C#裡擷取用戶端IP,連接埠號碼的簡單樣本

using System;
using System.Collections.Generic;
using System.Text;
using System.Net;//為了IPEndPoint而添加的引用
using System.Net.Sockets;

namespace GetClntIP
{
    class Program
    {
        static void Main(string[] args)
        {
            TcpListener tcpListener = new TcpListener(9000);//監聽的連接埠號碼，可根據需要修改
            tcpListener.Start();

            //loop for listen
            while (true)
            {
                Socket sock = tcpListener.AcceptSocket();

                //伺服器目前時間
                DateTime connTime = DateTime.Now;
                Console.WriteLine("The time is :"+connTime.ToString());

                System.Net.IPAddress ipAdd;
                int port;

                //獲得串連目前使用者的IP以及連接埠號碼
                ipAdd = (sock.RemoteEndPoint as IPEndPoint).Address;
                port = (sock.RemoteEndPoint as IPEndPoint).Port;

                Console.WriteLine("The client IP :"+ipAdd.ToString ());
                Console.WriteLine("The client port :" + port.ToString());
            }

            tcpListener.Stop();
        }
    }
}

 

[附]擷取本地IP：

//獲得本地區域網路IP地址

IPAddress [] AddressList=Dns.GetHostByName(Dns.GetHostName()).AddressList;

if(AddressList.Length<1)

{

       retern "";

}

retern AddressList[0].ToString();//注意這裡數組參數為0

 

//獲得撥號動態分配IP地址

IPAdress [] AddressList=Dns.GetHostByName(Dns.GetHostName()).AddressList;

if(AddressList.Length<2)

{

        return "";

}

return AddressList[1].ToString();//注意這裡數組參數為1