使用java多线程实现生产者消费者-优快云博客

本文探讨了生产者消费者问题的并发解决方法，通过创建生产者和消费者线程，利用产品盒对象实现同步和互斥操作，展示了如何在并发环境中有效管理资源。

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/** * 产品对象 */ class Product { int id; public Product(int id) { super(); this.id = id; } public String toString(){ return "Product:" + id; } } /** * 产品盒对象 */ class ProductBox { Product[] productbox = new Product[6]; int index = 0; public ProductBox() { super(); } public synchronized void push(Product p) { while (index == productbox.length) { try { this.wait(); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } } this.notify(); productbox[index] = p; index ++; } public synchronized Product pop() { while (index == 0) { try { this.wait(); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } } this.notify(); index --; return productbox[index]; } } /** * 生产者 */ class Producer implements Runnable { ProductBox productbox = null; public Producer(ProductBox productbox) { super(); this.productbox = productbox; } @Override public void run() { // TODO Auto-generated method stub for (int i=0; i<10; i++) { Product p = new Product(i); productbox.push(p); System.out.println("produce:" + p); try { Thread.sleep((int)(Math.random() * 200)); } catch (InterruptedException e) { e.printStackTrace(); } } } } /** * 消费者 */ class Consumer implements Runnable { ProductBox productbox = null; public Consumer(ProductBox productbox) { super(); this.productbox = productbox; } @Override public void run() { // TODO Auto-generated method stub for (int i=0; i<10; i++) { Product p = productbox.pop(); System.out.println("consume:" + p); try { Thread.sleep((int)(Math.random() * 1000)); } catch (InterruptedException e) { e.printStackTrace(); } } } }

/**  
* 生产者消费者问题  
*/ 
public class ProducerConsumer {  
     /**  
      * @param args  
      */ 
     public static void main(String[] args) {          
         ProductBox pb = new ProductBox();  
         Producer p = new Producer(pb);  
         Consumer c = new Consumer(pb);  
          
         Thread pThread = new Thread(p);  
         Thread cThread = new Thread(c);  
         pThread.setPriority(Thread.MAX_PRIORITY);  
          
         pThread.start();  
         cThread.start();  
     }  
}