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