Java 8：计算两个ZonedDateTime之间的差异 [英] Java 8: Calculate difference between two ZonedDateTime

问题描述

我正在尝试编写一种方法来打印两个 ZonedDateTime 之间的时差，以区别时区。

I'm trying to write a method to print the time difference between two ZonedDateTimes, regarding the difference between time zones.

我找到了一些解决方案，但都是用 LocalDateTime 编写的。

I found some solutions but all of them were written to work with LocalDateTime.

推荐答案

ChronoUnit 之间的方法。

此方法将这些时间转换为相同的区域（区域与第一个参数），之后，调用直到在 Temporal 界面中声明的方法： （d1，d2）; $（$）

You can use method between from ChronoUnit.
This method converts those times to same zone (zone from the first argument) and after that, invokes until method declared in Temporal interface:

static long zonedDateTimeDifference(ZonedDateTime d1, ZonedDateTime d2, ChronoUnit unit){
    return unit.between(d1, d2);
}

既然 ZonedDateTime 和 LocalDateTime 实现 Temporal 界面，您也可以为这些日期时间类型编写通用方法：

Since both ZonedDateTime and LocalDateTime implements Temporal interface, you can write also universal method for those date-time types:

static long dateTimeDifference(Temporal d1, Temporal d2, ChronoUnit unit){
    return unit.between(d1, d2);
}

但请记住，调用此方法可以混合 LocalDateTime 和 ZonedDateTime 导致 DateTimeException 。


希望它有帮助。

But keep in mind, that invoking this method for mixed LocalDateTime and ZonedDateTime leads to DateTimeException.

Hope it helps.

这篇关于Java 8：计算两个ZonedDateTime之间的差异的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！