JAVA 阻塞队列实现 生产者和消费者 模式

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/laojiaqi/article/details/47337813

这是java多线程经常会遇到的问题。供初学者学习。

import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;


public class Hello {

 public static void main(String[] args) {
	ExecutorService executorService=Executors.newCachedThreadPool();
	BlockingQueue queue=new ArrayBlockingQueue(5);
	Hello hello=new Hello();
	Producer producer= hello.new Producer(queue);
	Consumer consumer= hello.new Consumer(queue);
	executorService.execute(producer);
	executorService.execute(consumer);
}
  class Consumer implements Runnable{
	  BlockingQueue queue;
	  public Consumer(BlockingQueue queue){
		  this.queue=queue;
	  }
	public void run() {
		while(true){
			try {
			Object getObject=queue.take();
			Thread.sleep(2000);//取出的时间间隔
			System.out.println("取出"+(String)getObject);
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
		}
		
	}
	  
  }
  
  class Producer implements Runnable{
	  BlockingQueue queue;
	  public Producer(BlockingQueue queue){
		  this.queue=queue;
	  }
	public void run() {
		while(true){
			try {
				for(int i=0;i<5;i++){
			    queue.put("num:"+i);
			    Thread.sleep(1000);//取出的时间间隔
			    System.out.println("放入"+i);
				}
				} catch (InterruptedException e) {
				e.printStackTrace();
			}
		}
		
	}
	  
  }
}

这是效果图，因为线程是由CPU进行调度，所以结果可能会不同。但是生产者放入，消费者取出的顺序是不会变的。