Server端配置 參考代碼

1）設置基本參數

/// <summary>
///以本機作測試 
/// </summary>
private IPAddress serverIP = IPAddress.Parse("192.168.0.105");
/// <summary>
///完整終端地址 
/// </summary>
private IPEndPoint serverFullAddr;
/// <summary>
/// 連接套接字
/// </summary>
private Socket sock;

2）啟動服務器端

serverIP = IPAddress.Parse(tbxIP.Text);
            
 
try
            {
                //設置IP和端口
                serverFullAddr = new IPEndPoint(serverIP, int.Parse(tbxPort.Text));
                sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                //指定本地主機地址和端口號
                sock.Connect(serverFullAddr);
                btnConn.Enabled 
 
= false;
                MessageBox.Show("連接成功");
                btnClose.Enabled = true;
                sock.Close();

            }
            catch (Exception ee)
            {

 　　　　　　　　　　MessageBox.Show("連接失敗"+ee.ToString());

 　　　　　　}

3）停止服務端

 sock.Close();//關閉Socket連接

Client端 參考代碼

1）設置基本參數

  ///
 
 <summary>
        /// 以本機作測試,IP
        /// </summary>
        private IPAddress serverIP = IPAddress.Parse("127.0.0.1");


        /// <summary>
        /// 完整終端地址
        /// </summary>
        private IPEndPoint serverFullAddr;
        /// <summary>
        /// 連接套接字
        /// </summary>
        private Socket sock;
        /// <summary>
        /// 監聽線程
        /// </summary>
        Thread myThead = null;

2）啟動服務器

  myThead = new Thread(new ThreadStart(BeginListen));
            myThead.Start();
            btnStart.Enabled = false;
            btnstop.Enabled = true;

3）設置偵聽

  /// <summary>
        /// 設置監聽
        /// </summary>
        private void BeginListen()
        {
            //IP
            serverIP = IPAddress.Parse(tbxIP.Text);
            //設置IP，端口
            serverFullAddr = new IPEndPoint(serverIP, int.Parse(tbxPort.Text));
            sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

            //指定本地主機地址和端口號
            sock.Bind(serverFullAddr);
            lbxMessage.Invoke(new SetTextCallback(SetText), "啟動成功 時間:" + DateTime.Now, 1);
            byte[] message = new byte[1024];
            string mess = "";
            while (true)
            {
                try
                {
                    sock.Listen(5);//設置監聽頻率
                    Socket newSocket = sock.Accept();//阻塞方式
                    int bytes = newSocket.Receive(message);//接收數據
                    mess = Encoding.Default.GetString(message, 0, bytes);//對接收字節編碼（S與C 兩端編碼格式必須一致不然中文亂碼）（當接收的字節大於1024的時候 這應該是循環接收，測試就沒有那樣寫了）
                    //do
                    //{
                    //    bytes = newSocket.Receive(message, message.Length, 0);
                    //    mess = mess + Encoding.ASCII.GetString(message, 0, bytes);
                    //}
                    //while (bytes > 0);

                    lbxMessage.Invoke(new SetTextCallback(SetText), mess, 1);//子線程操作主線程UI控件


                    //獲取客戶端的IP和端口
                    string ip11 = newSocket.RemoteEndPoint.AddressFamily.ToString();
                    
                    mess = "已接收數據： "+ mess +" 來自：" +ip11+ " 當前時間為：" + DateTime.Now; //處理數據
                    newSocket.Send(Encoding.Default.GetBytes(mess));//向客戶端發送數據

                }
                catch (SocketException se)
                {
                    lbxMessage.Invoke(new SetTextCallback(SetText), mess + se, 1);

                }
            }
        }

4）生命委托

   delegate void SetTextCallback(string text, int num);
        private void SetText(string text, int num)
        {
            lbxMessage.Items.Add(text);
        }

5）停止服務

 try
            {
                sock.Close();
                //中止監聽
                myThead.Abort();
                btnStart.Enabled = true;
                btnstop.Enabled = false;
                lbxMessage.Items.Add("停止成功 時間:" + DateTime.Now);
            }
            catch (Exception ee)
            {
                lbxMessage.Text = "停止失敗。。" + ee;
            }

5）接收消息

       private void Sending(IAsyncResult rec_socket)
        {
            //發送給客戶端的消息
            string sendmsg = "";
            Socket socket = (Socket)rec_socket.AsyncState;
            try
            {
                if (socket.Connected)
                {
                    byte[] msgBuff = Encoding.UTF8.GetBytes(sendmsg);
                    socket.Send(msgBuff);
                }
                else
                {
                    Console.WriteLine("Error!", "Error!");
                }
            }
            catch
            {
                Console.WriteLine("Error!", "Error!");
            }
        }

C#WinForm,TCP調試工具