从Java中的Epoch开始，获取天，周和月的数量 [英] Get the number of days, weeks, and months, since Epoch in Java

问题描述

我想从Java中获取Epoch之后的天数，周数，月数。

I'm trying to get the number of days, weeks, months since Epoch in Java.

Java Calendar类提供类似calendar.get（GregorianCalendar.DAY_OF_YEAR）或Calendar.get（GregorianCalendar.WEEK_OF_YEAR）的东西，这是一个好的开始，

The Java Calendar class offers things like calendar.get(GregorianCalendar.DAY_OF_YEAR), or Calendar.get(GregorianCalendar.WEEK_OF_YEAR), which is a good start but it doesn't do exactly what I need.

推荐答案

方案

您可以使用 Joda时间库轻松完成此操作 - 我使用它对于任何时间相关的，而不是使用标准的Java日期和日历类。看下面的例子使用库：

You can use the Joda Time library to do this pretty easily - I use it for anything time related other than using the standard Java Date and Calendar classes. Take a look at the example below using the library:

MutableDateTime epoch = new MutableDateTime();
epoch.setDate(0); //Set to Epoch time
DateTime now = new DateTime();

Days days = Days.daysBetween(epoch, now);
Weeks weeks = Weeks.weeksBetween(epoch, now);
Months months = Months.monthsBetween(epoch, now);

System.out.println("Days Since Epoch: " + days.getDays());
System.out.println("Weeks Since Epoch: " + weeks.getWeeks());
System.out.println("Months Since Epoch: " + months.getMonths());

当我运行这个我得到以下输出：

When I run this I get the following output:

Days Since Epoch: 15122
Weeks Since Epoch: 2160
Months Since Epoch: 496

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