在Web应用中使用XML文件配置数据源
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<%@ page language="java" import="java.util.*" %>
<%@ page language="java" import="java.sql.*" %>
<%@ page language="java" import="javax.sql.*" %>
<%@ page import ="zy.pro.wd.listener.MSSQLDataSourceListener"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'mssqlDataSourceDemo.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
This is my JSP page. <br>
<%
Context ctx=new InitialContext();
DataSource ds=(DataSource)ctx.lookup(MSSQLDataSourceListener.JNDI_NAME);
Connection con=ds.getConnection();
out.println(con);
%>
</body>
</html>
（2） 测试Oracle数据源的JSP页面为oracleDataSourceDemo.jsp,代码如下：
<%@ page language="java" import="javax.naming.*" %>
<%@ page language="java" import="java.util.*" %>
<%@ page language="java" import="java.sql.*" %>
<%@ page language="java" import="javax.sql.*" %>
<%@ page language="java" import="zy.pro.wd.listener.OracleDataSourceListener" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
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