Joda-Time学习

Joda-Time：

详细的介绍

http://www.ibm.com/developerworks/cn/java/j-jodatime.html

实例：

直接上实例

package com.mylearn.j2ee.jodatime;

import org.joda.time.DateTime;

import org.joda.time.DateTimeFieldType;

import java.util.Calendar;

import java.util.Date;

import java.util.Locale;

/**

 * Created by IntelliJ IDEA.

 * User: yingkuohao

 * Date: 13-12-31

 * Time: 上午10:44

 * CopyRight:360buy

 * Descrption:

 * http://www.ibm.com/developerworks/cn/java/j-jodatime.html

 * joda-time

 * To change this template use File | Settings | File Templates.

 */

public class JodaTimeTest {

    public static void main(String args[]) {

        //1.随便构造一个日期

        DateTime dateTime = new DateTime(2000, 1, 1, 0, 0, 0, 0);

        System.out.println(dateTime.toString("yyyy-MM-dd HH:mm:ss"));

        //2.获取当前日期

        DateTime now = DateTime.now();

        System.out.println(now.toString("yyyy-MM-dd HH:mm:ss"));

        //3.根据当前日期操作，获取当前日期的一些属性

        int hour = now.get(DateTimeFieldType.clockhourOfDay());

        int dayOfYear = now.dayOfYear().get();

        int dayOfMonth = now.dayOfMonth().get();

        int dayOfWeek = now.dayOfWeek().get();

        System.out.println("hour:--" + hour + "dayOfYear:--" + dayOfYear + "--dayOfMonth:--" + dayOfMonth + "--dayOfWeek:--" + dayOfWeek);

        int hourOfDay = now.hourOfDay().get();

        int millisOfDay = now.millisOfDay().get();

        int millisOfSecond = now.millisOfSecond().get();

        int era = now.era().get();

        System.out.println("--hourOfDay:--" + hourOfDay + "millisOfDay:--" + millisOfDay + "--millisOfSecond:--" + millisOfSecond + "--era--" + era);

        //4. 计算当前日期的前后

        DateTime yesterday = now.minusDays(1);

        DateTime tommorrow = now.plusDays(1);

        System.out.println("yesterday:" + yesterday.toString("yyyy-MM-dd HH:mm:ss"));

        System.out.println("tommorrow:" + tommorrow.toString("yyyy-MM-dd HH:mm:ss"));

        //5. 计算当前日期1年前的1个月前一周的前一天前一小时前10分钟的前一秒时间

        DateTime aDate = now.minusYears(1).minusMonths(1).minusWeeks(1).minusDays(1).minusHours(1).minusMinutes(10).minusSeconds(1);

        System.out.println("aDate:" + aDate.toString("yyyy-MM-dd HH:mm:ss"));

        //5.1与minus对应的plus方法，计算未来的时间

        DateTime aFurtureTime = now.plusYears(1).plusMonths(1).plusWeeks(1).plusDays(1).plusHours(1).plusMinutes(10).plusSeconds(1);

        System.out.println("aFurtureTime:" + aFurtureTime.toString("yyyy-MM-dd HH:mm:ss"));

        //6. 日期的比较

        boolean isBefore = now.isBefore(tommorrow);

        boolean isAfter = now.isAfter(yesterday);

        boolean isNow = now.isEqualNow();

        System.out.println("isBefore=" + isBefore + ",isAfter=" + isAfter + "isNow=" + isNow);

        //7. 日期和java API的互操作性

        Calendar calendar = now.toCalendar(Locale.getDefault());

        System.out.println("calendare date:" + calendar.getTime());

        Date curDate = now.toDate();

        System.out.println("java.util.date=" + curDate);

        //8. 动态给日期赋值

        DateTime curMonth = now.withMonthOfYear(10).withDayOfMonth(1).withHourOfDay(12).withMinuteOfHour(0).withSecondOfMinute(0);

        System.out.println("dateTime1:" + curMonth.toString("yyyy-MM-dd HH:mm:ss"));

    }

}