Sping Boot计时器
用来统计任务的耗时
1、进入run方法，其中StopWatch就是计时器
2、计时器的使用
@RunWith(SpringRunner.class)
@SpringBootTest
public class StopWatchTest {
@Test
public void testStopWatch() throws InterruptedException {
StopWatch myWatch = new StopWatch("myWatch");
myWatch.start("task1");
Thread.sleep(2000L);
myWatch.stop();
myWatch.start("task2");
Thread.sleep(3000L);
myWatch.stop();
myWatch.start("task3");
Thread.sleep(1000L);
myWatch.stop();
System.out.println( myWatch.prettyPrint());
}
}
运行testStopWatch方法，输出结果如下
StopWatch ‘myWatch‘: running time (millis) = 6003 ----------------------------------------- ms % Task name ----------------------------------------- 02000 033% task1 03002 050% task2 01001 017% task3
原文：https://www.cnblogs.com/linlf03/p/12371134.html