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>?