最近实在闲的蛋疼。。。看了下tcp/ip 通信 搞了几个Demo 献给新手（本人也很菜哈。。都是写的短连接，本来tcp的时候想用长连接的 但看了下 头晕中 要搞心跳包 实在能力有限） 不多说 贴图。帖demo
----IP Service ------
----IP Client------
----IP Service Major code------
- C# code
private void BeginListen() { serverIP = IPAddress.Parse(tbxIP.Text); serverFullAddr = new IPEndPoint(serverIP, int.Parse(tbxPort.Text));//设置IP，端口 sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); //指定本地主机地址和端口号 sock.Bind(serverFullAddr); lbxMessage.Invoke(new SetTextCallback(SetText), "启动成功 时间:"+DateTime.Now, 1); byte[] message = new byte[1024]; string mess = ""; while (true) { try { sock.Listen(5);//设置监听频率 Socket newSocket = sock.Accept();//阻塞方式 int bytes= newSocket.Receive(message);//接收数据 mess = Encoding.Default.GetString(message, 0, bytes);//对接收字节编码（S与C 两端编码格式必须一致不然中文乱码）（当接收的字节大于1024的时候 这应该是循环接收，测试就没有那样写了） //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);//子线程操作主线程UI控件 mess = "已接收数据： " + mess + " 当前时间为：" + DateTime.Now; newSocket.Send(Encoding.Default.GetBytes(mess));//想客户端发送数据 } catch (SocketException se) { lbxMessage.Invoke(new SetTextCallback(SetText), mess, 1); } } }----IP Clinet Major code------
- C# code
//发送消息 private void btnSend_Click(object sender, EventArgs e) { serverFullAddr = new IPEndPoint(serverIP, int.Parse(tbxPort.Text));//设置IP，端口 sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); //指定本地主机地址和端口号 sock.Connect(serverFullAddr); byte[] byteSend = System.Text.Encoding.Default.GetBytes(this.tbxMessage.Text); byte[] message = new byte[1024]; string mess = ""; int bytes = 0; try { //发送数据 sock.Send(byteSend); bytes = sock.Receive(message);//接收数据 mess = mess + Encoding.Default.GetString(message,0,bytes);//编码（当接收的字节大于1024的时候 这应该是循环接收，测试就没有那样写了） //do //{ // bytes = newSocket.Receive(message, message.Length, 0); // mess = mess + Encoding.ASCII.GetString(message, 0, bytes); //} // while (bytes > 0); tbxMessage.Text = mess; } catch (Exception ex) { lblError.Text = "出现错误，请联系管理员"; } sock.Close(); }-----------------------------TCP Demo---------------------------------------
----TCP Service ------
----TCP Client------
----TCP Service code ------
- C# code
static void Main(string[] args) { TcpListener listener = null; int portNum = 9001; byte[] bytes = new byte[1024]; try { Console.WriteLine("开启服务器端窗口。。。。"); Console.WriteLine("请等待连接..."); bool done = false; listener = new TcpListener(IPAddress.Parse("127.0.0.1"), portNum); listener.Start();//开始监听 while (!done) { TcpClient client = listener.AcceptTcpClient(); Console.WriteLine("连接成功........"); NetworkStream ns = client.GetStream(); int num=ns.Read(bytes,0,bytes.Length);//读C端发送的数据 Console.WriteLine(Encoding.ASCII.GetString(bytes, 0, num));//编码 byte[] byteTime = Encoding.ASCII.GetBytes(DateTime.Now.ToString()); try { ns.Write(byteTime, 0, byteTime.Length);//像C端发送数据 ns.Close(); client.Close(); } catch (Exception e) { Console.WriteLine(e.ToString()); } } listener.Stop(); } catch (Exception ee) { Console.Write("错误提示：" + ee.Message); } finally { // Stop listening for new clients. listener.Stop(); } Console.WriteLine("\nHit enter to continue..."); Console.Read(); }