使用LocalDate计算两个日期相差多少天 及String date与localdate转换

LocalDateTime dateTime = LocalDateTime
    .ofInstant(Instant.ofEpochMilli(1528197133157L), ZoneId.systemDefault());
LocalDate now = LocalDate.now();
Period between = Period.between(dateTime.toLocalDate(), now);
long between1 = ChronoUnit.DAYS.between(dateTime.toLocalDate(), now);
long between2 = ChronoUnit.MONTHS.between(dateTime.toLocalDate(), now);

使用Period的话有坑

.

需要替换为

String 类型转localDate 
LocalDate beginDateTime = LocalDate.parse(beginDate, DateTimeFormatter.ofPattern(“yyyy-MM-dd”));

date类型转localDate 
Date dates = new SimpleDateFormat(“yyyyMM”).parse(cycle); 
Instant instant = dates.toInstant(); 
ZoneId zoneId = ZoneId.systemDefault(); 
LocalDate localDate = instant.atZone(zoneId).toLocalDate();

转载来自

https://blog.csdn.net/fcfwang_net/article/details/86106617

https://blog.csdn.net/wanzhix/article/details/78922752 

https://blog.csdn.net/xielaixiaohun/article/details/78424338