获得一天最小和最大毫秒数

// 获得某天最大时间 2017-10-15 23:59:59
public static Date getEndOfDay(Date date) {
    LocalDateTime localDateTime = LocalDateTime.ofInstant(Instant.ofEpochMilli(date.getTime()), ZoneId.systemDefault());;
    LocalDateTime endOfDay = localDateTime.with(LocalTime.MAX);
    return Date.from(endOfDay.atZone(ZoneId.systemDefault()).toInstant());
}

// 获得某天最小时间 2017-10-15 00:00:00
public static Date getStartOfDay(Date date) {
    LocalDateTime localDateTime = LocalDateTime.ofInstant(Instant.ofEpochMilli(date.getTime()), ZoneId.systemDefault());
    LocalDateTime startOfDay = localDateTime.with(LocalTime.MIN);
    return Date.from(startOfDay.atZone(ZoneId.systemDefault()).toInstant());
}