Java多线程的一个案例-生产者消费者问题

版权声明：本文为博主原创文章，转载请保留链接，谢谢。 https://blog.csdn.net/qq_24754061/article/details/53508680

Java多线程-生产者消费者问题（多个消费者多个生产者）

public class ConsumerProcuderDemo {
	public static void main(String[] args) {
		Resourse resourse = new Resourse();//多个线程，共享一个变量，主要注意点就是对这个变量的共享访问控制
		new Thread(new Procuder(resourse)).start();//将这个变量传递给每个线程
		new Thread(new Procuder(resourse)).start();
		new Thread(new Consumer(resourse)).start();
		new Thread(new Consumer(resourse)).start();
	}
}
class Procuder implements Runnable{
	private Resourse res;
	public Procuder(Resourse resourse) {
		res = resourse;
	}
	@Override
	public void run() {
		while(true){
			res.set("商品");
		}
	}
}
class Consumer implements Runnable{
	private Resourse res;
	public Consumer(Resourse resourse) {
		res = resourse;
	}
	@Override
	public void run() {
		while(true){
			res.out();
		}
	}
}
class Resourse{
	private String name;
	private int count = 1;
	private boolean flag = false;
	public synchronized void set(String name) {//多个生产线程的控制
		while (flag) {//为false的时候，进行生产，true时，睡眠等待
			try {
				wait();
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
		}
		this.name = name + "---" + count++;
		System.out.println(Thread.currentThread().getName() + "---生产者---" + this.name);
		flag = true;//让生产者休眠
		this.notifyAll();//唤醒所有线程
	}
	
	public synchronized void out() {
		while (!flag) {
			try {
				wait();
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
		}
		//count --;
		System.out.println(Thread.currentThread().getName() + "-------------消费者-----------" + this.name);
		flag = false;
		this.notifyAll();
	}
}