用wait和notify实现生产者消费者模式示例代码
import java.util.Date;
import java.util.LinkedList;
/**
* 用wait和notify实现生产者消费者模式
*/
public class ProducerConsumerModel {
public static void main(String[] args) {
EventStorage storage = new EventStorage();
Producer producer = new Producer(storage);
Consumer consumer = new Consumer(storage);
new Thread(producer).start();
new Thread(consumer).start();
}
}
/**
* 生产者
*/
class Producer implements Runnable {
private EventStorage storage;
public Producer(EventStorage storage) {
this.storage = storage;
}
@Override
public void run() {
for (int i = 0; i < 100; i++) {
storage.put();
}
}
}
/**
* 消费者
*/
class Consumer implements Runnable {
private EventStorage storage;
public Consumer(EventStorage storage) {
this.storage = storage;
}
@Override
public void run() {
for (int i = 0; i < 100; i++) {
storage.take();
}
}
}
/**
* 仓库
*/
class EventStorage {
private int maxSize;
private LinkedList<Date> storage;
public EventStorage() {
maxSize = 10;
storage = new LinkedList<>();
}
public synchronized void put() {
while (storage.size() == maxSize) {
try {
wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
storage.add(new Date());
System.out.println("仓库里有了" + storage.size() + "个产品。");
notify();
}
public synchronized void take() {
while (storage.size() == 0) {
try {
wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
System.out.println("拿到了" + storage.poll() + ",现在仓库还剩下" + storage.size());
notify();
}
}
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