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----
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-title: JodaTime常用方法
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-date: 2020-06-13
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-tags: Java
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-cover: https://static.jqwei.com/blog/img/IMG_3460.PNG
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-categories: 编程语言
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----
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-## Joda Time
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-
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-### 取整天的方法
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-``` java
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- DateTime now = new DateTime(); // 2016-02-26T16:51:28.749+08:00
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- now.dayOfWeek().roundCeilingCopy(); // 2016-02-27T00:00:00.000+08:00
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- now.dayOfWeek().roundFloorCopy(); // 2016-02-26T00:00:00.000+08:00
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- now.minuteOfDay().roundFloorCopy(); // 2016-02-26T16:51:00.000+08:00
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- now.secondOfMinute().roundFloorCopy(); // 2016-02-26T16:51:28.000+08:00
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-```
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-
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-
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-### 两个时间相差多少天
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-
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-``` java
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- DateTimeFormatter dateTimeFormatter = DateTimeFormat.forPattern("yyyy-MM-dd HH:mm:ss");
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- DateTime date1 = dateTimeFormatter.parseDateTime("2020-07-30 23:00:00").dayOfWeek().roundFloorCopy();
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- Date date = new Date();
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- DateTime date2 = new DateTime(date).dayOfWeek().roundFloorCopy();
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- System.out.println("时间2:"+date2.toString("yyyy-MM-dd HH:mm:ss"));
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- System.out.println("时间1:"+date1.toString("yyyy-MM-dd HH:mm:ss"));
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- System.out.println("时间相差:"+ Days.daysBetween(date1,date2).getDays()+" 天 " );
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-```
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