15\u3001\u7f16\u7a0b\uff1a\u7f16\u5199\u4e00\u4e2a\u622a\u53d6\u5b57\u7b26\u4e32\u7684\u51fd\u6570\uff0c\u8f93\u5165\u4e3a\u4e00\u4e2a\u5b57\u7b26\u4e32\u548c\u5b57\u8282\u6570\uff0c\u8f93\u51fa\u4e3a\u6309\u5b57\u8282\u622a\u53d6\u7684\u5b57\u7b26\u4e32\u3002 \u4f46\u662f\u8981\u4fdd\u8bc1\u6c49\u5b57\u4e0d\u88ab\u622a\u534a\u4e2a\uff0c\u5982\u201c\u6211ABC\u201d4\uff0c\u5e94\u8be5\u622a\u4e3a\u201c\u6211AB\u201d\uff0c\u8f93\u5165\u201c\u6211ABC\u6c49DEF\u201d\uff0c6\uff0c\u5e94\u8be5\u8f93\u51fa\u4e3a\u201c\u6211ABC\u201d\u800c\u4e0d\u662f\u201c\u6211ABC+\u6c49\u7684\u534a\u4e2a\u201d\u3002
\n\u7b54\uff1a\u4ee3\u7801\u5982\u4e0b\uff1a
\npackage test;<\/p>\n
class SplitString
\n{
\nString SplitStr;
\nint SplitByte;
\npublic SplitString(String str,int bytes)
\n{
\nSplitStr=str;
\nSplitByte=bytes;
\nSystem.out.println(“The String is:'”+SplitStr+”';SplitBytes=”+SplitByte);
\n}
\npublic void SplitIt()
\n{
\nint loopCount;<\/p>\n
loopCount=(SplitStr.length()%SplitByte==0)?(SplitStr.length()\/SplitByte):(SplitStr.length()\/Split<\/p>\n
Byte+1);
\nSystem.out.println(“Will Split into “+loopCount);
\nfor (int i=1;i<=loopCount ;i++ )\n{\nif (i==loopCount){\n\n\nSystem.out.println(SplitStr.substring((i-1)*SplitByte,SplitStr.length()));\n} else {\n\n\nSystem.out.println(SplitStr.substring((i-1)*SplitByte,(i*SplitByte)));\n}\n}\n}\npublic static void main(String[] args)\n{\nSplitString ss = new SplitString(\"test\u4e2ddd\u6587dsaf\u4e2d\u7537\u59273443n\u4e2d\u56fd43\u4e2d\u56fd\u4eba\n\n0ewldfls=103\",4);\nss.SplitIt();\n}\n}\n\n16\u3001JAVA\u591a\u7ebf\u7a0b\u7f16\u7a0b\u3002 \u7528JAVA\u5199\u4e00\u4e2a\u591a\u7ebf\u7a0b\u7a0b\u5e8f\uff0c\u5982\u5199\u56db\u4e2a\u7ebf\u7a0b\uff0c\u4e8c\u4e2a\u52a01\uff0c\u4e8c\u4e2a\u5bf9\u4e00\u4e2a\u53d8\u91cf\u51cf\u4e00\uff0c\u8f93\u51fa\u3002\n\u5e0c\u671b\u5927\u5bb6\u8865\u4e0a\uff0c\u8c22\u8c22\n\n17\u3001STRING\u4e0eSTRINGBUFFER\u7684\u533a\u522b\u3002\n\u7b54\uff1aSTRING\u7684\u957f\u5ea6\u662f\u4e0d\u53ef\u53d8\u7684\uff0cSTRINGBUFFER\u7684\u957f\u5ea6\u662f\u53ef\u53d8\u7684\u3002\u5982\u679c\u4f60\u5bf9\u5b57\u7b26\u4e32\u4e2d\u7684\u5185\u5bb9\u7ecf\u5e38\u8fdb\u884c\u64cd\u4f5c\uff0c\u7279\u522b\u662f\u5185\u5bb9\u8981\u4fee\u6539\u65f6\uff0c\u90a3\u4e48\u4f7f\u7528StringBuffer\uff0c\u5982\u679c\u6700\u540e\u9700\u8981String\uff0c\u90a3\u4e48\u4f7f\u7528StringBuffer\u7684toString()\u65b9\u6cd5\n\nJsp\u65b9\u9762\n\n1\u3001jsp\u6709\u54ea\u4e9b\u5185\u7f6e\u5bf9\u8c61?\u4f5c\u7528\u5206\u522b\u662f\u4ec0\u4e48?\n\u7b54:JSP\u5171\u6709\u4ee5\u4e0b9\u79cd\u57fa\u672c\u5185\u7f6e\u7ec4\u4ef6\uff08\u53ef\u4e0eASP\u76846\u79cd\u5185\u90e8\u7ec4\u4ef6\u76f8\u5bf9\u5e94\uff09\uff1a\n\u3000request \u7528\u6237\u7aef\u8bf7\u6c42\uff0c\u6b64\u8bf7\u6c42\u4f1a\u5305\u542b\u6765\u81eaGET\/POST\u8bf7\u6c42\u7684\u53c2\u6570\nresponse \u7f51\u9875\u4f20\u56de\u7528\u6237\u7aef\u7684\u56de\u5e94\npageContext \u7f51\u9875\u7684\u5c5e\u6027\u662f\u5728\u8fd9\u91cc\u7ba1\u7406\nsession \u4e0e\u8bf7\u6c42\u6709\u5173\u7684\u4f1a\u8bdd\u671f\napplication servlet \u6b63\u5728\u6267\u884c\u7684\u5185\u5bb9\nout \u7528\u6765\u4f20\u9001\u56de\u5e94\u7684\u8f93\u51fa\nconfig servlet\u7684\u6784\u67b6\u90e8\u4ef6\npage JSP\u7f51\u9875\u672c\u8eab\nexception \u9488\u5bf9\u9519\u8bef\u7f51\u9875\uff0c\u672a\u6355\u6349\u7684\u4f8b\u5916\n\n2\u3001jsp\u6709\u54ea\u4e9b\u52a8\u4f5c?\u4f5c\u7528\u5206\u522b\u662f\u4ec0\u4e48?\n\u7b54:JSP\u5171\u6709\u4ee5\u4e0b6\u79cd\u57fa\u672c\u52a8\u4f5c\njsp:include\uff1a\u5728\u9875\u9762\u88ab\u8bf7\u6c42\u7684\u65f6\u5019\u5f15\u5165\u4e00\u4e2a\u6587\u4ef6\u3002\njsp:useBean\uff1a\u5bfb\u627e\u6216\u8005\u5b9e\u4f8b\u5316\u4e00\u4e2aJavaBean\u3002\njsp:setProperty\uff1a\u8bbe\u7f6eJavaBean\u7684\u5c5e\u6027\u3002\njsp:getProperty\uff1a\u8f93\u51fa\u67d0\u4e2aJavaBean\u7684\u5c5e\u6027\u3002\njsp:forward\uff1a\u628a\u8bf7\u6c42\u8f6c\u5230\u4e00\u4e2a\u65b0\u7684\u9875\u9762\u3002\njsp:plugin\uff1a\u6839\u636e\u6d4f\u89c8\u5668\u7c7b\u578b\u4e3aJava\u63d2\u4ef6\u751f\u6210OBJECT\u6216EMBED\u6807\u8bb0\n\n3\u3001JSP\u4e2d\u52a8\u6001INCLUDE\u4e0e\u9759\u6001INCLUDE\u7684\u533a\u522b\uff1f\n\u7b54\uff1a\u52a8\u6001INCLUDE\u7528jsp:include\u52a8\u4f5c\u5b9e\u73b0\n\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\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\n\n\n4\u3001\u4e24\u79cd\u8df3\u8f6c\u65b9\u5f0f\u5206\u522b\u662f\u4ec0\u4e48?\u6709\u4ec0\u4e48\u533a\u522b?\n\u7b54\uff1a\u6709\u4e24\u79cd\uff0c\u5206\u522b\u4e3a\uff1a\n\n\n\u524d\u8005\u9875\u9762\u4e0d\u4f1a\u8f6c\u5411include\u6240\u6307\u7684\u9875\u9762\uff0c\u53ea\u662f\u663e\u793a\u8be5\u9875\u7684\u7ed3\u679c\uff0c\u4e3b\u9875\u9762\u8fd8\u662f\u539f\u6765\u7684\u9875\u9762\u3002\u6267\u884c\u5b8c\u540e\u8fd8\u4f1a\u56de\u6765\uff0c\u76f8\u5f53\u4e8e\u51fd\u6570\u8c03\u7528\u3002\u5e76\u4e14\u53ef\u4ee5\u5e26\u53c2\u6570.\u540e\u8005\u5b8c\u5168\u8f6c\u5411\u65b0\u9875\u9762\uff0c\u4e0d\u4f1a\u518d\u56de\u6765\u3002\u76f8\u5f53\u4e8ego to \u8bed\u53e5\u3002\n\nServlet\u65b9\u9762\n\n1\u3001\u8bf4\u4e00\u8bf4Servlet\u7684\u751f\u547d\u5468\u671f?\n\u7b54:servlet\u6709\u826f\u597d\u7684\u751f\u5b58\u671f\u7684\u5b9a\u4e49\uff0c\u5305\u62ec\u52a0\u8f7d\u548c\u5b9e\u4f8b\u5316\u3001\u521d\u59cb\u5316\u3001\u5904\u7406\u8bf7\u6c42\u4ee5\u53ca\u670d\u52a1\u7ed3\u675f\u3002\u8fd9\u4e2a\u751f\u5b58\u671f\u7531javax.servlet.Servlet\u63a5\u53e3\u7684init,service\u548cdestroy\u65b9\u6cd5\u8868\u8fbe\u3002\n\n2\u3001Servlet\u7248\u672c\u95f4(\u5fd8\u4e86\u95ee\u7684\u662f\u54ea\u4e24\u4e2a\u7248\u672c\u4e86)\u7684\u4e0d\u540c?\n\u5e0c\u671b\u5927\u5bb6\u8865\u4e0a\uff0c\u8c22\u8c22\n\n3\u3001JAVA SERVLET API\u4e2dforward() \u4e0eredirect()\u7684\u533a\u522b\uff1f\n\u7b54:\u524d\u8005\u4ec5\u662f\u5bb9\u5668\u4e2d\u63a7\u5236\u6743\u7684\u8f6c\u5411\uff0c\u5728\u5ba2\u6237\u7aef\u6d4f\u89c8\u5668\u5730\u5740\u680f\u4e2d\u4e0d\u4f1a\u663e\u793a\u51fa\u8f6c\u5411\u540e\u7684\u5730\u5740\uff1b\u540e\u8005\u5219\u662f\u5b8c\u5168\u7684\u8df3\u8f6c\uff0c\u6d4f\u89c8\u5668\u5c06\u4f1a\u5f97\u5230\u8df3\u8f6c\u7684\u5730\u5740\uff0c\u5e76\u91cd\u65b0\u53d1\u9001\u8bf7\u6c42\u94fe\u63a5\u3002\u8fd9\u6837\uff0c\u4ece\u6d4f\u89c8\u5668\u7684\u5730\u5740\u680f\u4e2d\u53ef\u4ee5\u770b\u5230\u8df3\u8f6c\u540e\u7684\u94fe\u63a5\u5730\u5740\u3002\u6240\u4ee5\uff0c\u524d\u8005\u66f4\u52a0\u9ad8\u6548\uff0c\u5728\u524d\u8005\u53ef\u4ee5\u6ee1\u8db3\u9700\u8981\u65f6\uff0c\u5c3d\u91cf\u4f7f\u7528forward()\u65b9\u6cd5\uff0c\u5e76\u4e14\uff0c\u8fd9\u6837\u4e5f\u6709\u52a9\u4e8e\u9690\u85cf\u5b9e\u9645\u7684\u94fe\u63a5\u3002\u5728\u6709\u4e9b\u60c5\u51b5\u4e0b\uff0c\u6bd4\u5982\uff0c\u9700\u8981\u8df3\u8f6c\u5230\u4e00\u4e2a\u5176\u5b83\u670d\u52a1\u5668\u4e0a\u7684\u8d44\u6e90\uff0c\u5219\u5fc5\u987b\u4f7f\u7528sendRedirect()\u65b9\u6cd5\u3002\n\n4\u3001Servlet\u7684\u57fa\u672c\u67b6\u6784\npublic class ServletName extends HttpServlet {\npublic void doPost(HttpServletRequest request, HttpServletResponse response) throws\nServletException, IOException {\n}\npublic void doGet(HttpServletRequest request, HttpServletResponse response) throws\nServletException, IOException {\n}\n}\n\nJdbc\u3001Jdo\u65b9\u9762\n\n1\u3001\u53ef\u80fd\u4f1a\u8ba9\u4f60\u5199\u4e00\u6bb5Jdbc\u8fdeOracle\u7684\u7a0b\u5e8f,\u5e76\u5b9e\u73b0\u6570\u636e\u67e5\u8be2.\n\u7b54:\u7a0b\u5e8f\u5982\u4e0b\uff1a\npackage hello.ant;\nimport java.sql.*;\npublic class jdbc\n{\nString dbUrl=\"jdbc:oracle:thin:@127.0.0.1:1521:orcl\";\nString theUser=\"admin\";\nString thePw=\"manager\";\nConnection c=null;\nStatement conn;\nResultSet rs=null;\npublic jdbc()\n{\ntry{\nClass.forName(\"oracle.jdbc.driver.OracleDriver\").newInstance();\nc = DriverManager.getConnection(dbUrl,theUser,thePw);\nconn=c.createStatement();\n}catch(Exception e){\ne.printStackTrace();\n}\n}\npublic boolean executeUpdate(String sql)\n{\ntry\n{\nconn.executeUpdate(sql);\nreturn true;\n}\ncatch (SQLException e)\n{\ne.printStackTrace();\nreturn false;\n}\n}\npublic ResultSet executeQuery(String sql)\n{\nrs=null;\ntry\n{\nrs=conn.executeQuery(sql);\n}\ncatch (SQLException e)\n{\ne.printStackTrace();\n}\nreturn rs;\n}\npublic void close()\n{\ntry\n{\nconn.close();\nc.close();\n}\ncatch (Exception e)\n{\ne.printStackTrace();\n}\n}\npublic static void main(String[] args)\n{\nResultSet rs;\njdbc conn = new jdbc();\nrs=conn.executeQuery(\"select * from test\");\ntry{\nwhile (rs.next())\n{\nSystem.out.println(rs.getString(\"id\"));\nSystem.out.println(rs.getString(\"name\"));\n}\n}catch(Exception e)\n{\ne.printStackTrace();\n}\n}\n}\n\n\n\n<\/p>\n","protected":false},"excerpt":{"rendered":"
15\u3001\u7f16\u7a0b\uff1a\u7f16\u5199\u4e00\u4e2a\u622a\u53d6\u5b57\u7b26\u4e32\u7684\u51fd\u6570\uff0c\u8f93\u5165\u4e3a\u4e00\u4e2a\u5b57\u7b26\u4e32\u548c\u5b57\u8282\u6570\uff0c\u8f93\u51fa\u4e3a\u6309\u5b57\u8282\u622a\u53d6\u7684\u5b57\u7b26\u4e32\u3002 \u4f46\u662f\u8981\u4fdd\u8bc1\u6c49\u5b57\u4e0d\u88ab\u622a\u534a\u4e2a\uff0c\u5982\u201c\u6211ABC\u201d4\uff0c\u5e94\u8be5\u622a\u4e3a\u201c\u6211AB\u201d\uff0c\u8f93\u5165\u201c\u6211ABC\u6c49DEF\u201d\uff0c6\uff0c\u5e94\u8be5\u8f93\u51fa\u4e3a\u201c\u6211… <\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_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":""},"categories":[28],"tags":[],"class_list":["post-14","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\/14","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=14"}],"version-history":[{"count":0,"href":"https:\/\/opgogo.com\/blog2\/index.php?rest_route=\/wp\/v2\/posts\/14\/revisions"}],"wp:attachment":[{"href":"https:\/\/opgogo.com\/blog2\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=14"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/opgogo.com\/blog2\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/opgogo.com\/blog2\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}