<%@ 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>My JSP 'MyJsp.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">
-->
<script type="text/javascript">
var flag = false;
window.onbeforeunload = function(e) {
var evt = e ? e : (window.event ? window.event : null); //此方法专门兼容firefox的解决方案
if (!flag) {
//evt.returnValue = "离开会使编写的内容丢失。";
//evt.returnValue = destroysession();//这是可以使js函数
evt.returnValue = '1';
}
};
</script>
</head>
<body>
jack
</body>
</html>
原文地址：http://blog.csdn.net/responsecool/article/details/39344475
