java stocket 实现服务器于客户机的交互，发送数据，创建新的客户机，客户机与服务器的连接，广播的代码与注释

好的，以下是一个简单的Java Socket实现服务器与客户端之间交互、发送数据、创建新客户机、客户端与服务器连接和广播的示例代码及注释：

服务器端代码：

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

public class Server {
    private ServerSocket serverSocket;

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

    public void startServer() {
        try {
            // 创建ServerSocket并绑定端口号
            serverSocket = new ServerSocket(8888);
            System.out.println("服务器已启动，等待客户端连接...");

            while (true) {
                // 接收客户端连接请求，创建新的客户端Socket
                Socket clientSocket = serverSocket.accept();
                System.out.println("有新的客户端连接：" + clientSocket.getInetAddress().getHostAddress());

                // 创建新线程处理客户端请求
                ClientHandler clientHandler = new ClientHandler(clientSocket);
                new Thread(clientHandler).start();
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                if (serverSocket != null) {
                    serverSocket.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    // 处理客户端请求的线程
    private class ClientHandler implements Runnable {
        private Socket clientSocket;
        private BufferedReader reader;
        private PrintWriter writer;

        public ClientHandler(Socket clientSocket) throws IOException {
            this.clientSocket = clientSocket;
            // 获取输入流和输出流
            reader = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
            writer = new PrintWriter(new OutputStreamWriter(clientSocket.getOutputStream()));
        }

        @Override
        public void run() {
            try {
                String message;
                while ((message = reader.readLine()) != null) {
                    System.out.println("收到客户端消息：" + message);

                    // 广播消息给其他客户端
                    broadcastMessage(message);
                }
            } catch (IOException e) {
                e.printStackTrace();
            } finally {
                try {
                    if (clientSocket != null) {
                        clientSocket.close();
                    }
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }

        // 发送消息给客户端
        public void sendMessage(String message) {
            writer.println(message);
            writer.flush();
        }
    }

    // 广播消息给所有客户端
    public synchronized void broadcastMessage(String message) {
        for (Thread thread : Thread.getAllStackTraces().keySet()) {
            if (thread instanceof ClientHandler) {
                ClientHandler clientHandler = (ClientHandler) thread;
                clientHandler.sendMessage(message);
            }
        }
    }
}

客户端代码：

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

public class Client {
    private Socket clientSocket;
    private BufferedReader reader;
    private PrintWriter writer;

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

    public void startClient() {
        try {
            // 创建客户端Socket并连接服务器
            clientSocket = new Socket("localhost", 8888);
            System.out.println("连接服务器成功！");

            // 获取输入流和输出流
            reader = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
            writer = new PrintWriter(new OutputStreamWriter(clientSocket.getOutputStream()));

            // 开启新线程接收服务器消息
            new Thread(() -> {
                try {
                    String message;
                    while ((message = reader.readLine()) != null) {
                        System.out.println("收到服务器消息：" + message);
                    }
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }).start();

            // 发送消息给服务器
            BufferedReader consoleReader = new BufferedReader(new InputStreamReader(System.in));
            String message;
            while ((message = consoleReader.readLine()) != null) {
                writer.println(message);
                writer.flush();
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                if (clientSocket != null) {
                    clientSocket.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}

注释在代码中，希望对您有所帮助。