操作时间的工具API DateTime;

刺骨的言语ヽ痛彻心扉 2021-11-11 01:26 274阅读 0赞

1.官网地址 [https://www.joda.org/joda-time/][https_www.joda.org_joda-time]

2.依赖jar包

<dependency>
        <groupId>joda-time</groupId>
        <artifactId>joda-time</artifactId>
        <version>2.10.1</version>
    </dependency>

3.测试代码  导这个包  import org.joda.time.DateTime

SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            //当前时间  2019-08-04 00:27:45  minus方法根据当前时间减  plus方法根据当前时间加
            Date date1=new DateTime().minusDays(3).toDate();  //2019-08-01 00:27:45 减3天
            Date date2=new DateTime().minusHours(4).toDate(); //2019-08-03 20:27:45 减4小时
            Date date3=new DateTime().minusMonths(3).toDate();//2019-05-04 00:27:45   减3个月
            Date date5=new DateTime().minusMinutes(3).toDate();//2019-08-04 00:24:45  减3分钟
            Date date6=new DateTime().minusSeconds(3).toDate();//2019-08-04 00:27:42   减3毫秒
            Date date7=new DateTime().minusWeeks(3).toDate();//2019-07-14 00:27:45   减3周
            Date date8=new DateTime().minusYears(3).toDate();//2016-08-04 00:27:45   减3年
            Calendar instance = Calendar.getInstance();
            DateTime dateTime1=new DateTime(new Date()); //构造DateTime对象,传Date或Calendar都行
            DateTime dateTime2=new DateTime(instance);  //不能直接format  DateTime对象,必须toDate
            System.out.println(sdf.format(dateTime1.toDate()));  //2019-08-04 00:42:45
            System.out.println(sdf.format(dateTime2.toDate()));  //2019-08-04 00:42:45
            int year = dateTime1.getYear();  //2019   年
            int month = dateTime1.getMonthOfYear();  //8   月
            int week = dateTime1.getDayOfWeek();   //7    星期几
            int hour = dateTime1.getMinuteOfHour();  //52  //分
            int second = dateTime1.getDayOfMonth();   //4   //天
            DateTime plusDays = dateTime1.plusDays(2);  //2019-8-06   //两天后
            DateTime dateTime = dateTime1.plusMonths(2); //  2019-10-06
            int century = dateTime1.getEra();  //1
            int era = dateTime1.getWeekyear();  //2019
            DateTime withYear = dateTime1.withYear(2000);  //2000-08-04 00:57:45  设置年份  月天时分秒为当前年份月天时分秒
            DateTime twoHoursLater=dateTime1.plusDays(2);  //2019-08-06 00:57:45

[https_www.joda.org_joda-time]: https://www.joda.org/joda-time/