Java获取当天剩余时间的几种方法

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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);    }}

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