Java time date tool class

public class DateUtils extends org.apache.commons.lang3.time.DateUtils {<!-- -->
    public static String YYYY = "yyyy";

    public static String YYYY_MM = "yyyy-MM";

    public static String YYYY_MM_DD = "yyyy-MM-dd";

    public static String YYYYMMDDHHMMSS = "yyyyMMddHHmmss";

    public static String YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss";

    private static String[] parsePatterns = {<!-- -->
            "yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy-MM",
            "yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm", "yyyy/MM",
            "yyyy.MM.dd", "yyyy.MM.dd HH:mm:ss", "yyyy.MM.dd HH:mm", "yyyy.MM"};

    /**
     * Get the current Date type date
     *
     * @return Date() current date
     */
    public static Date getNowDate() {<!-- -->
        return new Date();
    }

    /**
     * Get the current date, the default format is yyyy-MM-dd
     *
     * @return String
     */
    public static String getDate() {<!-- -->
        return dateTimeNow(YYYY_MM_DD);
    }

    public static final String getTime() {<!-- -->
        return dateTimeNow(YYYY_MM_DD_HH_MM_SS);
    }

    public static final String dateTimeNow() {<!-- -->
        return dateTimeNow(YYYYMMDDHHMMSS);
    }

    public static final String dateTimeNow(final String format) {<!-- -->
        return parseDateToStr(format, new Date());
    }

    public static final String dateTime(final Date date) {<!-- -->
        return parseDateToStr(YYYY_MM_DD, date);
    }

    public static final String parseDateToStr(final String format, final Date date) {<!-- -->
        return new SimpleDateFormat(format).format(date);
    }

    public static final Date dateTime(final String ts, final String format) {<!-- -->
        try {<!-- -->
            return new SimpleDateFormat(format).parse(ts);
        } catch (ParseException e) {<!-- -->
            throw new RuntimeException(e);
        }
    }

    /**
     * Date path is year/month/day such as 2018/08/08
     */
    public static final String datePath() {<!-- -->
        Date now = new Date();
        return DateFormatUtils. format(now, "yyyy/MM/dd");
    }

    /**
     * Date path is year/month/day such as 20180808
     */
    public static final String dateTime() {<!-- -->
        Date now = new Date();
        return DateFormatUtils. format(now, "yyyyMMdd");
    }

    /**
     * Convert date string to date format
     */
    public static Date parseDate(Object str) {<!-- -->
        if (str == null) {<!-- -->
            return null;
        }
        try {<!-- -->
            return parseDate(str.toString(), parsePatterns);
        } catch (ParseException e) {<!-- -->
            return null;
        }
    }

    /**
     * Get server startup time
     */
    public static Date getServerStartDate() {<!-- -->
        long time = ManagementFactory.getRuntimeMXBean().getStartTime();
        return new Date(time);
    }

    /**
     * Calculate the difference in days
     */
    public static int differentDaysByMillisecond(Date date1, Date date2) {<!-- -->
        return Math.abs((int) ((date2.getTime() - date1.getTime()) / (1000 * 3600 * 24)));
    }

    /**
     * Compute the difference between two times
     */
    public static String getDatePoor(Date endDate, Date nowDate) {<!-- -->
        long nd = 1000 * 24 * 60 * 60;
        long nh = 1000 * 60 * 60;
        long nm = 1000 * 60;
        // long ns = 1000;
        // Get the difference in milliseconds between two times
        long diff = endDate.getTime() - nowDate.getTime();
        // Calculate the difference in days
        long day = diff / nd;
        // Calculate the difference in hours
        long hour = diff % nd / nh;
        // Calculate the difference in minutes
        long min = diff % nd % nh / nm;
        // Calculate the difference in seconds//Output the result
        // long sec = diff % nd % nh % nm / ns;
        return day + "day" + hour + "hour" + min + "minute";
    }

    /**
     * Add LocalDateTime ==> Date
     */
    public static Date toDate(LocalDateTime temporalAccessor) {<!-- -->
        ZonedDateTime zdt = temporalAccessor.atZone(ZoneId.systemDefault());
        return Date.from(zdt.toInstant());
    }

    /**
     * Add LocalDate ==> Date
     */
    public static Date toDate(LocalDate temporalAccessor) {<!-- -->
        LocalDateTime localDateTime = LocalDateTime.of(temporalAccessor, LocalTime.of(0, 0, 0));
        ZonedDateTime zdt = localDateTime. atZone(ZoneId. systemDefault());
        return Date.from(zdt.toInstant());
    }

    /**
     * date to string
     *
     * @param date
     * @param pattern
     * @return
     */
    public static String format(Date date, String pattern) {<!-- -->
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern(pattern);
        return formatter.format(date.toInstant().atZone(ZoneId.systemDefault()));
    }

    /**
     * string to date
     *
     * @param date
     * @param pattern
     * @return
     */
    public static Date dateFormat(String date, String pattern) {<!-- -->
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern(pattern);
        LocalDate localDate = LocalDate. parse(date, formatter);
        return toDate(localDate);
    }

    /**
     * Calculation time consuming
     *
     * @param timestamp millisecond timestamp
     * @return
     */
    public static String formatDHMS(long timestamp) {<!-- -->
        String dayStr = MessageUtils. message("common. date. day");
        String hourStr = MessageUtils. message("common. date. hour");
        String minuteStr = MessageUtils. message("common. date. minute");
        String secondStr = MessageUtils. message("common. date. second");
        if (timestamp == 0) return "0" + secondStr;
        long days = timestamp / (1000 * 60 * 60 * 24);
        long hours = (timestamp % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60);
        long minutes = (timestamp % (1000 * 60 * 60)) / (1000 * 60);
        long seconds = (timestamp % (1000 * 60)) / 1000;
        if (timestamp % (1000 * 60 * 60 * 24) == 0) {<!-- -->
            return days + dayStr;
        } else if (timestamp % (1000 * 60 * 60) == 0) {<!-- -->
            return days + dayStr + hours + hourStr;
        } else if (timestamp % (1000 * 60) == 0) {<!-- -->
            return days + dayStr + hours + hourStr + minutes + minuteStr;
        }
        if (days > 0) {<!-- -->
            return days + dayStr + hours + hourStr + minutes + minuteStr + seconds + secondStr;
        } else if (hours > 0) {<!-- -->
            return hours + hourStr + minutes + minuteStr + seconds + secondStr;
        } else if (minutes > 0) {<!-- -->
            return minutes + minuteStr + seconds + secondStr;
        } else {<!-- -->
            return seconds + secondStr;
        }
    }

}