C#中简单Socket编程的实现实例

using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading;
 
class Program
{
    static void Main(string[] args)
    {
        // 设置服务器IP和端口
        IPAddress ipAddress = IPAddress.Parse("127.0.0.1");
        int port = 11000;
 
        // 创建一个TcpListener对象
        TcpListener listener = new TcpListener(ipAddress, port);
 
        // 开始监听客户端请求
        listener.Start();
        Console.WriteLine("服务器已启动，等待客户端连接...");
 
        while (true)
        {
            // 接受客户端连接
            TcpClient client = listener.AcceptTcpClient();
            Console.WriteLine("客户端已连接！");
 
            // 启动一个新线程处理客户端请求
            Thread clientThread = new Thread(HandleClient);
            clientThread.Start(client);
        }
    }
 
    static void HandleClient(object obj)
    {
        TcpClient client = (TcpClient)obj;
 
        // 获取网络流
        NetworkStream stream = client.GetStream();
 
        byte[] buffer = new byte[1024];
        int bytesRead;
 
        // 读取客户端发送的数据
        while ((bytesRead = stream.Read(buffer, 0, buffer.Length)) != 0)
        {
            string data = Encoding.UTF8.GetString(buffer, 0, bytesRead);
            Console.WriteLine("收到客户端消息: " + data);
 
            // 回应客户端消息
            byte[] response = Encoding.UTF8.GetBytes("服务器已收到消息");
            stream.Write(response, 0, response.Length);
        }
 
        // 关闭连接
        client.Close();
    }
}
​

using System;
using System.Net.Sockets;
using System.Text;
 
class Program
{
    static void Main(string[] args)
    {
        // 设置服务器IP和端口
        string server = "127.0.0.1";
        int port = 11000;
 
        // 创建一个TcpClient对象
        TcpClient client = new TcpClient(server, port);
 
        // 获取网络流
        NetworkStream stream = client.GetStream();
 
        // 发送消息到服务器
        string message = "Hello, Server!";
        byte[] data = Encoding.UTF8.GetBytes(message);
        stream.Write(data, 0, data.Length);
        Console.WriteLine("发送消息到服务器: " + message);
 
        // 接收服务器回应消息
        byte[] buffer = new byte[1024];
        int bytesRead = stream.Read(buffer, 0, buffer.Length);
        string response = Encoding.UTF8.GetString(buffer, 0, bytesRead);
        Console.WriteLine("收到服务器回应: " + response);
 
        // 关闭连接
        client.Close();
    }
}
​