Joda-Time几个用法小记

╰半橙微兮° 2022-09-25 12:19 156阅读 0赞

### 1, 获取每天的零点 ###

DateTime dt=new DateTime().withMillisOfDay(0);
    System.out.println(dt.toString("yyyy-MM-dd HH:mm:ss"));
    
    //结果
    2016-09-09 00:00:00

### 2, 在每天的6:30处理一些东西 ###

DateTime dt=new DateTime().withHourOfDay(6).withMinuteOfHour(30).withSecondOfMinute(0);
    System.out.println(dt.toString("yyyy-MM-dd HH:mm:ss"));
    //结果
    2016-09-09 06:30:00

### 3, 在每月的7号的6:30处理一些东西 ###

DateTime dt=new DateTime().withDayOfMonth(7).withHourOfDay(6).withMinuteOfHour(30).withSecondOfMinute(0);
    System.out.println(dt.toString("yyyy-MM-dd HH:mm:ss"));
    //结果
    2016-09-07 06:30:00

### 4, 在每年的8月的7号的6:30处理一些东西 ###

DateTime dt=new DateTime().withMonthOfYear(8).withDayOfMonth(7).withHourOfDay(6).withMinuteOfHour(30).withSecondOfMinute(0);
    System.out.println(dt.toString("yyyy-MM-dd HH:mm:ss"));
    //结果
    2016-08-07 06:30:00

### 5, 获取每个月的第一天和最后一天 ###

DateTime dateTime=new DateTime();
    System.out.println(dateTime.dayOfMonth().withMinimumValue().dayOfMonth().get());
    System.out.println(dateTime.dayOfMonth().withMaximumValue().dayOfMonth().get());
    //结果
    1
    30

### 6, 获取每天的零点的下一天零点 ###

DateTime dt=new DateTime().withMillisOfDay(0).plusDays(1);
    System.out.println(dt.toString("yyyy-MM-dd HH:mm:ss"));

### 7, 获取日期差 ###

DateTime start=new DateTime(2015,5,4,12,20);
            DateTime start=new DateTime(2015,5,4,12,20);
            DateTime end=new DateTime(2015,5,6,3,10);
            Period period=new Period(start,end);
            System.out.println("month："+period.getMonths());
            System.out.println("days："+period.getDays());
            System.out.println("hours："+period.getHours());
            System.out.println("minutes："+period.getMinutes());
            System.out.println("second："+period.getSeconds());
    //结果
    month：0
    days：1
    hours：14
    minutes：50
    second：0

### 8, 单独获取天，小时，分钟，秒 ###

DateTime start=new DateTime(2015,5,4,12,20);
            DateTime end  =new DateTime(2015,5,5,12,00);
            System.out.println(Days.daysBetween(start,end).getDays());
            System.out.println(Hours.hoursBetween(start,end).getHours());
            System.out.println(Minutes.minutesBetween(start,end).getMinutes());
            System.out.println(Seconds.secondsBetween(start,end));

### 9, 时间判断是否在某个范围以及获取时间差的毫秒 ###

DateTime start=new DateTime(2015,5,4,12,20);
            DateTime end  =new DateTime(2015,5,5,12,00);
            Interval interval=new Interval(start,end);
            System.out.println(interval.contains(new DateTime(2015,5,5,11,00)));
    
            Duration duration=new Duration(start,end);
            System.out.println(duration.getStandardHours());

#### 官网连接 ####

[http://www.joda.org/joda-time/userguide.html][http_www.joda.org_joda-time_userguide.html]

[http_www.joda.org_joda-time_userguide.html]: http://www.joda.org/joda-time/userguide.html