java时间操作:获取当天剩余时间

            mport 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);

    }
}