java时间操作:获取当天剩余时间_java 当天剩余时间-优快云博客

这篇博客展示了使用Apache Commons Lang、Joda-Time和Java 8的LocalDateTime计算当天剩余毫秒和秒的三种不同方法。通过实例代码详细解释了如何获取从当前时间到今天结束的剩余时间，对于理解日期时间处理有帮助。

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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);
}
}