我正在运行一个服务器，我想显示我自己的IP地址。
获取计算机自身(如果可能的话，外部)IP地址的语法是什么?
有人编写了以下代码。
IPHostEntry host;
string localIP = "?";
host = Dns.GetHostEntry(Dns.GetHostName());
foreach (IPAddress ip in host.AddressList)
{
if (ip.AddressFamily.ToString() == "InterNetwork")
{
localIP = ip.ToString();
}
}
return localIP;
然而，我通常不信任作者，我不理解这段代码。有更好的方法吗?
当前回答
LINQ解决方案:
Dns.GetHostEntry(Dns.GetHostName()).AddressList.Where(ip => ip.AddressFamily == AddressFamily.InterNetwork).Select(ip => ip.ToString()).FirstOrDefault() ?? ""
其他回答
这是我解决它的方法。我知道如果你有几个物理接口，这可能不会选择你想要的确切的eth。
private string FetchIP()
{
//Get all IP registered
List<string> IPList = new List<string>();
IPHostEntry host;
host = Dns.GetHostEntry(Dns.GetHostName());
foreach (IPAddress ip in host.AddressList)
{
if (ip.AddressFamily == AddressFamily.InterNetwork)
{
IPList.Add(ip.ToString());
}
}
//Find the first IP which is not only local
foreach (string a in IPList)
{
Ping p = new Ping();
string[] b = a.Split('.');
string ip2 = b[0] + "." + b[1] + "." + b[2] + ".1";
PingReply t = p.Send(ip2);
p.Dispose();
if (t.Status == IPStatus.Success && ip2 != a)
{
return a;
}
}
return null;
}
private static string GetLocalIpAdresse()
{
var host = Dns.GetHostEntry(Dns.GetHostName());
foreach(var ip in host.AddressList)
{
if (ip.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork)
{
return ip.ToString();
}
}
throw new Exception ("No network adapters with an IPv4 address in the system");
}
using System;
using System.Net;
namespace IPADDRESS
{
class Program
{
static void Main(string[] args)
{
String strHostName = string.Empty;
if (args.Length == 0)
{
/* First get the host name of local machine.*/
strHostName = Dns.GetHostName();
Console.WriteLine("Local Machine's Host Name: " + strHostName);
}
else
{
strHostName = args[0];
}
/* Then using host name, get the IP address list..*/
IPHostEntry ipEntry = Dns.GetHostByName(strHostName);
IPAddress[] addr = ipEntry.AddressList;
for (int i = 0; i < addr.Length; i++)
{
Console.WriteLine("IP Address {0}: {1} ", i, addr[i].ToString());
}
Console.ReadLine();
}
}
}
这个问题没有说ASP。NET MVC，但我还是把这个留在这里:
Request.UserHostAddress
using System.Net;
string host = Dns.GetHostName();
IPHostEntry ip = Dns.GetHostEntry(host);
Console.WriteLine(ip.AddressList[0].ToString());
刚在我的机器上测试过了，还能用。
