我如何格式化java.time.Duration mm:ss [英] How do i format a java.time.Duration mm:ss

问题描述

我有一个java.time.Duration，我想以mm:ss的形式输出它.似乎无法使用DateTimeFormatter，因为它仅接受LocalTime，ZonedTIme ectera

I have a java.time.Duration and I want to output it in the form of mm:ss. It doesnt seem possible to use DateTimeFormatter since that only accepts LocalTime, ZonedTIme ectera

所以我这样做，在90秒内可以给出1:30，但在66秒内可以给出1:6，而我想要1:06

So I did it like this, works fine for 90 seconds give 1:30, but for 66 seconds gives 1:6 whereas I want 1:06

Duration duration = Duration.ofSeconds(track.getLength().longValue());
System.out.println(duration.toMinutes() + ":" + duration.minusMinutes(duration.toMinutes()).getSeconds());

推荐答案

您可以创建一个 LocalTime 来表示从午夜(00:00)开始的持续时间，并使用 DateTimeFormatter :

You could create a LocalTime representing the duration from midnight (00:00) and use a DateTimeFormatter:

LocalTime t = LocalTime.MIDNIGHT.plus(duration);
String s = DateTimeFormatter.ofPattern("m:ss").format(t);

请注意，这只能持续不到一小时.

Note that this will only work for durations less than one hour.

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