获取 几小时内、几天内、几周内、几月内

/**
 * 获取 几小时内、几天内、几周内、几月内
 * @param dateType
 * @param dateValue
 * @return
 */
public static LocalDateTime getDateType(Integer dateType,int dateValue){
    if(DateTypeEnum.HOURS.getCode().equals(dateType)){
        return   differentHours(dateValue,LocalDateTime.now());
    }else if(DateTypeEnum.DAY.getCode().equals(dateType)){
        return   differentDays(dateValue,LocalDateTime.now());
    }else  if(DateTypeEnum.WEK.getCode().equals(dateType)){
        return   differentWeek(dateValue,LocalDate.now());
    }else  if(DateTypeEnum.MONTH.getCode().equals(dateType)){
        return   differentMonth(dateValue,LocalDate.now());
    }
    return  null;
}

/**
 * 当前时间几小时内
 * @param dateValue
 * @return
 */
public  static LocalDateTime differentHours(Integer dateValue, LocalDateTime currentTime) {
    dateValue = dateValue - 1;
    return currentTime.plusHours(-dateValue);
}

/**
 * 当前时间几天内
 * @param dateValue
 * @return
 */
public  static LocalDateTime differentDays(Integer dateValue,LocalDateTime currentTime) {
    dateValue = dateValue - 1;
    return currentTime.plusDays(-dateValue);
}

/**
 * 获取几周内的时间
 * @param dateValue
 * @return
 */
public static  LocalDateTime differentWeek(Integer dateValue,LocalDate currentTime ){
    dateValue = dateValue - 1;
    return getStartDayOfWeek(currentTime).plusWeeks( - dateValue);
}

/**
 * 获取几月内的时间
 * @param dateValue
 * @return
 */
public static  LocalDateTime differentMonth(Integer dateValue,LocalDate currentTime ){
    dateValue = dateValue - 1;
    return getStartDayOfMonth(currentTime).plusMonths(-dateValue);
}


/**
 * 本周开始 支持跨年
 * @param today
 * @return
 */
public static LocalDateTime getStartDayOfWeek(LocalDate today) {
    LocalDate resDate = LocalDate.now();
    if (today == null) {
        today = resDate;
    }
    DayOfWeek week = today.getDayOfWeek();
    int value = week.getValue();
    resDate = today.minusDays(value - 1);
    LocalDateTime localDateTime = LocalDateTime.parse(resDate.toString()  + minDate);
    return localDateTime;
}


/**
 * 本月的开始
 * @param today
 * @return
 */
public static LocalDateTime getStartDayOfMonth(LocalDate today) {
    LocalDate resDate = LocalDate.now();
    if (today == null) {
        today = resDate;
    }
    Month month = today.getMonth();
    resDate = LocalDate.of(today.getYear(), month, 1);
    LocalDateTime localDateTime = LocalDateTime.parse(resDate.toString() + minDate);
    return localDateTime;
}