黑马程序员 java基础Thread生产者消费者-优快云博客

本文链接：https://blog.youkuaiyun.com/lazy_xia/article/details/22457335

本文介绍了一个使用Java实现的生产者消费者模式案例。通过共享资源类`Resource`协调多个生产者和消费者线程间的同步操作。该模式展示了如何利用`synchronized`关键字及`wait()`和`notify()`方法来实现线程间的通信。

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/**
* 生产者消费者通信
*
* @author lazy
*
*/

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

public synchronized void set(String name) {
if (flag)
try {
this.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 {
this.wait();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.println(Thread.currentThread().getName() + " 消费者"
+ this.name);

flag = true;
this.notify();
}
}

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。。。");
}
}

}

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();
}
}

}

public class ThradTest9 {

/**
* @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);

Thread t1 = new Thread(pro);
Thread t2 = new Thread(con);
t1.start();
t2.start();
}

}