时间：2022-11-20 10:13:07 | 栏目：JAVA代码 | 点击：次
Object类中的wait和notify方法(生产者和消费者模式) 不是通过线程调用
生产者和消费者模式 生产线程和消费线程达到均衡
wait方法和notify方法建立在synchronized线程同步的基础之上
实现生产者和消费者模式 仓库容量为10
代码如下
import java.util.ArrayList;
public class Test_14 {
public static void main(String[] args) {
ArrayList list = new ArrayList();
Thread t1 = new Thread(new ProducerThread(list));
t1.setName("producer");
Thread t2 = new Thread(new ConsumerThread(list));
t2.setName("consumer");
t1.start();
t2.start();
}
}
//生产者线程
class ProducerThread implements Runnable{
private ArrayList arrayList;
public ProducerThread(ArrayList arrayList) {
this.arrayList = arrayList;
}
@Override
public void run() {
while (true) {
synchronized (arrayList) {
if (arrayList.size() > 9){
try {
arrayList.wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
arrayList.add(new Object());
System.out.println(Thread.currentThread().getName() + "---> 生产" + "---库存" + arrayList.size());
arrayList.notify();
}
}
}
}
//消费者线程
class ConsumerThread implements Runnable{
private ArrayList arrayList;
public ConsumerThread(ArrayList arrayList) {
this.arrayList = arrayList;
}
@Override
public void run() {
while (true){
synchronized (arrayList){
if (arrayList.size() < 9){
try {
arrayList.wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
arrayList.remove(0);
System.out.println(Thread.currentThread().getName() + "---> 消费" + "---库存" + arrayList.size());
arrayList.notify();
}
}
}
}