[代码]--c#-实现局域网聊天

服务器端：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading;

namespace ConsoleApplication1
{
    class Program
    {
        private static byte[] result = new byte[1024];
        private static int myProt = 8885;//端口
        static Socket serverSocket;



        static void Main(string[] args)
        {
            //服务器IP地址
            IPAddress ip = IPAddress.Parse("127.0.0.1");
            serverSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); ;
            serverSocket.Bind(new IPEndPoint(ip, myProt));//绑定IP地址：端口 
            serverSocket.Listen(10);//设定最多10个排队连接请求  
            Console.WriteLine("启动监听{0}成功", serverSocket.LocalEndPoint.ToString());

            //通过clientsocket发送数据
            Thread myThread = new Thread(ListenClientConnect);
            myThread.Start();
            Console.ReadLine();

        }

        //监听客户端连接  
        private static void ListenClientConnect()
        {
            while (true)
            {
                Socket clientsocket = serverSocket.Accept();
                clientsocket.Send(Encoding.ASCII.GetBytes("server say hello"));
                Thread receiveThread = new Thread(ReceiveMessage);
                receiveThread.Start(clientsocket);
            }
        }

        //接收消息
        private static void ReceiveMessage(object clientSocket)
        {
            Socket myClientSocket = (Socket)clientSocket;
            while (true)
            {
                try
                {
                    //通过clientsocket接收数据
                    int num = myClientSocket.Receive(result);
                    Console.WriteLine("李明：{1}", myClientSocket.RemoteEndPoint.ToString(), UTF8Encoding.UTF8.GetString(result, 0, num));

                }
                catch (Exception ex)
                {
                    Console.WriteLine(ex.Message);
                    myClientSocket.Shutdown(SocketShutdown.Both);
                    myClientSocket.Close();
                    break;
                }
            }
        }
    }
}

客户端：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading;

namespace ConsoleApplication2
{
    class Program
    {
        private static byte[] result = new byte[1024];
        static void Main(string[] args)
        {
            //绑定服务器IP地址
            IPAddress ip = IPAddress.Parse("127.0.0.1");
            Socket clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

            try
            {
                clientSocket.Connect(new IPEndPoint(ip, 8885));
                Console.WriteLine("连接服务器成功");

            }
            catch
            {
                Console.WriteLine("连接服务器失败，请按回车键退出");
                return;
            }

            //通过clientSocket接受数据
            int num = clientSocket.Receive(result);
            Console.WriteLine("接收服务器消息：{0}", Encoding.ASCII.GetString(result, 0, num));


            //通过 clientSocket 发送数据    

            try
            {
                string userCommand = "";
                while (userCommand != "exit")
                {
                    Thread.Sleep(1000);    //等待1秒钟    
                    Console.Write("韩梅梅：");
                    var sendMessage = Console.ReadLine();
                    byte[] byteData = UTF8Encoding.UTF8.GetBytes(sendMessage);
                    clientSocket.Send(byteData);
                }

            }
            catch
            {
                clientSocket.Shutdown(SocketShutdown.Both);
                clientSocket.Close();
            }
            Console.ReadLine();

        }
    }
}

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