生产者-消费者案例

使用阻塞队列实现生产者-消费者

class MyResource {
    
    private volatile boolean FLAG = true;//默认开启，进行生产+消费
    
    private AtomicInteger atomicInteger = new AtomicInteger();

    private BlockingQueue<String>  blockingQueue = null;

    public MyResource(BlockingQueue<String> blockingQueue) {//传接口，不要传类
        this.blockingQueue = blockingQueue;
        System.out.println(blockingQueue.getClass().getName());
    }
    
    public void produce() throws Exception {
        String data = "";
        boolean returnValue;
        while (FLAG) {
            data = atomicInteger.getAndIncrement() + "";
            returnValue = blockingQueue.offer(data, 2L, TimeUnit.SECONDS);
            if(returnValue) {
                System.out.println(Thread.currentThread().getName() + "插入数据" + data + "成功");
            }else {
                System.out.println(Thread.currentThread().getName() + "插入数据" + data + "失败");
            }
            TimeUnit.SECONDS.sleep(1);
        }
        System.out.println(Thread.currentThread().getName()+"大老板叫停，FLAG = false，生产动作结束");
    }

    public void consume() throws Exception {
        String result = null;
        while (FLAG) {
            result = blockingQueue.poll(2L, TimeUnit.SECONDS);
            if(result == null) {
                FLAG = false;
                System.out.println(Thread.currentThread().getName() + "超时2秒没取到数据，消费退出");
                return;
            }
            System.out.println(Thread.currentThread().getName() + "消费队列" + result + "成功");
            
        }
        System.out.println(Thread.currentThread().getName()+"大老板叫停，FLAG = false，消费动作结束");
    }
    
    public void stop() {
        this.FLAG = false;
    }
    
}

public class ProducerConsumerDemo {

    public static void main(String[] args) throws InterruptedException {

        MyResource myResource = new MyResource(new ArrayBlockingQueue<>(10));
        
        new Thread(()->{
            System.out.println(Thread.currentThread().getName() + "生产线程启动");
            try {
                myResource.produce();
            } catch (Exception e) {
                e.printStackTrace();
            }
        },"prod").start();


        new Thread(()->{
            System.out.println(Thread.currentThread().getName() + "消费线程启动");
            try {
                myResource.consume();
            } catch (Exception e) {
                e.printStackTrace();
            }
        },"consume").start();
        
        
        TimeUnit.SECONDS.sleep(5);

        System.out.println("5秒后停止，活动结束");
        myResource.stop();
        
    }
    
}