js窗口关闭事件处理

<%@ page language="java" import="java.util.*" pageEncoding="gbk"%>
<%
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 'index.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 language=javascript>   
function window.onbeforeunload()   
{   
if(event.clientX>document.body.clientWidth&&event.clientY<0||event.altKey||event.ctrlKey)   
{   
     //判断event.altKey是为了Alt+F4关闭的情况;判断event.ctrlKey是为了Ctrl+W关闭的情况   
     alert('关闭');   
}   
else{   
     alert("刷新");   
}   
}   
</script>   
  </head>
  
  <body >
    This is my JSP page. <br>
  </body>
</html>

 

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