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標題: Weblogic下使用jsp查詢的Entity Bean [打印本頁]
作者: linesky    時間: 2011-04-15 00:09
標題: Weblogic下使用jsp查詢的Entity Bean
  1. <%@ page contentType="text/html; charset=GBK" %>
  2. <%@ page import="baisha.*"%>
  3. <%@ page import="javax.naming.*"%>
  4. <%!
  5.   private javax.naming.Context getInitialContext() throws Exception {
  6.     String url = "t3://localhost:7001";
  7.     String user = null;
  8.     String password = null;
  9.     Properties properties = null;
  10.     try {
  11.       properties = new Properties();
  12.       properties.put(Context.INITIAL_CONTEXT_FACTORY, "weblogic.jndi.WLInitialContextFactory");
  13.       properties.put(Context.PROVIDER_URL, url);
  14.       if (user != null) {
  15.         properties.put(Context.SECURITY_PRINCIPAL, user);
  16.         properties.put(Context.SECURITY_CREDENTIALS, password == null ? "" : password);
  17.       }

  19.       return new InitialContext(properties);
  20.     }
  21.     catch(Exception e) {
  22.       System.out.println(e.getMessage());
  23.       return null;
  24.     }
  25.   }

  27. %>
  28. <html>
  29. <head>
  30. <title>
  31. Jsp1
  32. </title>
  33. </head>
  34. <body>
  35. <%
  36. //Properties env =new Properties();
  37. // env.put(Context.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.WLInitialContextFactory");
  38. // env.put(Context.INITIAL_CONTEXT_FACTORY,"t3://localhost:7001");
  39. //Context ctx = new InitialContext(env);
  40. String str_id=null;
  41. str_id =request.getParameter("id");
  42. javax.naming.Context ctx = new javax.naming.InitialContext();
  43. Object ref = ctx.lookup("Province");
  44. baisha.ProvinceHome provHome =null;
  45. baisha.Province prov = null;
  46. provHome = (baisha.ProvinceHome)javax.rmi.PortableRemoteObject.narrow(ref,ProvinceHome.class);
  47. if (provHome==null) {
  48.    out.println("provHome is null");
  49. }
  50. else
  51.     {
  52.     if (str_id==null){
  53.    
  54.     }
  55.     else{
  56.       try{
  57.         prov = provHome.findByPrimaryKey(new Integer(str_id));
  58.         out.println(prov.getProvinceName());
  59.         }
  60.       catch(Exception e){
  61.        out.println("ID 不存在！");
  62.       }  
  63.     }
  64.     }
  65.   
  66.      
  67. %>
  68. <h1>
  69. JBuilder Generated JSP
  70. </h1>
  71. <form method="post" action="query.jsp">
  72. <br>Enter new value   :  <input name="id"  type="text"><br>
  73. <br><br>
  74. <input type="submit" name="Submit" value="Submit">
  75. <input type="reset" value="Reset">
  76. <br>

  78. </form>
  79. </body>
  80. </html>
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