Java:如果客户端在等待输入时终止，则停止服务器扫描程序

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

public class Server {
    public static void main(String[] args) {
        ServerSocket serverSocket = null;
        try {
            serverSocket = new ServerSocket(8080);
            System.out.println("Server started, listening on port 8080...");

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

                BufferedReader in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
                PrintWriter out = new PrintWriter(clientSocket.getOutputStream(), true);

                String inputLine;
                while ((inputLine = in.readLine()) != null) {
                    System.out.println("Received from client: " + inputLine);
                    out.println("Echo: " + inputLine);
                }

                // 客户端断开连接，关闭资源
                in.close();
                out.close();
                clientSocket.close();
                System.out.println("Client disconnected");
            }
        } catch (IOException e) {
            System.err.println("Server exception: " + e.getMessage());
        } finally {
            if (serverSocket != null) {
                try {
                    serverSocket.close();
                } catch (IOException e) {
                    System.err.println("Could not close server socket: " + e.getMessage());
                }
            }
        }
    }
}