1. 服务器端代码
1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Net;
5 using System.Net.Sockets;
6 using System.Text;
7 using System.Threading;
8 using System.Threading.Tasks;
9
10 namespace Sever
11 {
12 class Program
13 {
14 private static Socket severSocket = null;
15
16 /// <summary>
17 /// 服务端程序
18 /// 1. 新建 socket，并绑定端口
19 /// 2. 接收客户端连接
20 /// 3. 给客户端发送信息
21 /// 4. 接收客户端信息
22 /// 5. 断开连接
23 /// </summary>
24 /// <param name="args"></param>
25 static void Main(string[] args)
26 {
27 severSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
28 IPEndPoint endPoint = new IPEndPoint(IPAddress.Any, 9999);
29 severSocket.Bind(endPoint); // 绑定
30 severSocket.Listen(10); // 设置最大连接数
31 Console.WriteLine("开始监听");
32 Thread thread = new Thread(ListenClientConnect); // 开启线程监听客户端连接
33 thread.Start();
34 Console.ReadKey();
35 }
36
37 /// <summary>
38 /// 监听客户端连接
39 /// </summary>
40 private static void ListenClientConnect()
41 {
42 Socket clientSocket = severSocket.Accept(); // 接收客户端连接
43 Console.WriteLine("客户端连接成功 信息： " + clientSocket.AddressFamily.ToString());
44 clientSocket.Send(Encoding.Default.GetBytes("你连接成功了"));
45 Thread revThread = new Thread(ReceiveClientManage);
46 revThread.Start(clientSocket);
47 }
48
49 private static void ReceiveClientManage(object clientSocket)
50 {
51 Socket socket = clientSocket as Socket;
52 byte[] buffer = new byte[1024];
53 int length = socket.Receive(buffer); // 从客户端接收消息
54 Console.WriteLine("收到消息：" + Encoding.Default.GetString(buffer));
55 }
56 }
57 }
2. 客户端代码
1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Net;
5 using System.Net.Sockets;
6 using System.Text;
7 using System.Threading.Tasks;
8
9 namespace client
10 {
11 /// <summary>
12 /// 客户端程序
13 /// 1. 新建 Socket
14 /// 2. 连接服务器
15 /// 3. 接收服务器信息
16 /// 4. 向服务器发送信息
17 /// </summary>
18 class Program
19 {
20 private static Socket clientSocket = null;
21
22 static void Main(string[] args)
23 {
24 clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
25 // 客户端不需要绑定， 需要连接
26 IPEndPoint endPoint = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 9999); // 端口号要与服务器对应
27 clientSocket.Connect(endPoint);
28 Console.WriteLine("连接到服务器");
29 // 接收服务器信息
30 byte[] buffer = new byte[1024];
31 int length = clientSocket.Receive(buffer);
32 Console.WriteLine("收到消息： " + Encoding.Default.GetString(buffer));
33 // 向服务器发送消息
34 clientSocket.Send(Encoding.Default.GetBytes("你好服务器"));
35 Console.ReadKey();
36 }
37 }
38 }
3. 运行截图
