XTime使用笔记

 /**
 * Return the current time in milliseconds.
 *
 * @return the current time in milliseconds
 */
public static long getNowMills() {
    return System.currentTimeMillis();
}

/**
 * Return the current formatted time string.
 * <p>The pattern is {@code yyyy-MM-dd HH:mm:ss}.</p>
 *
 * @return the current formatted time string
 */
public static String getNowString() {
    return millis2String(System.currentTimeMillis(), getDefaultFormat());
}

private static SimpleDateFormat getDefaultFormat() {
    return getSafeDateFormat("yyyy-MM-dd HH:mm:ss");
}

/**
 * Return the current date.
 *
 * @return the current date
 */
public static Date getNowDate() {
    return new Date();
}

/**
 * Return whether it is leap year.
 *
 * @param date The date.
 * @return {@code true}: yes<br>{@code false}: no
 */
public static boolean isLeapYear(final Date date) {
    Calendar cal = Calendar.getInstance();
    cal.setTime(date);
    int year = cal.get(Calendar.YEAR);
    return isLeapYear(year);
}
/**
 * Return whether it is leap year.
 *
 * @param year The year.
 * @return {@code true}: yes<br>{@code false}: no
 */
public static boolean isLeapYear(final int year) {
    return year % 4 == 0 && year % 100 != 0 || year % 400 == 0;
}

 /**
 * Return the day of week in Chinese.
 *
 * @param date The date.
 * @return the day of week in Chinese
 */
public static String getChineseWeek(final Date date) {
    return new SimpleDateFormat("E", Locale.CHINA).format(date);
}

 /**
 * Return the day of week in US.
 *
 * @param date The date.
 * @return the day of week in US
 */
public static String getUSWeek(final Date date) {
    return new SimpleDateFormat("EEEE", Locale.US).format(date);
}

 /**
 * Return whether it is am.
 *
 * @param millis The milliseconds.
 * @return {@code true}: yes<br>{@code false}: no
 */
public static boolean isAm(final long millis) {
    return getValueByCalendarField(millis, GregorianCalendar.AM_PM) == 0;
}

public static int getValueByCalendarField(final long millis, final int field) {
    Calendar cal = Calendar.getInstance();
    cal.setTimeInMillis(millis);
    return cal.get(field);
}

 /**
 * Return the Chinese zodiac.
 *
 * @param date The date.
 * @return the Chinese zodiac
 */
public static String getChineseZodiac(final Date date) {
    Calendar cal = Calendar.getInstance();
    cal.setTime(date);
    return CHINESE_ZODIAC[cal.get(Calendar.YEAR) % 12];
}

private static final String[] CHINESE_ZODIAC =
        {"猴", "鸡", "狗", "猪", "鼠", "牛", "虎", "兔", "龙", "蛇", "马", "羊"};

  /**
  * Return the zodiac.
  *
  * @param date The date.
  * @return the zodiac
  */
 public static String getZodiac(final Date date) {
     Calendar cal = Calendar.getInstance();
     cal.setTime(date);
     int month = cal.get(Calendar.MONTH) + 1;
     int day = cal.get(Calendar.DAY_OF_MONTH);
     return getZodiac(month, day);
 }

/**
  * Return the zodiac.
  *
  * @param month The month.
  * @param day   The day.
  * @return the zodiac
  */
 public static String getZodiac(final int month, final int day) {
     return ZODIAC[day >= ZODIAC_FLAGS[month - 1]
             ? month - 1
             : (month + 10) % 12];
 }

 private static final int[]    ZODIAC_FLAGS = {20, 19, 21, 21, 21, 22, 23, 23, 23, 24, 23, 22};
 private static final String[] ZODIAC       = {
         "水瓶座", "双鱼座", "白羊座", "金牛座", "双子座", "巨蟹座",
         "狮子座", "处女座", "天秤座", "天蝎座", "射手座", "摩羯座"
 };