操作系统之生产者-消费者_操作系统生产者消费者github-优快云博客

本文链接：https://blog.youkuaiyun.com/weixin_43899266/article/details/105322401

本文介绍了一种使用Java实现的生产者-消费者模式，通过synchronized关键字和wait/notify方法来协调生产者和消费者线程，确保资源的正确生产和消费。在资源达到上限时，生产者将等待；在资源为零时，消费者将等待。

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class Resources{
    private int count = 0;

    public synchronized void produce() {
        if(count < 20) {
            count++;
            System.out.println(Thread.currentThread().getName() + "：开始生产第" + count + "个产品");
            notify();
        }else{
            try {
                wait();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }

    public synchronized void consume() {
        if(count > 0) {
            System.out.println(Thread.currentThread().getName() + "：开始消费第"+  count + "个产品");
            count--;
            notify();
        }else{
            try {
                wait();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}

class Producer extends Thread{
    private Resources resource;

    public Producer(Resources resource){
        this.resource = resource;
    }

    @Override
    public void run() {
        System.out.println(Thread.currentThread().getName() + ":开始生产...");

        while(true){
            try {
                Thread.sleep(10);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            resource.produce();
        }
    }
}

class Consumer extends Thread{
    private Resources resource;

    public Consumer(Resources resource){
        this.resource = resource;
    }

    @Override
    public void run() {
        System.out.println(Thread.currentThread().getName() + ":开始消费...");

        while (true) {
            try {
                Thread.sleep(20);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            resource.consume();
        }
    }

}


public class pv_Test {
    public static void main(String[] args) {
        Resources resource = new Resources();
        Producer p = new Producer(resource);
        p.setName("生产者");

        Consumer v = new Consumer(resource);
        v.setName("消费者");

        p.start();
        v.start();

    }
}