Java获取当天剩余时间的几种方法

雨点打透心脏的1/2处 2022-07-14 14:19 372阅读 0赞

三种获取当天剩余时间的简洁方式，分别使用DateUtils、DateTime和LocalDateTime，有时间再详解这三个类的更多方法。下面是编写的代码，有更多好的方式，欢迎留言。

import org.apache.commons.lang.time.DateUtils;
    import org.joda.time.DateTime;
    import org.joda.time.Duration;
    import org.junit.Test;
    
    import java.time.LocalDateTime;
    import java.time.temporal.ChronoUnit;
    import java.util.Calendar;
    
    /** * Created by Administrator on 2016/12/12. */
    public class TimeTest {
    
        @Test
        public void getTime() {
    
            //方法一
            long milliSecondsLeftToday = 86400000 - DateUtils.getFragmentInMilliseconds(Calendar.getInstance(), Calendar.DATE);
            long secondsLeftToday = 86400 - DateUtils.getFragmentInSeconds(Calendar.getInstance(), Calendar.DATE);
            System.out.println("当天剩余毫秒1：" + milliSecondsLeftToday);
            System.out.println("当天剩余秒1：" + secondsLeftToday);
    
    
            //方法二
            DateTime dateTime = new DateTime().millisOfDay().withMaximumValue();
            long millSeconds2 = new Duration(new DateTime(), dateTime).getMillis();
            long count = new Duration(new DateTime(), dateTime).getStandardSeconds();
            System.out.println("当天剩余毫秒2：" + millSeconds2);
            System.out.println("当天剩余秒2：" + count);
    
    
            //方法三:LocalDateTime和ChronoUnit为1.8新增
            LocalDateTime midnight = LocalDateTime.now().plusDays(1).withHour(0).withMinute(0).withSecond(0).withNano(0);
            long millSeconds = ChronoUnit.MILLIS.between(LocalDateTime.now(),midnight);
            long seconds = ChronoUnit.SECONDS.between(LocalDateTime.now(), midnight);
            System.out.println("当天剩余毫秒3：" + millSeconds);
            System.out.println("当天剩余秒3：" + seconds);
    
        }
    }