XTime使用笔记

一.代码

XTester-xtime
xlib-xtime

二.demo

三.方法

• 获取当前毫秒时间戳

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

• 获取当前时间字符串

  /**
   * 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");
  }

• 获取当前 Date

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

• 今年是否闰年

  /**
   * 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;
  }

• 获取中式星期

   /**
   * 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);
  }

• 获取美式式星期

   /**
   * 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);
  }

• 判断现在是否上午

   /**
   * 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);
  }

• 获取今年生肖

   /**
   * 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"};

• 获取本月星座

    /**
    * 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"
   };