通过JavaScript获得客户端的机器名

似乎是基于某些安全的因素,.Net并没有给出可以获得客户端机器信息的类及方法.所以,我们只能通过客户端的JavaScript代码来实现这一功能了,解决方案如下:

<html>
<head>
    <title>WMI Scripting HTML</title>
    <script FOR="foo" EVENT="OnCompleted(hResult,pErrorObject, pAsyncContext)" LANGUAGE="JScript">
         document.forms[0].txtMACAddr.value=unescape(MACAddr);
         document.forms[0].txtIPAddr.value=unescape(IPAddr);
         document.forms[0].txtDNSName.value=unescape(sDNSName);
    </script>

    <script FOR="foo" EVENT="OnObjectReady(objObject,objAsyncContext)" LANGUAGE="JScript">
        if(objObject.IPEnabled != null && objObject.IPEnabled != "undefined" && objObject.IPEnabled == true)
        {
            if(objObject.MACAddress != null && objObject.MACAddress != "undefined")
                MACAddr = objObject.MACAddress;

            if(objObject.IPEnabled && objObject.IPAddress(0) != null && objObject.IPAddress(0) != "undefined")
                IPAddr = objObject.IPAddress(0);

            if(objObject.DNSHostName != null && objObject.DNSHostName != "undefined")
                sDNSName = objObject.DNSHostName;
        }
    </script>

</head>
<body>
    <object classid="CLSID:76A64158-CB41-11D1-8B02-00600806D9B6" id="locator" VIEWASTEXT></object>
    <object classid="CLSID:75718C9A-F029-11d1-A1AC-00C04FB6C223" id="foo"></object>

    <script LANGUAGE="JScript">
        var service = locator.ConnectServer();
        var MACAddr ;
        var IPAddr ;
        var DomainAddr;
        var sDNSName;
        service.Security_.ImpersonationLevel=3;
        service.InstancesOfAsync(foo, 'Win32_NetworkAdapterConfiguration');
    </script>

    <form method="POST" action="NICPost.asp" id="formfoo" name="formbar">
        <input type="text"  name="txtMACAddr">
        <input type="text"  name="txtIPAddr">
        <input type="text"  name="txtDNSName">
    </form>
</body>
</html>
javascript
csharper -
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