12月20日

今天继续学习网络编程
多线程服务器
在实际应用中，服务器通常需要同时处理多个客户端连接。多线程服务器可以通过为每个客户端连接创建一个新线程来实现。例如：

java
import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;

public class MultiThreadedServer {
public static void main(String[] args) {
try (ServerSocket serverSocket = new ServerSocket(12345)) {
System.out.println("Server is listening on port 12345");

        while (true) {Socket clientSocket = serverSocket.accept();System.out.println("New client connected");Thread thread = new ClientHandler(clientSocket);thread.start();}} catch (IOException e) {e.printStackTrace();}
}static class ClientHandler extends Thread {private final Socket clientSocket;public ClientHandler(Socket socket) {this.clientSocket = socket;}@Overridepublic void run() {try (PrintWriter out = new PrintWriter(clientSocket.getOutputStream(), true);BufferedReader in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()))) {String request = in.readLine();System.out.println("Client request: " + request);out.println("Hello, Client!");} catch (IOException e) {e.printStackTrace();} finally {try {clientSocket.close();} catch (IOException e) {e.printStackTrace();}}}
}

}
在这个例子中，服务器为每个客户端连接创建一个ClientHandler线程，处理客户端请求并发送响应。
通过今天的学习，我对Java网络编程有了较为深入的了解。