废话不多说，直接上代码
//时间戳转LocalDateTime
public static LocalDateTime getLocalDateTime(long timestamp) {
Instant instant = Instant.ofEpochMilli(timestamp);
ZoneId zone = ZoneId.systemDefault();
return LocalDateTime.ofInstant(instant, zone);
}
//获取当月最后一天
public static LocalDateTime getLastDayOfCurrentMonth(LocalDateTime localDateTime) {
return localDateTime.with(TemporalAdjusters.lastDayOfMonth()).toLocalDate().atStartOfDay();
}
//获取当月第一天
public static LocalDateTime getFirstDayOfCurrentMonth(LocalDateTime localDateTime) {
return localDateTime.with(TemporalAdjusters.firstDayOfMonth()).toLocalDate().atStartOfDay();
}
//凌晨
public static LocalDateTime getMorning(LocalDateTime localDateTime) {
ZonedDateTime zonedDateTime = ZonedDateTime.of(localDateTime.toLocalDate().atStartOfDay(), ZoneId.systemDefault());
return zonedDateTime.toLocalDateTime();
}
//返回月份之间的月份
public static List<String> getMonthBetween(LocalDateTime localDateTime, int minMonth, int maxMonth) {
LocalDateTime min = localDateTime.withMonth(minMonth).with(TemporalAdjusters.firstDayOfMonth());
LocalDateTime max = localDateTime.withMonth(maxMonth).with(TemporalAdjusters.lastDayOfMonth());
List<String> result = new ArrayList<>();
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM");
while (min.isBefore(max)) {
result.add(min.format(formatter));
min = min.plusMonths(1);
}
return result;
}
