js获取本机内网IP地址和MAC地址

<!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">  
  <head>  
   <title>JS获取客户端MAC地址</title>  
   <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />  
   <meta name="generator" content="editplus" />  
   <meta name="author" content="" />  
   <meta name="keywords" content="" />  
   <meta name="description" content="" />  
   <style type="text/css">  
   </style>  
     <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);  
         }  
         function getIp()  
         {  
             document.getElementById('txtIp').value = unescape(IPAddr);  
         }  
     </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();" />  
     <input type="text" id="txtIp" />  
     <input type="button" id="btn" value="获取ip地址" onclick="getIp();" />  
  </body>  
 </html>  
原文地址:https://www.cnblogs.com/shcolo/p/3620533.html