生产者消费实现

具体代码如下:

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

public class ProducerConsumerTest {
    private static final int CAPACITY = 5;
    public static void main(String[] args) {
        Queue<Integer> queue = new LinkedList<>();
        Producer producer = new Producer(queue, CAPACITY);
        Thread producer1 = new Thread(producer,"生产者1");
        Thread producer2 = new Thread(producer,"生产者2");
        Consumer consumer = new Consumer(queue, CAPACITY);
        Thread consumer1 = new Thread(consumer,"消费者1");
        Thread consumer2 = new Thread(consumer,"消费者2");
        Thread consumer3 = new Thread(consumer,"消费者3");


        producer1.start();
        producer2.start();

        consumer1.start();
        consumer2.start();
        consumer3.start();
    }

    /**
     * 生产者
     */
    public static class Producer implements Runnable{
        private Queue<Integer> queue;
        int maxSize;

        int i = 1;

        public Producer(Queue<Integer> queue, int maxSize) {
            this.queue = queue;
            this.maxSize = maxSize;
        }
        @Override
        public void run() {
            while (true) {
                synchronized (queue) {
                    while (queue.size() == maxSize) {
                        try {
                            System.out.println(Thread.currentThread().getName() + "生产达到最大值");
                            queue.wait();
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }
                    }
                    System.out.println("生产第:" + i + "个产品");
                    queue.offer(i++);
                    queue.notifyAll();
                    try {
                        Thread.sleep(new Random().nextInt(1000));
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            }
        }
    }

    /**
     * 消费者
     */
    public static class Consumer implements Runnable {
        private Queue<Integer> queue;
        int maxSize;

        public Consumer(Queue<Integer> queue, int maxSize) {
            this.queue = queue;
            this.maxSize = maxSize;
        }

        @Override
        public void run() {
            while (true) {
                synchronized (queue) {
                    while (queue.isEmpty()) {
                        try {
                            System.out.println(Thread.currentThread().getName() + "消费完产品");
                            queue.wait();
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }
                    }
                    int i = queue.poll();
                    System.out.println("生产第:" + i + "个产品");
                    queue.notifyAll();
                    try {
                        Thread.sleep(new Random().nextInt(1000));
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            }
        }
    }
}

可以研究一下实现的过程,这只是最简单的实现.