Java - 如何在使用Joda Time Jar时计算准确的时差 [英] Java-How to calculate accurate time difference while using Joda Time Jar

问题描述

我遇到了从下载的Joda时间罐的问题http://sourceforge.net/projects/joda-time/files/joda-time/2.2/ 。我可以使用以下代码片段获得结果

I'm having problem with Joda time jar that I downloaded from http://sourceforge.net/projects/joda-time/files/joda-time/2.2/ . I can get the result when I use the following snippet

static void timeDifferencewithJoda()  {

    String dateStart = "01/14/2012 09:29:58";
    String dateStop = "01/15/2012 10:31:48";

    SimpleDateFormat format = new SimpleDateFormat("MM/dd/yyyy HH:mm:ss");

    Date d1 = null;
    Date d2 = null;

    try {
        d1 = format.parse(dateStart);
        d2 = format.parse(dateStop);

        DateTime dt1 = new DateTime(d1);
        DateTime dt2 = new DateTime(d2);

        System.out.print(Days.daysBetween(dt1, dt2).getDays() + " days, ");
        System.out.print(Hours.hoursBetween(dt1, dt2).getHours() % 24 + " hours, ");
        System.out.print(Minutes.minutesBetween(dt1, dt2).getMinutes() % 60 + " minutes, ");
        System.out.print(Seconds.secondsBetween(dt1, dt2).getSeconds() % 60 + " seconds.");

     } catch (Exception e) {
        e.printStackTrace();
     }

}

结果是

1 days, 1 hours, 1 minutes, 50 seconds.

但是我面对这个时差的冲突。

But I face the confliction with this time difference .

01/14/2012 09:29:58

01/15/2012 10:31:48

这两个时间已经被声明，但没有迹象表明像AM或PM这样的时期。即，时间可能是早晨或晚上。如何得到确切的时间差？

here the two time has been declared ,but there's no indication to the period like AM or PM. ie., The time may be morning or evening .How to I get exact time difference ?

有关这方面的任何帮助将是有用的。

Any help regarding this will be useful.

推荐答案

使用 Joda格式化程序（非AM / PM）

Using Joda formatter (non AM/PM)

  final String dateStart = "01/14/2012 09:29:58";
  final String dateStop = "01/15/2012 10:31:48";
  final DateTimeFormatter format = DateTimeFormat.forPattern("MM/dd/yyyy HH:mm:ss");
  final DateTime dt1 = format.parseDateTime(dateStart);
  final DateTime dt2 = format.parseDateTime(dateStop);

  System.out.print(Days.daysBetween(dt1, dt2).getDays() + " days, ");
  System.out.print(Hours.hoursBetween(dt1, dt2).getHours() % 24 + " hours, ");
  System.out.print(Minutes.minutesBetween(dt1, dt2).getMinutes() % 60 + " minutes, ");
  System.out.print(Seconds.secondsBetween(dt1, dt2).getSeconds() % 60 + " seconds.");    

使用 Joda格式化程序（与AM / PM）

Using Joda formatter (with AM/PM)

  final String dateStart = "01/14/2012 09:29:58 AM";
  final String dateStop = "01/15/2012 10:31:48 PM";
  final DateTimeFormatter format = DateTimeFormat.forPattern("MM/dd/yyyy hh:mm:ss a");
  final DateTime dt1 = format.parseDateTime(dateStart);
  final DateTime dt2 = format.parseDateTime(dateStop);

  System.out.print(Days.daysBetween(dt1, dt2).getDays() + " days, ");
  System.out.print(Hours.hoursBetween(dt1, dt2).getHours() % 24 + " hours, ");
  System.out.print(Minutes.minutesBetween(dt1, dt2).getMinutes() % 60 + " minutes, ");
  System.out.print(Seconds.secondsBetween(dt1, dt2).getSeconds() % 60 + " seconds.");  

计算与周期

Calculate units between with Period

  final Period period = new Period(dt1, dt2);
  System.out.print(period.getDays() + " days, ");
  System.out.print(period.getHours() + " hours, ");
  System.out.print(period.getMinutes() + " minutes, ");
  System.out.print(period.getSeconds() + " seconds.");

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