CyclicBarrier使用

最新推荐文章于 2024-11-08 17:17:44 发布

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本文深入探讨了Java中CyclicBarrier类的使用方法及其实现原理，通过具体实例展示了如何利用CyclicBarrier来同步多个线程，直到所有线程到达指定的屏障点后继续执行，适用于需要周期性同步任务的场景。

package com.example.sina.thread;

import java.util.concurrent.*;

public class CyclicBarrierTest {

   public static void main(String[] args) throws InterruptedException {

       CyclicBarrier cyclicBarrier = new CyclicBarrier(4, new Runnable() {
           @Override
           public void run() {
               System.out.println("发车了");
           }
       });
       System.out.println(cyclicBarrier.getParties());

       for (int i = 0; i < cyclicBarrier.getParties(); i++) {
           Thread thread = new Thread(new CyclicWorker(cyclicBarrier));
           thread.start();
       }
   }

   static class CyclicWorker implements Runnable {

       private CyclicBarrier cyclicBarrier;

       CyclicWorker(CyclicBarrier cyclicBarrier) {
           this.cyclicBarrier = cyclicBarrier;
       }

       @Override
       public void run() {
           for (int i = 1; i < 5; i++) {
               System.out.println("乘客：" + i);
               try {
                   cyclicBarrier.await();
               } catch (InterruptedException e) {
                   e.printStackTrace();
               } catch (BrokenBarrierException e) {
                   e.printStackTrace();
               }
           }
       }
   }
}