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  • js获取服务器时间

    var DD,MM,YY,hh,mm;
    if(document.all){
         window.XMLHttpRequest=function(){
             var get=['Microsoft.XMLHTTP','Msxml2.XMLHTTP'];
       for(var i=0;i<get.length;i++){try{return new ActiveXObject(get[i])}catch(e){}};
         };
     }
    window.time=new Date();
    targetTime=new Date();
    function webDate(fn){
      var Htime=new XMLHttpRequest();
      Htime.onreadystatechange=function(){Htime.readyState==4&&(fn(new Date(Htime.getResponseHeader('Date'))))};
      Htime.open('HEAD', '/?_='+(-new Date));
      Htime.send(null);
     }
    webDate(function (webTime){
       DD=webTime.getDate(),MM=webTime.getMonth()+1,YY=webTime.getFullYear(),hh=webTime.getHours();mm=webTime.getMinutes();
    })
    
    alert(YY+" "+MM+DD+" "+hh+mm)

    以下为原方法:

    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">  
    <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">  
    <head>  
    <meta http-equiv="Content-Type" content="text/html; charset=gbk"/>  
    <title>untitled</title>  
    <script type="text/javascript">  
        get=function (id){return document.getElementById(id)}  
        if(document.all){  
            window.XMLHttpRequest=function(){  
                var get=['Microsoft.XMLHTTP','Msxml2.XMLHTTP'];  
                for(var i=0;i<get.length;i++){try{return new ActiveXObject(get[i])}catch(e){}};  
            };  
        }  
        webDate=function(fn){  
            var Htime=new XMLHttpRequest();  
            Htime.onreadystatechange=function(){Htime.readyState==4&&(fn(new Date(Htime.getResponseHeader('Date'))))};  
            Htime.open('HEAD', '/?_='+(-new Date));  
            Htime.send(null);  
        }  
        window.time=new Date();  
        targetTime=new Date();  
        time2String=function (t){  
                with(t)return [getFullYear(),''  
                    ,('0'+(getMonth()+1)).slice(-2),''  
                    ,('0'+getDate()).slice(-2),''  
                    ,('0'+getHours()).slice(-2),': '  
                    ,('0'+getMinutes()).slice(-2),': '  
                    ,('0'+getSeconds()).slice(-2)].join('')  
        }  
        int2time=function (m){  
            m-=(D=parseInt(m/86400000))*86400000;  
            m-=(H=parseInt(m/3600000))*3600000;  
            S=parseInt((m-=(M=parseInt(m/60000))*60000)/1000);  
            return D+''+H+'小时'+M+''+S+''  
        }  
        setInterval(function (){  
            webDate(function (webTime){  
                get('web').innerHTML=time2String(time=webTime);  
            })  
            get('locale').innerHTML=time2String(new Date);  
            get('time').innerHTML=int2time(targetTime-time);  
            if ((targetTime-time)<0) {  
                get('time').innerHTML = 'Game Over';  
            }  
        },1000)  
     </script>      
    </head>  
    <body>  
    设定时间:2012年12月31日0时0分0秒<br>  
    服务器时间:<span id='web'>loading...</span><br>  
    本地时间:<span id="locale">loading...</span><br>  
    倒计时时间:<span id="time">loading...</span>  
    <script type="text/javascript" charset="utf-8">  
        targetTime=new Date(2012,12,31,00,00,00);  
    </script>  
    </body>  
    </html>  
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  • 原文地址:https://www.cnblogs.com/cssfirefly/p/2685220.html
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