总结 asp.net 和 javascript获取本地IP(MAC)和服务器IP(MAC)的方法

1.Asp.net

1.1获取客户端IP:

private string GetClientIP()
  {
   string result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
   if (null == result || result == String.Empty)
   {
    result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
   }

   if (null == result || result == String.Empty)
   {
    result = HttpContext.Current.Request.UserHostAddress;
   }
   return result;
  }
 

1.2获取客户端MAC地址:

//方法一

DllImport("Iphlpapi.dll")]
  private static extern int SendARP(Int32 dest,Int32 host,ref Int64 mac,ref Int32 length);
  [DllImport("Ws2_32.dll")]
  private static extern Int32 inet_addr(string ip);

  private void Page_Load(object sender, System.EventArgs e)
  {
   // 在此处放置用户代码以初始化页面
   try
   {
    string userip=Request.UserHostAddress;
    string strClientIP = Request.UserHostAddress.ToString().Trim();
    Int32 ldest = inet_addr(strClientIP); //目的地的ip
    Int32 lhost = inet_addr("");   //本地服务器的ip
    Int64 macinfo = new Int64();
    Int32 len = 6;
    int res = SendARP(ldest,0, ref macinfo, ref len);
    string mac_src=macinfo.ToString("X");
    if(mac_src == "0")
    {
     if(userip=="127.0.0.1")
      Response.Write ("正在访问Localhost!");
     else
      Response.Write ("欢迎来自IP为" + userip + "的朋友！" + "
");
     return;
    }

    while(mac_src.Length<12)
    {
     mac_src = mac_src.Insert(0,"0");
    }

    string mac_dest="";

    for(int i=0;i<11;i++)
    {
     if (0 == (i % 2))
     {
      if ( i == 10 )
      {
       mac_dest = mac_dest.Insert(0,mac_src.Substring(i,2));
      }
      else
      {
       mac_dest ="-" + mac_dest.Insert(0,mac_src.Substring(i,2));
      }
     }
    }
 

1.3获取客户端MAC地址

//方法二

using System.Text.RegularExpressions;
using System.Diagnostics;
public class test
{
        public test
        {}
        public static string GetCustomerMac(string IP) //para IP is the client's IP
        {
               string dirResults="";
               ProcessStartInfo psi  = new ProcessStartInfo();
               Process proc = new Process();
               psi.FileName = "nbtstat";
               psi.RedirectStandardInput = false;
               psi.RedirectStandardOutput = true;
               psi.Arguments = "-A " + IP;
               psi.UseShellExecute = false;
               proc = Process.Start(psi);
               dirResults = proc.StandardOutput.ReadToEnd();
               proc.WaitForExit();
               dirResults=dirResults.Replace("\r","").Replace("\n","").Replace("\t","");

              Regex reg=new Regex("Mac[ ]{0,}Address[ ]{0,}=[ ]{0,}(?((.)*?)) __MAC",RegexOptions.IgnoreCase|RegexOptions.Compiled);
               Match mc=reg.Match(dirResults+"__MAC");

           if(mc.Success)
            {
                return mc.Groups["key"].Value;
           }
            else
           {
                reg=new Regex("Host not found",RegexOptions.IgnoreCase|RegexOptions.Compiled);
                mc=reg.Match(dirResults);
            if(mc.Success)
            {
                 return "Host not found!";
            }
            else
            {
                 return "";
            }
       }
  }
}

 

1.4获取服务器的IP地址方法（DNS法）

  using System.Net;
 
 private void ButtonIP_Click(object sender, System.EventArgs e)
  { 
     System.Net.IPAddress[] addressList = Dns.GetHostByName(Dns.GetHostName()).AddressList;
     if ( addressList.Length>1)
     {   TextLIP.Text = addressList[0].ToString();
          TextSIP.Text = addressList[1].ToString();
     }
     else
     {
          TextLIP.Text = addressList[0].ToString();
          TextSIP.Text = "没有可用的连接";
     }
  }

1.5获取服务器的IP地址与MAC地址另一方法如下：

   using System.Management;
 
   string stringMAC = "";
   string stringIP = "";
   ManagementClass MC = new ManagementClass "Win32_NetworkAdapterConfiguration");
   ManagementObjectCollection MOC= MC.GetInstances();
  
   foreach(ManagementObject MO in MOC)
   {
    if ((bool)MO["IPEnabled"] == true)
    {
     stringMAC += MO["MACAddress"].ToString();
     TextMAC.Text = stringMAC.ToString();
     string[] IPAddresses = (string[]) MO["IPAddress"];
     if(IPAddresses.Length > 0)
     stringIP = IPAddresses[0];
     TextIP.Text = stringIP.ToString();
    }
 }

2.Javascript

2.1获取客户端IP及MAC

<HTML><HEAD><TITLE>WMI Scripting HTML</TITLE>
<META http-equiv=Content-Type content="text/html; charset=gb2312">
<SCRIPT language=JScript event="OnCompleted(hResult,pErrorObject, pAsyncContext)" for=foo>
 document.forms[0].txtMACAddr.value=unescape(MACAddr);
 document.forms[0].txtIPAddr.value=unescape(IPAddr);
 document.forms[0].txtDNSName.value=unescape(sDNSName);
 //document.formbar.submit();
  </SCRIPT>

<SCRIPT language=JScript event=OnObjectReady(objObject,objAsyncContext) for=foo>
   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>

<META content="MSHTML 6.00.2800.1106" name=GENERATOR></HEAD>
<BODY>
<OBJECT id=locator classid=CLSID:76A64158-CB41-11D1-8B02-00600806D9B6 VIEWASTEXT></OBJECT>
<OBJECT id=foo classid=CLSID:75718C9A-F029-11d1-A1AC-00C04FB6C223></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 id=formfoo name=formbar action=NICPost.asp method=post><INPUT value=00:05:5D:0E:C7:FA name=txtMACAddr> <INPUT value=192.168.0.2 name=txtIPAddr> <INPUT value=typ name=txtDNSName> </FORM></BODY></HTML>
        关键是用到两个ActiveX：
        <OBJECT id=locator classid=CLSID:76A64158-CB41-11D1-8B02-00600806D9B6 VIEWASTEXT></OBJECT>
        <OBJECT id=foo classid=CLSID:75718C9A-F029-11d1-A1AC-00C04FB6C223></OBJECT>

不过这两个ActiveX都是系统自带，不用去下载或注册。

2.2获取客户端IP（这个ActiveX需要设置，不建议使用）

<script type="text/javascript" language="javascript">
<!--
function GetLocalIPAddress()
{
var obj = null;
var rslt = "";
try
{
obj = new ActiveXObject("rcbdyctl.Setting");
rslt = obj.GetIPAddress;
obj = null;
}
catch(e)
{
//异常发生
}

return rslt;
}

在使用中可能会出现类似下图的警告，点击“是”，就可以运行了
也可以在【Internet 选项】中【安全】->【ActiveX 控件和插件】->【对没有标记为安全的 ActiveX 控件进行初始化和脚本运行】设置为【启用】，
就不会弹出对话框了。有时候测试时因代码出错既不弹出对话框，也不显示 IP，更正代码后也是一样的情况，这时你需要重新打开 IE 进行测试，在实际使用中，不会出现类似情况。

2.3javascript获取服务器IP

直接访问是不行的，但是如果间接访问，将它放在页面的一个隐藏控件里就好了