获取mac

最新推荐文章于 2025-12-30 09:11:37 发布

原创最新推荐文章于 2025-12-30 09:11:37 发布 · 409 阅读

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#string #exception #object #服务器

本文提供两种方法来获取客户端的MAC地址：一种是通过Win32网络适配器配置接口遍历所有启用的网络适配器来获取；另一种是利用Iphlpapi.dll库中的SendARP函数结合WS2_32.dll库的inet_addr函数来实现。

  cs       // 获取MAC地址
      public static string GetNetCardMacAddress()
        {
            ManagementClass mc;
            ManagementObjectCollection moc;
            mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
            moc = mc.GetInstances();
            string str = "";
            foreach (ManagementObject mo in moc)
            {
                if ((bool)mo["IPEnabled"] == true)
                    str = mo["MacAddress"].ToString();

            }
            return str;
        }

[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);
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    // 获取mac地址
    private string GetMac()
    {
        string mac_dest = "";
        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");
            while (mac_src.Length < 12)
            {
                mac_src = mac_src.Insert(0, "0");
            }
            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));
                    }
                }
            }
        }
        catch (Exception err)
        {
            Comm.Alert(this, "信息传输失败dz");
            mac_dest = "";
        }
        return mac_dest;
    }