首先声明，此篇文章纯属标题党。今日QQ群里探讨用JS获取客户端mac地址的方法，众说纷纭，有说行有说不行的，闲着没事儿研究了一下，js确实可以获取到客户端当前电脑的mac地址，代码如下，但这段代码放到服务器上面貌似就不行了，会提示 locator.ConnectServer(); 错误，不支持此属性或方法。具体原因估计跟js的权限有关。想通过js获取客户端mac地址的朋友们还是想其他办法吧！
<html>
<head>
<title>JS获取客户端MAC地址</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="generator" content="editplus" />
<script event="OnObjectReady(objObject,objAsyncContext)" for="foo">
if(objObject.IPEnabled!=null&&objObject.IPEnabled!="undefined"&&objObject.IPEnabled == true){
if(objObject.MACAddress!=null&&objObject.MACAddress!="undefined"&&objObject.DNSServerSearchOrder!=null)
MACAddr=objObject.MACAddress;
if(objObject.IPEnabled&&objObject.IPAddress(0)!=null&&objObject.IPAddress(0)!="undefined"&&objObject.DNSServerSearchOrder!=null)
IPAddr=objObject.IPAddress(0);
if(objObject.DNSHostName!=null&&objObject.DNSHostName!="undefined")
sDNSName=objObject.DNSHostName;
}
</script>
<script type="text/javascript">
var MACAddr;
var IPAddr;
var DomainAddr;
var sDNSName;
function init(){
var service=locator.ConnectServer();
service.Security_.ImpersonationLevel=3;
service.InstancesOfAsync(foo,'Win32_NetworkAdapterConfiguration');
}
function getMac(){
document.getElementById('txtMac').value=unescape(MACAddr);
}
</script>
</head>
<body onLoad="init()">
<object id="locator" classid="CLSID:76A64158-CB41-11D1-8B02-00600806D9B6" VIEWASTEXT></object>
<object id="foo" classid="CLSID:75718C9A-F029-11d1-A1AC-00C04FB6C223"></object>
<input type="text" id="txtMac" />
<input type="button" id="btn" value="获取Mac地址" onClick="getMac()" />
</body>
</html>