<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>自动分配最优线路</title>
<meta name="viewport" content="width=device-width,initial-scale=1">
<style type="text/css">
#loadingwrapper .loading-mask{background:#080915;position:fixed;z-index:1000;top:0;right:0;left:0;bottom:0;}
#loadingwrapper .loading-box-s{position:absolute;top:50%;left:50%;z-index:5000;text-align:center;width:100%;transform:translate(-50%, -50%);background:#080915;border-radius:5px; }
#loadingwrapper .loader-cicle{position:relative;width:50px;height:50px;margin-top:15px;margin-bottom:15px;border-radius:50%;display:inline-block;vertical-align:middle;border:7px double #bd5837;-webkit-animation:ball-turn 1s linear infinite;animation:ball-turn 1s linear infinite;}
#loadingwrapper .loading-text{color: #c3c3c3;}
#loadingwrapper .loader-cicle::before{content: "";position:absolute;width:10px;height:10px;background:#bd5837;border-radius:50%;bottom:0;right:30px;}
#loadingwrapper .loader-cicle::after{content: "";position:absolute;width:10px;height:10px;background:#bd5837;border-radius:50%;left:30px;top:0;}
@keyframes ball-turn{0%{-webkit-transform:rotate(0deg);transform:rotate(0deg);}100%{-webkit-transform:rotate(360deg);transform:rotate(360deg);}}
</style>
</head>
<body>
<div id="loadingwrapper">
<div class="loading-mask"></div>
<div class="loading-box-s">
<div class="loader-cicle"></div>
<p class="loading-text">正在为您选择最佳线路，请稍后.....</p>
</div>
</div>
<script type="text/javascript">
let ips = [
'192.168.12.1',
'192.168.12.2',
'192.168.12.3',
'192.168.12.4',
'192.168.12.5',
];//线路地址
let source = '静态请求资源
let arr = [];
for(let ip of ips){
arr.push(
new Promise(function(resolve, reject) {
let startTime, endTime, fileSize;
let xhr = new XMLHttpRequest();
xhr.onreadystatechange = () => {
if(xhr.readyState === 2){
startTime = Date.now();
}
if (xhr.readyState === 4 && xhr.status === 200) {
endTime = Date.now();
fileSize = xhr.responseText.length;
setTimeout(resolve, endTime-startTime, ip);
}
}
xhr.open("GET", source, true);
xhr.send();
})
);
}
Promise.race(arr).then(function(value) {
console.log(value);
location.href= value; //跳转最优线路
});
</script>
</body>
</html>
