StopWatch 统计时间

kevin_cat

已于 2023-08-17 10:40:24 修改

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文章标签： java 服务器前端

于 2023-08-17 10:40:04 首次发布

本文链接：https://blog.youkuaiyun.com/kevin_cat/article/details/132335865

package com.example.dyreportapi.util;
import org.springframework.util.StopWatch;
/**
 * @Author：Kevin
 * @Date：2023/8/17 10:28
 */
public class StopWatchTest {

    public static void main(String[] args) {
        StopWatch stopWatch = new StopWatch("字符串操作时间统计");
        stopWatch.start("统计字符串长度");
        String str = "hello world";
        int len = str.length();
        stopWatch.stop();
        System.out.println("task count:" + stopWatch.getTaskCount());
        System.out.println("last task name:" + stopWatch.getLastTaskName());
        System.out.println("total time:" + stopWatch.getTotalTimeMillis() + " ms");
        System.out.println("last task time:" + stopWatch.getLastTaskTimeMillis() + " ms");
        stopWatch.start("将字符串转换成大写");
        String upper = str.toUpperCase();
        stopWatch.stop();
        System.out.println("task count:" + stopWatch.getTaskCount());
        System.out.println("last task name:" + stopWatch.getLastTaskName());
        System.out.println("total time:" + stopWatch.getTotalTimeMillis() + " ms");
        System.out.println("last task time:" + stopWatch.getLastTaskTimeMillis() + " ms");
        stopWatch.start("将字符串转换成小写");
        String lower = str.toLowerCase();
        stopWatch.stop();

        System.out.println("task count:" + stopWatch.getTaskCount());
        System.out.println("last task name:" + stopWatch.getLastTaskName());
        System.out.println("total time:" + stopWatch.getTotalTimeMillis() + " ms");
        System.out.println("last task time:" + stopWatch.getLastTaskTimeMillis() + " ms");
    }
}