从秒到日期的时间转换 [英] Time conversion from seconds to date issue

问题描述

我有以下Long变量，以秒为单位保存纪元值，我正尝试将其转换为Date.

I have the following Long variable holding epoch value in seconds, which I'm trying to convert into a Date.

val seconds = 1341855763000
val date = Date(TimeUnit.SECONDS.toMillis(seconds))

输出比我预期的要远.我哪里出问题了?

The output is way off than I expected. Where did I go wrong?

Actual: Wed Sep 19 05:26:40 GMT+05:30 44491
Expected: Monday July 9 11:12:43 GMT+05:30 2012

推荐答案

输出比我预期的要远.我哪里出问题了?

The output is way off than I expected. Where did I go wrong?

Actual: Wed Sep 19 05:26:40 GMT+05:30 44491
Expected: Monday July 9 11:12:43 GMT+05:30 2012

该值已经在milliseconds中，并且使用TimeUnit.SECONDS.toMillis(seconds)您将其错误地乘以1000.

The value is already in milliseconds and by using TimeUnit.SECONDS.toMillis(seconds) you are wrongly multiplying it by 1000.

import java.time.Instant;

public class Main {
    public static void main(String[] args) {
        Instant instant = Instant.ofEpochMilli(1341855763000L);
        System.out.println(instant);
    }
}

输出:

2012-07-09T17:42:43Z

使用旧版java.util.Date:

import java.util.Date;

public class Main {
    public static void main(String[] args) {
        System.out.println(new Date(1341855763000L));
    }
}

输出:

Mon Jul 09 18:42:43 BST 2012

我建议您从过时且容易出错的java.util日期时间API和SimpleDateFormat切换到跟踪:日期时间了解更多有关现代日期时间API的信息. a> .

I recommend you switch from the outdated and error-prone java.util date-time API and SimpleDateFormat to the modern java.time date-time API and the corresponding formatting API (package, java.time.format). Learn more about the modern date-time API from Trail: Date Time.

这篇关于从秒到日期的时间转换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！