线程间通信之消费者模式一notifyAll()

最新推荐文章于 2015-10-10 16:14:11 发布

原创最新推荐文章于 2015-10-10 16:14:11 发布 · 505 阅读

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本文通过Java实现了一个简单的生产者消费者模型。该模型利用多线程技术，模拟了生产者制作烤鸭和消费者购买烤鸭的过程。使用同步方法确保线程间的正确交互，并通过wait和notifyAll方法协调生产者与消费者的活动。

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public class ProducerConsumer
{
public static void main(String argsp[]){
Dug dug = new Dug();
Producer pro = new Producer(dug);
Customer cus = new Customer(dug);
Thread t1 = new Thread(pro,"员工一号");
Thread t2 = new Thread(pro,"员工二号");
Thread t3 = new Thread(cus,"消费一号");
Thread t4 = new Thread(cus,"消费二号");

t1.start();
t2.start();
t3.start();
t4.start();
}
}

class Dug{

private int dugCount;

public synchronized void create(){
while(true){
while(dugCount>0){//将0改成flag或者改成9
try{
this.wait();
}catch(Exception e){

}

}
System.out.println(Thread.currentThread().getName()+"生产第"+(++dugCount)+"只烤鸭");

try{
this.notifyAll();
}catch(Exception e){

}
}

}

public synchronized void sale(){
while(true){
while(dugCount<1){
try{
this.wait();
}catch(Exception e){

}
}

System.out.println(Thread.currentThread().getName()+"消费第"+(dugCount--)+"只烤鸭");

try{
this.notifyAll();
}catch(Exception e){

}
}
}
}

class Producer implements Runnable
{
private Dug dug;

public Producer(Dug dug){
this.dug = dug;
}

public void run(){
dug.create();
}
}

class Customer implements Runnable
{
private Dug dug;

public Customer(Dug dug){
this.dug = dug;
}

public void run(){
dug.sale();
}
}