C#实现socket通信

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这里简单介绍一下socket通信的过程:

server端:

(1)创建套接字socket:socket =new Socket (AddressFamily .InterNetwork ,SocketType .Stream ,ProtocolType.Tcp );

(2)绑定client端的IP和端口:

            IPEndPoint iep = new IPEndPoint(serverIP, 8000);//serverIP是客户端的IP
            socket.Bind(iep);   //绑定

(3)开始侦听:socket.Listen(5);   //开始侦听

(4)接受客户端的连接请求:Socket newsocket = socket.Accept();    //允许接入

(5)接收客户端发过来的信息:int rec = newsocket.Receive(byteMessage);

(6)如果接收到客户端的信息,则回复客户端:

                        bf = Encoding.Default.GetBytes("i have received client's message!");
                        newsocket.Send(bf);          //向客户端发送信息

client端:

(1)创建套接字socket: Socket socket=new Socket (AddressFamily .InterNetwork ,SocketType.Stream ,ProtocolType .Tcp );

(2)发送连接请求

            string port = "8000";
            IPAddress serverIP = GetServerIP();
            int serverPort = Convert.ToInt32(port);
            IPEndPoint iep = new IPEndPoint(serverIP, serverPort);
            socket .Connect (iep);  
//连接server

(3)发送信息到server:

            byteMessage =Encoding .Default .GetBytes ("hello,server,i am client1");
            socket .Send (byteMessage );

(4)接收服务器端反馈过来的信息

            int rec=socket .Receive (byteMessage );

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