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在C#中,使用TCP/IP和多线程可以实现高性能的网络通信。以下是一个简单的示例,展示了如何创建一个TCP服务器和客户端,并使用多线程处理并发连接。
首先,我们需要创建一个TCP服务器:
using System; using System.Net; using System.Net.Sockets; using System.Text; using System.Threading; namespace TcpServer { class Program { private static TcpListener _listener; static void Main(string[] args) { _listener = new TcpListener(IPAddress.Any, 8080); _listener.Start(); Console.WriteLine("Server is listening on port 8080..."); while (true) { TcpClient client = _listener.AcceptTcpClient(); Thread thread = new Thread(HandleClient); thread.Start(client); } } private static void HandleClient(object obj) { TcpClient client = (TcpClient)obj; NetworkStream stream = client.GetStream(); byte[] buffer = new byte[1024]; int bytesRead = stream.Read(buffer, 0, buffer.Length); string message = Encoding.ASCII.GetString(buffer, 0, bytesRead); Console.WriteLine($"Received message: {message}"); string response = "Message received"; byte[] responseData = Encoding.ASCII.GetBytes(response); stream.Write(responseData, 0, responseData.Length); stream.Close(); client.Close(); } } }
接下来,我们创建一个TCP客户端:
using System; using System.Net.Sockets; using System.Text; namespace TcpClient { class Program { static void Main(string[] args) { TcpClient client = new TcpClient("localhost", 8080); NetworkStream stream = client.GetStream(); string message = "Hello, server!"; byte[] data = Encoding.ASCII.GetBytes(message); stream.Write(data, 0, data.Length); byte[] buffer = new byte[1024]; int bytesRead = stream.Read(buffer, 0, buffer.Length); string response = Encoding.ASCII.GetString(buffer, 0, bytesRead); Console.WriteLine($"Server response: {response}"); stream.Close(); client.Close(); } } }
在这个示例中,服务器使用TcpListener
类监听指定端口上的连接请求。当接收到新的连接请求时,服务器会创建一个新的线程来处理客户端的请求。客户端使用TcpClient
类连接到服务器,并发送一条消息。服务器接收到消息后,回复一条确认消息。
要运行此示例,请分别编译并运行服务器和客户端项目。你可以根据需要修改服务器和客户端的代码,以满足你的需求。