[转]C#获取本机IP搜集整理7种方法

①

private void GetIP()  
{  
    string hostName = Dns.GetHostName();//本机名   
    //System.Net.IPAddress[] addressList = Dns.GetHostByName(hostName).AddressList;//会警告GetHostByName()已过期，我运行时且只返回了一个IPv4的地址   
    System.Net.IPAddress[] addressList = Dns.GetHostAddresses(hostName);//会返回所有地址，包括IPv4和IPv6   
    foreach (IPAddress ip in addressList)  
    {  
        listBox1.Items.Add(ip.ToString());  
    }  
}  

②使用IPHostEntry获取本机局域网地址

        static string GetLocalIp()  
        {  
            string hostname = Dns.GetHostName();//得到本机名   
            //IPHostEntry localhost = Dns.GetHostByName(hostname);//方法已过期，只得到IPv4的地址   
<SPAN style="WHITE-SPACE: pre"> </SPAN>    IPHostEntry localhost = Dns.GetHostEntry(hostname);  
            IPAddress localaddr = localhost.AddressList[0];  
            return localaddr.ToString();  
        }  

③获取本机网络ip地址

 方法时通过向网站向一些提供IP查询的网站发送webrequest，然后分析返回的数据流 

       string strUrl = "提供IP查询的网站的链接";  
       Uri uri = new Uri(strUrl);  
       WebRequest webreq = WebRequest.Create(uri);  
       Stream s = webreq .GetResponse().GetResponseStream();  
       StreamReader sr = new StreamReader(s, Encoding.Default);  
       string all = sr.ReadToEnd();   
       int i = all.IndexOf("[") + 1;  
       //分析字符串得到IP   
       return ip;  
       /* 
        我用的是http://www.ip.cn/getip.php?action=getip&ip_url=&from=web    
        (这种链接很容易找的，百度“IP”得到一些网站，分析一下网站的链接就能得到) 
        返回的数据是：  
        <div class="well"><p>当前 IP：<code>0.0.0.0</code>&nbsp;来自：XX省XX市 电信</p><p>GeoIP: Beijing, China</p></div>  
        解析这段就行  
      */  

④//由于用到了ManagementClass、ManagementObjectCollection；必须添加引用System.Management.dll及using System.Management;

private void GetIP2()  
        {  
            string stringMAC = "";  
            string stringIP = "";  
            ManagementClass managementClass = new ManagementClass("Win32_NetworkAdapterConfiguration");  
            ManagementObjectCollection managementObjectCollection = managementClass.GetInstances();  
            foreach(ManagementObject managementObject in managementObjectCollection)  
            {  
                if ((bool)managementObject["IPEnabled"] == true)  
                {  
                    stringMAC += managementObject["MACAddress"].ToString();  
                    string[] IPAddresses = (string[])managementObject["IPAddress"];  
                    if (IPAddresses.Length > 0)  
                    {  
                        stringIP = IPAddresses[0];   
                    }  
                }  
            }  
            txtMAC.Text = stringMAC.ToString();  
            txtIP.Text = stringIP.ToString();  
        }  

⑤调用一个网站提供的Web服务来查询IP网址：http://www.webxml.com.cn/zh_cn/web_services.aspx服务：http://webservice.webxml.com.cn/WebServices/IpAddressSearchWebService.asmx
弄了好半天，但是没学会怎样调用Web Service，按照搜到的页面做也不行，遂先放弃吧.....毕竟还未接触到WebService，改天把WebService搞定再来一定就容易了（留待以后完善吧）

⑥通过获取CMD里ipconfig命令的结果来得到IP     

   private void GetIP6()  
   {  
       Process cmd = new Process();  
       cmd.StartInfo.FileName = "ipconfig.exe";//设置程序名   
       cmd.StartInfo.Arguments = "/all";  //参数   
//重定向标准输出   
       cmd.StartInfo.RedirectStandardOutput = true;  
       cmd.StartInfo.RedirectStandardInput = true;  
       cmd.StartInfo.UseShellExecute = false;  
       cmd.StartInfo.CreateNoWindow = true;//不显示窗口（控制台程序是黑屏）   
//cmd.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;//暂时不明白什么意思   
       /* 
收集一下 有备无患 
       关于:ProcessWindowStyle.Hidden隐藏后如何再显示？ 
       hwndWin32Host = Win32Native.FindWindow(null, win32Exinfo.windowsName); 
       Win32Native.ShowWindow(hwndWin32Host, 1);     //先FindWindow找到窗口后再ShowWindow 
       */  
       cmd.Start();  
       string info = cmd.StandardOutput.ReadToEnd();  
       cmd.WaitForExit();  
       cmd.Close();  
       textBox1.AppendText(info);  
   }  

⑦NetworkInformation 

private void GetIP5()  
       {  
    //需要的命名空间   
           //using System.Net.NetworkInformation;   
           //using System.Net.Sockets;   
           string str = "";  
           NetworkInterface[] adapters = NetworkInterface.GetAllNetworkInterfaces();  
           int i = 0;  
           foreach (NetworkInterface adapter in adapters)  
           {  
  
               IPInterfaceProperties adapterProperties = adapter.GetIPProperties();  
               UnicastIPAddressInformationCollection allAddress =  
                                                                                       adapterProperties.UnicastAddresses;  
               if (allAddress.Count > 0)  
               {  
                   str += "interface   " + i + "description:\n\t " + adapter.Description + "\n ";  
                   i++;  
                   foreach (UnicastIPAddressInformation addr in allAddress)  
                   {  
                       if (addr.Address.AddressFamily == AddressFamily.InterNetworkV6)  
                       {  
                           ipListComb.Items.Add(addr.Address);  
                       }  
                       if (addr.Address.AddressFamily == AddressFamily.InterNetwork)  
                       {  
                           comboBox1.Items.Add(addr.Address);  
                       }  
  
                   }  
               }  
           }  
           MessageBox.Show(str);  
       }