用Java编程实现生产者－消费者模型

好的，关于生产者-消费者模型的实现，可以使用Java中的阻塞队列来实现。具体实现方式可以参考以下代码：

import java.util.concurrent.ArrayBlockingQueue;

public class ProducerConsumer {
    private static final int BUFFER_SIZE = 10;
    private static ArrayBlockingQueue<Integer> buffer = new ArrayBlockingQueue<>(BUFFER_SIZE);

    public static void main(String[] args) {
        Thread producerThread = new Thread(new Producer());
        Thread consumerThread = new Thread(new Consumer());
        producerThread.start();
        consumerThread.start();
    }

    static class Producer implements Runnable {
        @Override
        public void run() {
            try {
                int i = 1;
                while (true) {
                    buffer.put(i);
                    System.out.println("Producer produced " + i);
                    i++;
                    Thread.sleep(1000);
                }
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }

    static class Consumer implements Runnable {
        @Override
        public void run() {
            try {
                while (true) {
                    int num = buffer.take();
                    System.out.println("Consumer consumed " + num);
                    Thread.sleep(2000);
                }
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}

这段代码中使用了一个ArrayBlockingQueue作为生产者和消费者之间的缓冲区。生产者不断往缓冲区中放入数据，消费者则从缓冲区中取出数据进行处理。如果缓冲区已满，则生产者会被阻塞；如果缓冲区已空，则消费者会被阻塞。这样可以保证生产者和消费者之间的同步。