黑马程序员 java基础Thread生产者消费者_生产者消费者毕向东-优快云博客

本文链接：https://blog.youkuaiyun.com/lazy_xia/article/details/22457377

本文提供了一个使用Java实现的生产者消费者模式示例。通过同步方法和等待-通知机制来协调生产和消费过程，展示了如何解决多线程环境下的资源竞争问题。

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public class ProducerConsumerDemo {

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub

Resource r = new Resource();
Producer pro = new Producer(r);
Consumer con = new Consumer(r);

new Thread(pro).start();
new Thread(con).start();
}

}

class Resource {
private String name;
private int count = 1;
private boolean flag = false;

public synchronized void set(String name) {
if (flag) { //当2个以上的线程这里不用if改用while 下面不用notifyAll
try {
wait();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
this.name = name + "---" + count++;

System.out.println(Thread.currentThread().getName() + "..生产者......."
+ this.name);

flag = true;
this.notify();
}

public synchronized void out() {

if (!flag)
try {
wait();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.println(Thread.currentThread().getName() + "..消费者.."
+ this.name);
flag = false;
this.notify();
}
}

// 生产者
class Producer implements Runnable {

private Resource res;

public Producer(Resource res) {
// TODO Auto-generated constructor stub
this.res = res;
}

@Override
public void run() {
// TODO Auto-generated method stub

while (true) {
res.set("+商品+");

}
}

}

// 消费者
class Consumer implements Runnable {

private Resource res;

public Consumer(Resource res) {
// TODO Auto-generated constructor stub
this.res = res;
}

@Override
public void run() {
// TODO Auto-generated method stub

while (true) {
res.out();

}
}

}