EJB\u65b9\u9762<\/p>\n
1\u3001EJB2.0\u6709\u54ea\u4e9b\u5185\u5bb9?\u5206\u522b\u7528\u5728\u4ec0\u4e48\u573a\u5408? EJB2.0\u548cEJB1.1\u7684\u533a\u522b?
\n\u7b54\uff1a\u89c4\u8303\u5185\u5bb9\u5305\u62ecBean\u63d0\u4f9b\u8005\uff0c\u5e94\u7528\u7a0b\u5e8f\u88c5\u914d\u8005\uff0cEJB\u5bb9\u5668\uff0cEJB\u914d\u7f6e\u5de5\u5177\uff0cEJB\u670d\u52a1\u63d0\u4f9b\u8005\uff0c\u7cfb\u7edf\u7ba1\u7406\u5458\u3002\u8fd9\u91cc\u9762\uff0cEJB\u5bb9\u5668\u662fEJB\u4e4b\u6240\u4ee5\u80fd\u591f\u8fd0\u884c\u7684\u6838\u5fc3\u3002EJB\u5bb9\u5668\u7ba1\u7406\u7740EJB\u7684\u521b\u5efa\uff0c\u64a4\u6d88\uff0c\u6fc0\u6d3b\uff0c\u53bb\u6d3b\uff0c\u4e0e\u6570\u636e\u5e93\u7684\u8fde\u63a5\u7b49\u7b49\u91cd\u8981\u7684\u6838\u5fc3\u5de5\u4f5c\u3002JSP,Servlet,EJB,JNDI,JDBC,JMS…..<\/p>\n
2\u3001EJB\u4e0eJAVA BEAN\u7684\u533a\u522b\uff1f
\n\u7b54:Java 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)\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\uff0cEJB\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
3\u3001EJB\u7684\u57fa\u672c\u67b6\u6784
\n\u7b54:\u4e00\u4e2aEJB\u5305\u62ec\u4e09\u4e2a\u90e8\u5206:
\nRemote Interface \u63a5\u53e3\u7684\u4ee3\u7801
\npackage Beans;
\nimport javax.ejb.EJBObject;
\nimport java.rmi.RemoteException;
\npublic interface Add extends EJBObject
\n{
\n\/\/some method declare
\n}
\nHome Interface \u63a5\u53e3\u7684\u4ee3\u7801
\npackage Beans;
\nimport java.rmi.RemoteException;
\nimport jaax.ejb.CreateException;
\nimport javax.ejb.EJBHome;
\npublic interface AddHome extends EJBHome
\n{
\n\/\/some method declare
\n}
\nEJB\u7c7b\u7684\u4ee3\u7801
\npackage Beans;
\nimport java.rmi.RemoteException;
\nimport javax.ejb.SessionBean;
\nimport javx.ejb.SessionContext;
\npublic class AddBean Implements SessionBean
\n{
\n\/\/some method declare
\n}<\/p>\n
J2EE,MVC\u65b9\u9762<\/p>\n
1\u3001MVC\u7684\u5404\u4e2a\u90e8\u5206\u90fd\u6709\u90a3\u4e9b\u6280\u672f\u6765\u5b9e\u73b0?\u5982\u4f55\u5b9e\u73b0?
\n\u7b54:MVC\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\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<\/p>\n
2\u3001\u5e94\u7528\u670d\u52a1\u5668\u4e0eWEB SERVER\u7684\u533a\u522b\uff1f
\n\u5e0c\u671b\u5927\u5bb6\u8865\u4e0a\uff0c\u8c22\u8c22<\/p>\n
3\u3001J2EE\u662f\u4ec0\u4e48\uff1f
\n\u7b54:Je22\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
4\u3001WEB SERVICE\u540d\u8bcd\u89e3\u91ca\u3002JSWDL\u5f00\u53d1\u5305\u7684\u4ecb\u7ecd\u3002JAXP\u3001JAXM\u7684\u89e3\u91ca\u3002SOAP\u3001UDDI,WSDL\u89e3\u91ca\u3002
\n\u7b54\uff1aWeb Service\u63cf\u8ff0\u8bed\u8a00WSDL
\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
5\u3001BS\u4e0eCS\u7684\u8054\u7cfb\u4e0e\u533a\u522b\u3002
\n\u5e0c\u671b\u5927\u5bb6\u8865\u4e0a\uff0c\u8c22\u8c22<\/p>\n
6\u3001STRUTS\u7684\u5e94\u7528(\u5982STRUTS\u67b6\u6784)
\n\u7b54\uff1aStruts\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
\n\u4e00.\u5305\u542b\u4e00\u4e2acontroller servlet\uff0c\u80fd\u5c06\u7528\u6237\u7684\u8bf7\u6c42\u53d1\u9001\u5230\u76f8\u5e94\u7684Action\u5bf9\u8c61\u3002
\n\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
\n\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
\u8bbe\u8ba1\u6a21\u5f0f\u65b9\u9762<\/p>\n
1\u3001\u5f00\u53d1\u4e2d\u90fd\u7528\u5230\u4e86\u90a3\u4e9b\u8bbe\u8ba1\u6a21\u5f0f?\u7528\u5728\u4ec0\u4e48\u573a\u5408?
\n\u7b54\uff1a\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
2\u3001UML\u65b9\u9762
\n\u7b54\uff1a\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,<\/p>\n
JavaScript\u65b9\u9762<\/p>\n
1\u3001\u5982\u4f55\u6821\u9a8c\u6570\u5b57\u578b?
\nvar re=\/^\\d{1,8}$|\\.\\d{1,2}$\/;
\nvar str=document.form1.all(i).value;
\nvar r=str.match(re);
\nif (r==null)
\n{
\nsign=-4;
\nbreak;
\n}
\nelse{
\ndocument.form1.all(i).value=parseFloat(str);
\n}<\/p>\n
CORBA\u65b9\u9762<\/p>\n
1\u3001CORBA\u662f\u4ec0\u4e48?\u7528\u9014\u662f\u4ec0\u4e48?
\n\u7b54\uff1aCORBA \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
\n\u7528\u4e0d\u540c\u7684\u7a0b\u5e8f\u8bbe\u8ba1\u8bed\u8a00\u4e66\u5199
\n\u5728\u4e0d\u540c\u7684\u8fdb\u7a0b\u4e2d\u8fd0\u884c
\n\u4e3a\u4e0d\u540c\u7684\u64cd\u4f5c\u7cfb\u7edf\u5f00\u53d1<\/p>\n
LINUX\u65b9\u9762<\/p>\n
1\u3001LINUX\u4e0b\u7ebf\u7a0b\uff0cGDI\u7c7b\u7684\u89e3\u91ca\u3002
\n\u7b54\uff1aLINUX\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","protected":false},"excerpt":{"rendered":"
EJB\u65b9\u9762 1\u3001EJB2.0\u6709\u54ea\u4e9b\u5185\u5bb9?\u5206\u522b\u7528\u5728\u4ec0\u4e48\u573a\u5408? EJB2.0\u548cEJB1.1\u7684\u533a\u522b? \u7b54\uff1a\u89c4\u8303\u5185\u5bb9\u5305\u62ecBean\u63d0\u4f9b\u8005\uff0c\u5e94\u7528\u7a0b\u5e8f\u88c5\u914d\u8005\uff0cEJB\u5bb9\u5668\uff0cEJB\u914d\u7f6e\u5de5\u5177\uff0cEJB\u670d\u52a1\u63d0\u4f9b\u8005\uff0c\u7cfb\u7edf\u7ba1\u7406\u5458… <\/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-12","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\/12","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=12"}],"version-history":[{"count":0,"href":"https:\/\/opgogo.com\/blog2\/index.php?rest_route=\/wp\/v2\/posts\/12\/revisions"}],"wp:attachment":[{"href":"https:\/\/opgogo.com\/blog2\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=12"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/opgogo.com\/blog2\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=12"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/opgogo.com\/blog2\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=12"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}