package JUC.condition;
import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
/**
* @author HuangHaiyang
* @date 2020/07/02
* @description: description
* @version: 1.0.0
*/
public class Condition_Plus {
public static void main(String[] args) {
Data3 data = new Data3();
new Thread(() -> {
for (int i = 0; i < 10; i++) {
data.printA();
}
}, "A").start();
new Thread(() -> {
for (int i = 0; i < 10; i++) {
data.printB();
}
}, "B").start();
new Thread(() -> {
for (int i = 0; i < 10; i++) {
data.printC();
}
}, "C").start();
}
}
class Data3 { // 资源类 Lock
private Lock lock = new ReentrantLock();
private Condition condition1 = lock.newCondition();
private Condition condition2 = lock.newCondition();
private Condition condition3 = lock.newCondition();
private int number = 1; // 1A 2B 3C
public void printA() {
lock.lock();
try {
// 业务,判断-> 执行-> 通知
while (number != 1) {
// 等待
condition1.await();
}
System.out.println(Thread.currentThread().getName() + "=>AAAAAAA");
// 唤醒,唤醒指定的人,B
number = 2;
condition2.signal();
} catch (Exception e) {
e.printStackTrace();
} finally {
lock.unlock();
}
}
public void printB() {
lock.lock();
try {
// 业务,判断-> 执行-> 通知
while (number != 2) {
condition2.await();
}
System.out.println(Thread.currentThread().getName() + "=>BBBBBBBBB");
// 唤醒,唤醒指定的人,c
number = 3;
condition3.signal();
} catch (Exception e) {
e.printStackTrace();
} finally {
lock.unlock();
}
}
public void printC() {
lock.lock();
try {
// 业务,判断-> 执行-> 通知
// 业务,判断-> 执行-> 通知
while (number != 3) {
condition3.await();
}
System.out.println(Thread.currentThread().getName() + "=>BBBBBBBBB");
// 唤醒,唤醒指定的人,c
number = 1;
condition1.signal();
} catch (Exception e) {
e.printStackTrace();
} finally {
lock.unlock();
}
}
}
condition精准唤醒
最新推荐文章于 2024-07-04 09:07:39 发布