[导入]【原】C#里获取客户端IP,端口号的简单示例

using System;
using System.Collections.Generic;
using System.Text;
using System.Net;//为了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);//监听的端口号，可根据需要修改
tcpListener.Start();

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

//服务器当前时间
DateTime connTime = DateTime.Now;
Console.WriteLine("The time is :"+connTime.ToString());

System.Net.IPAddress ipAdd;
int port;

//获得连接当前用户的IP以及端口号
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]获取本地IP：

//获得本地局域网IP地址

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

if(AddressList.Length<1)

{

retern "";

}

retern AddressList[0].ToString();//注意这里数组参数为0

//获得拨号动态分配IP地址

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

if(AddressList.Length<2)

{

return "";

}

return AddressList[1].ToString();//注意这里数组参数为1

文章来源:http://meymz.blog.163.com/blog/static/381209212007711021129