<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
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>ExtJs提示框学习</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">
<!-- 引入样式文件 -->
<link rel="stylesheet" style="text/css" href="extjs-4.1.1/resources/css/ext-all.css"></link>
<!-- 引入主要文件 -->
<script type="text/javascript" src="extjs-4.1.1/ext-all.js"></script>
<!-- <script type="text/javascript" src="extjs-4.1.1/locale/ext-lang-zh_CN.js"></script> -->
<!-- 引入自己的js文件 -->
<script type="text/javascript" src="stu/msg.js"></script>
</head>
<body>
</body>
</html>
原文：http://blog.csdn.net/responsecool/article/details/40950583