多线程实现生产者消费者

对于多线程程序来说，不管任何编程语言，生产者和消费者模型都是最经典的。就像学习每一门编程语言一样，Hello World！都是最经典的例子。
实际上，准确说应该是“生产者-消费者-仓储”模型，离开了仓储，生产者消费者模型就显得没有说服力了。
对于此模型，应该明确一下几点：
1、生产者仅仅在仓储未满时候生产，仓满则停止生产。
2、消费者仅仅在仓储有产品时候才能消费，仓空则等待。
3、当消费者发现仓储没产品可消费时候会通知生产者生产。

4、生产者在生产出可消费产品时候，应该通知等待的消费者去消费。

import java.util.concurrent.ExecutorService;import java.util.concurrent.Executors;/** * 主类  */public class ProducerConsumer {public static void main(String[] args) {Storage storage = new Storage();ExecutorService service = Executors.newCachedThreadPool();Producer producerOne = new Producer("Producer One", storage);Producer producerTwo = new Producer("Producer Two", storage);Consumer consumerOne = new Consumer("Consumer One", storage);Consumer consumerTwo= new Consumer("Consumer Two", storage);Consumer consumerThree = new Consumer("Consumer Three", storage);service.submit(producerOne);service.submit(producerTwo);service.submit(consumerOne);service.submit(consumerTwo);service.submit(consumerThree);}}

/** * 消费者 */public class Consumer implements Runnable {private String name;private Storage storage = null;public Consumer(String name, Storage storage){this.name = name;this.storage = storage;}public void run() {try{while(true) {System.out.println("ThreadId:  " + Thread.currentThread().getId() +  "   " + name + "  准备消费产品!");Product product = storage.pop();System.out.println("ThreadId:  " + Thread.currentThread().getId() +  "   " + name + "  已经消费 " + product.toString());Thread.sleep(2000);}}catch(InterruptedException e) {e.printStackTrace();}}}

/** * 生产者 */public class Producer implements Runnable {private String name;private Storage storage = null;public Producer(String name, Storage storage) {this.name = name;this.storage = storage;}public void run() {while(true) {Product prodect = new Product((int)(Math.random()*10000));System.out.println("ThreadId:  " + Thread.currentThread().getId() +  "   "+ name + "准备生产 " + prodect.toString());try {storage.push(prodect);} catch (InterruptedException e) {e.printStackTrace();}System.out.println("ThreadId:  " + Thread.currentThread().getId() +  "   " + name + "已经生产 " + prodect.toString());try {Thread.sleep(3000);} catch (InterruptedException e) {e.printStackTrace();}}}}

/* * 产品类 */public class Product {private int id;public Product(int id) {this.id = id;}public String toString() {return "产品: " + this.id;}}

import java.util.concurrent.BlockingQueue;import java.util.concurrent.LinkedBlockingQueue;/** * 仓库类 */public class Storage {BlockingQueue<Product> queues = new LinkedBlockingQueue<Product>(10);public void push(Product p) throws InterruptedException {queues.put(p);}public Product pop() throws InterruptedException {return queues.take();}}

转载链接：http://www.cnblogs.com/linjiqin/p/3217050.html