ProducerConsumer-优快云博客

本文通过Java代码示例展示了经典的生产者消费者模式。利用同步栈（SyncStack）作为两者之间的缓冲区，生产者不断地生成窝头对象并放入栈中，而消费者从栈中取出并消费这些对象。该实现使用了synchronized关键字来确保线程安全。

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public class ProducerConsumer { public static void main(String[] args) { SyncStack ss = new SyncStack(); Producer p = new Producer(ss); Consumer c = new Consumer(ss); new Thread(p).start(); new Thread(c).start(); } } class WoTou { int id; WoTou(int id) { this.id = id; } public String toString() { return "WoTou : " + id; } } class SyncStack { int index = 0; WoTou[] arrWT = new WoTou[6]; public synchronized void push(WoTou wt) { while(index == arrWT.length) { try { this.wait(); } catch (InterruptedException e) { e.printStackTrace(); } } this.notifyAll(); arrWT[index] = wt; index ++; } public synchronized WoTou pop() { while(index == 0) { try { this.wait(); } catch (InterruptedException e) { e.printStackTrace(); } } this.notifyAll(); index--; return arrWT[index]; } } class Producer implements Runnable { SyncStack ss = null; Producer(SyncStack ss) { this.ss = ss; } public void run() { for(int i=0; i<20; i++) { WoTou wt = new WoTou(i); ss.push(wt); System.out.println("生产了：" + wt); try { Thread.sleep((int)(Math.random() * 200)); } catch (InterruptedException e) { e.printStackTrace(); } } } } class Consumer implements Runnable { SyncStack ss = null; Consumer(SyncStack ss) { this.ss = ss; } public void run() { for(int i=0; i<20; i++) { WoTou wt = ss.pop(); System.out.println(" 消费了: " + wt); try { Thread.sleep((int)(Math.random() * 1000)); } catch (InterruptedException e) { e.printStackTrace(); } } } }