42 lines
1.4 KiB
Java
42 lines
1.4 KiB
Java
|
package jTest;
|
||
|
|
|
||
|
|
import java.util.concurrent.BrokenBarrierException;
|
||
|
|
import java.util.concurrent.CountDownLatch;
|
||
|
|
import java.util.concurrent.CyclicBarrier;
|
||
|
|
import java.util.concurrent.Phaser;
|
||
|
|
|
||
|
|
public class ConcurrentToolsExample {
|
||
|
|
public static void main(String[] args) throws InterruptedException, BrokenBarrierException {
|
||
|
|
CyclicBarrier cyclicBarrier = new CyclicBarrier(2);
|
||
|
|
CountDownLatch countDownLatch = new CountDownLatch(1);
|
||
|
|
Phaser phaser = new Phaser(1); // 初始注册线程数为1
|
||
|
|
|
||
|
|
new Thread(() -> {
|
||
|
|
try {
|
||
|
|
cyclicBarrier.await(); // 等待
|
||
|
|
// 执行任务
|
||
|
|
} catch (Exception e) {
|
||
|
|
e.printStackTrace();
|
||
|
|
}
|
||
|
|
}).start();
|
||
|
|
|
||
|
|
new Thread(() -> {
|
||
|
|
try {
|
||
|
|
countDownLatch.await(); // 等待
|
||
|
|
// 执行任务
|
||
|
|
} catch (InterruptedException e) {
|
||
|
|
Thread.currentThread().interrupt();
|
||
|
|
}
|
||
|
|
}).start();
|
||
|
|
|
||
|
|
// 到达并等待
|
||
|
|
// 执行任务
|
||
|
|
new Thread(phaser::arriveAndAwaitAdvance).start();
|
||
|
|
|
||
|
|
// 模拟一些前置操作
|
||
|
|
Thread.sleep(1000);
|
||
|
|
countDownLatch.countDown(); // 计数减一，允许等待的线程继续执行
|
||
|
|
cyclicBarrier.await(); // 释放等待的线程
|
||
|
|
phaser.register(); // 增加一个参与者
|
||
|
|
}
|
||
|
|
}
|