java8 time计算时间差

最近使用Java8编写代码时，需要计算时间差，现整理如下

前言

本次使用了Java8提供的ChronoUnit工具类，它主要提供以下几种时间维度

枚举

枚举提供一个betwwen方法，接收两个参数，都是Temporal类型。
Temporal是LocalDate、LocalTime、LocalDateTime的声明接口，因此可以直接传递我们常用的时间类。

示例

LocalDateTime time1 = LocalDateTime.of(2019, 11, 1, 0, 0);
LocalDateTime time2 = LocalDateTime.of(2019, 12, 2, 0, 0);

System.out.println("===输出秒===");
System.out.println(ChronoUnit.SECONDS.between(time1, time2));
System.out.println("===========");

System.out.println("===输出小时===");
System.out.println(ChronoUnit.HOURS.between(time1, time2));
System.out.println("===========");

System.out.println("===输出半天===");
System.out.println(ChronoUnit.HALF_DAYS.between(time1, time2));
System.out.println("===========");

System.out.println("===输出天===");
System.out.println(ChronoUnit.DAYS.between(time1, time2));
System.out.println("===========");

System.out.println("===输出周===");
System.out.println(ChronoUnit.WEEKS.between(time1, time2));
System.out.println("===========");

System.out.println("===输出月===");
System.out.println(ChronoUnit.MONTHS.between(time1, time2));
System.out.println("===========");

System.out.println("===输出年===");
System.out.println(ChronoUnit.YEARS.between(time1, time2));
System.out.println("===========");

输出结果

===输出秒===
2678400
===========
===输出小时===
744
===========
===输出半天===
62
===========
===输出天===
31
===========
===输出周===
4
===========
===输出月===
1
===========
===输出年===
0
===========

原文地址：https://www.cnblogs.com/fengzhentian/p/12054853.html