CountDownLatch模拟高并发测试代码

时间:2023-03-10 07:23:33
CountDownLatch模拟高并发测试代码

直接上代码进行验证吧

/**
* 通过countdownlatch的机制,来实现并发运行
* 模拟200个并发测试
* @author ll
* @date 2018年4月18日 下午3:55:59
*/
public class CountDownLatchTest { private static final int threadnum = 200; public CountDownLatch cd = new CountDownLatch(threadnum); @Test
public void TestCountDownlatch() throws InterruptedException{
for (int i = 0; i < threadnum; i++) {
new Thread(new Request()).start();
cd.countDown();
}
/*
* 在多线程编程中,Thread.CurrentThread 表示获取当前正在运行的线程,join方法是阻塞当前调用线程,
* 直到某线程完全执行才调用线程才继续执行,
* 如果获取的当前线程是主线程,调用Join方法,阻塞主线程
*/
Thread.currentThread().join(); } class Request implements Runnable{ @Override
public void run() {
try {
cd.await();
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println(Thread.currentThread()+"get one,"+System.currentTimeMillis());
} } }