用java给出实现基于TCP socket的图形化点对点聊天应用的代码给出测试数据并输出结果

以下是基于TCP socket的图形化点对点聊天应用的Java代码：

Client.java

import java.io.*;
import java.net.*;
import javax.swing.*;

public class Client extends JFrame {
    private JTextArea chatArea;
    private JTextField inputField;
    private JButton sendButton;
    private Socket socket;
    private BufferedReader reader;
    private BufferedWriter writer;

    public Client() {
        super("Chat Client");
        initUI();
        initNetwork();
    }

    private void initUI() {
        chatArea = new JTextArea();
        add(new JScrollPane(chatArea), "Center");

        JPanel panel = new JPanel();
        inputField = new JTextField(20);
        panel.add(inputField);

        sendButton = new JButton("Send");
        sendButton.addActionListener(e -> sendMessage());
        panel.add(sendButton);

        add(panel, "South");

        setSize(300, 300);
        setLocationRelativeTo(null);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setVisible(true);
    }

    private void initNetwork() {
        try {
            socket = new Socket("localhost", 8888);
            reader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
            writer = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));
            new Thread(() -> {
                try {
                    while (true) {
                        String message = reader.readLine();
                        chatArea.append(message + "\n");
                    }
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }).start();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private void sendMessage() {
        String message = inputField.getText().trim();
        if (!message.isEmpty()) {
            try {
                writer.write(message + "\n");
                writer.flush();
                inputField.setText("");
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    public static void main(String[] args) {
        new Client();
    }
}

Server.java

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

public class Server {
    private List<Socket> sockets = new ArrayList<>();

    public Server() {
        try {
            ServerSocket serverSocket = new ServerSocket(8888);
            System.out.println("Server started");
            while (true) {
                Socket socket = serverSocket.accept();
                System.out.println("New client connected: " + socket.getRemoteSocketAddress());
                sockets.add(socket);
                new Thread(() -> handleClient(socket)).start();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private void handleClient(Socket socket) {
        try {
            BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
            while (true) {
                String message = reader.readLine();
                if (message == null) {
                    break;
                }
                System.out.println("Received message from " + socket.getRemoteSocketAddress() + ": " + message);
                broadcast(message);
            }
            System.out.println("Client disconnected: " + socket.getRemoteSocketAddress());
            sockets.remove(socket);
            socket.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private void broadcast(String message) {
        for (Socket socket : sockets) {
            try {
                BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));
                writer.write(message + "\n");
                writer.flush();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    public static void main(String[] args) {
        new Server();
    }
}

测试数据：启动一个Server实例和两个Client实例，分别在两个窗口中输入和发送消息。

结果：在Server控制台中可以看到收到的消息，同时所有的Client窗口中都会显示相同的消息。