Sistem peringatan mesej dilaksanakan melalui Java

public class Message {
    private String content;
    private String sender;
    private String receiver;
    
    // 构造方法
    public Message(String content, String sender, String receiver) {
        this.content = content;
        this.sender = sender;
        this.receiver = receiver;
    }
    
    // getter和setter方法
    // ...
}

import java.util.LinkedList;
import java.util.Queue;

public class MessageQueue {
    private Queue<Message> queue;
    
    public MessageQueue() {
        this.queue = new LinkedList<>();
    }
    
    // 添加消息到队列
    public synchronized void push(Message message) {
        queue.offer(message);
    }
    
    // 从队列中获取消息
    public synchronized Message pop() {
        return queue.poll();
    }
}

public class MessageSenderThread extends Thread {
    private MessageQueue messageQueue;
    
    public MessageSenderThread(MessageQueue messageQueue) {
        this.messageQueue = messageQueue;
    }
    
    @Override
    public void run() {
        while (true) {
            // 从消息队列中获取消息
            Message message = messageQueue.pop();
            
            // 发送消息给接收者
            // TODO: 实现具体的发送逻辑
            
            System.out.println("发送消息：" + message.getContent());
            
            try {
                // 线程休眠1秒钟
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}

public class MessageReceiverThread extends Thread {
    private MessageQueue messageQueue;
    
    public MessageReceiverThread(MessageQueue messageQueue) {
        this.messageQueue = messageQueue;
    }
    
    @Override
    public void run() {
        while (true) {
            // 接收到一条新消息
            // TODO: 实现具体的接收逻辑
            
            Message message = new Message("新消息", "sender", "receiver");
            
            messageQueue.push(message);
            
            try {
                // 线程休眠2秒钟
                Thread.sleep(2000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}

public class Main {
    public static void main(String[] args) {
        MessageQueue messageQueue = new MessageQueue();
        
        MessageSenderThread senderThread = new MessageSenderThread(messageQueue);
        senderThread.start();
        
        MessageReceiverThread receiverThread = new MessageReceiverThread(messageQueue);
        receiverThread.start();
    }
}