直接上代码

    /**
     * 将LocalDateTime 转换成Date
     * @param localDateTime 
     * @return
     */
    public static Date localDateTimeToDate(LocalDateTime localDateTime){
        final ZoneId zoneId = ZoneId.systemDefault();
        final ZonedDateTime zonedDateTime = localDateTime.atZone(zoneId);
        return Date.from(zonedDateTime.toInstant());
    }

    /**
     * 将 Date 转换成 LocalDateTime
     * @param date
     * @return
     */
    public static LocalDateTime dateToLocalDateTime(Date date){
        final ZoneId zoneId = ZoneId.systemDefault();
        final Instant instant = date.toInstant();
        return instant.atZone(zoneId).toLocalDateTime();
    }