public class CyclicBarrierTest {
    // 自定义工作线程
    private static class Worker extends Thread {
        private CyclicBarrier cyclicBarrier;
        public Worker(CyclicBarrier cyclicBarrier) {
            this.cyclicBarrier = cyclicBarrier;
        }
        @Override
        public void run() {
            super.run();
            try {
                System.out.println(Thread.currentThread().getName() + "开始等待其他线程");
                cyclicBarrier.await();
                System.out.println(Thread.currentThread().getName() + "开始执行");
                // 工作线程开始处理，这里用Thread.sleep()来模拟业务处理
                Thread.sleep(1000);
                System.out.println(Thread.currentThread().getName() + "执行完毕");
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }
    public static void main(String[] args) {
        int threadCount = 3;
        CyclicBarrier cyclicBarrier = new CyclicBarrier(threadCount);
        for (int i = 0; i < threadCount; i++) {
            System.out.println("创建工作线程" + i);
            Worker worker = new Worker(cyclicBarrier);
            worker.start();
        }
    }
}