在 Java 中，如何获得两个日期之间的秒差? [英] In Java, how do I get the difference in seconds between 2 dates?

问题描述

Java 类库有一个名为 DateTime 的类.DateTime 有这个方法:

The Java class library has a class named DateTime. DateTime has this method:

int daysBetween(DateTime other)

返回此参数与参数之间的天数.它没有方法

which returns the number of days between this and the parameter. It doesn't have a method

int secondsBetween(DateTime other)

我正好需要.有没有类似DateTime但是有这样的方法的类?

which I happen to need. Is there a class which is similar to DateTime but has such a method?

推荐答案

不熟悉 DateTime...

Not familiar with DateTime...

如果您有两个日期，您可以对它们调用 getTime 以获取毫秒，获取差异并除以 1000.例如

If you have two Dates you can call getTime on them to get millseconds, get the diff and divide by 1000. For example

Date d1 = ...;
Date d2 = ...;
long seconds = (d2.getTime()-d1.getTime())/1000;

如果你有日历对象，你可以调用

If you have Calendar objects you can call

c.getTimeInMillis()

做同样的事情

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