Java 多线程生产者和消费者代码示例

共享资源代码：

package com.hycz.producer.consumer;public class Box {private int data;private boolean variable = false; //同步标识符public synchronized void put(int data){while(variable){//当同步标识符为true时，所有生产者线程调用的put()方法时都从运行状态变成阻塞状态，不进行生产。try {wait();} catch (InterruptedException e) {e.printStackTrace();}}variable = true; // 改变标识符this.data = data;notifyAll(); // 唤醒所以处于阻塞状态的消费者线程，提醒它们现在产品可以进行消费。}public synchronized int get(){while(!variable){ // 当同步标识符为false时，所有消费者线程调用get()方法时都从运行状态变成阻塞状态，不进行消费。try {wait();} catch (InterruptedException e) {e.printStackTrace();}}variable = false; // 改变标识符notifyAll(); // 唤醒所以处于阻塞状态的生产者线程，提醒它们进行产口的生产。return this.data;}}

生产者代码：

package com.hycz.producer.consumer;public class Producer extends Thread {private Box box;public Producer(Box box) {super();this.box = box;}@Overridepublic void run() {for(int i = 0; i<10; i++){box.put(i);System.out.println("Producer put = " + i);try {Thread.sleep((int)Math.random()*100);} catch (InterruptedException e) {e.printStackTrace();}}}}

消费者代码：

package com.hycz.producer.consumer;public class Consumer extends Thread {private Box box;public Consumer(Box box) {this.box = box;}@Overridepublic void run() {int value = 0;for(int i=0; i<10; i++){value = box.get();System.out.println("Consumer get = " + value);}}}

测试代码：

package com.hycz.producer.consumer;public class ProducerConsumerTest {public static void main(String[] args) {Box box = new Box();Thread producer = new Producer(box);Thread consumer = new Consumer(box);producer.start();consumer.start();}}