有没有办法只在Java套接字中将消息从服务器发送到一个客户端？

import java.io.IOException;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;

public class Server {
    public static void main(String[] args) {
        try {
            // 创建ServerSocket对象，监听指定的端口
            ServerSocket serverSocket = new ServerSocket(8888);
            
            // 等待客户端连接
            System.out.println("等待客户端连接...");
            Socket socket = serverSocket.accept();
            
            // 获取输出流，向客户端发送消息
            OutputStream outputStream = socket.getOutputStream();
            outputStream.write("Hello, client!".getBytes());
            
            // 关闭资源
            outputStream.close();
            socket.close();
            serverSocket.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

import java.io.IOException;
import java.io.InputStream;
import java.net.Socket;

public class Client {
    public static void main(String[] args) {
        try {
            // 创建Socket对象，指定服务器的IP地址和端口号
            Socket socket = new Socket("服务器IP地址", 8888);
            
            // 获取输入流，读取服务器发送的消息
            InputStream inputStream = socket.getInputStream();
            byte[] buffer = new byte[1024];
            int length = inputStream.read(buffer);
            String message = new String(buffer, 0, length);
            
            System.out.println("收到消息：" + message);
            
            // 关闭资源
            inputStream.close();
            socket.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}