基于JavaScript判断浏览器到底是关闭还是刷新(超准确)_javascript技巧

window.onbeforeunload = function() //author: meizz 
{ 
var n = window.event.screenX - window.screenLeft; 
var b = n > document.documentElement.scrollWidth-20; 
if(b && window.event.clientY < 0 || window.event.altKey) 
{ 
alert("是关闭而非刷新"); 
window.event.returnValue = ""; //这里可以放置你想做的操作代码 
}else
{ 
alert("是刷新而非关闭"); 
} 
} 
window.onbeforeunload = function() //author: meizz 
{ 
var n = window.event.screenX - window.screenLeft; 
var b = n > document.documentElement.scrollWidth-20; 
if(b && window.event.clientY < 0 || window.event.altKey) 
{ 
alert("是关闭而非刷新"); 
window.event.returnValue = ""; //这里可以放置你想做的操作代码 
}else
{ 
alert("是刷新而非关闭"); 
} 
}

function CloseOpen(event) {
if(event.clientX<=0 && event.clientY<0) {
alert("关闭");
}
else
{
alert("刷新或离开");
}
}

var _beforeUnload_time = 0, _gap_time = 0;
var is_fireFox = navigator.userAgent.indexOf("Firefox")>-1;//是否是火狐浏览器
window.onunload = function (){
_gap_time = new Date().getTime() - _beforeUnload_time;
if(_gap_time <= 5) 
$.post(pathName+"/back/bi!aaaa.s2?t="+_beforeUnload_time,{msg:"浏览器关闭",time:_gap_time},function(json){},"text");
else 
$.post(pathName+"/back/bi!aaaa.s2?t="+_beforeUnload_time,{msg:"浏览器刷新",time:_gap_time},function(json){},"text");
}
window.onbeforeunload = function (){
_beforeUnload_time = new Date().getTime();
if(is_fireFox)//火狐关闭执行
$.post(pathName+"/back/bi!aaaa.s2?t="+_beforeUnload_time,{msg:"火狐关闭"},function(json){},"text");
};

public void aaaa(){
System.out.println(base.getParameter("msg")+"，间隔："+base.getParameter("time"));
}

//鼠标相对于用户屏幕的水平位置 - 窗口左上角相对于屏幕左上角的水平位置 = 鼠标在当前窗口上的水平位置
var n = window.event.screenX - window.screenLeft;
//鼠标在当前窗口内时，nm，b为true。20这个值是指关闭按钮的宽度
var b = n > document.documentElement.scrollWidth-20;
//鼠标在客户区内时，window.event.clientY>0；鼠标在客户区外时，window.event.clientY<0
if(b && window.event.clientY < 0 || window.event.altKey || window.event.ctrlKey){
关闭浏览器时你想做的事
}else if(event.clientY > document.body.clientHeight || event.altKey){
关闭浏览器时你想做的事
}