java8、jdk8判断两个日期包含多少天，多少个月

1、建立一个日期工具类：DateUtils

2、创建工具日期相差天数方法：between

3、实现between发放：/** * 比较两个时间相差的月份 * @param one * @param two * @return */ public Integer between(LocalDate one,LocalDate two) { return Period.between(one,two).getMonths(); }

4、在main方法中测试代码：public static void main(String[] args) { System.out.println(between(LocalDate.of(2017,10,1), LocalDate.no()));}

5、整个工具类的方法：package com.gwolf;import java.time.LocalDate稆糨孝汶;import java.time.Period;import java.time.format.DateTimeFormatter;public class DateUtils { /** * 比较两个时间相差的月份 * @param one * @param two * @return */ publicstaticInteger between(LocalDate one,LocalDate two) { return Period.between(one,two).getMonths(); } public static void main(String[] args) { System.out.println(between(LocalDate.of(2017,10,1), LocalDate.now())); }}

6、运行main方法查看结果：

7、更多的日期锟侯希哇处理函数请参考其他相关文章。package com.gwolf;import java.time.Instant;import java.time.LocalD锾攒揉敫ate;import java.time.Period;import java.time.format.DateTimeFormatter;import java.time.temporal.ChronoUnit;public class DateUtils { public static LocalDate plus(LocalDate localDate, int between,ChronoUnit chronoUnit) { return localDate.plus(between,chronoUnit); } public static void main(String[] args) { System.out.println(plus(LocalDate.now(),2,ChronoUnit.DAYS)); } /** * 格式化日期 * @param localDate * @param pattern * @return */ public static String parseDate(LocalDate localDate,String pattern) { DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern(pattern); return localDate.format(dateTimeFormatter); } /** * 比较两个时间相差的月份 * @param one * @param two * @return */ public static Integer between(LocalDate one,LocalDate two) { return Period.between(one,two).getMonths(); } /** * 字符串转化成日期 * @param strDate * @param pattern * @return */ public static LocalDate formatDate(String strDate,String pattern) { DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern(pattern); return LocalDate.parse(strDate,dateTimeFormatter); }}