Java多线程Socket操作猜数游戏样例

下面是一个简单的 Java 多线程 Socket 操作猜数游戏的示例：

import java.io.*;
import java.net.*;

public class GuessingGameServer {
    public static void main(String[] args) throws IOException {
        ServerSocket serverSocket = new ServerSocket(8888);
        System.out.println("Server started!");

        while (true) {
            Socket clientSocket = serverSocket.accept();
            System.out.println("Client connected!");

            Thread gameThread = new Thread(new Game(clientSocket));
            gameThread.start();
        }
    }
}

class Game implements Runnable {
    private Socket clientSocket;

    public Game(Socket clientSocket) {
        this.clientSocket = clientSocket;
    }

    public void run() {
        try {
            BufferedReader in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
            PrintWriter out = new PrintWriter(clientSocket.getOutputStream(), true);

            int randomNumber = (int) (Math.random() * 100) + 1;
            out.println("I'm thinking of a number between 1 and 100. Try to guess it!");

            int guess;
            do {
                guess = Integer.parseInt(in.readLine());
                if (guess < randomNumber) {
                    out.println("Too low. Guess again.");
                } else if (guess > randomNumber) {
                    out.println("Too high. Guess again.");
                }
            } while (guess != randomNumber);

            out.println("Congratulations! You guessed the number!");
            clientSocket.close();
        } catch (IOException e) {
            System.out.println("Error: " + e.getMessage());
        }
    }
}

这个示例程序会监听 8888 端口，当有客户端连接时，就会创建一个新的线程来处理游戏。在游戏中，服务器会生成一个 1 到 100 的随机数，然后一直等待客户端猜测，直到猜中为止。每次猜测后，服务器会给出相应的提示。当游戏结束时，服务器会关闭与客户端的连接。