weblogic连接数据源代码

<%@page contentType="text/html; charset=gb2312"%>
<%@page import="javax.naming.Context,javax.sql.DataSource,java.sql.*,javax.naming.InitialContext"%>
<%
DataSource ds=null;
try{
  Context initCtx=new InitialContext();
  ds=(javax.sql.DataSource)initCtx.lookup("myejb");
  if(ds!=null){
    out.println("已经获得数据源："+ds.toString()+"<p>");
    Connection con=ds.getConnection();
    Statement st=con.createStatement();
    ResultSet rs=st.executeQuery("select * from student");
    out.println("以下是从数据库中读取出来的数据:<br/>");
    while(rs.next()){
      out.println("bookName:"+rs.getString(1)+"<br/>");
    }
  }
  else{
    out.println("连接数据源失败!");
  }
}
catch(Exception e){
  out.println(e);
  e.printStackTrace();
}
%>