\u3001\u63cf\u8ff0\u4e00\u4e0bJVM\u52a0\u8f7dclass\u6587\u4ef6\u7684\u539f\u7406\u673a\u5236?\nJVM\u4e2d\u7c7b\u7684\u88c5\u8f7d\u662f\u7531ClassLoader\u548c\u5b83\u7684\u5b50\u7c7b\u6765\u5b9e\u73b0\u7684,Java ClassLoader \u662f\u4e00\u4e2a\u91cd\u8981\u7684Java\u8fd0\u884c\u65f6\u7cfb\u7edf\u7ec4\u4ef6\u3002\u5b83\u8d1f\u8d23\u5728\u8fd0\u884c\u65f6\u67e5\u627e\u548c\u88c5\u5165\u7c7b\u6587\u4ef6\u7684\u7c7b\u3002\n\n55\u3001char\u578b\u53d8\u91cf\u4e2d\u80fd\u4e0d\u80fd\u5b58\u8d2e\u4e00\u4e2a\u4e2d\u6587\u6c49\u5b57?\u4e3a\u4ec0\u4e48?\n\u80fd\u591f\u5b9a\u4e49\u6210\u4e3a\u4e00\u4e2a\u4e2d\u6587\u7684\uff0c\u56e0\u4e3ajava\u4e2d\u4ee5unicode\u7f16\u7801\uff0c\u4e00\u4e2achar\u536016\u4e2a\u5b57\u8282\uff0c\u6240\u4ee5\u653e\u4e00\u4e2a\u4e2d\u6587\u662f\u6ca1\u95ee\u9898\u7684\n\n56\u3001\u591a\u7ebf\u7a0b\u6709\u51e0\u79cd\u5b9e\u73b0\u65b9\u6cd5,\u90fd\u662f\u4ec0\u4e48?\u540c\u6b65\u6709\u51e0\u79cd\u5b9e\u73b0\u65b9\u6cd5,\u90fd\u662f\u4ec0\u4e48?\n\u591a\u7ebf\u7a0b\u6709\u4e24\u79cd\u5b9e\u73b0\u65b9\u6cd5\uff0c\u5206\u522b\u662f\u7ee7\u627fThread\u7c7b\u4e0e\u5b9e\u73b0Runnable\u63a5\u53e3\n\u540c\u6b65\u7684\u5b9e\u73b0\u65b9\u9762\u6709\u4e24\u79cd\uff0c\u5206\u522b\u662fsynchronized,wait\u4e0enotify\n\n57\u3001JSP\u7684\u5185\u7f6e\u5bf9\u8c61\u53ca\u65b9\u6cd5\u3002\nrequest\u8868\u793aHttpServletRequest\u5bf9\u8c61\u3002\u5b83\u5305\u542b\u4e86\u6709\u5173\u6d4f\u89c8\u5668\u8bf7\u6c42\u7684\u4fe1\u606f\uff0c\u5e76\u4e14\u63d0\u4f9b\u4e86\u51e0\u4e2a\u7528\u4e8e\u83b7\u53d6cookie, header, \u548csession\u6570\u636e\u7684\u6709\u7528\u7684\u65b9\u6cd5\u3002\nresponse\u8868\u793aHttpServletResponse\u5bf9\u8c61\uff0c\u5e76\u63d0\u4f9b\u4e86\u51e0\u4e2a\u7528\u4e8e\u8bbe\u7f6e\u9001\u56de \u6d4f\u89c8\u5668\u7684\u54cd\u5e94\u7684\u65b9\u6cd5\uff08\u5982cookies,\u5934\u4fe1\u606f\u7b49\uff09\nout\u5bf9\u8c61\u662fjavax.jsp.JspWriter\u7684\u4e00\u4e2a\u5b9e\u4f8b\uff0c\u5e76\u63d0\u4f9b\u4e86\u51e0\u4e2a\u65b9\u6cd5\u4f7f\u4f60\u80fd\u7528\u4e8e\u5411\u6d4f\u89c8\u5668\u56de\u9001\u8f93\u51fa\u7ed3\u679c\u3002\npageContext\u8868\u793a\u4e00\u4e2ajavax.servlet.jsp.PageContext\u5bf9\u8c61\u3002\u5b83\u662f\u7528\u4e8e\u65b9\u4fbf\u5b58\u53d6\u5404\u79cd\u8303\u56f4\u7684\u540d\u5b57\u7a7a\u95f4\u3001servlet\u76f8\u5173\u7684\u5bf9\u8c61\u7684API\uff0c\u5e76\u4e14\u5305\u88c5\u4e86\u901a\u7528\u7684servlet\u76f8\u5173\u529f\u80fd\u7684\u65b9\u6cd5\u3002\nsession\u8868\u793a\u4e00\u4e2a\u8bf7\u6c42\u7684javax.servlet.http.HttpSession\u5bf9\u8c61\u3002Session\u53ef\u4ee5\u5b58\u8d2e\u7528\u6237\u7684\u72b6\u6001\u4fe1\u606f\napplicaton \u8868\u793a\u4e00\u4e2ajavax.servle.ServletContext\u5bf9\u8c61\u3002\u8fd9\u6709\u52a9\u4e8e\u67e5\u627e\u6709\u5173servlet\u5f15\u64ce\u548cservlet\u73af\u5883\u7684\u4fe1\u606f\nconfig\u8868\u793a\u4e00\u4e2ajavax.servlet.ServletConfig\u5bf9\u8c61\u3002\u8be5\u5bf9\u8c61\u7528\u4e8e\u5b58\u53d6servlet\u5b9e\u4f8b\u7684\u521d\u59cb\u5316\u53c2\u6570\u3002\npage\u8868\u793a\u4ece\u8be5\u9875\u9762\u4ea7\u751f\u7684\u4e00\u4e2aservlet\u5b9e\u4f8b\n\n58\u3001\u7ebf\u7a0b\u7684\u57fa\u672c\u6982\u5ff5\u3001\u7ebf\u7a0b\u7684\u57fa\u672c\u72b6\u6001\u4ee5\u53ca\u72b6\u6001\u4e4b\u95f4\u7684\u5173\u7cfb\n\u7ebf\u7a0b\u6307\u5728\u7a0b\u5e8f\u6267\u884c\u8fc7\u7a0b\u4e2d\uff0c\u80fd\u591f\u6267\u884c\u7a0b\u5e8f\u4ee3\u7801\u7684\u4e00\u4e2a\u6267\u884c\u5355\u4f4d\uff0c\u6bcf\u4e2a\u7a0b\u5e8f\u81f3\u5c11\u90fd\u6709\u4e00\u4e2a\u7ebf\u7a0b\uff0c\u4e5f\u5c31\u662f\u7a0b\u5e8f\u672c\u8eab\u3002\nJava\u4e2d\u7684\u7ebf\u7a0b\u6709\u56db\u79cd\u72b6\u6001\u5206\u522b\u662f\uff1a\u8fd0\u884c\u3001\u5c31\u7eea\u3001\u6302\u8d77\u3001\u7ed3\u675f\u3002\n\n59\u3001JSP\u7684\u5e38\u7528\u6307\u4ee4\n\nisErrorPage(\u662f\u5426\u80fd\u4f7f\u7528Exception\u5bf9\u8c61)\uff0cisELIgnored(\u662f\u5426\u5ffd\u7565\u8868\u8fbe\u5f0f)\n\n\" target=\"_blank\">http:\/\/……”%><\/p>\n

60\u3001\u4ec0\u4e48\u60c5\u51b5\u4e0b\u8c03\u7528doGet()\u548cdoPost()\uff1f
\nJsp\u9875\u9762\u4e2d\u7684form\u6807\u7b7e\u91cc\u7684method\u5c5e\u6027\u4e3aget\u65f6\u8c03\u7528doGet()\uff0c\u4e3apost\u65f6\u8c03\u7528doPost()\u3002<\/p>\n

61\u3001servlet\u7684\u751f\u547d\u5468\u671f
\nweb\u5bb9\u5668\u52a0\u8f7dservlet\uff0c\u751f\u547d\u5468\u671f\u5f00\u59cb\u3002\u901a\u8fc7\u8c03\u7528servlet\u7684init()\u65b9\u6cd5\u8fdb\u884cservlet\u7684\u521d\u59cb\u5316\u3002\u901a\u8fc7\u8c03\u7528service()\u65b9\u6cd5\u5b9e\u73b0\uff0c\u6839\u636e\u8bf7\u6c42\u7684\u4e0d\u540c\u8c03\u7528\u4e0d\u540c\u7684do***()\u65b9\u6cd5\u3002\u7ed3\u675f\u670d\u52a1\uff0cweb\u5bb9\u5668\u8c03\u7528servlet\u7684destroy()\u65b9\u6cd5\u3002<\/p>\n

62\u3001\u5982\u4f55\u73b0\u5b9eservlet\u7684\u5355\u7ebf\u7a0b\u6a21\u5f0f<\/p>\n

63\u3001\u9875\u9762\u95f4\u5bf9\u8c61\u4f20\u9012\u7684\u65b9\u6cd5
\nrequest\uff0csession\uff0capplication\uff0ccookie\u7b49<\/p>\n

64\u3001JSP\u548cServlet\u6709\u54ea\u4e9b\u76f8\u540c\u70b9\u548c\u4e0d\u540c\u70b9\uff0c\u4ed6\u4eec\u4e4b\u95f4\u7684\u8054\u7cfb\u662f\u4ec0\u4e48\uff1f
\nJSP \u662fServlet\u6280\u672f\u7684\u6269\u5c55\uff0c\u672c\u8d28\u4e0a\u662fServlet\u7684\u7b80\u6613\u65b9\u5f0f\uff0c\u66f4\u5f3a\u8c03\u5e94\u7528\u7684\u5916\u8868\u8868\u8fbe\u3002JSP\u7f16\u8bd1\u540e\u662f”\u7c7bservlet”\u3002Servlet\u548cJSP\u6700 \u4e3b\u8981\u7684\u4e0d\u540c\u70b9\u5728\u4e8e\uff0cServlet\u7684\u5e94\u7528\u903b\u8f91\u662f\u5728Java\u6587\u4ef6\u4e2d\uff0c\u5e76\u4e14\u5b8c\u5168\u4ece\u8868\u793a\u5c42\u4e2d\u7684HTML\u91cc\u5206\u79bb\u5f00\u6765\u3002\u800cJSP\u7684\u60c5\u51b5\u662fJava\u548cHTML\u53ef\u4ee5\u7ec4\u5408 \u6210\u4e00\u4e2a\u6269\u5c55\u540d\u4e3a.jsp\u7684\u6587\u4ef6\u3002JSP\u4fa7\u91cd\u4e8e\u89c6\u56fe\uff0cServlet\u4e3b\u8981\u7528\u4e8e\u63a7\u5236\u903b\u8f91\u3002<\/p>\n

65\u3001\u56db\u79cd\u4f1a\u8bdd\u8ddf\u8e2a\u6280\u672f
\n\u4f1a\u8bdd\u4f5c\u7528\u57dfServletsJSP \u9875\u9762\u63cf\u8ff0
\npage\u5426\u662f\u4ee3\u8868\u4e0e\u4e00\u4e2a\u9875\u9762\u76f8\u5173\u7684\u5bf9\u8c61\u548c\u5c5e\u6027\u3002\u4e00\u4e2a\u9875\u9762\u7531\u4e00\u4e2a\u7f16\u8bd1\u597d\u7684 Java servlet \u7c7b\uff08\u53ef\u4ee5\u5e26\u6709\u4efb\u4f55\u7684 include \u6307\u4ee4\uff0c\u4f46\u662f\u6ca1\u6709 include \u52a8\u4f5c\uff09\u8868\u793a\u3002\u8fd9\u65e2\u5305\u62ec servlet \u53c8\u5305\u62ec\u88ab\u7f16\u8bd1\u6210 servlet \u7684 JSP \u9875\u9762
\nrequest\u662f\u662f\u4ee3\u8868\u4e0e Web \u5ba2\u6237\u673a\u53d1\u51fa\u7684\u4e00\u4e2a\u8bf7\u6c42\u76f8\u5173\u7684\u5bf9\u8c61\u548c\u5c5e\u6027\u3002\u4e00\u4e2a\u8bf7\u6c42\u53ef\u80fd\u8de8\u8d8a\u591a\u4e2a\u9875\u9762\uff0c\u6d89\u53ca\u591a\u4e2a Web \u7ec4\u4ef6\uff08\u7531\u4e8e forward \u6307\u4ee4\u548c include \u52a8\u4f5c\u7684\u5173\u7cfb\uff09
\nsession\u662f\u662f\u4ee3\u8868\u4e0e\u7528\u4e8e\u67d0\u4e2a Web \u5ba2\u6237\u673a\u7684\u4e00\u4e2a\u7528\u6237\u4f53\u9a8c\u76f8\u5173\u7684\u5bf9\u8c61\u548c\u5c5e\u6027\u3002\u4e00\u4e2a Web \u4f1a\u8bdd\u53ef\u4ee5\u4e5f\u7ecf\u5e38\u4f1a\u8de8\u8d8a\u591a\u4e2a\u5ba2\u6237\u673a\u8bf7\u6c42
\napplication\u662f\u662f\u4ee3\u8868\u4e0e\u6574\u4e2a Web \u5e94\u7528\u7a0b\u5e8f\u76f8\u5173\u7684\u5bf9\u8c61\u548c\u5c5e\u6027\u3002\u8fd9\u5b9e\u8d28\u4e0a\u662f\u8de8\u8d8a\u6574\u4e2a Web \u5e94\u7528\u7a0b\u5e8f\uff0c\u5305\u62ec\u591a\u4e2a\u9875\u9762\u3001\u8bf7\u6c42\u548c\u4f1a\u8bdd\u7684\u4e00\u4e2a\u5168\u5c40\u4f5c\u7528\u57df<\/p>\n

66\u3001Request\u5bf9\u8c61\u7684\u4e3b\u8981\u65b9\u6cd5\uff1a
\nsetAttribute(String name,Object)\uff1a\u8bbe\u7f6e\u540d\u5b57\u4e3aname\u7684request\u7684\u53c2\u6570\u503c
\ngetAttribute(String name)\uff1a\u8fd4\u56de\u7531name\u6307\u5b9a\u7684\u5c5e\u6027\u503c
\ngetAttributeNames()\uff1a\u8fd4\u56derequest\u5bf9\u8c61\u6240\u6709\u5c5e\u6027\u7684\u540d\u5b57\u96c6\u5408\uff0c\u7ed3\u679c\u662f\u4e00\u4e2a\u679a\u4e3e\u7684\u5b9e\u4f8b
\ngetCookies()\uff1a\u8fd4\u56de\u5ba2\u6237\u7aef\u7684\u6240\u6709Cookie\u5bf9\u8c61\uff0c\u7ed3\u679c\u662f\u4e00\u4e2aCookie\u6570\u7ec4
\ngetCharacterEncoding()\uff1a\u8fd4\u56de\u8bf7\u6c42\u4e2d\u7684\u5b57\u7b26\u7f16\u7801\u65b9\u5f0f
\ngetContentLength()\uff1a\u8fd4\u56de\u8bf7\u6c42\u7684Body\u7684\u957f\u5ea6
\ngetHeader(String name)\uff1a\u83b7\u5f97HTTP\u534f\u8bae\u5b9a\u4e49\u7684\u6587\u4ef6\u5934\u4fe1\u606f
\ngetHeaders(String name)\uff1a\u8fd4\u56de\u6307\u5b9a\u540d\u5b57\u7684request Header\u7684\u6240\u6709\u503c\uff0c\u7ed3\u679c\u662f\u4e00\u4e2a\u679a\u4e3e\u7684\u5b9e\u4f8b
\ngetHeaderNames()\uff1a\u8fd4\u56de\u6240\u4ee5request Header\u7684\u540d\u5b57\uff0c\u7ed3\u679c\u662f\u4e00\u4e2a\u679a\u4e3e\u7684\u5b9e\u4f8b
\ngetInputStream()\uff1a\u8fd4\u56de\u8bf7\u6c42\u7684\u8f93\u5165\u6d41\uff0c\u7528\u4e8e\u83b7\u5f97\u8bf7\u6c42\u4e2d\u7684\u6570\u636e
\ngetMethod()\uff1a\u83b7\u5f97\u5ba2\u6237\u7aef\u5411\u670d\u52a1\u5668\u7aef\u4f20\u9001\u6570\u636e\u7684\u65b9\u6cd5
\ngetParameter(String name)\uff1a\u83b7\u5f97\u5ba2\u6237\u7aef\u4f20\u9001\u7ed9\u670d\u52a1\u5668\u7aef\u7684\u6709name\u6307\u5b9a\u7684\u53c2\u6570\u503c
\ngetParameterNames()\uff1a\u83b7\u5f97\u5ba2\u6237\u7aef\u4f20\u9001\u7ed9\u670d\u52a1\u5668\u7aef\u7684\u6240\u6709\u53c2\u6570\u7684\u540d\u5b57\uff0c\u7ed3\u679c\u662f\u4e00\u4e2a\u679a\u4e3e\u7684\u5b9e\u4f8b
\ngetParameterValues(String name)\uff1a\u83b7\u5f97\u6709name\u6307\u5b9a\u7684\u53c2\u6570\u7684\u6240\u6709\u503c
\ngetProtocol()\uff1a\u83b7\u53d6\u5ba2\u6237\u7aef\u5411\u670d\u52a1\u5668\u7aef\u4f20\u9001\u6570\u636e\u6240\u4f9d\u636e\u7684\u534f\u8bae\u540d\u79f0
\ngetQueryString()\uff1a\u83b7\u5f97\u67e5\u8be2\u5b57\u7b26\u4e32
\ngetRequestURI()\uff1a\u83b7\u53d6\u53d1\u51fa\u8bf7\u6c42\u5b57\u7b26\u4e32\u7684\u5ba2\u6237\u7aef\u5730\u5740
\ngetRemoteAddr()\uff1a\u83b7\u53d6\u5ba2\u6237\u7aef\u7684IP\u5730\u5740
\ngetRemoteHost()\uff1a\u83b7\u53d6\u5ba2\u6237\u7aef\u7684\u540d\u5b57
\ngetSession([Boolean create])\uff1a\u8fd4\u56de\u548c\u8bf7\u6c42\u76f8\u5173Session
\ngetServerName()\uff1a\u83b7\u53d6\u670d\u52a1\u5668\u7684\u540d\u5b57
\ngetServletPath()\uff1a\u83b7\u53d6\u5ba2\u6237\u7aef\u6240\u8bf7\u6c42\u7684\u811a\u672c\u6587\u4ef6\u7684\u8def\u5f84
\ngetServerPort()\uff1a\u83b7\u53d6\u670d\u52a1\u5668\u7684\u7aef\u53e3\u53f7
\nremoveAttribute(String name)\uff1a\u5220\u9664\u8bf7\u6c42\u4e2d\u7684\u4e00\u4e2a\u5c5e\u6027<\/p>\n

67\u3001J2EE\u662f\u6280\u672f\u8fd8\u662f\u5e73\u53f0\u8fd8\u662f\u6846\u67b6\uff1f
\nJ2EE\u672c\u8eab\u662f\u4e00\u4e2a\u6807\u51c6\uff0c\u4e00\u4e2a\u4e3a\u4f01\u4e1a\u5206\u5e03\u5f0f\u5e94\u7528\u7684\u5f00\u53d1\u63d0\u4f9b\u7684\u6807\u51c6\u5e73\u53f0\u3002
\nJ2EE\u4e5f\u662f\u4e00\u4e2a\u6846\u67b6\uff0c\u5305\u62ecJDBC\u3001JNDI\u3001RMI\u3001JMS\u3001EJB\u3001JTA\u7b49\u6280\u672f\u3002<\/p>\n

68\u3001\u6211\u4eec\u5728web\u5e94\u7528\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u7ecf\u5e38\u9047\u5230\u8f93\u51fa\u67d0\u79cd\u7f16\u7801\u7684\u5b57\u7b26\uff0c\u5982iso8859-1\u7b49\uff0c\u5982\u4f55\u8f93\u51fa\u4e00\u4e2a\u67d0\u79cd\u7f16\u7801\u7684\u5b57\u7b26\u4e32\uff1f
\nPublic String translate (String str) {
\nString tempStr = “”;
\ntry {
\ntempStr = new String(str.getBytes(“ISO-8859-1”), “GBK”);
\ntempStr = tempStr.trim();
\n}
\ncatch (Exception e) {
\nSystem.err.println(e.getMessage());
\n}
\nreturn tempStr;
\n}<\/p>\n

69\u3001\u7b80\u8ff0\u903b\u8f91\u64cd\u4f5c(&,|,^)\u4e0e\u6761\u4ef6\u64cd\u4f5c(&&,||)\u7684\u533a\u522b\u3002
\n\u533a\u522b\u4e3b\u8981\u7b54\u4e24\u70b9\uff1aa.\u6761\u4ef6\u64cd\u4f5c\u53ea\u80fd\u64cd\u4f5c\u5e03\u5c14\u578b\u7684,\u800c\u903b\u8f91\u64cd\u4f5c\u4e0d\u4ec5\u53ef\u4ee5\u64cd\u4f5c\u5e03\u5c14\u578b,\u800c\u4e14\u53ef\u4ee5\u64cd\u4f5c\u6570\u503c\u578b
\nb.\u903b\u8f91\u64cd\u4f5c\u4e0d\u4f1a\u4ea7\u751f\u77ed\u8def<\/p>\n

70\u3001XML\u6587\u6863\u5b9a\u4e49\u6709\u51e0\u79cd\u5f62\u5f0f\uff1f\u5b83\u4eec\u4e4b\u95f4\u6709\u4f55\u672c\u8d28\u533a\u522b\uff1f\u89e3\u6790XML\u6587\u6863\u6709\u54ea\u51e0\u79cd\u65b9\u5f0f\uff1f
\na: \u4e24\u79cd\u5f62\u5f0f dtd schema
\nb: \u672c\u8d28\u533a\u522b:schema\u672c\u8eab\u662fxml\u7684\uff0c\u53ef\u4ee5\u88abXML\u89e3\u6790\u5668\u89e3\u6790(\u8fd9\u4e5f\u662f\u4eceDTD\u4e0a\u53d1\u5c55schema\u7684\u6839\u672c\u76ee\u7684)
\nc:\u6709DOM,SAX,STAX\u7b49
\nDOM:\u5904\u7406\u5927\u578b\u6587\u4ef6\u65f6\u5176\u6027\u80fd\u4e0b\u964d\u7684\u975e\u5e38\u5389\u5bb3\u3002\u8fd9\u4e2a\u95ee\u9898\u662f\u7531DOM\u7684\u6811\u7ed3\u6784\u6240\u9020\u6210\u7684\uff0c\u8fd9\u79cd\u7ed3\u6784\u5360\u7528\u7684\u5185\u5b58\u8f83\u591a\uff0c\u800c\u4e14DOM\u5fc5\u987b\u5728\u89e3\u6790\u6587\u4ef6\u4e4b\u524d\u628a\u6574\u4e2a\u6587\u6863\u88c5\u5165\u5185\u5b58,\u9002\u5408\u5bf9XML\u7684\u968f\u673a\u8bbf\u95ee
\nSAX:\u4e0d\u73b0\u4e8eDOM,SAX\u662f\u4e8b\u4ef6\u9a71\u52a8\u578b\u7684XML\u89e3\u6790\u65b9\u5f0f\u3002\u5b83\u987a\u5e8f\u8bfb\u53d6XML\u6587\u4ef6\uff0c\u4e0d\u9700\u8981\u4e00\u6b21\u5168\u90e8\u88c5\u8f7d\u6574\u4e2a\u6587\u4ef6\u3002\u5f53\u9047\u5230\u50cf\u6587\u4ef6\u5f00\u5934\uff0c\u6587\u6863\u7ed3\u675f\uff0c\u6216\u8005\u6807\u7b7e\u5f00\u5934\u4e0e\u6807\u7b7e\u7ed3\u675f\u65f6\uff0c\u5b83\u4f1a\u89e6\u53d1\u4e00\u4e2a\u4e8b\u4ef6\uff0c\u7528\u6237\u901a\u8fc7\u5728\u5176\u56de\u8c03\u4e8b\u4ef6\u4e2d\u5199\u5165\u5904\u7406\u4ee3\u7801\u6765\u5904\u7406XML\u6587\u4ef6\uff0c\u9002\u5408\u5bf9XML\u7684\u987a\u5e8f\u8bbf\u95ee
\nSTAX:Streaming API for XML (StAX)<\/p>\n

xml\u6587\u6863\u6709\u4e24\u79cd\u5b9a\u4e49\u65b9\u6cd5\uff1a
\ndtd\uff1a\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\uff08data type definition\uff09\uff0c\u7528\u4ee5\u63cf\u8ff0XML\u6587\u6863\u7684\u6587\u6863\u7ed3\u6784\uff0c\u662f\u65e9\u671f\u7684XML\u6587\u6863\u5b9a\u4e49\u5f62\u5f0f\u3002
\nschema\uff1a\u5176\u672c\u8eab\u662f\u57fa\u4e8eXML\u8bed\u8a00\u7f16\u5199\u7684\uff0c\u5728\u7c7b\u578b\u548c\u8bed\u6cd5\u4e0a\u7684\u9650\u5b9a\u80fd\u529b\u6bd4dtd\u5f3a\uff0c\u5904\u7406\u4e5f\u6bd4\u8f83\u65b9\u4fbf\uff0c\u56e0\u4e3a\u6b64\u6b63\u9010\u6e10\u4ee3\u66ffdtd\u6210\u4e3a\u65b0\u7684\u6a21\u5f0f\u5b9a\u4e49\u8bed\u8a00\u3002<\/p>\n

71\u3001\u7b80\u8ff0synchronized\u548cjava.util.concurrent.locks.Lock\u7684\u5f02\u540c \uff1f
\n\u4e3b\u8981\u76f8\u540c\u70b9\uff1aLock\u80fd\u5b8c\u6210synchronized\u6240\u5b9e\u73b0\u7684\u6240\u6709\u529f\u80fd
\n\u4e3b\u8981\u4e0d\u540c\u70b9\uff1aLock\u6709\u6bd4synchronized\u66f4\u7cbe\u786e\u7684\u7ebf\u7a0b\u8bed\u4e49\u548c\u66f4\u597d\u7684\u6027\u80fd\u3002synchronized\u4f1a\u81ea\u52a8\u91ca\u653e\u9501\uff0c\u800cLock\u4e00\u5b9a\u8981\u6c42\u7a0b\u5e8f\u5458\u624b\u5de5\u91ca\u653e\uff0c\u5e76\u4e14\u5fc5\u987b\u5728finally\u4ece\u53e5\u4e2d\u91ca\u653e\u3002<\/p>\n

72\u3001EJB\u7684\u89d2\u8272\u548c\u4e09\u4e2a\u5bf9\u8c61
\n\u4e00 \u4e2a\u5b8c\u6574\u7684\u57fa\u4e8eEJB\u7684\u5206\u5e03\u5f0f\u8ba1\u7b97\u7ed3\u6784\u7531\u516d\u4e2a\u89d2\u8272\u7ec4\u6210\uff0c\u8fd9\u516d\u4e2a\u89d2\u8272\u53ef\u4ee5\u7531\u4e0d\u540c\u7684\u5f00\u53d1\u5546\u63d0\u4f9b\uff0c\u6bcf\u4e2a\u89d2\u8272\u6240\u4f5c\u7684\u5de5\u4f5c\u5fc5\u987b\u9075\u5faaSun\u516c\u53f8\u63d0\u4f9b\u7684EJB\u89c4\u8303\uff0c\u4ee5\u4fdd\u8bc1 \u5f7c\u6b64\u4e4b\u95f4\u7684\u517c\u5bb9\u6027\u3002\u8fd9\u516d\u4e2a\u89d2\u8272\u5206\u522b\u662fEJB\u7ec4\u4ef6\u5f00\u53d1\u8005\uff08Enterprise Bean Provider\uff09 \u3001\u5e94\u7528\u7ec4\u5408\u8005\uff08Application Assembler\uff09\u3001\u90e8\u7f72\u8005\uff08Deployer\uff09\u3001EJB \u670d\u52a1\u5668\u63d0\u4f9b\u8005\uff08EJB Server Provider\uff09\u3001EJB \u5bb9\u5668\u63d0\u4f9b\u8005\uff08EJB Container Provider\uff09\u3001\u7cfb\u7edf\u7ba1\u7406\u5458\uff08System Administrator\uff09
\n\u4e09\u4e2a\u5bf9\u8c61\u662fRemote\uff08Local\uff09\u63a5\u53e3\u3001Home\uff08LocalHome\uff09\u63a5\u53e3\uff0cBean\u7c7b<\/p>\n

73\u3001EJB\u5bb9\u5668\u63d0\u4f9b\u7684\u670d\u52a1
\n\u4e3b\u8981\u63d0\u4f9b\u58f0\u660e\u5468\u671f\u7ba1\u7406\u3001\u4ee3\u7801\u4ea7\u751f\u3001\u6301\u7eed\u6027\u7ba1\u7406\u3001\u5b89\u5168\u3001\u4e8b\u52a1\u7ba1\u7406\u3001\u9501\u548c\u5e76\u53d1\u884c\u7ba1\u7406\u7b49\u670d\u52a1\u3002<\/p>\n

74\u3001EJB\u89c4\u8303\u89c4\u5b9aEJB\u4e2d\u7981\u6b62\u7684\u64cd\u4f5c\u6709\u54ea\u4e9b\uff1f
\n1. \u4e0d\u80fd\u64cd\u4f5c\u7ebf\u7a0b\u548c\u7ebf\u7a0bAPI(\u7ebf\u7a0bAPI\u6307\u975e\u7ebf\u7a0b\u5bf9\u8c61\u7684\u65b9\u6cd5\u5982notify,wait\u7b49)\uff0c2.\u4e0d\u80fd\u64cd\u4f5cawt\uff0c3.\u4e0d\u80fd\u5b9e\u73b0\u670d\u52a1\u5668\u529f\u80fd\uff0c4.\u4e0d\u80fd\u5bf9\u9759\u6001\u5c5e \u751f\u5b58\u53d6\uff0c5.\u4e0d\u80fd\u4f7f\u7528IO\u64cd\u4f5c\u76f4\u63a5\u5b58\u53d6\u6587\u4ef6\u7cfb\u7edf\uff0c6.\u4e0d\u80fd\u52a0\u8f7d\u672c\u5730\u5e93.\uff0c7.\u4e0d\u80fd\u5c06this\u4f5c\u4e3a\u53d8\u91cf\u548c\u8fd4\u56de\uff0c8.\u4e0d\u80fd\u5faa\u73af\u8c03\u7528\u3002<\/p>\n

75\u3001remote\u63a5\u53e3\u548chome\u63a5\u53e3\u4e3b\u8981\u4f5c\u7528
\nremote\u63a5\u53e3\u5b9a\u4e49\u4e86\u4e1a\u52a1\u65b9\u6cd5\uff0c\u7528\u4e8eEJB\u5ba2\u6237\u7aef\u8c03\u7528\u4e1a\u52a1\u65b9\u6cd5\u3002
\nhome\u63a5\u53e3\u662fEJB\u5de5\u5382\u7528\u4e8e\u521b\u5efa\u548c\u79fb\u9664\u67e5\u627eEJB\u5b9e\u4f8b<\/p>\n

76\u3001bean \u5b9e\u4f8b\u7684\u751f\u547d\u5468\u671f
\n\u5bf9 \u4e8eStateless Session Bean\u3001Entity Bean\u3001Message Driven Bean\u4e00\u822c\u5b58\u5728\u7f13\u51b2\u6c60\u7ba1\u7406\uff0c\u800c\u5bf9\u4e8eEntity Bean\u548cStatefull Session Bean\u5b58\u5728Cache\u7ba1\u7406\uff0c\u901a\u5e38\u5305\u542b\u521b\u5efa\u5b9e\u4f8b\uff0c\u8bbe\u7f6e\u4e0a\u4e0b\u6587\u3001\u521b\u5efaEJB Object\uff08create\uff09\u3001\u4e1a\u52a1\u65b9\u6cd5\u8c03\u7528\u3001remove\u7b49\u8fc7\u7a0b\uff0c\u5bf9\u4e8e\u5b58\u5728\u7f13\u51b2\u6c60\u7ba1\u7406\u7684Bean\uff0c\u5728create\u4e4b\u540e\u5b9e\u4f8b\u5e76\u4e0d\u4ece\u5185\u5b58\u6e05\u9664\uff0c\u800c\u662f\u91c7\u7528\u7f13\u51b2 \u6c60\u8c03\u5ea6\u673a\u5236\u4e0d\u65ad\u91cd\u7528\u5b9e\u4f8b\uff0c\u800c\u5bf9\u4e8e\u5b58\u5728Cache\u7ba1\u7406\u7684Bean\u5219\u901a\u8fc7\u6fc0\u6d3b\u548c\u53bb\u6fc0\u6d3b\u673a\u5236\u4fdd\u6301Bean\u7684\u72b6\u6001\u5e76\u9650\u5236\u5185\u5b58\u4e2d\u5b9e\u4f8b\u6570\u91cf\u3002<\/p>\n

77\u3001EJB\u7684\u6fc0\u6d3b\u673a\u5236
\n\u4ee5Stateful Session Bean \u4e3a\u4f8b\uff1a\u5176Cache\u5927\u5c0f\u51b3\u5b9a\u4e86\u5185\u5b58\u4e2d\u53ef\u4ee5\u540c\u65f6\u5b58\u5728\u7684Bean\u5b9e\u4f8b\u7684\u6570\u91cf\uff0c\u6839\u636eMRU\u6216NRU\u7b97\u6cd5\uff0c\u5b9e\u4f8b\u5728\u6fc0\u6d3b\u548c\u53bb\u6fc0\u6d3b\u72b6\u6001\u4e4b\u95f4\u8fc1\u79fb\uff0c\u6fc0\u6d3b\u673a\u5236\u662f\u5f53\u5ba2\u6237\u7aef\u8c03 \u7528\u67d0\u4e2aEJB\u5b9e\u4f8b\u4e1a\u52a1\u65b9\u6cd5\u65f6\uff0c\u5982\u679c\u5bf9\u5e94EJB Object\u53d1\u73b0\u81ea\u5df1\u6ca1\u6709\u7ed1\u5b9a\u5bf9\u5e94\u7684Bean\u5b9e\u4f8b\u5219\u4ece\u5176\u53bb\u6fc0\u6d3bBean\u5b58\u50a8\u4e2d\uff08\u901a\u8fc7\u5e8f\u5217\u5316\u673a\u5236\u5b58\u50a8\u5b9e\u4f8b\uff09\u56de\u590d\uff08\u6fc0\u6d3b\uff09\u6b64\u5b9e\u4f8b\u3002\u72b6\u6001\u53d8\u8fc1\u524d\u4f1a\u8c03\u7528\u5bf9\u5e94\u7684 ejbActive\u548cejbPassivate\u65b9\u6cd5\u3002<\/p>\n

78\u3001EJB\u7684\u51e0\u79cd\u7c7b\u578b
\n\u4f1a\u8bdd\uff08Session\uff09Bean \uff0c\u5b9e\u4f53\uff08Entity\uff09Bean \u6d88\u606f\u9a71\u52a8\u7684\uff08Message Driven\uff09Bean
\n\u4f1a\u8bddBean\u53c8\u53ef\u5206\u4e3a\u6709\u72b6\u6001\uff08Stateful\uff09\u548c\u65e0\u72b6\u6001\uff08Stateless\uff09\u4e24\u79cd
\n\u5b9e\u4f53Bean\u53ef\u5206\u4e3aBean\u7ba1\u7406\u7684\u6301\u7eed\u6027\uff08BMP\uff09\u548c\u5bb9\u5668\u7ba1\u7406\u7684\u6301\u7eed\u6027\uff08CMP\uff09\u4e24\u79cd<\/p>\n

79\u3001\u5ba2\u670d\u7aef\u8c03\u7528EJB\u5bf9\u8c61\u7684\u51e0\u4e2a\u57fa\u672c\u6b65\u9aa4
\n\u8bbe\u7f6eJNDI\u670d\u52a1\u5de5\u5382\u4ee5\u53caJNDI\u670d\u52a1\u5730\u5740\u7cfb\u7edf\u5c5e\u6027\uff0c\u67e5\u627eHome\u63a5\u53e3\uff0c\u4eceHome\u63a5\u53e3\u8c03\u7528Create\u65b9\u6cd5\u521b\u5efaRemote\u63a5\u53e3\uff0c\u901a\u8fc7Remote\u63a5\u53e3\u8c03\u7528\u5176\u4e1a\u52a1\u65b9\u6cd5\u3002<\/p>\n

80\u3001\u5982\u4f55\u7ed9weblogic\u6307\u5b9a\u5927\u5c0f\u7684\u5185\u5b58?
\n\u5728\u542f\u52a8Weblogic\u7684\u811a\u672c\u4e2d\uff08\u4f4d\u4e8e\u6240\u5728Domian\u5bf9\u5e94\u670d\u52a1\u5668\u76ee\u5f55\u4e0b\u7684startServerName\uff09\uff0c\u589e\u52a0set MEM_ARGS=-Xms32m -Xmx200m\uff0c\u53ef\u4ee5\u8c03\u6574\u6700\u5c0f\u5185\u5b58\u4e3a32M\uff0c\u6700\u5927200M<\/p>\n

81\u3001\u5982\u4f55\u8bbe\u5b9a\u7684weblogic\u7684\u70ed\u542f\u52a8\u6a21\u5f0f(\u5f00\u53d1\u6a21\u5f0f)\u4e0e\u4ea7\u54c1\u53d1\u5e03\u6a21\u5f0f?
\n\u53ef\u4ee5\u5728\u7ba1\u7406\u63a7\u5236\u53f0\u4e2d\u4fee\u6539\u5bf9\u5e94\u670d\u52a1\u5668\u7684\u542f\u52a8\u6a21\u5f0f\u4e3a\u5f00\u53d1\u6216\u4ea7\u54c1\u6a21\u5f0f\u4e4b\u4e00\u3002\u6216\u8005\u4fee\u6539\u670d\u52a1\u7684\u542f\u52a8\u6587\u4ef6\u6216\u8005commenv\u6587\u4ef6\uff0c\u589e\u52a0set PRODUCTION_MODE=true\u3002<\/p>\n

82\u3001\u5982\u4f55\u542f\u52a8\u65f6\u4e0d\u9700\u8f93\u5165\u7528\u6237\u540d\u4e0e\u5bc6\u7801?
\n\u4fee\u6539\u670d\u52a1\u542f\u52a8\u6587\u4ef6\uff0c\u589e\u52a0 WLS_USER\u548cWLS_PW\u9879\u3002\u4e5f\u53ef\u4ee5\u5728boot.properties\u6587\u4ef6\u4e2d\u589e\u52a0\u52a0\u5bc6\u8fc7\u7684\u7528\u6237\u540d\u548c\u5bc6\u7801.<\/p>\n

83\u3001\u5728weblogic\u7ba1\u7406\u5236\u53f0\u4e2d\u5bf9\u4e00\u4e2a\u5e94\u7528\u57df(\u6216\u8005\u8bf4\u662f\u4e00\u4e2a\u7f51\u7ad9,Domain)\u8fdb\u884cjms\u53caejb\u6216\u8fde\u63a5\u6c60\u7b49\u76f8\u5173\u4fe1\u606f\u8fdb\u884c\u914d\u7f6e\u540e,\u5b9e\u9645\u4fdd\u5b58\u5728\u4ec0\u4e48\u6587\u4ef6\u4e2d?
\n\u4fdd\u5b58\u5728\u6b64Domain\u7684config.xml\u6587\u4ef6\u4e2d\uff0c\u5b83\u662f\u670d\u52a1\u5668\u7684\u6838\u5fc3\u914d\u7f6e\u6587\u4ef6\u3002<\/p>\n

84\u3001\u8bf4\u8bf4weblogic\u4e2d\u4e00\u4e2aDomain\u7684\u7f3a\u7701\u76ee\u5f55\u7ed3\u6784?\u6bd4\u5982\u8981\u5c06\u4e00\u4e2a\u7b80\u5355\u7684helloWorld.jsp\u653e\u5165\u4f55\u76ee\u5f55\u4e0b,\u7136\u7684\u5728\u6d4f\u89c8\u5668\u4e0a\u5c31\u53ef\u6253\u5165 http:\/\/\u4e3b\u673a:\u7aef\u53e3\u53f7\/\/helloword.jsp\u5c31\u53ef\u4ee5\u770b\u5230\u8fd0\u884c\u7ed3\u679c\u4e86? \u53c8\u6bd4\u5982\u8fd9\u5176\u4e2d\u7528\u5230\u4e86\u4e00\u4e2a\u81ea\u5df1\u5199\u7684javaBean\u8be5\u5982\u4f55\u529e?
\nDomain \u76ee\u5f55\u670d\u52a1\u5668\u76ee\u5f55applications\uff0c\u5c06\u5e94\u7528\u76ee\u5f55\u653e\u5728\u6b64\u76ee\u5f55\u4e0b\u5c06\u53ef\u4ee5\u4f5c\u4e3a\u5e94\u7528\u8bbf\u95ee\uff0c\u5982\u679c\u662fWeb\u5e94\u7528\uff0c\u5e94\u7528\u76ee\u5f55\u9700\u8981\u6ee1\u8db3Web\u5e94\u7528\u76ee\u5f55\u8981\u6c42\uff0cjsp\u6587 \u4ef6\u53ef\u4ee5\u76f4\u63a5\u653e\u5728\u5e94\u7528\u76ee\u5f55\u4e2d\uff0cJavabean\u9700\u8981\u653e\u5728\u5e94\u7528\u76ee\u5f55\u7684WEB-INF\u76ee\u5f55\u7684classes\u76ee\u5f55\u4e2d\uff0c\u8bbe\u7f6e\u670d\u52a1\u5668\u7684\u7f3a\u7701\u5e94\u7528\u5c06\u53ef\u4ee5\u5b9e\u73b0\u5728\u6d4f\u89c8\u5668\u4e0a\u65e0 \u9700\u8f93\u5165\u5e94\u7528\u540d\u3002<\/p>\n

85\u3001\u5728weblogic\u4e2d\u53d1\u5e03ejb\u9700\u6d89\u53ca\u5230\u54ea\u4e9b\u914d\u7f6e\u6587\u4ef6
\n\u4e0d\u540c\u7c7b\u578b\u7684EJB\u6d89\u53ca\u7684\u914d\u7f6e\u6587\u4ef6\u4e0d\u540c\uff0c\u90fd\u6d89\u53ca\u5230\u7684\u914d\u7f6e\u6587\u4ef6\u5305\u62ecejb-jar.xml,weblogic-ejb-jar.xmlCMP\u5b9e\u4f53Bean\u4e00\u822c\u8fd8\u9700\u8981weblogic-cmp-rdbms-jar.xml<\/p>\n

86\u3001\u5982\u4f55\u5728weblogic\u4e2d\u8fdb\u884cssl\u914d\u7f6e\u4e0e\u5ba2\u6237\u7aef\u7684\u8ba4\u8bc1\u914d\u7f6e\u6216\u8bf4\u8bf4j2ee(\u6807\u51c6)\u8fdb\u884cssl\u7684\u914d\u7f6e
\n\u7f3a \u7701\u5b89\u88c5\u4e2d\u4f7f\u7528DemoIdentity.jks\u548cDemoTrust.jks KeyStore\u5b9e\u73b0SSL\uff0c\u9700\u8981\u914d\u7f6e\u670d\u52a1\u5668\u4f7f\u7528Enable SSL\uff0c\u914d\u7f6e\u5176\u7aef\u53e3\uff0c\u5728\u4ea7\u54c1\u6a21\u5f0f\u4e0b\u9700\u8981\u4eceCA\u83b7\u53d6\u79c1\u6709\u5bc6\u94a5\u548c\u6570\u5b57\u8bc1\u4e66\uff0c\u521b\u5efaidentity\u548ctrust keystore\uff0c\u88c5\u8f7d\u83b7\u5f97\u7684\u5bc6\u94a5\u548c\u6570\u5b57\u8bc1\u4e66\u3002\u53ef\u4ee5\u914d\u7f6e\u6b64SSL\u8fde\u63a5\u662f\u5355\u5411\u8fd8\u662f\u53cc\u5411\u7684\u3002<\/p>\n

87\u3001\u5982\u4f55\u67e5\u770b\u5728weblogic\u4e2d\u5df2\u7ecf\u53d1\u5e03\u7684EJB?
\n\u53ef\u4ee5\u4f7f\u7528\u7ba1\u7406\u63a7\u5236\u53f0\uff0c\u5728\u5b83\u7684Deployment\u4e2d\u53ef\u4ee5\u67e5\u770b\u6240\u6709\u5df2\u53d1\u5e03\u7684EJB<\/p>\n

88\u3001CORBA\u662f\u4ec0\u4e48?\u7528\u9014\u662f\u4ec0\u4e48?
\nCORBA \u6807\u51c6\u662f\u516c\u5171\u5bf9\u8c61\u8bf7\u6c42\u4ee3\u7406\u7ed3\u6784(Common Object Request Broker Architecture)\uff0c\u7531\u5bf9\u8c61\u7ba1\u7406\u7ec4\u7ec7 (Object Management Group\uff0c\u7f29\u5199\u4e3a OMG)\u6807\u51c6\u5316\u3002\u5b83\u7684\u7ec4\u6210\u662f\u63a5\u53e3\u5b9a\u4e49\u8bed\u8a00(IDL), \u8bed\u8a00\u7ed1\u5b9a(binding:\u4e5f\u8bd1\u4e3a\u8054\u7f16)\u548c\u5141\u8bb8\u5e94\u7528\u7a0b\u5e8f\u95f4\u4e92\u64cd\u4f5c\u7684\u534f\u8bae\u3002 \u5176\u76ee\u7684\u4e3a\uff1a\u7528\u4e0d\u540c\u7684\u7a0b\u5e8f\u8bbe\u8ba1\u8bed\u8a00\u4e66\u5199\u5728\u4e0d\u540c\u7684\u8fdb\u7a0b\u4e2d\u8fd0\u884c\uff0c\u4e3a\u4e0d\u540c\u7684\u64cd\u4f5c\u7cfb\u7edf\u5f00\u53d1\u3002<\/p>\n

89\u3001\u8bf4\u8bf4\u4f60\u6240\u719f\u6089\u6216\u542c\u8bf4\u8fc7\u7684j2ee\u4e2d\u7684\u51e0\u79cd\u5e38\u7528\u6a21\u5f0f?\u53ca\u5bf9\u8bbe\u8ba1\u6a21\u5f0f\u7684\u4e00\u4e9b\u770b\u6cd5
\nSession Facade Pattern\uff1a\u4f7f\u7528SessionBean\u8bbf\u95eeEntityBean
\nMessage Facade Pattern\uff1a\u5b9e\u73b0\u5f02\u6b65\u8c03\u7528
\nEJB Command Pattern\uff1a\u4f7f\u7528Command JavaBeans\u53d6\u4ee3SessionBean\uff0c\u5b9e\u73b0\u8f7b\u91cf\u7ea7\u8bbf\u95ee
\nData Transfer Object Factory\uff1a\u901a\u8fc7DTO Factory\u7b80\u5316EntityBean\u6570\u636e\u63d0\u4f9b\u7279\u6027
\nGeneric Attribute Access\uff1a\u901a\u8fc7AttibuteAccess\u63a5\u53e3\u7b80\u5316EntityBean\u6570\u636e\u63d0\u4f9b\u7279\u6027
\nBusiness Interface\uff1a\u901a\u8fc7\u8fdc\u7a0b\uff08\u672c\u5730\uff09\u63a5\u53e3\u548cBean\u7c7b\u5b9e\u73b0\u76f8\u540c\u63a5\u53e3\u89c4\u8303\u4e1a\u52a1\u903b\u8f91\u4e00\u81f4\u6027
\n\uff25\uff2a\uff22\u67b6\u6784\u7684\u8bbe\u8ba1\u597d\u574f\u5c06\u76f4\u63a5\u5f71\u54cd\u7cfb\u7edf\u7684\u6027\u80fd\u3001\u53ef\u6269\u5c55\u6027\u3001\u53ef\u7ef4\u62a4\u6027\u3001\u7ec4\u4ef6\u53ef\u91cd\u7528\u6027\u53ca\u5f00\u53d1\u6548\u7387\u3002\u9879\u76ee\u8d8a\u590d\u6742\uff0c\u9879\u76ee\u961f\u4f0d\u8d8a\u5e9e\u5927\u5219\u8d8a\u80fd\u4f53\u73b0\u826f\u597d\u8bbe\u8ba1\u7684\u91cd\u8981\u6027\u3002<\/p>\n

90\u3001\u8bf4\u8bf4\u5728weblogic\u4e2d\u5f00\u53d1\u6d88\u606fBean\u65f6\u7684persistent\u4e0enon-persisten\u7684\u5dee\u522b
\npersistent\u65b9\u5f0f\u7684MDB\u53ef\u4ee5\u4fdd\u8bc1\u6d88\u606f\u4f20\u9012\u7684\u53ef\u9760\u6027,\u4e5f\u5c31\u662f\u5982\u679cEJB\u5bb9\u5668\u51fa\u73b0\u95ee\u9898\u800cJMS\u670d\u52a1\u5668\u4f9d\u7136\u4f1a\u5c06\u6d88\u606f\u5728\u6b64MDB\u53ef\u7528\u7684\u65f6\u5019\u53d1\u9001\u8fc7\u6765\uff0c\u800cnon\uff0dpersistent\u65b9\u5f0f\u7684\u6d88\u606f\u5c06\u88ab\u4e22\u5f03\u3002<\/p>\n

\u65e2\u7136\u6ca1\u6709\u6807\u51c6\u7b54\u6848\uff0c\u5c31\u6839\u636e\u81ea\u5df1\u7684\u6240\u4e86\u89e3\u7684\uff0c\u8865\u5145\u4fee\u6b63\u4e00\u4e0b\u597d\u4e86<\/p>\n

91\u3001Servlet\u6267\u884c\u65f6\u4e00\u822c\u5b9e\u73b0\u54ea\u51e0\u4e2a\u65b9\u6cd5\uff1f
\npublic void init(ServletConfig config)
\npublic ServletConfig getServletConfig()
\npublic String getServletInfo()
\npublic void service(ServletRequest request,ServletResponse response)
\npublic void destroy()<\/p>\n

init ()\u65b9\u6cd5\u5728servlet\u7684\u751f\u547d\u5468\u671f\u4e2d\u4ec5\u6267\u884c\u4e00\u6b21\uff0c\u5728\u670d\u52a1\u5668\u88c5\u8f7dservlet\u65f6\u6267\u884c\u3002\u7f3a\u7701\u7684init()\u65b9\u6cd5\u901a\u5e38\u662f\u7b26\u5408\u8981\u6c42\u7684\uff0c\u4e0d\u8fc7\u4e5f\u53ef\u4ee5\u6839\u636e\u9700\u8981\u8fdb\u884c override\uff0c\u6bd4\u5982\u7ba1\u7406\u670d\u52a1\u5668\u7aef\u8d44\u6e90\uff0c\u4e00\u6b21\u6027\u88c5\u5165GIF\u56fe\u50cf\uff0c\u521d\u59cb\u5316\u6570\u636e\u5e93\u8fde\u63a5\u7b49\uff0c\u7f3a\u7701\u7684inti()\u65b9\u6cd5\u8bbe\u7f6e\u4e86servlet\u7684\u521d\u59cb\u5316\u53c2\u6570\uff0c\u5e76\u7528\u5b83 \u7684ServeltConfig\u5bf9\u8c61\u53c2\u6570\u6765\u542f\u52a8\u914d\u7f6e\uff0c\u6240\u4ee5\u8986\u76d6init()\u65b9\u6cd5\u65f6\uff0c\u5e94\u8c03\u7528super.init()\u4ee5\u786e\u4fdd\u4ecd\u7136\u6267\u884c\u8fd9\u4e9b\u4efb\u52a1\u3002<\/p>\n

service ()\u65b9\u6cd5\u662fservlet\u7684\u6838\u5fc3\uff0c\u5728\u8c03\u7528service()\u65b9\u6cd5\u4e4b\u524d\uff0c\u5e94\u786e\u4fdd\u5df2\u5b8c\u6210init()\u65b9\u6cd5\u3002\u5bf9\u4e8eHttpServlet\uff0c\u6bcf\u5f53\u5ba2\u6237\u8bf7\u6c42\u4e00\u4e2a HttpServlet\u5bf9\u8c61\uff0c\u8be5\u5bf9\u8c61\u7684service()\u65b9\u6cd5\u5c31\u8981\u88ab\u8c03\u7528\uff0cHttpServlet\u7f3a\u7701\u7684service()\u65b9\u6cd5\u7684\u670d\u52a1\u529f\u80fd\u5c31\u662f\u8c03\u7528\u4e0e HTTP\u8bf7\u6c42\u7684\u65b9\u6cd5\u76f8\u5e94\u7684do\u529f\u80fd\uff0cdoPost()\u548cdoGet()\uff0c\u6240\u4ee5\u5bf9\u4e8eHttpServlet\uff0c\u4e00\u822c\u90fd\u662f\u91cd\u5199doPost()\u548cdoGet() \u65b9\u6cd5\u3002<\/p>\n

destroy()\u65b9\u6cd5\u5728servlet\u7684\u751f\u547d\u5468\u671f\u4e2d\u4e5f\u4ec5\u6267\u884c\u4e00\u6b21\uff0c\u5373\u5728\u670d\u52a1\u5668\u505c\u6b62\u5378\u8f7dservlet\u65f6\u6267\u884c\uff0c\u628aservlet\u4f5c\u4e3a \u670d\u52a1\u5668\u8fdb\u7a0b\u7684\u4e00\u90e8\u5206\u5173\u95ed\u3002\u7f3a\u7701\u7684destroy()\u65b9\u6cd5\u901a\u5e38\u662f\u7b26\u5408\u8981\u6c42\u7684\uff0c\u4f46\u4e5f\u53ef\u4ee5override\uff0c\u6bd4\u5982\u5728\u5378\u8f7dservlet\u65f6\u5c06\u7edf\u8ba1\u6570\u5b57\u4fdd\u5b58\u5728\u6587\u4ef6 \u4e2d\uff0c\u6216\u662f\u5173\u95ed\u6570\u636e\u5e93\u8fde\u63a5\u3002<\/p>\n

getServletConfig()\u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2aservletConfig\u5bf9\u8c61\uff0c\u8be5\u5bf9\u8c61\u7528\u6765\u8fd4\u56de\u521d\u59cb\u5316\u53c2\u6570\u548cservletContext\u3002servletContext\u63a5\u53e3\u63d0\u4f9b\u6709\u5173servlet\u7684\u73af\u5883\u4fe1\u606f\u3002<\/p>\n

getServletInfo()\u65b9\u6cd5\u63d0\u4f9b\u6709\u5173servlet\u7684\u4fe1\u606f\uff0c\u5982\u4f5c\u8005\uff0c\u7248\u672c\uff0c\u7248\u6743\u3002<\/p>\n

92\u3001j2ee\u5e38\u7528\u7684\u8bbe\u8ba1\u6a21\u5f0f\uff1f\u8bf4\u660e\u5de5\u5382\u6a21\u5f0f\u3002
\nJava\u4e2d\u768423\u79cd\u8bbe\u8ba1\u6a21\u5f0f\uff1a
\nFactory\uff08\u5de5\u5382\u6a21\u5f0f\uff09\uff0c Builder\uff08\u5efa\u9020\u6a21\u5f0f\uff09\uff0c Factory Method\uff08\u5de5\u5382\u65b9\u6cd5\u6a21\u5f0f\uff09\uff0c
\nPrototype\uff08\u539f\u59cb\u6a21\u578b\u6a21\u5f0f\uff09\uff0cSingleton\uff08\u5355\u4f8b\u6a21\u5f0f\uff09\uff0c Facade\uff08\u95e8\u9762\u6a21\u5f0f\uff09\uff0c
\nAdapter\uff08\u9002\u914d\u5668\u6a21\u5f0f\uff09\uff0c Bridge\uff08\u6865\u6881\u6a21\u5f0f\uff09\uff0c Composite\uff08\u5408\u6210\u6a21\u5f0f\uff09\uff0c
\nDecorator\uff08\u88c5\u9970\u6a21\u5f0f\uff09\uff0c Flyweight\uff08\u4eab\u5143\u6a21\u5f0f\uff09\uff0c Proxy\uff08\u4ee3\u7406\u6a21\u5f0f\uff09\uff0c
\nCommand\uff08\u547d\u4ee4\u6a21\u5f0f\uff09\uff0c Interpreter\uff08\u89e3\u91ca\u5668\u6a21\u5f0f\uff09\uff0c Visitor\uff08\u8bbf\u95ee\u8005\u6a21\u5f0f\uff09\uff0c
\nIterator\uff08\u8fed\u4ee3\u5b50\u6a21\u5f0f\uff09\uff0c Mediator\uff08\u8c03\u505c\u8005\u6a21\u5f0f\uff09\uff0c Memento\uff08\u5907\u5fd8\u5f55\u6a21\u5f0f\uff09\uff0c
\nObserver\uff08\u89c2\u5bdf\u8005\u6a21\u5f0f\uff09\uff0c State\uff08\u72b6\u6001\u6a21\u5f0f\uff09\uff0c Strategy\uff08\u7b56\u7565\u6a21\u5f0f\uff09\uff0c
\nTemplate Method\uff08\u6a21\u677f\u65b9\u6cd5\u6a21\u5f0f\uff09\uff0c Chain Of Responsibleity\uff08\u8d23\u4efb\u94fe\u6a21\u5f0f\uff09
\n\u5de5 \u5382\u6a21\u5f0f\uff1a\u5de5\u5382\u6a21\u5f0f\u662f\u4e00\u79cd\u7ecf\u5e38\u88ab\u4f7f\u7528\u5230\u7684\u6a21\u5f0f\uff0c\u6839\u636e\u5de5\u5382\u6a21\u5f0f\u5b9e\u73b0\u7684\u7c7b\u53ef\u4ee5\u6839\u636e\u63d0\u4f9b\u7684\u6570\u636e\u751f\u6210\u4e00\u7ec4\u7c7b\u4e2d\u67d0\u4e00\u4e2a\u7c7b\u7684\u5b9e\u4f8b\uff0c\u901a\u5e38\u8fd9\u4e00\u7ec4\u7c7b\u6709\u4e00\u4e2a\u516c\u5171\u7684\u62bd\u8c61\u7236\u7c7b\u5e76\u4e14 \u5b9e\u73b0\u4e86\u76f8\u540c\u7684\u65b9\u6cd5\uff0c\u4f46\u662f\u8fd9\u4e9b\u65b9\u6cd5\u9488\u5bf9\u4e0d\u540c\u7684\u6570\u636e\u8fdb\u884c\u4e86\u4e0d\u540c\u7684\u64cd\u4f5c\u3002\u9996\u5148\u9700\u8981\u5b9a\u4e49\u4e00\u4e2a\u57fa\u7c7b\uff0c\u8be5\u7c7b\u7684\u5b50\u7c7b\u901a\u8fc7\u4e0d\u540c\u7684\u65b9\u6cd5\u5b9e\u73b0\u4e86\u57fa\u7c7b\u4e2d\u7684\u65b9\u6cd5\u3002\u7136\u540e\u9700\u8981\u5b9a\u4e49\u4e00\u4e2a \u5de5\u5382\u7c7b\uff0c\u5de5\u5382\u7c7b\u53ef\u4ee5\u6839\u636e\u6761\u4ef6\u751f\u6210\u4e0d\u540c\u7684\u5b50\u7c7b\u5b9e\u4f8b\u3002\u5f53\u5f97\u5230\u5b50\u7c7b\u7684\u5b9e\u4f8b\u540e\uff0c\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u8c03\u7528\u57fa\u7c7b\u4e2d\u7684\u65b9\u6cd5\u800c\u4e0d\u5fc5\u8003\u8651\u5230\u5e95\u8fd4\u56de\u7684\u662f\u54ea\u4e00\u4e2a\u5b50\u7c7b\u7684\u5b9e\u4f8b\u3002<\/p>\n

93\u3001EJB\u9700\u76f4\u63a5\u5b9e\u73b0\u5b83\u7684\u4e1a\u52a1\u63a5\u53e3\u6216Home\u63a5\u53e3\u5417\uff0c\u8bf7\u7b80\u8ff0\u7406\u7531\u3002
\n\u8fdc\u7a0b\u63a5\u53e3\u548cHome\u63a5\u53e3\u4e0d\u9700\u8981\u76f4\u63a5\u5b9e\u73b0\uff0c\u4ed6\u4eec\u7684\u5b9e\u73b0\u4ee3\u7801\u662f\u7531\u670d\u52a1\u5668\u4ea7\u751f\u7684\uff0c\u7a0b\u5e8f\u8fd0\u884c\u4e2d\u5bf9\u5e94\u5b9e\u73b0\u7c7b\u4f1a\u4f5c\u4e3a\u5bf9\u5e94\u63a5\u53e3\u7c7b\u578b\u7684\u5b9e\u4f8b\u88ab\u4f7f\u7528\u3002<\/p>\n

\u5176\u5b9e\u4e00\u76f4\u90fd\u4e0d\u662f\u5f88\u660e\u767dEJB\u7684remote\u63a5\u53e3\uff0chome\u63a5\u53e3\uff0cBean\u7c7b\u7a76\u7adf\u662f\u5982\u4f55\u4f7f\u7528\u7684\uff0c\u6216\u8bb8\u5e94\u8be5\u8fdb\u4e00\u6b65\u4e86\u89e3EJB\u7684\u539f\u7406\u5427\uff0c\u67e5\u5230\u4e86\u4e00\u4e2a\u539f\u521b\u6587\u7ae0\uff0c\u90a3\u5c31\u8bf4\u8bf4EJB\u8c03\u7528\u7684\u539f\u7406\u5427\u3002\u5176\u5b9e\u5728\u8fd9\u4e2a\u95ee\u9898\u4e0a\uff0c\u6700\u9700\u8981\u7406\u89e3\u7684\u662fRMI\u673a\u5236\u539f\u7406\u3002<\/p>\n

\u4e00\u4e2a\u8fdc\u7a0b\u5bf9\u8c61\u81f3\u5c11\u8981\u5305\u62ec4\u4e2aclass\u6587\u4ef6\uff1a\u8fdc\u7a0b\u5bf9\u8c61\u3001\u8fdc\u7a0b\u5bf9\u8c61\u63a5\u53e3\u3001\u5b9e\u73b0\u8fdc\u7a0b\u63a5\u53e3\u7684\u5bf9\u8c61\u7684stub\u3001\u5bf9\u8c61\u7684skeleton\u3002<\/p>\n

\u800c\u5728EJB\u4e2d\u5219\u81f3\u5c11\u8981\u5305\u62ec10\u4e2aclass:
\nBean\u7c7b\uff0c\u7279\u5b9aApp Server\u7684Bean\u5b9e\u73b0\u7c7b
\nBean\u7684remote\u63a5\u53e3\uff0c\u7279\u5b9aApp Server\u7684remote\u63a5\u53e3\u5b9e\u73b0\u7c7b\uff0c\u7279\u5b9aApp Server\u7684remote\u63a5\u53e3\u7684\u5b9e\u73b0\u7c7b\u7684stub\u7c7b\u548cskeleton\u7c7b\u3002
\nBean\u7684home\u63a5\u53e3\uff0c\u7279\u5b9aApp Server\u7684home\u63a5\u53e3\u5b9e\u73b0\u7c7b\uff0c\u7279\u5b9aApp Server\u7684home\u63a5\u53e3\u7684\u5b9e\u73b0\u7c7b\u7684stub\u7c7b\u548cskeleton\u7c7b\u3002<\/p>\n

\u548cRMI\u4e0d\u540c\u7684\u662f\uff0cEJB\u4e2d\u8fd910\u4e2aclass\u771f\u6b63\u9700\u8981\u7528\u6237\u5199\u7684\u53ea\u67093\u4e2a\uff0cBean\u7c7b\uff0cremote\u63a5\u53e3\uff0chome\u63a5\u53e3\uff0c\u5176\u5b83\u76847\u4e2a\u7a76\u7adf\u600e\u4e48\u751f\u6210\uff0c\u88ab\u6253\u5305\u5728\u54ea\u91cc\uff0c\u662f\u5426\u9700\u8981\u66f4\u591a\u7684\u7c7b\u6587\u4ef6\uff0c\u5426\u6839\u636e\u4e0d\u540c\u7684App Server\u8868\u73b0\u51fa\u8f83\u5927\u7684\u5dee\u5f02\u3002<\/p>\n

Weblogic\uff1a
\nhome\u63a5\u53e3\u548cremote\u63a5\u53e3\u7684weblogic\u7684\u5b9e\u73b0\u7c7b\u7684stub\u7c7b\u548cskeleton\u7c7b\u662f\u5728EJB\u88ab\u90e8\u7f72\u5230weblogic\u7684\u65f6\u5019\uff0c\u7531weblogic\u52a8\u6001\u751f\u6210stub\u7c7b\u548cskeleton\u7c7b\u7684\u5b57\u8282\u7801\uff0c\u6240\u4ee5\u770b\u4e0d\u5230\u8fd94\u4e2a\u7c7b\u6587\u4ef6\u3002<\/p>\n

\u5bf9 \u4e8e\u4e00\u6b21\u5ba2\u6237\u7aef\u8fdc\u7a0b\u8c03\u7528EJB\uff0c\u8981\u7ecf\u8fc7\u4e24\u4e2a\u8fdc\u7a0b\u5bf9\u8c61\u7684\u591a\u6b21RMI\u5faa\u73af\u3002\u9996\u5148\u662f\u901a\u8fc7JNDI\u67e5\u627eHome\u63a5\u53e3\uff0c\u83b7\u5f97Home\u63a5\u53e3\u7684\u5b9e\u73b0\u7c7b\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u5176\u5b9e\u76f8\u5f53\u590d \u6742\uff0c\u9996\u5148\u662f\u627e\u5230Home\u63a5\u53e3\u7684Weblogic\u5b9e\u73b0\u7c7b\uff0c\u7136\u540e\u521b\u5efa\u4e00\u4e2aHome\u63a5\u53e3\u7684Weblogic\u5b9e\u73b0\u7c7b\u7684stub\u7c7b\u7684\u5bf9\u8c61\u5b9e\u4f8b\uff0c\u5c06\u5b83\u5e8f\u5217\u5316\u4f20\u9001\u7ed9\u5ba2\u6237 \u7aef\uff08\u6ce8\u610fstub\u7c7b\u7684\u5b9e\u4f8b\u662f\u5728\u7b2c1\u6b21RMI\u5faa\u73af\u4e2d\uff0c\u7531\u670d\u52a1\u5668\u52a8\u6001\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef\u7684\uff0c\u56e0\u6b64\u4e0d\u9700\u8981\u5ba2\u6237\u7aef\u4fdd\u5b58Home\u63a5\u53e3\u7684Weblogic\u5b9e\u73b0\u7c7b\u7684stub \u7c7b\uff09\uff0c\u6700\u540e\u5ba2\u6237\u7aef\u83b7\u5f97\u8be5stub\u7c7b\u7684\u5bf9\u8c61\u5b9e\u4f8b\uff08\u666e\u901a\u7684RMI\u9700\u8981\u5728\u5ba2\u6237\u7aef\u4fdd\u5b58stub\u7c7b\uff0c\u800cEJB\u4e0d\u9700\u8981\uff0c\u56e0\u4e3a\u670d\u52a1\u5668\u4f1a\u628astub\u7c7b\u7684\u5bf9\u8c61\u5b9e\u4f8b\u53d1\u9001\u7ed9\u5ba2\u6237 \u7aef\uff09\u3002<\/p>\n

\u5ba2\u6237\u7aef\u62ff\u5230\u670d\u52a1\u5668\u7ed9\u5b83\u7684Home\u63a5\u53e3\u7684Weblogic\u5b9e\u73b0\u7c7b\u7684stub\u7c7b\u5bf9\u8c61\u5b9e\u4f8b\u4ee5\u540e\uff0c\u8c03\u7528stub\u7c7b\u7684create\u65b9\u6cd5\uff0c (\u5728\u4ee3\u7801\u4e0a\u5c31\u662fhome.create()\uff0c\u4f46\u662f\u540e\u53f0\u8981\u505a\u5f88\u591a\u4e8b\u60c5),\u4e8e\u662f\u7ecf\u8fc7\u7b2c2\u6b21RMI\u5faa\u73af\uff0c\u5728\u670d\u52a1\u5668\u7aef\uff0cHome\u63a5\u53e3\u7684Weblogic\u5b9e\u73b0\u7c7b\u7684 skeleton\u7c7b\u6536\u5230stub\u7c7b\u7684\u8c03\u7528\u4fe1\u606f\u540e\uff0c\u7531\u5b83\u518d\u53bb\u8c03\u7528Home\u63a5\u53e3\u7684Weblogic\u5b9e\u73b0\u7c7b\u7684create\u65b9\u6cd5\u3002<\/p>\n

\u5728\u670d\u52a1\u7aef\uff0cHome \u63a5\u53e3\u7684Weblogic\u5b9e\u73b0\u7c7b\u7684create\u65b9\u6cd5\u518d\u53bb\u8c03\u7528Bean\u7c7b\u7684Weblogic\u5b9e\u73b0\u7c7b\u7684ejbCreate\u65b9\u6cd5\uff0c\u5728\u670d\u52a1\u7aef\u521b\u5efa\u6216\u8005\u5206\u914d\u4e00\u4e2aEJB \u5b9e\u4f8b\uff0c\u7136\u540e\u5c06\u8fd9\u4e2aEJB\u5b9e\u4f8b\u7684\u8fdc\u7a0b\u63a5\u53e3\u7684Weblogic\u5b9e\u73b0\u7c7b\u7684stub\u7c7b\u5bf9\u8c61\u5b9e\u4f8b\u5e8f\u5217\u5316\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef\u3002<\/p>\n

\u5ba2\u6237\u7aef\u6536\u5230remote\u63a5 \u53e3\u7684Weblogic\u5b9e\u73b0\u7c7b\u7684stub\u7c7b\u7684\u5bf9\u8c61\u5b9e\u4f8b\uff0c\u5bf9\u8be5\u5bf9\u8c61\u5b9e\u4f8b\u7684\u65b9\u6cd5\u8c03\u7528\uff08\u5728\u5ba2\u6237\u7aef\u4ee3\u7801\u4e2d\u5b9e\u9645\u4e0a\u5c31\u662f\u5bf9remote\u63a5\u53e3\u7684\u8c03\u7528\uff09\uff0c\u5c06\u4f20\u9001\u7ed9\u670d\u52a1\u5668\u7aef remote\u63a5\u53e3\u7684Weblogic\u5b9e\u73b0\u7c7b\u7684skeleton\u7c7b\u5bf9\u8c61\uff0c\u800cskeleton\u7c7b\u5bf9\u8c61\u518d\u8c03\u7528\u76f8\u5e94\u7684remote\u63a5\u53e3\u7684Weblogic\u5b9e\u73b0\u7c7b\uff0c \u7136\u540eremote\u63a5\u53e3\u7684Weblogic\u5b9e\u73b0\u7c7b\u518d\u53bb\u8c03\u7528Bean\u7c7b\u7684Weblogic\u5b9e\u73b0\u7c7b\uff0c\u5982\u6b64\u5c31\u5b8c\u6210\u4e00\u6b21EJB\u5bf9\u8c61\u7684\u8fdc\u7a0b\u8c03\u7528\u3002<\/p>\n

\u5148\u62ff\u666e\u901aRMI\u6765\u8bf4\uff0c\u67094\u4e2aclass\uff0c\u5206\u522b\u662f\u8fdc\u7a0b\u5bf9\u8c61\uff0c\u5bf9\u8c61\u7684\u63a5\u53e3\uff0c\u5bf9\u8c61\u7684stub\u7c7b\u548cskeleton\u7c7b\u3002\u800c\u5bf9\u8c61\u672c\u8eab\u548c\u5bf9\u8c61\u7684stub\u7c7b\u540c\u65f6\u90fd\u5b9e\u73b0\u4e86\u63a5\u53e3\u7c7b\u3002\u800c\u6211\u4eec\u5728\u5ba2\u6237\u7aef\u4ee3\u7801\u8c03\u7528\u8fdc\u7a0b\u5bf9\u8c61\u7684\u65f6\u5019\uff0c\u867d\u7136\u5728\u4ee3\u7801\u4e2d\u64cd\u7eb5\u63a5\u53e3\uff0c\u5b9e\u8d28\u4e0a\u662f\u5728\u64cd\u7eb5stub\u7c7b\uff0c\u4f8b\u5982\uff1a
\n\u63a5\u53e3\u7c7b\uff1aHello
\n\u8fdc\u7a0b\u5bf9\u8c61\uff1aHello_Server
\nstub\u7c7b\uff1aHello_Stub
\nskeleton\u7c7b\uff1aHello_Skeleton<\/p>\n

\u5ba2\u6237\u7aef\u4ee3\u7801\u8981\u8fd9\u6837\u5199\uff1a
\nHello h = new Hello_Stub();
\nh.getString();<\/p>\n

\u6211\u4eec\u4e0d\u4f1a\u8fd9\u4e9b\u5199\uff1a
\nHello_Stub h = new Hello_Stub();
\nh.getString();<\/p>\n

\u56e0 \u4e3a\u4f7f\u7528\u63a5\u53e3\u9002\u7528\u6027\u66f4\u5e7f\uff0c\u5c31\u7b97\u66f4\u6362\u4e86\u63a5\u53e3\u5b9e\u73b0\u7c7b\uff0c\u4e5f\u4e0d\u9700\u8981\u66f4\u6539\u4ee3\u7801\u3002\u56e0\u6b64\u5ba2\u6237\u7aef\u9700\u8981Hello.class\u548cHello_Stub.class\u8fd9\u4e24\u4e2a\u6587\u4ef6\u3002 \u4f46\u662f\u5bf9\u4e8eEJB\u6765\u8bf4\uff0c\u5c31\u4e0d\u9700\u8981Hello_Stub.class\uff0c\u56e0\u4e3a\u670d\u52a1\u5668\u4f1a\u53d1\u9001\u7ed9\u5b83\uff0c\u4f46\u662fHello.class\u6587\u4ef6\u5ba2\u6237\u7aef\u662f\u7701\u4e0d\u4e86\u7684\uff0c\u5fc5\u987b\u6709\u3002\u8868\u9762 \u4e0a\u6211\u4eec\u7684\u5ba2\u6237\u7aef\u4ee3\u7801\u5728\u64cd\u7eb5Hello\uff0c\u4f46\u522b\u5fd8\u8bb0\u4e86Hello\u53ea\u662f\u4e00\u4e2a\u63a5\u53e3\uff0c\u62bd\u8c61\u7684\uff0c\u5b9e\u8d28\u4e0a\u662f\u5728\u64cd\u7eb5Hello_Stub\u3002<\/p>\n

\u62ffWeblogic\u4e0a\u7684EJB\u4e3e\u4f8b\u5b50\uff0c10\u4e2aclass\u5206\u522b\u662f\uff1a
\nBean\u7c7b\uff1aHelloBean \uff08\u7528\u6237\u7f16\u5199\uff09
\nBean\u7c7b\u7684Weblogic\u5b9e\u73b0\u7c7b\uff1aHelloBean_Impl \uff08EJBC\u751f\u6210\uff09<\/p>\n

Home\u63a5\u53e3\uff1aHelloHome \uff08\u7528\u6237\u7f16\u5199\uff09
\nHome\u63a5\u53e3\u7684Weblogic\u5b9e\u73b0\u7c7b HelloBean_HomeImpl\uff08EJBC\u751f\u6210\uff09
\nHome\u63a5\u53e3\u7684Weblogic\u5b9e\u73b0\u7c7b\u7684stub\u7c7b HelloBean_HomeImpl_WLStub\uff08\u90e8\u7f72\u7684\u65f6\u5019\u52a8\u6001\u751f\u6210\u5b57\u8282\u7801\uff09
\nHome\u63a5\u53e3\u7684Weblogic\u5b9e\u73b0\u7c7b\u7684skeleton\u7c7b HelloBean_HomeImpl_WLSkeleton\uff08\u90e8\u7f72\u7684\u65f6\u5019\u52a8\u6001\u751f\u6210\u5b57\u8282\u7801\uff09<\/p>\n

Remote\u63a5\u53e3\uff1a Hello \uff08\u7528\u6237\u7f16\u5199\uff09
\nRemote\u63a5\u53e3\u7684Weblogic\u5b9e\u73b0\u7c7b HelloBean_EOImpl\uff08EJBC\u751f\u6210\uff09
\nRemote\u63a5\u53e3\u7684Weblogic\u5b9e\u73b0\u7c7b\u7684stub\u7c7b HelloBean_EOImpl_WLStub\uff08\u90e8\u7f72\u7684\u65f6\u5019\u52a8\u6001\u751f\u6210\u5b57\u8282\u7801\uff09
\nRemote\u63a5\u53e3\u7684Weblogic\u5b9e\u73b0\u7c7b\u7684skeleton\u7c7b HelloBean_EOImpl_WLSkeleton\uff08\u90e8\u7f72\u7684\u65f6\u5019\u52a8\u6001\u751f\u6210\u5b57\u8282\u7801\uff09<\/p>\n

\u5ba2\u6237\u7aef\u53ea\u9700\u8981Hello.class\u548cHelloHome.class\u8fd9\u4e24\u4e2a\u6587\u4ef6\u3002<\/p>\n

HelloHome home = (Home) PortableRemoteObject.narrow(ctx.lookup(“Hello”), HelloHome.class);<\/p>\n

\u8fd9\u4e00\u884c\u4ee3\u7801\u662f\u4eceJNDI\u83b7\u5f97Home\u63a5\u53e3\uff0c\u4f46\u662f\u8bf7\u8bb0\u4f4f\uff01\u63a5\u53e3\u662f\u62bd\u8c61\u7684\uff0c\u90a3\u4e48home\u8fd9\u4e2a\u5bf9\u8c61\u5230\u5e95\u662f\u4ec0\u4e48\u7c7b\u7684\u5bf9\u8c61\u5b9e\u4f8b\u5462\uff1f\u5f88\u7b80\u5355\uff0c\u7528toString()\u8f93\u51fa\u770b\u4e00\u4e0b\u5c31\u660e\u767d\u4e86\uff0c\u4e0b\u9762\u4e00\u884c\u662f\u8f93\u51fa\u7ed3\u679c\uff1a
\nHelloBean_HomeImpl_WLStub@18c458
\n\u8fd9\u8868\u660ehome\u8fd9\u4e2a\u901a\u8fc7\u4ece\u670d\u52a1\u5668\u7684JNDI\u6811\u4e0a\u67e5\u627e\u83b7\u5f97\u7684\u5bf9\u8c61\u5b9e\u9645\u4e0a\u662fHelloBean_HomeImpl_WLStub\u7c7b\u7684\u4e00\u4e2a\u5b9e\u4f8b\u3002
\n\u63a5\u4e0b\u6765\u5ba2\u6237\u7aef\u4ee3\u7801\uff1a<\/p>\n

Hello h = home.create()<\/p>\n

\u540c\u6837Hello\u53ea\u662f\u4e00\u4e2a\u62bd\u8c61\u7684\u63a5\u53e3\uff0c\u90a3\u4e48h\u5bf9\u8c61\u662f\u4ec0\u4e48\u4e1c\u897f\u5462\uff1f\u6253\u5370\u4e00\u4e0b\uff1a
\nHelloBean_EOImpl_WLStub@8fa0d1
\n\u539f\u6765\u662fHelloBean_EOImpl_WLStub\u7684\u4e00\u4e2a\u5bf9\u8c61\u5b9e\u4f8b\u3002<\/p>\n

\u7528\u8fd9\u4e2a\u4f8b\u5b50\u6765\u7b80\u8ff0\u4e00\u904dEJB\u8c03\u7528\u8fc7\u7a0b\uff1a<\/p>\n

\u9996\u5148\u5ba2\u6237\u7aefJNDI\u67e5\u8be2\uff0c\u670d\u52a1\u7aefJNDI\u6811\u4e0aHello\u8fd9\u4e2a\u540d\u5b57\u5b9e\u9645\u4e0a\u7ed1\u5b9a\u7684\u5bf9\u8c61\u662fHelloBean_HomeImpl_WLStub\uff0c\u6240\u4ee5\u670d\u52a1\u7aef\u5c06\u521b\u5efaHelloBean_HomeImpl_WLStub\u7684\u4e00\u4e2a\u5bf9\u8c61\u5b9e\u4f8b\uff0c\u5e8f\u5217\u5316\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u3002<\/p>\n

\u4e8e \u662f\u5ba2\u6237\u7aef\u5f97\u5230home\u5bf9\u8c61\uff0c\u8868\u9762\u4e0a\u662f\u5f97\u5230HelloHome\u63a5\u53e3\u7684\u5b9e\u4f8b\uff0c\u5b9e\u9645\u4e0a\u662f\u8fdb\u884c\u4e86\u4e00\u6b21\u8fdc\u7a0b\u8c03\u7528\u5f97\u5230\u4e86 HelloBean_HomeImpl_WLStub\u7c7b\u7684\u5bf9\u8c61\u5b9e\u4f8b\uff0c\u522b\u5fd8\u8bb0\u4e86HelloBean_HomeImpl_WLStub\u4e5f\u5b9e\u73b0\u4e86 HelloHome\u63a5\u53e3\u3002<\/p>\n

\u7136\u540ehome.create()\u5b9e\u8d28\u4e0a\u5c31\u662f HelloBean_HomeImpl_WLStub.create()\uff0c\u8be5\u65b9\u6cd5\u5c06\u53d1\u9001\u4fe1\u606f\u7ed9 HelloBean_HomeImpl_WLSkeleton\uff0c\u800cHelloBean_HomeImpl_WLSkeleton\u63a5\u53d7\u5230\u4fe1\u606f\u540e\uff0c\u518d\u53bb\u8c03\u7528 HelloBean_HomeImpl\u7684create\u65b9\u6cd5\uff0c\u81f3\u6b64\u5b8c\u6210\u7b2c1\u6b21\u5b8c\u6574\u7684RMI\u5faa\u73af\u3002<\/p>\n

\u6ce8\u610f\u5728\u8fd9\u6b21RMI\u5faa\u73af\u8fc7\u7a0b\u4e2d\uff0c\u8fdc\u7a0b\u5bf9\u8c61 \u662fHelloBean_HomeImpl\uff0c\u8fdc\u7a0b\u5bf9\u8c61\u7684\u63a5\u53e3\u662fHelloHome\uff0c\u5bf9\u8c61\u7684stub\u662fHelloBean_HomeImpl_WLStub\uff0c \u5bf9\u8c61\u7684skeleton\u662fHelloBean_HomeImpl_WLSkeleton\u3002<\/p>\n

\u7136\u540eHelloBean_HomeImpl \u518d\u53bb\u8c03\u7528HelloBean_Impl\u7684ejbCreate\u65b9\u6cd5\uff0c\u800cHelloBean_Impl\u7684ejbCreate\u65b9\u6cd5\u5c06\u8d1f\u8d23\u521b\u5efa\u6216\u8005\u5206\u914d\u4e00\u4e2a Bean\u5b9e\u4f8b\uff0c\u5e76\u4e14\u521b\u5efa\u4e00\u4e2aHelloBean_EOImpl_WLStub\u7684\u5bf9\u8c61\u5b9e\u4f8b\u3002<\/p>\n

\u8fd9\u4e00\u6b65\u6bd4\u8f83\u6709\u8da3\u7684\u662f\uff0c\u5728\u524d\u4e00\u6b65RMI\u5faa\u73af \u4e2d\uff0c\u8fdc\u7a0b\u5bf9\u8c61HelloBean_HomeImpl\u5728\u5ba2\u6237\u7aef\u6709\u4e00\u4e2a\u4ee3\u7406\u7c7bHelloBean_HomeImpl_WLStub\uff0c\u4f46\u5728\u8fd9\u4e00\u6b65\uff0c HelloBean_HomeImpl\u81ea\u5df1\u5374\u5145\u5f53\u4e86HelloBean_Impl\u7684\u4ee3\u7406\u7c7b\uff0c\u53ea\u4e0d\u8fc7HelloBean_HomeImpl\u4e0d\u5728\u5ba2\u6237\u7aef\uff0c\u800c\u662f \u5728\u670d\u52a1\u7aef\uff0c\u56e0\u6b64\u4e0d\u8fdb\u884cRMI\u3002<\/p>\n

\u7136\u540eHelloBean_EOImpl_WLStub\u7684\u5bf9\u8c61\u5b9e\u4f8b\u5e8f\u5217\u5316\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\uff0c\u8fd9\u4e00\u6b65\u4e5f\u5f88\u6709\u8da3\uff0c \u4e0a\u6b21RMI\u8fc7\u7a0b\uff0c\u4e3b\u89d2\u662fHelloBean_HomeImpl\u548c\u5b83\u7684\u4ee3\u7406\u7c7bHelloBean_HomeImpl_WLStub\uff0c\u4f46\u8fd9\u8fd9\u4e00\u6b21\u6362\u6210\u4e86 HelloBean_EOImpl\u548c\u5b83\u7684\u4ee3\u7406\u7c7bHelloBean_EOImpl_WLStub\u6765\u73a9\u4e86\u3002<\/p>\n

Hello h = home.create();h.helloWorld();<\/p>\n

\u5047\u8bbeHello\u63a5\u53e3\u6709\u4e00\u4e2ahelloWorld\u8fdc\u7a0b\u65b9\u6cd5\uff0c\u90a3\u4e48\u8868\u9762\u4e0a\u662f\u5728\u8c03\u7528Hello\u63a5\u53e3\u7684helloWorld\u65b9\u6cd5\uff0c\u5b9e\u9645\u4e0a\u662f\u5728\u8c03\u7528HelloBean_EOImpl_WLStub\u7684helloWorld\u65b9\u6cd5\u3002<\/p>\n

\u7136 \u540eHelloBean_EOImpl_WLStub\u7684helloWorld\u65b9\u6cd5\u5c06\u53d1\u9001\u4fe1\u606f\u7ed9\u670d\u52a1\u5668\u4e0a\u7684 HelloBean_EOImpl_WLSkeleton\uff0c\u800cHelloBean_EOImpl_WLSkeleton\u6536\u5230\u4fe1\u606f\u4ee5\u540e\uff0c\u518d\u53bb\u8c03\u7528 HelloBean_EOImpl\u7684helloWorld\u65b9\u6cd5\u3002\u81f3\u6b64\uff0c\u5b8c\u6210\u7b2c2\u6b21\u5b8c\u6574\u7684RMI\u5faa\u73af\u8fc7\u7a0b\u3002<\/p>\n

\u5728\u521a\u624d HelloBean_EOImpl\u662f\u4f5c\u4e3a\u8fdc\u7a0b\u5bf9\u8c61\u88ab\u8c03\u7528\u7684\uff0c\u5b83\u7684\u4ee3\u7406\u7c7b\u662fHelloBean_EOImpl_WLStub\uff0c\u4f46\u73b0\u5728 HelloBean_EOImpl\u8981\u4f5c\u4e3aHelloBean_Impl\u7684\u4ee3\u7406\u7c7b\u4e86\u3002\u73b0\u5728HelloBean_EOImpl\u53bb\u8c03\u7528 HelloBean_Impl\u7684helloWorld\u65b9\u6cd5\u3002\u6ce8\u610f\uff01HelloBean_Impl\u7ee7\u627f\u4e86HelloBean\uff0c\u800cHelloBean\u4e2d\u7684 helloWorld\u65b9\u6cd5\u662f\u6211\u4eec\u4eb2\u81ea\u7f16\u5199\u7684\u4ee3\u7801\uff0c\u73b0\u5728\u7ec8\u4e8e\u8c03\u7528\u5230\u4e86\u6211\u4eec\u7f16\u5199\u7684\u4ee3\u7801\u4e86\uff01<\/p>\n

\u81f3\u6b64\uff0c\u4e00\u6b21EJB\u8c03\u7528\u8fc7\u7a0b\u7ec8\u4e8e\u5b8c\u6210\u3002\u5728\u6574\u4e2a\u8fc7\u7a0b \u4e2d\uff0c\u670d\u52a1\u7aef\u4e3b\u8981\u8981\u8c03\u7528\u7684\u7c7b\u662fHelloBean_Impl\uff0c HelloBean_HomeImpl\uff0cHelloBean_HomeImpl_WLSkeleton\uff0cHelloBean_EOImpl\uff0c HelloBean_EOImpl_WLSkeleton\u3002\u5ba2\u6237\u7aef\u4e3b\u8981\u8c03\u7528\u7684\u7c7b\u662fHelloBean_HomeImpl_WLStub\uff0c HelloBean_EOImpl_WLStub\uff0c\u8fd9\u4e24\u4e2a\u7c7b\u5728\u5ba2\u6237\u7aef\u4ee3\u7801\u4e2d\u5e76\u4e0d\u4f1a\u76f4\u63a5\u51fa\u73b0\uff0c\u51fa\u73b0\u5728\u4ee3\u7801\u4e2d\u7684\u7c7b\u662f\u4ed6\u4eec\u7684\u63a5\u53e3HelloHome\u548c Hello\uff0c\u56e0\u6b64\u5ba2\u6237\u7aef\u9700\u8981\u8fd9\u4e24\u4e2a\u63a5\u53e3\u6587\u4ef6\uff0c\u800cStub\u662f\u670d\u52a1\u5668\u4f20\u9001\u7ed9\u4ed6\u4eec\u7684\u3002<\/p>\n

http:\/\/www.pbase.com\/nobo123\/image\/27229257<\/p>\n

http:\/\/forum.javaeye.com\/viewtopic.php?t=3832&postdays=0&postorder=asc&start=0<\/p>\n

94\u3001\u6392\u5e8f\u90fd\u6709\u54ea\u51e0\u79cd\u65b9\u6cd5\uff1f\u8bf7\u5217\u4e3e\u3002\u7528JAVA\u5b9e\u73b0\u4e00\u4e2a\u5feb\u901f\u6392\u5e8f\u3002
\n\u6392\u5e8f\u7684\u65b9\u6cd5\u6709\uff1a\u63d2\u5165\u6392\u5e8f\uff08\u76f4\u63a5\u63d2\u5165\u6392\u5e8f\u3001\u5e0c\u5c14\u6392\u5e8f\uff09\uff0c\u4ea4\u6362\u6392\u5e8f\uff08\u5192\u6ce1\u6392\u5e8f\u3001\u5feb\u901f\u6392\u5e8f\uff09\uff0c\u9009\u62e9\u6392\u5e8f\uff08\u76f4\u63a5\u9009\u62e9\u6392\u5e8f\u3001\u5806\u6392\u5e8f\uff09\uff0c\u5f52\u5e76\u6392\u5e8f\uff0c\u5206\u914d\u6392\u5e8f\uff08\u7bb1\u6392\u5e8f\u3001\u57fa\u6570\u6392\u5e8f\uff09
\n\u5feb\u901f\u6392\u5e8f\u7684\u4f2a\u4ee3\u7801\u3002
\n\/ \/\u4f7f\u7528\u5feb\u901f\u6392\u5e8f\u65b9\u6cd5\u5bf9a[ 0 :n- 1 ]\u6392\u5e8f
\n\u4ecea[ 0 :n- 1 ]\u4e2d\u9009\u62e9\u4e00\u4e2a\u5143\u7d20\u4f5c\u4e3am i d d l e\uff0c\u8be5\u5143\u7d20\u4e3a\u652f\u70b9
\n\u628a\u4f59\u4e0b\u7684\u5143\u7d20\u5206\u5272\u4e3a\u4e24\u6bb5left \u548cr i g h t\uff0c\u4f7f\u5f97l e f t\u4e2d\u7684\u5143\u7d20\u90fd\u5c0f\u4e8e\u7b49\u4e8e\u652f\u70b9\uff0c\u800cright \u4e2d\u7684\u5143\u7d20\u90fd\u5927\u4e8e\u7b49\u4e8e\u652f\u70b9
\n\u9012\u5f52\u5730\u4f7f\u7528\u5feb\u901f\u6392\u5e8f\u65b9\u6cd5\u5bf9left \u8fdb\u884c\u6392\u5e8f
\n\u9012\u5f52\u5730\u4f7f\u7528\u5feb\u901f\u6392\u5e8f\u65b9\u6cd5\u5bf9right \u8fdb\u884c\u6392\u5e8f
\n\u6240\u5f97\u7ed3\u679c\u4e3al e f t + m i d d l e + r i g h t<\/p>\n

95\u3001\u8bf7\u5bf9\u4ee5\u4e0b\u5728J2EE\u4e2d\u5e38\u7528\u7684\u540d\u8bcd\u8fdb\u884c\u89e3\u91ca(\u6216\u7b80\u5355\u63cf\u8ff0)
\nweb \u5bb9\u5668\uff1a\u7ed9\u5904\u4e8e\u5176\u4e2d\u7684\u5e94\u7528\u7a0b\u5e8f\u7ec4\u4ef6\uff08JSP\uff0cSERVLET\uff09\u63d0\u4f9b\u4e00\u4e2a\u73af\u5883\uff0c\u4f7fJSP,SERVLET\u76f4\u63a5\u548c\u5bb9\u5668\u4e2d\u7684\u73af\u5883\u53d8\u91cf\u63a5\u63a5\u53e3\u4e92\uff0c\u4e0d\u5fc5\u5173\u6ce8\u5176\u5b83\u7cfb\u7edf\u95ee \u9898\u3002\u4e3b\u8981\u6709WEB\u670d\u52a1\u5668\u6765\u5b9e\u73b0\u3002\u4f8b\u5982\uff1aTOMCAT,WEBLOGIC,WEBSPHERE\u7b49\u3002\u8be5\u5bb9\u5668\u63d0\u4f9b\u7684\u63a5\u53e3\u4e25\u683c\u9075\u5b88J2EE\u89c4\u8303\u4e2d\u7684WEB APPLICATION \u6807\u51c6\u3002\u6211\u4eec\u628a\u9075\u5b88\u4ee5\u4e0a\u6807\u51c6\u7684WEB\u670d\u52a1\u5668\u5c31\u53eb\u505aJ2EE\u4e2d\u7684WEB\u5bb9\u5668\u3002
\nWeb container\uff1a\u5b9e\u73b0J2EE\u4f53\u7cfb\u7ed3\u6784\u4e2dWeb\u7ec4\u4ef6\u534f\u8bae\u7684\u5bb9\u5668\u3002\u8fd9\u4e2a\u534f\u8bae\u89c4\u5b9a\u4e86\u4e00\u4e2aWeb\u7ec4\u4ef6\u8fd0\u884c\u65f6\u7684\u73af\u5883\uff0c\u5305\u62ec\u5b89\u5168\uff0c\u4e00\u81f4\u6027\uff0c\u751f\u547d\u5468\u671f\u7ba1\u7406\uff0c\u4e8b\u52a1\uff0c \u914d\u7f6e\u548c\u5176\u5b83\u7684\u670d\u52a1\u3002\u4e00\u4e2a\u63d0\u4f9b\u548cJSP\u548cJ2EE\u5e73\u53f0APIs\u754c\u9762\u76f8\u540c\u670d\u52a1\u7684\u5bb9\u5668\u3002\u4e00\u4e2aWeb container \u7531Web\u670d\u52a1\u5668\u6216\u8005J2EE\u670d\u52a1\u5668\u63d0\u4f9b\u3002
\nEJB\u5bb9\u5668\uff1aEnterprise java bean \u5bb9\u5668\u3002\u66f4\u5177\u6709\u884c\u4e1a\u9886\u57df\u7279\u8272\u3002\u4ed6\u63d0\u4f9b\u7ed9\u8fd0\u884c\u5728\u5176\u4e2d\u7684\u7ec4\u4ef6EJB\u5404\u79cd\u7ba1\u7406\u529f\u80fd\u3002\u53ea\u8981\u6ee1\u8db3J2EE\u89c4\u8303\u7684EJB\u653e\u5165\u8be5\u5bb9\u5668\uff0c\u9a6c\u4e0a\u5c31\u4f1a\u88ab\u5bb9\u5668\u8fdb\u884c\u9ad8\u6548\u7387\u7684\u7ba1\u7406\u3002\u5e76 \u4e14\u53ef\u4ee5\u901a\u8fc7\u73b0\u6210\u7684\u63a5\u53e3\u6765\u83b7\u5f97\u7cfb\u7edf\u7ea7\u522b\u7684\u670d\u52a1\u3002\u4f8b\u5982\u90ae\u4ef6\u670d\u52a1\u3001\u4e8b\u52a1\u7ba1\u7406\u3002
\n\u4e00\u4e2a\u5b9e\u73b0\u4e86J2EE\u4f53\u7cfb\u7ed3\u6784\u4e2dEJB\u7ec4\u4ef6\u89c4\u8303\u7684\u5bb9\u5668\u3002
\n\u8fd9\u4e2a\u89c4\u8303\u6307\u5b9a\u4e86\u4e00\u4e2aEnterprise bean\u7684\u8fd0\u884c\u65f6\u73af\u5883\uff0c\u5305\u62ec\u5b89\u5168\uff0c\u4e00\u81f4\u6027\uff0c\u751f\u547d\u5468\u671f\uff0c\u4e8b\u52a1\uff0c
\n\u914d\u7f6e\uff0c\u548c\u5176\u4ed6\u7684\u670d\u52a1\u3002
\nJNDI\uff1a\uff08Java Naming & Directory Interface\uff09JAVA\u547d\u540d\u76ee\u5f55\u670d\u52a1\u3002\u4e3b\u8981\u63d0\u4f9b\u7684\u529f\u80fd\u662f\uff1a\u63d0\u4f9b\u4e00\u4e2a\u76ee\u5f55\u7cfb\u7edf\uff0c\u8ba9\u5176\u5b83\u5404\u5730\u7684\u5e94\u7528\u7a0b\u5e8f\u5728\u5176\u4e0a\u9762\u7559\u4e0b\u81ea\u5df1\u7684\u7d22\u5f15\uff0c\u4ece\u800c\u6ee1\u8db3\u5feb\u901f\u67e5\u627e\u548c\u5b9a\u4f4d\u5206\u5e03\u5f0f\u5e94\u7528\u7a0b\u5e8f\u7684\u529f\u80fd\u3002
\nJMS\uff1a\uff08Java Message Service\uff09JAVA\u6d88\u606f\u670d\u52a1\u3002\u4e3b\u8981\u5b9e\u73b0\u5404\u4e2a\u5e94\u7528\u7a0b\u5e8f\u4e4b\u95f4\u7684\u901a\u8baf\u3002\u5305\u62ec\u70b9\u5bf9\u70b9\u548c\u5e7f\u64ad\u3002
\nJTA\uff1a\uff08Java Transaction API\uff09JAVA\u4e8b\u52a1\u670d\u52a1\u3002\u63d0\u4f9b\u5404\u79cd\u5206\u5e03\u5f0f\u4e8b\u52a1\u670d\u52a1\u3002\u5e94\u7528\u7a0b\u5e8f\u53ea\u9700\u8c03\u7528\u5176\u63d0\u4f9b\u7684\u63a5\u53e3\u5373\u53ef\u3002
\nJAF\uff1a\uff08Java Action FrameWork\uff09JAVA\u5b89\u5168\u8ba4\u8bc1\u6846\u67b6\u3002\u63d0\u4f9b\u4e00\u4e9b\u5b89\u5168\u63a7\u5236\u65b9\u9762\u7684\u6846\u67b6\u3002\u8ba9\u5f00\u53d1\u8005\u901a\u8fc7\u5404\u79cd\u90e8\u7f72\u548c\u81ea\u5b9a\u4e49\u5b9e\u73b0\u81ea\u5df1\u7684\u4e2a\u6027\u5b89\u5168\u63a7\u5236\u7b56\u7565\u3002
\nRMI\/IIOP: \uff08Remote Method Invocation \/internet\u5bf9\u8c61\u8bf7\u6c42\u4e2d\u4ecb\u534f\u8bae\uff09\u4ed6\u4eec\u4e3b\u8981\u7528\u4e8e\u901a\u8fc7\u8fdc\u7a0b\u8c03\u7528\u670d\u52a1\u3002\u4f8b\u5982\uff0c\u8fdc\u7a0b\u6709\u4e00\u53f0\u8ba1\u7b97\u673a\u4e0a\u8fd0\u884c\u4e00\u4e2a\u7a0b\u5e8f\uff0c\u5b83\u63d0\u4f9b\u80a1\u7968\u5206\u6790\u670d\u52a1\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u672c\u5730\u8ba1\u7b97\u673a \u4e0a\u5b9e\u73b0\u5bf9\u5176\u76f4\u63a5\u8c03\u7528\u3002\u5f53\u7136\u8fd9\u662f\u8981\u901a\u8fc7\u4e00\u5b9a\u7684\u89c4\u8303\u624d\u80fd\u5728\u5f02\u6784\u7684\u7cfb\u7edf\u4e4b\u95f4\u8fdb\u884c\u901a\u4fe1\u3002RMI\u662fJAVA\u7279\u6709\u7684\u3002
\nRMI-IIOP\u51fa\u73b0\u4ee5\u524d\uff0c\u53ea\u6709RMI\u548c CORBA\u4e24\u79cd\u9009\u62e9\u6765\u8fdb\u884c\u5206\u5e03\u5f0f\u7a0b\u5e8f\u8bbe\u8ba1\u3002RMI-IIOP\u7efc\u5408\u4e86RMI\u548cCORBA\u7684\u4f18\u70b9\uff0c\u514b\u670d\u4e86\u4ed6\u4eec\u7684\u7f3a\u70b9\uff0c\u4f7f\u5f97\u7a0b\u5e8f\u5458\u80fd\u66f4\u65b9\u4fbf\u7684\u7f16\u5199\u5206\u5e03\u5f0f\u7a0b\u5e8f\u8bbe \u8ba1\uff0c\u5b9e\u73b0\u5206\u5e03\u5f0f\u8ba1\u7b97\u3002\u9996\u5148\uff0cRMI-IIOP\u7efc\u5408\u4e86RMI\u7684\u7b80\u5355\u6027\u548cCORBA\u7684\u591a\u8bed\u8a00\u6027\uff08\u517c\u5bb9\u6027\uff09\uff0c\u5176\u6b21RMI-IIOP\u514b\u670d\u4e86RMI\u53ea\u80fd\u7528\u4e8eJava \u7684\u7f3a\u70b9\u548cCORBA\u7684\u590d\u6742\u6027\uff08\u53ef\u4ee5\u4e0d\u7528\u638c\u63e1IDL\uff09\u3002<\/p>\n

96\u3001JAVA\u8bed\u8a00\u5982\u4f55\u8fdb\u884c\u5f02\u5e38\u5904\u7406\uff0c\u5173\u952e\u5b57\uff1athrows,throw,try,catch,finally\u5206\u522b\u4ee3\u8868\u4ec0\u4e48\u610f\u4e49\uff1f\u5728try\u5757\u4e2d\u53ef\u4ee5\u629b\u51fa\u5f02\u5e38\u5417\uff1f<\/p>\n

Java \u901a\u8fc7\u9762\u5411\u5bf9\u8c61\u7684\u65b9\u6cd5\u8fdb\u884c\u5f02\u5e38\u5904\u7406\uff0c\u628a\u5404\u79cd\u4e0d\u540c\u7684\u5f02\u5e38\u8fdb\u884c\u5206\u7c7b\uff0c\u5e76\u63d0\u4f9b\u4e86\u826f\u597d\u7684\u63a5\u53e3\u3002\u5728Java\u4e2d\uff0c\u6bcf\u4e2a\u5f02\u5e38\u90fd\u662f\u4e00\u4e2a\u5bf9\u8c61\uff0c\u5b83\u662fThrowable\u7c7b\u6216\u5176\u5b83 \u5b50\u7c7b\u7684\u5b9e\u4f8b\u3002\u5f53\u4e00\u4e2a\u65b9\u6cd5\u51fa\u73b0\u5f02\u5e38\u540e\u4fbf\u629b\u51fa\u4e00\u4e2a\u5f02\u5e38\u5bf9\u8c61\uff0c\u8be5\u5bf9\u8c61\u4e2d\u5305\u542b\u6709\u5f02\u5e38\u4fe1\u606f\uff0c\u8c03\u7528\u8fd9\u4e2a\u5bf9\u8c61\u7684\u65b9\u6cd5\u53ef\u4ee5\u6355\u83b7\u5230\u8fd9\u4e2a\u5f02\u5e38\u5e76\u8fdb\u884c\u5904\u7406\u3002Java\u7684\u5f02\u5e38\u5904\u7406\u662f \u901a\u8fc75\u4e2a\u5173\u952e\u8bcd\u6765\u5b9e\u73b0\u7684\uff1atry\u3001catch\u3001throw\u3001throws\u548cfinally\u3002\u4e00\u822c\u60c5\u51b5\u4e0b\u662f\u7528try\u6765\u6267\u884c\u4e00\u6bb5\u7a0b\u5e8f\uff0c\u5982\u679c\u51fa\u73b0\u5f02\u5e38\uff0c\u7cfb\u7edf\u4f1a\u629b \u51fa\uff08throws\uff09\u4e00\u4e2a\u5f02\u5e38\uff0c\u8fd9\u65f6\u5019\u4f60\u53ef\u4ee5\u901a\u8fc7\u5b83\u7684\u7c7b\u578b\u6765\u6355\u6349\uff08catch\uff09\u5b83\uff0c\u6216\u6700\u540e\uff08finally\uff09\u7531\u7f3a\u7701\u5904\u7406\u5668\u6765\u5904\u7406\u3002
\n\u7528try\u6765\u6307\u5b9a\u4e00\u5757\u9884\u9632\u6240\u6709”\u5f02\u5e38”\u7684\u7a0b\u5e8f\u3002\u7d27\u8ddf\u5728try\u7a0b\u5e8f\u540e\u9762\uff0c\u5e94\u5305\u542b\u4e00\u4e2acatch\u5b50\u53e5\u6765\u6307\u5b9a\u4f60\u60f3\u8981\u6355\u6349\u7684”\u5f02\u5e38”\u7684\u7c7b\u578b\u3002
\nthrow\u8bed\u53e5\u7528\u6765\u660e\u786e\u5730\u629b\u51fa\u4e00\u4e2a”\u5f02\u5e38”\u3002
\nthrows\u7528\u6765\u6807\u660e\u4e00\u4e2a\u6210\u5458\u51fd\u6570\u53ef\u80fd\u629b\u51fa\u7684\u5404\u79cd”\u5f02\u5e38”\u3002
\nFinally\u4e3a\u786e\u4fdd\u4e00\u6bb5\u4ee3\u7801\u4e0d\u7ba1\u53d1\u751f\u4ec0\u4e48”\u5f02\u5e38”\u90fd\u88ab\u6267\u884c\u4e00\u6bb5\u4ee3\u7801\u3002
\n\u53ef \u4ee5\u5728\u4e00\u4e2a\u6210\u5458\u51fd\u6570\u8c03\u7528\u7684\u5916\u9762\u5199\u4e00\u4e2atry\u8bed\u53e5\uff0c\u5728\u8fd9\u4e2a\u6210\u5458\u51fd\u6570\u5185\u90e8\u5199\u53e6\u4e00\u4e2atry\u8bed\u53e5\u4fdd\u62a4\u5176\u4ed6\u4ee3\u7801\u3002\u6bcf\u5f53\u9047\u5230\u4e00\u4e2atry\u8bed\u53e5\uff0c”\u5f02\u5e38”\u7684\u6846\u67b6\u5c31\u653e\u5230\u5806\u6808\u4e0a \u9762\uff0c\u76f4\u5230\u6240\u6709\u7684try\u8bed\u53e5\u90fd\u5b8c\u6210\u3002\u5982\u679c\u4e0b\u4e00\u7ea7\u7684try\u8bed\u53e5\u6ca1\u6709\u5bf9\u67d0\u79cd”\u5f02\u5e38”\u8fdb\u884c\u5904\u7406\uff0c\u5806\u6808\u5c31\u4f1a\u5c55\u5f00\uff0c\u76f4\u5230\u9047\u5230\u6709\u5904\u7406\u8fd9\u79cd”\u5f02\u5e38”\u7684try\u8bed\u53e5\u3002<\/p>\n

http:\/\/www.programfan.com\/article\/showarticle.asp?id=2731<\/p>\n

97\u3001\u4e00\u4e2a”.java”\u6e90\u6587\u4ef6\u4e2d\u662f\u5426\u53ef\u4ee5\u5305\u62ec\u591a\u4e2a\u7c7b\uff08\u4e0d\u662f\u5185\u90e8\u7c7b\uff09\uff1f\u6709\u4ec0\u4e48\u9650\u5236\uff1f
\n\u53ef\u4ee5\u3002\u5fc5\u987b\u53ea\u6709\u4e00\u4e2a\u7c7b\u540d\u4e0e\u6587\u4ef6\u540d\u76f8\u540c\u3002<\/p>\n

98\u3001MVC\u7684\u5404\u4e2a\u90e8\u5206\u90fd\u6709\u90a3\u4e9b\u6280\u672f\u6765\u5b9e\u73b0?\u5982\u4f55\u5b9e\u73b0?
\nMVC \u662fModel\uff0dView\uff0dController\u7684\u7b80\u5199\u3002”Model” \u4ee3\u8868\u7684\u662f\u5e94\u7528\u7684\u4e1a\u52a1\u903b\u8f91\uff08\u901a\u8fc7JavaBean\uff0cEJB\u7ec4\u4ef6\u5b9e\u73b0\uff09\uff0c “View” \u662f\u5e94\u7528\u7684\u8868\u793a\u9762\uff0c\u7528\u4e8e\u4e0e\u7528\u6237\u7684\u4ea4\u4e92\uff08\u7531JSP\u9875\u9762\u4ea7\u751f\uff09\uff0c”Controller” \u662f\u63d0\u4f9b\u5e94\u7528\u7684\u5904\u7406\u8fc7\u7a0b\u63a7\u5236\uff08\u4e00\u822c\u662f\u4e00\u4e2aServlet\uff09\uff0c\u901a\u8fc7\u8fd9\u79cd\u8bbe\u8ba1\u6a21\u578b\u628a\u5e94\u7528\u903b\u8f91\uff0c\u5904\u7406\u8fc7\u7a0b\u548c\u663e\u793a\u903b\u8f91\u5206\u6210\u4e0d\u540c\u7684\u7ec4\u4ef6\u5b9e\u73b0\u3002\u8fd9\u4e9b\u7ec4\u4ef6\u53ef\u4ee5\u8fdb\u884c\u4ea4\u4e92\u548c\u91cd \u7528\u3002
\nmodel\u5c42\u5b9e\u73b0\u7cfb\u7edf\u4e2d\u7684\u4e1a\u52a1\u903b\u8f91\uff0cview\u5c42\u7528\u4e8e\u4e0e\u7528\u6237\u7684\u4ea4\u4e92\uff0ccontroller\u5c42\u662fmodel\u4e0eview\u4e4b\u95f4\u6c9f\u901a\u7684\u6865\u6881\uff0c\u53ef\u4ee5\u5206\u6d3e\u7528\u6237\u7684\u8bf7\u6c42\u5e76\u9009\u62e9\u6070\u5f53\u7684\u89c6\u56fe\u4ee5\u7528\u4e8e\u663e\u793a\uff0c\u540c\u65f6\u5b83\u4e5f\u53ef\u4ee5\u89e3\u91ca\u7528\u6237\u7684\u8f93\u5165\u5e76\u5c06\u5b83\u4eec\u6620\u5c04\u4e3a\u6a21\u578b\u5c42\u53ef\u6267\u884c\u7684\u64cd\u4f5c\u3002<\/p>\n

99\u3001java\u4e2d\u6709\u51e0\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5b9e\u73b0\u4e00\u4e2a\u7ebf\u7a0b\uff1f\u7528\u4ec0\u4e48\u5173\u952e\u5b57\u4fee\u9970\u540c\u6b65\u65b9\u6cd5? stop()\u548csuspend()\u65b9\u6cd5\u4e3a\u4f55\u4e0d\u63a8\u8350\u4f7f\u7528\uff1f
\n\u6709\u4e24\u79cd\u5b9e\u73b0\u65b9\u6cd5\uff0c\u5206\u522b\u662f\u7ee7\u627fThread\u7c7b\u4e0e\u5b9e\u73b0Runnable\u63a5\u53e3
\n\u7528synchronized\u5173\u952e\u5b57\u4fee\u9970\u540c\u6b65\u65b9\u6cd5
\n\u53cd \u5bf9\u4f7f\u7528stop()\uff0c\u662f\u56e0\u4e3a\u5b83\u4e0d\u5b89\u5168\u3002\u5b83\u4f1a\u89e3\u9664\u7531\u7ebf\u7a0b\u83b7\u53d6\u7684\u6240\u6709\u9501\u5b9a\uff0c\u800c\u4e14\u5982\u679c\u5bf9\u8c61\u5904\u4e8e\u4e00\u79cd\u4e0d\u8fde\u8d2f\u72b6\u6001\uff0c\u90a3\u4e48\u5176\u4ed6\u7ebf\u7a0b\u80fd\u5728\u90a3\u79cd\u72b6\u6001\u4e0b\u68c0\u67e5\u548c\u4fee\u6539\u5b83\u4eec\u3002\u7ed3\u679c \u5f88\u96be\u68c0\u67e5\u51fa\u771f\u6b63\u7684\u95ee\u9898\u6240\u5728\u3002suspend()\u65b9\u6cd5\u5bb9\u6613\u53d1\u751f\u6b7b\u9501\u3002\u8c03\u7528suspend()\u7684\u65f6\u5019\uff0c\u76ee\u6807\u7ebf\u7a0b\u4f1a\u505c\u4e0b\u6765\uff0c\u4f46\u5374\u4ecd\u7136\u6301\u6709\u5728\u8fd9\u4e4b\u524d\u83b7\u5f97\u7684\u9501\u5b9a\u3002\u6b64 \u65f6\uff0c\u5176\u4ed6\u4efb\u4f55\u7ebf\u7a0b\u90fd\u4e0d\u80fd\u8bbf\u95ee\u9501\u5b9a\u7684\u8d44\u6e90\uff0c\u9664\u975e\u88ab”\u6302\u8d77”\u7684\u7ebf\u7a0b\u6062\u590d\u8fd0\u884c\u3002\u5bf9\u4efb\u4f55\u7ebf\u7a0b\u6765\u8bf4\uff0c\u5982\u679c\u5b83\u4eec\u60f3\u6062\u590d\u76ee\u6807\u7ebf\u7a0b\uff0c\u540c\u65f6\u53c8\u8bd5\u56fe\u4f7f\u7528\u4efb\u4f55\u4e00\u4e2a\u9501\u5b9a\u7684\u8d44\u6e90\uff0c\u5c31 \u4f1a\u9020\u6210\u6b7b\u9501\u3002\u6240\u4ee5\u4e0d\u5e94\u8be5\u4f7f\u7528suspend()\uff0c\u800c\u5e94\u5728\u81ea\u5df1\u7684Thread\u7c7b\u4e2d\u7f6e\u5165\u4e00\u4e2a\u6807\u5fd7\uff0c\u6307\u51fa\u7ebf\u7a0b\u5e94\u8be5\u6d3b\u52a8\u8fd8\u662f\u6302\u8d77\u3002\u82e5\u6807\u5fd7\u6307\u51fa\u7ebf\u7a0b\u5e94\u8be5\u6302\u8d77\uff0c\u4fbf\u7528 wait()\u547d\u5176\u8fdb\u5165\u7b49\u5f85\u72b6\u6001\u3002\u82e5\u6807\u5fd7\u6307\u51fa\u7ebf\u7a0b\u5e94\u5f53\u6062\u590d\uff0c\u5219\u7528\u4e00\u4e2anotify()\u91cd\u65b0\u542f\u52a8\u7ebf\u7a0b\u3002<\/p>\n

100\u3001java\u4e2d\u6709\u51e0\u79cd\u7c7b\u578b\u7684\u6d41\uff1fJDK\u4e3a\u6bcf\u79cd\u7c7b\u578b\u7684\u6d41\u63d0\u4f9b\u4e86\u4e00\u4e9b\u62bd\u8c61\u7c7b\u4ee5\u4f9b\u7ee7\u627f\uff0c\u8bf7\u8bf4\u51fa\u4ed6\u4eec\u5206\u522b\u662f\u54ea\u4e9b\u7c7b\uff1f
\n\u5b57\u8282\u6d41\uff0c\u5b57\u7b26\u6d41\u3002\u5b57\u8282\u6d41\u7ee7\u627f\u4e8eInputStream OutputStream\uff0c\u5b57\u7b26\u6d41\u7ee7\u627f\u4e8eInputStreamReader OutputStreamWriter\u3002\u5728java.io\u5305\u4e2d\u8fd8\u6709\u8bb8\u591a\u5176\u4ed6\u7684\u6d41\uff0c\u4e3b\u8981\u662f\u4e3a\u4e86\u63d0\u9ad8\u6027\u80fd\u548c\u4f7f\u7528\u65b9\u4fbf\u3002<\/p>\n

101\u3001java\u4e2d\u4f1a\u5b58\u5728\u5185\u5b58\u6cc4\u6f0f\u5417\uff0c\u8bf7\u7b80\u5355\u63cf\u8ff0\u3002
\n\u7684\u786e\u5b58\u5728Java\u7684\u5185\u5b58\u6cc4\u6f0f, \u5e76\u4e14\u4e8b\u6001\u53ef\u4ee5\u53d8\u5f97\u76f8\u5f53\u4e25\u91cd<\/p>\n

Java garbage collector\u81ea\u52a8\u91ca\u653e\u54ea\u4e9b\u5185\u5b58\u91cc\u9762\u7a0b\u5e8f\u4e0d\u5728\u9700\u8981\u7684\u5bf9\u8c61, \u4ee5\u6b64\u907f\u514d\u5927\u591a\u6570\u7684\u5176\u4ed6\u7a0b\u5e8f\u4e0a\u4e0b\u6587\u7684\u5185\u5b58\u6cc4\u6f0f. \u4f46\u662fJava\u5e94\u7528\u7a0b\u5e8f\u4f9d\u65e7\u4f1a\u6709\u76f8\u5f53\u7684\u5185\u5b58\u6cc4\u6f0f. \u67e5\u627e\u539f\u56e0\u4f1a\u5341\u5206\u56f0\u96be.
\n\u6709\u4e24\u7c7b\u4e3b\u8981\u7684Java\u5185\u5b58\u6cc4\u6f0f:
\n* \u4e0d\u518d\u9700\u8981\u7684\u5bf9\u8c61\u5f15\u7528
\n* \u672a\u91ca\u653e\u7684\u7cfb\u7edf\u8d44\u6e90
\n2.2 \u975e\u5fc5\u8981\u7684\u5bf9\u8c61\u5f15\u7528
\nJava\u4ee3\u7801\u5e38\u5e38\u4fdd\u7559\u5bf9\u4e8e\u4e0d\u518d\u9700\u8981\u7684\u5bf9\u8c61\u5f15\u7528, \u5e76\u4e14\u8fd9\u7ec4\u7ec7\u4e86\u5185\u5b58\u7684\u5783\u573e\u6536\u96c6\u5668\u7684\u5de5\u4f5c. Java\u5bf9\u8c61\u901a\u5e38\u88ab\u5176\u4ed6\u5bf9\u8c61\u5305\u542b\u5f15\u7528, \u4e3a\u6b64\u4e00\u4e2a\u5355\u4e00\u5bf9\u8c61\u53ef\u4ee5\u4fdd\u6301\u6574\u4e2a\u5bf9\u8c61\u6811\u5728\u5185\u5b58\u4e2d, \u4e8e\u662f\u5bfc\u81f4\u4e86\u5982\u4e0b\u95ee\u9898:
\n* \u5728\u5411\u6570\u7ec4\u6dfb\u52a0\u5bf9\u8c61\u4ee5\u540e\u9057\u6f0f\u4e86\u5bf9\u4e8e\u4ed6\u4eec\u7684\u5904\u7406
\n* \u76f4\u5230\u4f60\u518d\u6b21\u4f7f\u7528\u5bf9\u8c61\u7684\u65f6\u5019\u90fd\u4e0d\u91ca\u653e\u5f15\u7528. \u6bd4\u5982\u4e00\u4e2a\u83dc\u5355\u6307\u4ee4\u53ef\u4ee5\u63d2\u4ef6\u4e00\u4e2a\u5bf9\u8c61\u5b9e\u4f8b\u5f15\u7528\u5e76\u4e14\u4e0d\u91ca\u653e\u4fbf\u4e8e\u4ee5\u540e\u518d\u6b21\u8c03\u7528\u7684\u65f6\u5019\u4f7f\u7528, \u4f46\u662f\u4e5f\u8bb8\u6c38\u8fdc\u4e0d\u4f1a\u53d1\u751f.
\n* \u5728\u5176\u4ed6\u5f15\u7528\u4f9d\u7136\u9700\u8981\u65e7\u6709\u72b6\u6001\u7684\u65f6\u5019\u8d38\u7136\u4fee\u6539\u5bf9\u8c61\u72b6\u6001. \u6bd4\u5982\u5f53\u4f60\u4e3a\u4e86\u5728\u4e00\u4e2a\u6587\u672c\u6587\u4ef6\u91cc\u9762\u4fdd\u5b58\u4e00\u4e9b\u5c5e\u6027\u800c\u4f7f\u7528\u4e00\u4e2a\u6570\u7ec4, \u8bf8\u5982”\u5b57\u7b26\u4e2a\u6570”\u7b49\u5b57\u6bb5\u5728\u4e0d\u518d\u9700\u8981\u7684\u65f6\u5019\u4f9d\u7136\u4fdd\u7559\u5728\u5185\u5b58\u5f53\u4e2d.
\n* \u5141\u8bb8\u4e00\u4e2a\u957f\u4e45\u6267\u884c\u7684\u7ebf\u7a0b\u6240\u5f15\u7528\u7684\u5bf9\u8c61. \u8bbe\u7f6e\u5f15\u7528\u4e3aNULL\u4e5f\u65e0\u6d4e\u4e8e\u4e8b, \u5728\u7ebf\u7a0b\u9000\u51fa\u548c\u7a7a\u95f2\u4e4b\u524d, \u5bf9\u8c61\u4e0d\u4f1a\u88ab\u6536\u96c6\u91ca\u653e
\n2.3 \u672a\u91ca\u653e\u7684\u7cfb\u7edf\u8d44\u6e90
\nJava\u65b9\u6cd5\u53ef\u4ee5\u5b9a\u4f4dJava\u5b9e\u4f8b\u610f\u5916\u7684\u5806\u5185\u5b58, \u8bf8\u5982\u9488\u5bf9\u89c6\u7a97\u548c\u4f4d\u56fe\u7684\u5185\u5b58\u8d44\u6e90. Java\u5e38\u5e38\u901a\u8fc7JNI(Java Native Interface)\u8c03\u7528C\/C++\u5b50\u7a0b\u5e8f\u5b9a\u4f4d\u8fd9\u4e9b\u8d44\u6e90.<\/p>\n

102\u3001java\u4e2d\u5b9e\u73b0\u591a\u6001\u7684\u673a\u5236\u662f\u4ec0\u4e48\uff1f
\n\u65b9\u6cd5\u7684\u91cd\u5199Overriding\u548c\u91cd\u8f7dOverloading\u662fJava\u591a\u6001\u6027\u7684\u4e0d\u540c\u8868\u73b0\u3002\u91cd\u5199Overriding\u662f\u7236\u7c7b\u4e0e\u5b50\u7c7b\u4e4b\u95f4\u591a\u6001\u6027\u7684\u4e00\u79cd\u8868\u73b0\uff0c\u91cd\u8f7dOverloading\u662f\u4e00\u4e2a\u7c7b\u4e2d\u591a\u6001\u6027\u7684\u4e00\u79cd\u8868\u73b0\u3002<\/p>\n

103\u3001\u5783\u573e\u56de\u6536\u5668\u7684\u57fa\u672c\u539f\u7406\u662f\u4ec0\u4e48\uff1f\u5783\u573e\u56de\u6536\u5668\u53ef\u4ee5\u9a6c\u4e0a\u56de\u6536\u5185\u5b58\u5417\uff1f\u6709\u4ec0\u4e48\u529e\u6cd5\u4e3b\u52a8\u901a\u77e5\u865a\u62df\u673a\u8fdb\u884c\u5783\u573e\u56de\u6536\uff1f
\n\u5bf9 \u4e8eGC\u6765\u8bf4\uff0c\u5f53\u7a0b\u5e8f\u5458\u521b\u5efa\u5bf9\u8c61\u65f6\uff0cGC\u5c31\u5f00\u59cb\u76d1\u63a7\u8fd9\u4e2a\u5bf9\u8c61\u7684\u5730\u5740\u3001\u5927\u5c0f\u4ee5\u53ca\u4f7f\u7528\u60c5\u51b5\u3002\u901a\u5e38\uff0cGC\u91c7\u7528\u6709\u5411\u56fe\u7684\u65b9\u5f0f\u8bb0\u5f55\u548c\u7ba1\u7406\u5806(heap)\u4e2d\u7684\u6240\u6709\u5bf9\u8c61\u3002 \u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\u786e\u5b9a\u54ea\u4e9b\u5bf9\u8c61\u662f”\u53ef\u8fbe\u7684”\uff0c\u54ea\u4e9b\u5bf9\u8c61\u662f”\u4e0d\u53ef\u8fbe\u7684”\u3002\u5f53GC\u786e\u5b9a\u4e00\u4e9b\u5bf9\u8c61\u4e3a”\u4e0d\u53ef\u8fbe”\u65f6\uff0cGC\u5c31\u6709\u8d23\u4efb\u56de\u6536\u8fd9\u4e9b\u5185\u5b58\u7a7a\u95f4\u3002\u53ef\u4ee5\u3002\u7a0b\u5e8f\u5458\u53ef\u4ee5\u624b \u52a8\u6267\u884cSystem.gc()\uff0c\u901a\u77e5GC\u8fd0\u884c\uff0c\u4f46\u662fJava\u8bed\u8a00\u89c4\u8303\u5e76\u4e0d\u4fdd\u8bc1GC\u4e00\u5b9a\u4f1a\u6267\u884c\u3002<\/p>\n

104\u3001\u9759\u6001\u53d8\u91cf\u548c\u5b9e\u4f8b\u53d8\u91cf\u7684\u533a\u522b\uff1f
\nstatic i = 10; \/\/\u5e38\u91cf
\nclass A a; a.i =10;\/\/\u53ef\u53d8<\/p>\n

105\u3001\u4ec0\u4e48\u662fjava\u5e8f\u5217\u5316\uff0c\u5982\u4f55\u5b9e\u73b0java\u5e8f\u5217\u5316\uff1f
\n\u5e8f\u5217\u5316\u5c31\u662f\u4e00\u79cd\u7528\u6765\u5904\u7406\u5bf9\u8c61\u6d41\u7684\u673a\u5236\uff0c\u6240\u8c13\u5bf9\u8c61\u6d41\u4e5f\u5c31\u662f\u5c06\u5bf9\u8c61\u7684\u5185\u5bb9\u8fdb\u884c\u6d41\u5316\u3002\u53ef\u4ee5\u5bf9\u6d41\u5316\u540e\u7684\u5bf9\u8c61\u8fdb\u884c\u8bfb\u5199\u64cd\u4f5c\uff0c\u4e5f\u53ef\u5c06\u6d41\u5316\u540e\u7684\u5bf9\u8c61\u4f20\u8f93\u4e8e\u7f51\u7edc\u4e4b\u95f4\u3002\u5e8f\u5217\u5316\u662f\u4e3a\u4e86\u89e3\u51b3\u5728\u5bf9\u5bf9\u8c61\u6d41\u8fdb\u884c\u8bfb\u5199\u64cd\u4f5c\u65f6\u6240\u5f15\u53d1\u7684\u95ee\u9898\u3002
\n\u5e8f \u5217\u5316\u7684\u5b9e\u73b0\uff1a\u5c06\u9700\u8981\u88ab\u5e8f\u5217\u5316\u7684\u7c7b\u5b9e\u73b0Serializable\u63a5\u53e3\uff0c\u8be5\u63a5\u53e3\u6ca1\u6709\u9700\u8981\u5b9e\u73b0\u7684\u65b9\u6cd5\uff0cimplements Serializable\u53ea\u662f\u4e3a\u4e86\u6807\u6ce8\u8be5\u5bf9\u8c61\u662f\u53ef\u88ab\u5e8f\u5217\u5316\u7684\uff0c\u7136\u540e\u4f7f\u7528\u4e00\u4e2a\u8f93\u51fa\u6d41(\u5982\uff1aFileOutputStream)\u6765\u6784\u9020\u4e00\u4e2a ObjectOutputStream(\u5bf9\u8c61\u6d41)\u5bf9\u8c61\uff0c\u63a5\u7740\uff0c\u4f7f\u7528ObjectOutputStream\u5bf9\u8c61\u7684writeObject(Object obj)\u65b9\u6cd5\u5c31\u53ef\u4ee5\u5c06\u53c2\u6570\u4e3aobj\u7684\u5bf9\u8c61\u5199\u51fa(\u5373\u4fdd\u5b58\u5176\u72b6\u6001)\uff0c\u8981\u6062\u590d\u7684\u8bdd\u5219\u7528\u8f93\u5165\u6d41\u3002<\/p>\n

106\u3001\u662f\u5426\u53ef\u4ee5\u4ece\u4e00\u4e2astatic\u65b9\u6cd5\u5185\u90e8\u53d1\u51fa\u5bf9\u975estatic\u65b9\u6cd5\u7684\u8c03\u7528\uff1f
\n\u4e0d\u53ef\u4ee5,\u5982\u679c\u5176\u4e2d\u5305\u542b\u5bf9\u8c61\u7684method()\uff1b\u4e0d\u80fd\u4fdd\u8bc1\u5bf9\u8c61\u521d\u59cb\u5316.<\/p>\n

107\u3001\u5199clone()\u65b9\u6cd5\u65f6\uff0c\u901a\u5e38\u90fd\u6709\u4e00\u884c\u4ee3\u7801\uff0c\u662f\u4ec0\u4e48\uff1f
\nClone \u6709\u7f3a\u7701\u884c\u4e3a\uff0csuper.clone();\u4ed6\u8d1f\u8d23\u4ea7\u751f\u6b63\u786e\u5927\u5c0f\u7684\u7a7a\u95f4\uff0c\u5e76\u9010\u4f4d\u590d\u5236\u3002<\/p>\n

108\u3001\u5728JAVA\u4e2d\uff0c\u5982\u4f55\u8df3\u51fa\u5f53\u524d\u7684\u591a\u91cd\u5d4c\u5957\u5faa\u73af\uff1f
\n\u7528break; return \u65b9\u6cd5\u3002<\/p>\n

109\u3001List\u3001Map\u3001Set\u4e09\u4e2a\u63a5\u53e3\uff0c\u5b58\u53d6\u5143\u7d20\u65f6\uff0c\u5404\u6709\u4ec0\u4e48\u7279\u70b9\uff1f
\nList \u4ee5\u7279\u5b9a\u6b21\u5e8f\u6765\u6301\u6709\u5143\u7d20\uff0c\u53ef\u6709\u91cd\u590d\u5143\u7d20\u3002Set \u65e0\u6cd5\u62e5\u6709\u91cd\u590d\u5143\u7d20,\u5185\u90e8\u6392\u5e8f\u3002Map \u4fdd\u5b58key-value\u503c\uff0cvalue\u53ef\u591a\u503c\u3002<\/p>\n

110\u3001J2EE\u662f\u4ec0\u4e48\uff1f
\nJ2EE \u662fSun\u516c\u53f8\u63d0\u51fa\u7684\u591a\u5c42(multi-diered),\u5206\u5e03\u5f0f(distributed),\u57fa\u4e8e\u7ec4\u4ef6(component-base)\u7684\u4f01\u4e1a\u7ea7\u5e94\u7528\u6a21\u578b (enterpriese application model).\u5728\u8fd9\u6837\u7684\u4e00\u4e2a\u5e94\u7528\u7cfb\u7edf\u4e2d\uff0c\u53ef\u6309\u7167\u529f\u80fd\u5212\u5206\u4e3a\u4e0d\u540c\u7684\u7ec4\u4ef6\uff0c\u8fd9\u4e9b\u7ec4\u4ef6\u53c8\u53ef\u5728\u4e0d\u540c\u8ba1\u7b97\u673a\u4e0a\uff0c\u5e76\u4e14\u5904\u4e8e\u76f8\u5e94\u7684\u5c42\u6b21(tier)\u4e2d\u3002\u6240\u5c5e\u5c42\u6b21\u5305\u62ec\u5ba2\u6237 \u5c42(clietn tier)\u7ec4\u4ef6,web\u5c42\u548c\u7ec4\u4ef6,Business\u5c42\u548c\u7ec4\u4ef6,\u4f01\u4e1a\u4fe1\u606f\u7cfb\u7edf(EIS)\u5c42\u3002<\/p>\n

111\u3001UML\u65b9\u9762
\n\u6807\u51c6\u5efa\u6a21\u8bed\u8a00UML\u3002\u7528\u4f8b\u56fe,\u9759\u6001\u56fe(\u5305\u62ec\u7c7b\u56fe\u3001\u5bf9\u8c61\u56fe\u548c\u5305\u56fe),\u884c\u4e3a\u56fe,\u4ea4\u4e92\u56fe(\u987a\u5e8f\u56fe,\u5408\u4f5c\u56fe),\u5b9e\u73b0\u56fe\u3002<\/p>\n

112\u3001\u8bf4\u51fa\u4e00\u4e9b\u5e38\u7528\u7684\u7c7b\uff0c\u5305\uff0c\u63a5\u53e3\uff0c\u8bf7\u5404\u4e3e5\u4e2a
\n\u5e38\u7528\u7684\u7c7b\uff1aBufferedReader BufferedWriter FileReader FileWirter String Integer
\n\u5e38\u7528\u7684\u5305\uff1ajava.lang java.awt java.io java.util java.sql
\n\u5e38\u7528\u7684\u63a5\u53e3\uff1aRemote List Map Document NodeList<\/p>\n

113\u3001\u5f00\u53d1\u4e2d\u90fd\u7528\u5230\u4e86\u90a3\u4e9b\u8bbe\u8ba1\u6a21\u5f0f?\u7528\u5728\u4ec0\u4e48\u573a\u5408?
\n\u6bcf\u4e2a\u6a21\u5f0f\u90fd\u63cf\u8ff0\u4e86\u4e00\u4e2a\u5728\u6211\u4eec\u7684\u73af\u5883\u4e2d\u4e0d\u65ad\u51fa\u73b0\u7684\u95ee\u9898\uff0c\u7136\u540e\u63cf\u8ff0\u4e86\u8be5\u95ee\u9898\u7684\u89e3\u51b3\u65b9\u6848\u7684\u6838\u5fc3\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u4f60\u53ef\u4ee5\u65e0\u6570\u6b21\u5730\u4f7f\u7528\u90a3\u4e9b\u5df2\u6709\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u65e0\u9700\u5728\u91cd\u590d\u76f8\u540c\u7684\u5de5\u4f5c\u3002\u4e3b\u8981\u7528\u5230\u4e86MVC\u7684\u8bbe\u8ba1\u6a21\u5f0f\u3002\u7528\u6765\u5f00\u53d1JSP\/Servlet\u6216\u8005J2EE\u7684\u76f8\u5173\u5e94\u7528\u3002\u7b80\u5355\u5de5\u5382\u6a21\u5f0f\u7b49\u3002<\/p>\n

114\u3001jsp\u6709\u54ea\u4e9b\u52a8\u4f5c?\u4f5c\u7528\u5206\u522b\u662f\u4ec0\u4e48?
\nJSP \u5171\u6709\u4ee5\u4e0b6\u79cd\u57fa\u672c\u52a8\u4f5c jsp:include\uff1a\u5728\u9875\u9762\u88ab\u8bf7\u6c42\u7684\u65f6\u5019\u5f15\u5165\u4e00\u4e2a\u6587\u4ef6\u3002 jsp:useBean\uff1a\u5bfb\u627e\u6216\u8005\u5b9e\u4f8b\u5316\u4e00\u4e2aJavaBean\u3002 jsp:setProperty\uff1a\u8bbe\u7f6eJavaBean\u7684\u5c5e\u6027\u3002 jsp:getProperty\uff1a\u8f93\u51fa\u67d0\u4e2aJavaBean\u7684\u5c5e\u6027\u3002 jsp:forward\uff1a\u628a\u8bf7\u6c42\u8f6c\u5230\u4e00\u4e2a\u65b0\u7684\u9875\u9762\u3002 jsp:plugin\uff1a\u6839\u636e\u6d4f\u89c8\u5668\u7c7b\u578b\u4e3aJava\u63d2\u4ef6\u751f\u6210OBJECT\u6216EMBED\u6807\u8bb0\u3002<\/p>\n

115\u3001Anonymous Inner Class (\u533f\u540d\u5185\u90e8\u7c7b) \u662f\u5426\u53ef\u4ee5extends(\u7ee7\u627f)\u5176\u5b83\u7c7b\uff0c\u662f\u5426\u53ef\u4ee5implements(\u5b9e\u73b0)interface(\u63a5\u53e3)?
\n\u53ef\u4ee5\u7ee7\u627f\u5176\u4ed6\u7c7b\u6216\u5b8c\u6210\u5176\u4ed6\u63a5\u53e3\uff0c\u5728swing\u7f16\u7a0b\u4e2d\u5e38\u7528\u6b64\u65b9\u5f0f\u3002<\/p>\n

116\u3001\u5e94\u7528\u670d\u52a1\u5668\u4e0eWEB SERVER\u7684\u533a\u522b\uff1f
\n\u5e94\u7528\u670d\u52a1\u5668\uff1aWeblogic\u3001Tomcat\u3001Jboss
\nWEB SERVER\uff1aIIS\u3001 Apache<\/p>\n

117\u3001BS\u4e0eCS\u7684\u8054\u7cfb\u4e0e\u533a\u522b\u3002
\nC\/S\u662fClient\/Server\u7684\u7f29\u5199\u3002\u670d\u52a1\u5668\u901a\u5e38\u91c7\u7528\u9ad8\u6027\u80fd\u7684PC\u3001\u5de5\u4f5c\u7ad9\u6216\u5c0f\u578b\u673a\uff0c\u5e76\u91c7\u7528\u5927\u578b\u6570\u636e\u5e93\u7cfb\u7edf\uff0c\u5982Oracle\u3001Sybase\u3001Informix\u6216 SQL Server\u3002\u5ba2\u6237\u7aef\u9700\u8981\u5b89\u88c5\u4e13\u7528\u7684\u5ba2\u6237\u7aef\u8f6f\u4ef6\u3002
\nB\/\uff33 \u662fBrower\/Server\u7684\u7f29\u5199\uff0c\u5ba2\u6237\u673a\u4e0a\u53ea\u8981\u5b89\u88c5\u4e00\u4e2a\u6d4f\u89c8\u5668\uff08Browser\uff09\uff0c\u5982Netscape Navigator\u6216Internet Explorer\uff0c\u670d\u52a1\u5668\u5b89\u88c5Oracle\u3001Sybase\u3001Informix\u6216 SQL Server\u7b49\u6570\u636e\u5e93\u3002\u5728\u8fd9\u79cd\u7ed3\u6784\u4e0b\uff0c\u7528\u6237\u754c\u9762\u5b8c\u5168\u901a\u8fc7WWW\u6d4f\u89c8\u5668\u5b9e\u73b0\uff0c\u4e00\u90e8\u5206\u4e8b\u52a1\u903b\u8f91\u5728\u524d\u7aef\u5b9e\u73b0\uff0c\u4f46\u662f\u4e3b\u8981\u4e8b\u52a1\u903b\u8f91\u5728\u670d\u52a1\u5668\u7aef\u5b9e\u73b0\u3002\u6d4f\u89c8\u5668\u901a\u8fc7\uff37eb Server \u540c\u6570\u636e\u5e93\u8fdb\u884c\u6570\u636e\u4ea4\u4e92\u3002
\nC\/S \u4e0e B\/S \u533a\u522b\uff1a
\n\uff11\uff0e\u786c\u4ef6\u73af\u5883\u4e0d\u540c:
\n\u3000\u3000C\/S \u4e00\u822c\u5efa\u7acb\u5728\u4e13\u7528\u7684\u7f51\u7edc\u4e0a, \u5c0f\u8303\u56f4\u91cc\u7684\u7f51\u7edc\u73af\u5883, \u5c40\u57df\u7f51\u4e4b\u95f4\u518d\u901a\u8fc7\u4e13\u95e8\u670d\u52a1\u5668\u63d0\u4f9b\u8fde\u63a5\u548c\u6570\u636e\u4ea4\u6362\u670d\u52a1.
\n\u3000\u3000B\/S \u5efa\u7acb\u5728\u5e7f\u57df\u7f51\u4e4b\u4e0a\u7684, \u4e0d\u5fc5\u662f\u4e13\u95e8\u7684\u7f51\u7edc\u786c\u4ef6\u73af\u5883,\u4f8b\u4e0e\u7535\u8bdd\u4e0a\u7f51, \u79df\u7528\u8bbe\u5907. \u4fe1\u606f\u81ea\u5df1\u7ba1\u7406. \u6709\u6bd4C\/S\u66f4\u5f3a\u7684\u9002\u5e94\u8303\u56f4, \u4e00\u822c\u53ea\u8981\u6709\u64cd\u4f5c\u7cfb\u7edf\u548c\u6d4f\u89c8\u5668\u5c31\u884c
\n\uff12\uff0e\u5bf9\u5b89\u5168\u8981\u6c42\u4e0d\u540c
\n\u3000\u3000C\/S \u4e00\u822c\u9762\u5411\u76f8\u5bf9\u56fa\u5b9a\u7684\u7528\u6237\u7fa4, \u5bf9\u4fe1\u606f\u5b89\u5168\u7684\u63a7\u5236\u80fd\u529b\u5f88\u5f3a. \u4e00\u822c\u9ad8\u5ea6\u673a\u5bc6\u7684\u4fe1\u606f\u7cfb\u7edf\u91c7\u7528C\/S \u7ed3\u6784\u9002\u5b9c. \u53ef\u4ee5\u901a\u8fc7B\/S\u53d1\u5e03\u90e8\u5206\u53ef\u516c\u5f00\u4fe1\u606f.
\n\u3000\u3000B\/S \u5efa\u7acb\u5728\u5e7f\u57df\u7f51\u4e4b\u4e0a, \u5bf9\u5b89\u5168\u7684\u63a7\u5236\u80fd\u529b\u76f8\u5bf9\u5f31, \u53ef\u80fd\u9762\u5411\u4e0d\u53ef\u77e5\u7684\u7528\u6237\u3002
\n\uff13\uff0e\u5bf9\u7a0b\u5e8f\u67b6\u6784\u4e0d\u540c
\n\u3000\u3000C\/S \u7a0b\u5e8f\u53ef\u4ee5\u66f4\u52a0\u6ce8\u91cd\u6d41\u7a0b, \u53ef\u4ee5\u5bf9\u6743\u9650\u591a\u5c42\u6b21\u6821\u9a8c, \u5bf9\u7cfb\u7edf\u8fd0\u884c\u901f\u5ea6\u53ef\u4ee5\u8f83\u5c11\u8003\u8651.
\n\u3000 \u3000B\/S \u5bf9\u5b89\u5168\u4ee5\u53ca\u8bbf\u95ee\u901f\u5ea6\u7684\u591a\u91cd\u7684\u8003\u8651, \u5efa\u7acb\u5728\u9700\u8981\u66f4\u52a0\u4f18\u5316\u7684\u57fa\u7840\u4e4b\u4e0a. \u6bd4C\/S\u6709\u66f4\u9ad8\u7684\u8981\u6c42 B\/S\u7ed3\u6784\u7684\u7a0b\u5e8f\u67b6\u6784\u662f\u53d1\u5c55\u7684\u8d8b\u52bf, \u4eceMS\u7684.Net\u7cfb\u5217\u7684BizTalk 2000 Exchange 2000\u7b49, \u5168\u9762\u652f\u6301\u7f51\u7edc\u7684\u6784\u4ef6\u642d\u5efa\u7684\u7cfb\u7edf. SUN \u548cIBM\u63a8\u7684JavaBean \u6784\u4ef6\u6280\u672f\u7b49,\u4f7f B\/S\u66f4\u52a0\u6210\u719f.
\n\uff14\uff0e\u8f6f\u4ef6\u91cd\u7528\u4e0d\u540c
\n\u3000\u3000C\/S \u7a0b\u5e8f\u53ef\u4ee5\u4e0d\u53ef\u907f\u514d\u7684\u6574\u4f53\u6027\u8003\u8651, \u6784\u4ef6\u7684\u91cd\u7528\u6027\u4e0d\u5982\u5728B\/S\u8981\u6c42\u4e0b\u7684\u6784\u4ef6\u7684\u91cd\u7528\u6027\u597d.
\n\u3000\u3000B\/S \u5bf9\u7684\u591a\u91cd\u7ed3\u6784,\u8981\u6c42\u6784\u4ef6\u76f8\u5bf9\u72ec\u7acb\u7684\u529f\u80fd. \u80fd\u591f\u76f8\u5bf9\u8f83\u597d\u7684\u91cd\u7528.\u5c31\u5165\u4e70\u6765\u7684\u9910\u684c\u53ef\u4ee5\u518d\u5229\u7528,\u800c\u4e0d\u662f\u505a\u5728\u5899\u4e0a\u7684\u77f3\u5934\u684c\u5b50
\n\uff15\uff0e\u7cfb\u7edf\u7ef4\u62a4\u4e0d\u540c
\n\u3000\u3000C\/S \u7a0b\u5e8f\u7531\u4e8e\u6574\u4f53\u6027, \u5fc5\u987b\u6574\u4f53\u8003\u5bdf, \u5904\u7406\u51fa\u73b0\u7684\u95ee\u9898\u4ee5\u53ca\u7cfb\u7edf\u5347\u7ea7. \u5347\u7ea7\u96be. \u53ef\u80fd\u662f\u518d\u505a\u4e00\u4e2a\u5168\u65b0\u7684\u7cfb\u7edf
\n\u3000\u3000B\/S \u6784\u4ef6\u7ec4\u6210,\u65b9\u9762\u6784\u4ef6\u4e2a\u522b\u7684\u66f4\u6362,\u5b9e\u73b0\u7cfb\u7edf\u7684\u65e0\u7f1d\u5347\u7ea7. \u7cfb\u7edf\u7ef4\u62a4\u5f00\u9500\u51cf\u5230\u6700\u5c0f.\u7528\u6237\u4ece\u7f51\u4e0a\u81ea\u5df1\u4e0b\u8f7d\u5b89\u88c5\u5c31\u53ef\u4ee5\u5b9e\u73b0\u5347\u7ea7.
\n\uff16\uff0e\u5904\u7406\u95ee\u9898\u4e0d\u540c
\n\u3000\u3000C\/S \u7a0b\u5e8f\u53ef\u4ee5\u5904\u7406\u7528\u6237\u9762\u56fa\u5b9a, \u5e76\u4e14\u5728\u76f8\u540c\u533a\u57df, \u5b89\u5168\u8981\u6c42\u9ad8\u9700\u6c42, \u4e0e\u64cd\u4f5c\u7cfb\u7edf\u76f8\u5173. \u5e94\u8be5\u90fd\u662f\u76f8\u540c\u7684\u7cfb\u7edf
\n\u3000\u3000B\/S \u5efa\u7acb\u5728\u5e7f\u57df\u7f51\u4e0a, \u9762\u5411\u4e0d\u540c\u7684\u7528\u6237\u7fa4, \u5206\u6563\u5730\u57df, \u8fd9\u662fC\/S\u65e0\u6cd5\u4f5c\u5230\u7684. \u4e0e\u64cd\u4f5c\u7cfb\u7edf\u5e73\u53f0\u5173\u7cfb\u6700\u5c0f.
\n\uff17\uff0e\u7528\u6237\u63a5\u53e3\u4e0d\u540c
\n\u3000\u3000C\/S \u591a\u662f\u5efa\u7acb\u7684Window\u5e73\u53f0\u4e0a,\u8868\u73b0\u65b9\u6cd5\u6709\u9650,\u5bf9\u7a0b\u5e8f\u5458\u666e\u904d\u8981\u6c42\u8f83\u9ad8
\n\u3000\u3000B\/S \u5efa\u7acb\u5728\u6d4f\u89c8\u5668\u4e0a, \u6709\u66f4\u52a0\u4e30\u5bcc\u548c\u751f\u52a8\u7684\u8868\u73b0\u65b9\u5f0f\u4e0e\u7528\u6237\u4ea4\u6d41. \u5e76\u4e14\u5927\u90e8\u5206\u96be\u5ea6\u51cf\u4f4e,\u51cf\u4f4e\u5f00\u53d1\u6210\u672c.
\n\uff18\uff0e\u4fe1\u606f\u6d41\u4e0d\u540c
\n\u3000\u3000C\/S \u7a0b\u5e8f\u4e00\u822c\u662f\u5178\u578b\u7684\u4e2d\u592e\u96c6\u6743\u7684\u673a\u68b0\u5f0f\u5904\u7406, \u4ea4\u4e92\u6027\u76f8\u5bf9\u4f4e
\n\u3000\u3000B\/S \u4fe1\u606f\u6d41\u5411\u53ef\u53d8\u5316, B-B B-C B-G\u7b49\u4fe1\u606f\u3001\u6d41\u5411\u7684\u53d8\u5316, \u66f4\u50cf\u4ea4\u6613\u4e2d\u5fc3\u3002<\/p>\n

118\u3001LINUX\u4e0b\u7ebf\u7a0b\uff0cGDI\u7c7b\u7684\u89e3\u91ca\u3002
\nLINUX\u5b9e\u73b0\u7684\u5c31\u662f\u57fa\u4e8e\u6838\u5fc3\u8f7b\u91cf\u7ea7\u8fdb\u7a0b\u7684”\u4e00\u5bf9\u4e00”\u7ebf\u7a0b\u6a21\u578b\uff0c\u4e00\u4e2a\u7ebf\u7a0b\u5b9e\u4f53\u5bf9\u5e94\u4e00\u4e2a\u6838\u5fc3\u8f7b\u91cf\u7ea7\u8fdb\u7a0b\uff0c\u800c\u7ebf\u7a0b\u4e4b\u95f4\u7684\u7ba1\u7406\u5728\u6838\u5916\u51fd\u6570\u5e93\u4e2d\u5b9e\u73b0\u3002
\nGDI\u7c7b\u4e3a\u56fe\u50cf\u8bbe\u5907\u7f16\u7a0b\u63a5\u53e3\u7c7b\u5e93\u3002<\/p>\n

119\u3001STRUTS\u7684\u5e94\u7528(\u5982STRUTS\u67b6\u6784)
\nStruts \u662f\u91c7\u7528Java Servlet\/JavaServer Pages\u6280\u672f\uff0c\u5f00\u53d1Web\u5e94\u7528\u7a0b\u5e8f\u7684\u5f00\u653e\u6e90\u7801\u7684framework\u3002 \u91c7\u7528Struts\u80fd\u5f00\u53d1\u51fa\u57fa\u4e8eMVC(Model-View-Controller)\u8bbe\u8ba1\u6a21\u5f0f\u7684\u5e94\u7528\u6784\u67b6\u3002 Struts\u6709\u5982\u4e0b\u7684\u4e3b\u8981\u529f\u80fd\uff1a \u4e00.\u5305\u542b\u4e00\u4e2acontroller servlet\uff0c\u80fd\u5c06\u7528\u6237\u7684\u8bf7\u6c42\u53d1\u9001\u5230\u76f8\u5e94\u7684Action\u5bf9\u8c61\u3002 \u4e8c.JSP\u81ea\u7531tag\u5e93\uff0c\u5e76\u4e14\u5728controller servlet\u4e2d\u63d0\u4f9b\u5173\u8054\u652f\u6301\uff0c\u5e2e\u52a9\u5f00\u53d1\u5458\u521b\u5efa\u4ea4\u4e92\u5f0f\u8868\u5355\u5e94\u7528\u3002 \u4e09.\u63d0\u4f9b\u4e86\u4e00\u7cfb\u5217\u5b9e\u7528\u5bf9\u8c61\uff1aXML\u5904\u7406\u3001\u901a\u8fc7Java reflection APIs\u81ea\u52a8\u5904\u7406JavaBeans\u5c5e\u6027\u3001\u56fd\u9645\u5316\u7684\u63d0\u793a\u548c\u6d88\u606f\u3002<\/p>\n

120\u3001Jdo\u662f\u4ec0\u4e48?
\nJDO \u662fJava\u5bf9\u8c61\u6301\u4e45\u5316\u7684\u65b0\u7684\u89c4\u8303\uff0c\u4e3ajava data object\u7684\u7b80\u79f0,\u4e5f\u662f\u4e00\u4e2a\u7528\u4e8e\u5b58\u53d6\u67d0\u79cd\u6570\u636e\u4ed3\u5e93\u4e2d\u7684\u5bf9\u8c61\u7684\u6807\u51c6\u5316API\u3002JDO\u63d0\u4f9b\u4e86\u900f\u660e\u7684\u5bf9\u8c61\u5b58\u50a8\uff0c\u56e0\u6b64\u5bf9\u5f00\u53d1\u4eba\u5458\u6765\u8bf4\uff0c\u5b58\u50a8\u6570\u636e\u5bf9\u8c61\u5b8c\u5168\u4e0d\u9700\u8981\u989d \u5916\u7684\u4ee3\u7801\uff08\u5982JDBC API\u7684\u4f7f\u7528\uff09\u3002\u8fd9\u4e9b\u7e41\u7410\u7684\u4f8b\u884c\u5de5\u4f5c\u5df2\u7ecf\u8f6c\u79fb\u5230JDO\u4ea7\u54c1\u63d0\u4f9b\u5546\u8eab\u4e0a\uff0c\u4f7f\u5f00\u53d1\u4eba\u5458\u89e3\u8131\u51fa\u6765\uff0c\u4ece\u800c\u96c6\u4e2d\u65f6\u95f4\u548c\u7cbe\u529b\u5728\u4e1a\u52a1\u903b\u8f91\u4e0a\u3002\u53e6\u5916\uff0cJDO\u5f88\u7075\u6d3b\uff0c\u56e0\u4e3a\u5b83 \u53ef\u4ee5\u5728\u4efb\u4f55\u6570\u636e\u5e95\u5c42\u4e0a\u8fd0\u884c\u3002JDBC\u53ea\u662f\u9762\u5411\u5173\u7cfb\u6570\u636e\u5e93\uff08RDBMS\uff09JDO\u66f4\u901a\u7528\uff0c\u63d0\u4f9b\u5230\u4efb\u4f55\u6570\u636e\u5e95\u5c42\u7684\u5b58\u50a8\u529f\u80fd\uff0c\u6bd4\u5982\u5173\u7cfb\u6570\u636e\u5e93\u3001\u6587\u4ef6\u3001XML\u4ee5\u53ca\u5bf9 \u8c61\u6570\u636e\u5e93\uff08ODBMS\uff09\u7b49\u7b49\uff0c\u4f7f\u5f97\u5e94\u7528\u53ef\u79fb\u690d\u6027\u66f4\u5f3a\u3002<\/p>\n

121\u3001\u5185\u90e8\u7c7b\u53ef\u4ee5\u5f15\u7528\u4ed6\u5305\u542b\u7c7b\u7684\u6210\u5458\u5417\uff1f\u6709\u6ca1\u6709\u4ec0\u4e48\u9650\u5236\uff1f
\n\u4e00\u4e2a\u5185\u90e8\u7c7b\u5bf9\u8c61\u53ef\u4ee5\u8bbf\u95ee\u521b\u5efa\u5b83\u7684\u5916\u90e8\u7c7b\u5bf9\u8c61\u7684\u5185\u5bb9<\/p>\n

\u5185\u90e8\u7c7b\u5982\u679c\u4e0d\u662fstatic\u7684\uff0c\u90a3\u4e48\u5b83\u53ef\u4ee5\u8bbf\u95ee\u521b\u5efa\u5b83\u7684\u5916\u90e8\u7c7b\u5bf9\u8c61\u7684\u6240\u6709\u5c5e\u6027
\n\u5185\u90e8\u7c7b\u5982\u679c\u662fsattic\u7684\uff0c\u5373\u4e3anested class\uff0c\u90a3\u4e48\u5b83\u53ea\u53ef\u4ee5\u8bbf\u95ee\u521b\u5efa\u5b83\u7684\u5916\u90e8\u7c7b\u5bf9\u8c61\u7684\u6240\u6709static\u5c5e\u6027<\/p>\n

\u4e00\u822c\u666e\u901a\u7c7b\u53ea\u6709public\u6216package\u7684\u8bbf\u95ee\u4fee\u9970\uff0c\u800c\u5185\u90e8\u7c7b\u53ef\u4ee5\u5b9e\u73b0static\uff0cprotected\uff0cprivate\u7b49\u8bbf\u95ee\u4fee\u9970\u3002<\/p>\n

\u5f53\u4ece\u5916\u90e8\u7c7b\u7ee7\u627f\u7684\u65f6\u5019\uff0c\u5185\u90e8\u7c7b\u662f\u4e0d\u4f1a\u88ab\u8986\u76d6\u7684\uff0c\u5b83\u4eec\u662f\u5b8c\u5168\u72ec\u7acb\u7684\u5b9e\u4f53\uff0c\u6bcf\u4e2a\u90fd\u5728\u81ea\u5df1\u7684\u547d\u540d\u7a7a\u95f4\u5185\uff0c\u5982\u679c\u4ece\u5185\u90e8\u7c7b\u4e2d\u660e\u786e\u5730\u7ee7\u627f\uff0c\u5c31\u53ef\u4ee5\u8986\u76d6\u539f\u6765\u5185\u90e8\u7c7b\u7684\u65b9\u6cd5\u3002<\/p>\n

122\u3001WEB SERVICE\u540d\u8bcd\u89e3\u91ca\u3002JSWDL\u5f00\u53d1\u5305\u7684\u4ecb\u7ecd\u3002JAXP\u3001JAXM\u7684\u89e3\u91ca\u3002SOAP\u3001UDDI,WSDL\u89e3\u91ca\u3002
\nWeb ServiceWeb Service\u662f\u57fa\u4e8e\u7f51\u7edc\u7684\u3001\u5206\u5e03\u5f0f\u7684\u6a21\u5757\u5316\u7ec4\u4ef6\uff0c\u5b83\u6267\u884c\u7279\u5b9a\u7684\u4efb\u52a1\uff0c\u9075\u5b88\u5177\u4f53\u7684\u6280\u672f\u89c4\u8303\uff0c\u8fd9\u4e9b\u89c4\u8303\u4f7f\u5f97Web Service\u80fd\u4e0e\u5176\u4ed6\u517c\u5bb9\u7684\u7ec4\u4ef6\u8fdb\u884c\u4e92\u64cd\u4f5c\u3002
\nJAXP(Java API for XML Parsing) \u5b9a\u4e49\u4e86\u5728Java\u4e2d\u4f7f\u7528DOM, SAX, XSLT\u7684\u901a\u7528\u7684\u63a5\u53e3\u3002\u8fd9\u6837\u5728\u4f60\u7684\u7a0b\u5e8f\u4e2d\u4f60\u53ea\u8981\u4f7f\u7528\u8fd9\u4e9b\u901a\u7528\u7684\u63a5\u53e3\uff0c\u5f53\u4f60\u9700\u8981\u6539\u53d8\u5177\u4f53\u7684\u5b9e\u73b0\u65f6\u5019\u4e5f\u4e0d\u9700\u8981\u4fee\u6539\u4ee3\u7801\u3002
\nJAXM(Java API for XML Messaging) \u662f\u4e3aSOAP\u901a\u4fe1\u63d0\u4f9b\u8bbf\u95ee\u65b9\u6cd5\u548c\u4f20\u8f93\u673a\u5236\u7684API\u3002
\nWSDL\u662f\u4e00\u79cd XML \u683c\u5f0f\uff0c\u7528\u4e8e\u5c06\u7f51\u7edc\u670d\u52a1\u63cf\u8ff0\u4e3a\u4e00\u7ec4\u7aef\u70b9\uff0c\u8fd9\u4e9b\u7aef\u70b9\u5bf9\u5305\u542b\u9762\u5411\u6587\u6863\u4fe1\u606f\u6216\u9762\u5411\u8fc7\u7a0b\u4fe1\u606f\u7684\u6d88\u606f\u8fdb\u884c\u64cd\u4f5c\u3002\u8fd9\u79cd\u683c\u5f0f\u9996\u5148\u5bf9\u64cd\u4f5c\u548c\u6d88\u606f\u8fdb\u884c\u62bd\u8c61\u63cf\u8ff0\uff0c\u7136\u540e\u5c06\u5176\u7ed1\u5b9a\u5230\u5177\u4f53\u7684\u7f51\u7edc\u534f\u8bae\u548c\u6d88\u606f\u683c\u5f0f\u4e0a\u4ee5\u5b9a\u4e49\u7aef\u70b9\u3002\u76f8\u5173\u7684\u5177\u4f53\u7aef\u70b9\u5373\u7ec4\u5408\u6210\u4e3a\u62bd\u8c61\u7aef\u70b9\uff08\u670d\u52a1\uff09\u3002
\nSOAP\u5373\u7b80\u5355\u5bf9\u8c61\u8bbf\u95ee\u534f\u8bae(Simple Object Access Protocol)\uff0c\u5b83\u662f\u7528\u4e8e\u4ea4\u6362XML\u7f16\u7801\u4fe1\u606f\u7684\u8f7b\u91cf\u7ea7\u534f\u8bae\u3002
\nUDDI \u7684\u76ee\u7684\u662f\u4e3a\u7535\u5b50\u5546\u52a1\u5efa\u7acb\u6807\u51c6\uff1bUDDI\u662f\u4e00\u5957\u57fa\u4e8eWeb\u7684\u3001\u5206\u5e03\u5f0f\u7684\u3001\u4e3aWeb Service\u63d0\u4f9b\u7684\u3001\u4fe1\u606f\u6ce8\u518c\u4e2d\u5fc3\u7684\u5b9e\u73b0\u6807\u51c6\u89c4\u8303\uff0c\u540c\u65f6\u4e5f\u5305\u542b\u4e00\u7ec4\u4f7f\u4f01\u4e1a\u80fd\u5c06\u81ea\u8eab\u63d0\u4f9b\u7684Web Service\u6ce8\u518c\uff0c\u4ee5\u4f7f\u522b\u7684\u4f01\u4e1a\u80fd\u591f\u53d1\u73b0\u7684\u8bbf\u95ee\u534f\u8bae\u7684\u5b9e\u73b0\u6807\u51c6\u3002<\/p>\n

soap\u662fweb service\u6700\u5173\u952e\u7684\u6280\u672f\uff0c\u662fweb service\u4e2d\u6570\u636e\u548c\u65b9\u6cd5\u8c03\u4f20\u8f93\u7684\u4ecb\u8d28\u3002<\/p>\n

WSDL\uff08web service definition language\uff09\u63cf\u8ff0\u4e86web service\u7684\u63a5\u53e3\u548c\u529f\u80fd\u3002<\/p>\n

JAVA\u4ee3\u7801\u67e5\u9519
\n1.
\nabstract class Name {
\nprivate String name;
\npublic abstract boolean isStupidName(String name) {}
\n}
\n\u5927\u4fa0\u4eec\uff0c\u8fd9\u6709\u4f55\u9519\u8bef?
\n\u7b54\u6848: \u9519\u3002abstract method\u5fc5\u987b\u4ee5\u5206\u53f7\u7ed3\u5c3e\uff0c\u4e14\u4e0d\u5e26\u82b1\u62ec\u53f7\u3002<\/p>\n

2.
\npublic class Something {
\nvoid doSomething () {
\nprivate String s = “”;
\nint l = s.length();
\n}
\n}
\n\u6709\u9519\u5417?
\n\u7b54\u6848: \u9519\u3002\u5c40\u90e8\u53d8\u91cf\u524d\u4e0d\u80fd\u653e\u7f6e\u4efb\u4f55\u8bbf\u95ee\u4fee\u9970\u7b26 (private\uff0cpublic\uff0c\u548cprotected)\u3002final\u53ef\u4ee5\u7528\u6765\u4fee\u9970\u5c40\u90e8\u53d8\u91cf
\n(final\u5982\u540cabstract\u548cstrictfp\uff0c\u90fd\u662f\u975e\u8bbf\u95ee\u4fee\u9970\u7b26\uff0cstrictfp\u53ea\u80fd\u4fee\u9970class\u548cmethod\u800c\u975evariable)\u3002<\/p>\n

3.
\nabstract class Something {
\nprivate abstract String doSomething ();
\n}
\n\u8fd9\u597d\u50cf\u6ca1\u4ec0\u4e48\u9519\u5427?
\n\u7b54\u6848: \u9519\u3002abstract\u7684methods\u4e0d\u80fd\u4ee5private\u4fee\u9970\u3002abstract\u7684methods\u5c31\u662f\u8ba9\u5b50\u7c7bimplement(\u5b9e\u73b0)\u5177\u4f53\u7ec6\u8282\u7684\uff0c\u600e\u4e48\u53ef\u4ee5\u7528private\u628aabstract
\nmethod\u5c01\u9501\u8d77\u6765\u5462? (\u540c\u7406\uff0cabstract method\u524d\u4e0d\u80fd\u52a0final)\u3002<\/p>\n

4.
\npublic class Something {
\npublic int addOne(final int x) {
\nreturn ++x;
\n}
\n}
\n\u8fd9\u4e2a\u6bd4\u8f83\u660e\u663e\u3002
\n\u7b54\u6848: \u9519\u3002int x\u88ab\u4fee\u9970\u6210final\uff0c\u610f\u5473\u7740x\u4e0d\u80fd\u5728addOne method\u4e2d\u88ab\u4fee\u6539\u3002<\/p>\n

5.
\npublic class Something {
\npublic static void main(String[] args) {
\nOther o = new Other();
\nnew Something().addOne(o);
\n}
\npublic void addOne(final Other o) {
\no.i++;
\n}
\n}
\nclass Other {
\npublic int i;
\n}
\n\u548c\u4e0a\u9762\u7684\u5f88\u76f8\u4f3c\uff0c\u90fd\u662f\u5173\u4e8efinal\u7684\u95ee\u9898\uff0c\u8fd9\u6709\u9519\u5417?
\n\u7b54\u6848: \u6b63\u786e\u3002\u5728addOne method\u4e2d\uff0c\u53c2\u6570o\u88ab\u4fee\u9970\u6210final\u3002\u5982\u679c\u5728addOne method\u91cc\u6211\u4eec\u4fee\u6539\u4e86o\u7684reference
\n(\u6bd4\u5982: o = new Other();)\uff0c\u90a3\u4e48\u5982\u540c\u4e0a\u4f8b\u8fd9\u9898\u4e5f\u662f\u9519\u7684\u3002\u4f46\u8fd9\u91cc\u4fee\u6539\u7684\u662fo\u7684member vairable
\n(\u6210\u5458\u53d8\u91cf)\uff0c\u800co\u7684reference\u5e76\u6ca1\u6709\u6539\u53d8\u3002<\/p>\n

6.
\nclass Something {
\nint i;
\npublic void doSomething() {
\nSystem.out.println(“i = ” + i);
\n}
\n}
\n\u6709\u4ec0\u4e48\u9519\u5462? \u770b\u4e0d\u51fa\u6765\u554a\u3002
\n\u7b54\u6848: \u6b63\u786e\u3002\u8f93\u51fa\u7684\u662f”i = 0″\u3002int i\u5c5e\u65bcinstant variable (\u5b9e\u4f8b\u53d8\u91cf\uff0c\u6216\u53eb\u6210\u5458\u53d8\u91cf)\u3002instant variable\u6709default value\u3002int\u7684default value\u662f0\u3002<\/p>\n

7.
\nclass Something {
\nfinal int i;
\npublic void doSomething() {
\nSystem.out.println(“i = ” + i);
\n}
\n}
\n\u548c\u4e0a\u9762\u4e00\u9898\u53ea\u6709\u4e00\u4e2a\u5730\u65b9\u4e0d\u540c\uff0c\u5c31\u662f\u591a\u4e86\u4e00\u4e2afinal\u3002\u8fd9\u96be\u9053\u5c31\u9519\u4e86\u5417?
\n\u7b54 \u6848: \u9519\u3002final int i\u662f\u4e2afinal\u7684instant variable (\u5b9e\u4f8b\u53d8\u91cf\uff0c\u6216\u53eb\u6210\u5458\u53d8\u91cf)\u3002final\u7684instant variable\u6ca1\u6709default value\uff0c\u5fc5\u987b\u5728constructor (\u6784\u9020\u5668)\u7ed3\u675f\u4e4b\u524d\u88ab\u8d4b\u4e88\u4e00\u4e2a\u660e\u786e\u7684\u503c\u3002\u53ef\u4ee5\u4fee\u6539\u4e3a”final int i = 0;”\u3002<\/p>\n

8.
\npublic class Something {
\npublic static void main(String[] args) {
\nSomething s = new Something();
\nSystem.out.println(“s.doSomething() returns ” + doSomething());
\n}
\npublic String doSomething() {
\nreturn “Do something …”;
\n}
\n}
\n\u770b\u4e0a\u53bb\u5f88\u5b8c\u7f8e\u3002
\n\u7b54 \u6848: \u9519\u3002\u770b\u4e0a\u53bb\u5728main\u91cccall doSomething\u6ca1\u6709\u4ec0\u4e48\u95ee\u9898\uff0c\u6bd5\u7adf\u4e24\u4e2amethods\u90fd\u5728\u540c\u4e00\u4e2aclass\u91cc\u3002\u4f46\u4ed4\u7ec6\u770b\uff0cmain\u662fstatic\u7684\u3002static method\u4e0d\u80fd\u76f4\u63a5call non-static methods\u3002\u53ef\u6539\u6210”System.out.println(“s.doSomething() returns ” + s.doSomething());”\u3002\u540c\u7406\uff0cstatic method\u4e0d\u80fd\u8bbf\u95eenon-static instant variable\u3002<\/p>\n

9.
\n\u6b64\u5904\uff0cSomething\u7c7b\u7684\u6587\u4ef6\u540d\u53ebOtherThing.java
\nclass Something {
\nprivate static void main(String[] something_to_do) {
\nSystem.out.println(“Do something …”);
\n}
\n}
\n\u8fd9\u4e2a\u597d\u50cf\u5f88\u660e\u663e\u3002
\n\u7b54\u6848: \u6b63\u786e\u3002\u4ece\u6765\u6ca1\u6709\u4eba\u8bf4\u8fc7Java\u7684Class\u540d\u5b57\u5fc5\u987b\u548c\u5176\u6587\u4ef6\u540d\u76f8\u540c\u3002\u4f46public class\u7684\u540d\u5b57\u5fc5\u987b\u548c\u6587\u4ef6\u540d\u76f8\u540c\u3002<\/p>\n

10\uff0e
\ninterface A{
\nint x = 0;
\n}
\nclass B{
\nint x =1;
\n}
\nclass C extends B implements A {
\npublic void pX(){
\nSystem.out.println(x);
\n}
\npublic static void main(String[] args) {
\nnew C().pX();
\n}
\n}
\n\u7b54 \u6848\uff1a\u9519\u8bef\u3002\u5728\u7f16\u8bd1\u65f6\u4f1a\u53d1\u751f\u9519\u8bef(\u9519\u8bef\u63cf\u8ff0\u4e0d\u540c\u7684JVM\u6709\u4e0d\u540c\u7684\u4fe1\u606f\uff0c\u610f\u601d\u5c31\u662f\u672a\u660e\u786e\u7684x\u8c03\u7528\uff0c\u4e24\u4e2ax\u90fd\u5339\u914d\uff08\u5c31\u8c61\u5728\u540c\u65f6import java.util\u548cjava.sql\u4e24\u4e2a\u5305\u65f6\u76f4\u63a5\u58f0\u660eDate\u4e00\u6837\uff09\u3002\u5bf9\u4e8e\u7236\u7c7b\u7684\u53d8\u91cf,\u53ef\u4ee5\u7528super.x\u6765\u660e\u786e\uff0c\u800c\u63a5\u53e3\u7684\u5c5e\u6027\u9ed8\u8ba4\u9690\u542b\u4e3a public static final.\u6240\u4ee5\u53ef\u4ee5\u901a\u8fc7A.x\u6765\u660e\u786e\u3002<\/p>\n

11.
\ninterface Playable {
\nvoid play();
\n}
\ninterface Bounceable {
\nvoid play();
\n}
\ninterface Rollable extends Playable, Bounceable {
\nBall ball = new Ball(“PingPang”);
\n}
\nclass Ball implements Rollable {
\nprivate String name;
\npublic String getName() {
\nreturn name;
\n}
\npublic Ball(String name) {
\nthis.name = name;
\n}
\npublic void play() {
\nball = new Ball(“Football”);
\nSystem.out.println(ball.getName());
\n}
\n}
\n\u8fd9\u4e2a\u9519\u8bef\u4e0d\u5bb9\u6613\u53d1\u73b0\u3002
\n\u7b54 \u6848: \u9519\u3002”interface Rollable extends Playable, Bounceable”\u6ca1\u6709\u95ee\u9898\u3002interface\u53ef\u7ee7\u627f\u591a\u4e2ainterfaces\uff0c\u6240\u4ee5\u8fd9\u91cc\u6ca1\u9519\u3002\u95ee\u9898\u51fa\u5728interface Rollable\u91cc\u7684”Ball ball = new Ball(“PingPang”);”\u3002\u4efb\u4f55\u5728interface\u91cc\u58f0\u660e\u7684interface variable (\u63a5\u53e3\u53d8\u91cf\uff0c\u4e5f\u53ef\u79f0\u6210\u5458\u53d8\u91cf)\uff0c\u9ed8\u8ba4\u4e3apublic static final\u3002\u4e5f\u5c31\u662f\u8bf4”Ball ball = new Ball(“PingPang”);”\u5b9e\u9645\u4e0a\u662f”public static final Ball ball = new Ball(“PingPang”);”\u3002\u5728Ball\u7c7b\u7684Play()\u65b9\u6cd5\u4e2d\uff0c”ball = new Ball(“Football”);”\u6539\u53d8\u4e86ball\u7684reference\uff0c\u800c\u8fd9\u91cc\u7684ball\u6765\u81eaRollable interface\uff0cRollable interface\u91cc\u7684ball\u662fpublic static final\u7684\uff0cfinal\u7684object\u662f\u4e0d\u80fd\u88ab\u6539\u53d8reference\u7684\u3002\u56e0\u6b64\u7f16\u8bd1\u5668\u5c06\u5728”ball = new Ball(“Football”);”\u8fd9\u91cc\u663e\u793a\u6709\u9519\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

http:\/\/blog.csdn.net\/aaronbai\/archive\/2006\/12\/27\/1465071.aspx Java\u57fa\u7840\u65b9\u9762: 0\u3001\u4f5c\u7528\u57dfpublic,private,protecte… <\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[28],"tags":[],"class_list":["post-11","post","type-post","status-publish","format-standard","hentry","category-computer"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/opgogo.com\/blog2\/index.php?rest_route=\/wp\/v2\/posts\/11","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/opgogo.com\/blog2\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/opgogo.com\/blog2\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/opgogo.com\/blog2\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/opgogo.com\/blog2\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=11"}],"version-history":[{"count":0,"href":"https:\/\/opgogo.com\/blog2\/index.php?rest_route=\/wp\/v2\/posts\/11\/revisions"}],"wp:attachment":[{"href":"https:\/\/opgogo.com\/blog2\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=11"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/opgogo.com\/blog2\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/opgogo.com\/blog2\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}