C#获取本机IP搜集整理7种方法

①

 1 private void GetIP()
 2 {
 3     string hostName = Dns.GetHostName();//本机名
 4     //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
 5     System.Net.IPAddress[] addressList = Dns.GetHostAddresses(hostName);//会返回所有地址，包括IPv4和IPv6
 6     foreach (IPAddress ip in addressList)
 7     {
 8         listBox1.Items.Add(ip.ToString());
 9     }
10 }  

②使用IPHostEntry获取本机局域网地址

1         static string GetLocalIp()
2         {
3             string hostname = Dns.GetHostName();//得到本机名
4             //IPHostEntry localhost = Dns.GetHostByName(hostname);//方法已过期，只得到IPv4的地址
5 <SPAN style="WHITE-SPACE: pre"> </SPAN>    IPHostEntry localhost = Dns.GetHostEntry(hostname);
6             IPAddress localaddr = localhost.AddressList[0];
7             return localaddr.ToString();
8         }  

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

 1        string strUrl = "提供IP查询的网站的链接";
 2        Uri uri = new Uri(strUrl);
 3        WebRequest webreq = WebRequest.Create(uri);
 4        Stream s = webreq .GetResponse().GetResponseStream();
 5        StreamReader sr = new StreamReader(s, Encoding.Default);
 6        string all = sr.ReadToEnd();
 7        int i = all.IndexOf("[") + 1;
 8        //分析字符串得到IP
 9        return ip;
10        /*
11         我用的是http://www.ip.cn/getip.php?action=getip&ip_url=&from=web
12         (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)
13         返回的数据是：
14         <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>
15         解析这段就行
16       */  

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

 1 private void GetIP2()
 2         {
 3             string stringMAC = "";
 4             string stringIP = "";
 5             ManagementClass managementClass = new ManagementClass("Win32_NetworkAdapterConfiguration");
 6             ManagementObjectCollection managementObjectCollection = managementClass.GetInstances();
 7             foreach(ManagementObject managementObject in managementObjectCollection)
 8             {
 9                 if ((bool)managementObject["IPEnabled"] == true)
10                 {
11                     stringMAC += managementObject["MACAddress"].ToString();
12                     string[] IPAddresses = (string[])managementObject["IPAddress"];
13                     if (IPAddresses.Length > 0)
14                     {
15                         stringIP = IPAddresses[0];
16                     }
17                 }
18             }
19             txtMAC.Text = stringMAC.ToString();
20             txtIP.Text = stringIP.ToString();
21         }  

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

 1    private void GetIP6()
 2    {
 3        Process cmd = new Process();
 4        cmd.StartInfo.FileName = "ipconfig.exe";//设置程序名
 5        cmd.StartInfo.Arguments = "/all";  //参数
 6 //重定向标准输出
 7        cmd.StartInfo.RedirectStandardOutput = true;
 8        cmd.StartInfo.RedirectStandardInput = true;
 9        cmd.StartInfo.UseShellExecute = false;
10        cmd.StartInfo.CreateNoWindow = true;//不显示窗口（控制台程序是黑屏）
11 //cmd.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;//暂时不明白什么意思
12        /*
13 收集一下 有备无患
14        关于:ProcessWindowStyle.Hidden隐藏后如何再显示？
15        hwndWin32Host = Win32Native.FindWindow(null, win32Exinfo.windowsName);
16        Win32Native.ShowWindow(hwndWin32Host, 1);     //先FindWindow找到窗口后再ShowWindow
17        */
18        cmd.Start();
19        string info = cmd.StandardOutput.ReadToEnd();
20        cmd.WaitForExit();
21        cmd.Close();
22        textBox1.AppendText(info);
23    }  

⑦NetworkInformation

 1 private void GetIP5()
 2        {
 3     //需要的命名空间
 4            //using System.Net.NetworkInformation;
 5            //using System.Net.Sockets;
 6            string str = "";
 7            NetworkInterface[] adapters = NetworkInterface.GetAllNetworkInterfaces();
 8            int i = 0;
 9            foreach (NetworkInterface adapter in adapters)
10            {
11
12                IPInterfaceProperties adapterProperties = adapter.GetIPProperties();
13                UnicastIPAddressInformationCollection allAddress =
14                                                                                        adapterProperties.UnicastAddresses;
15                if (allAddress.Count > 0)
16                {
17                    str += "interface   " + i + "description:\n\t " + adapter.Description + "\n ";
18                    i++;
19                    foreach (UnicastIPAddressInformation addr in allAddress)
20                    {
21                        if (addr.Address.AddressFamily == AddressFamily.InterNetworkV6)
22                        {
23                            ipListComb.Items.Add(addr.Address);
24                        }
25                        if (addr.Address.AddressFamily == AddressFamily.InterNetwork)
26                        {
27                            comboBox1.Items.Add(addr.Address);
28                        }
29
30                    }
31                }
32            }
33            MessageBox.Show(str);
34        }