Java 计算节气的类

 /**
  * @(#)Lunar.java 2008-4-5 2:06:22
  */
 package luozhuangChineseEra;

 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Calendar;
 import java.util.Date;
 import java.util.GregorianCalendar;
 import java.util.List;
 import java.util.TimeZone;
 import java.util.Vector;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;

 /**
  * 提供一些农历相关信息
  *
  * @author 林志斌,修改by 大师♂罗莊
  */
 public class Lunar {

     public static void main(String[] args) {
         Lunar l = new Lunar(System.currentTimeMillis());
         System.out.println("节气:" + l.getTermString());
         System.out.println("干支历:" + l.getCyclicalDateString());
         System.out.println("星期" + l.getDayOfWeek());
         System.out.println("农历" + l.getLunarDateString());
         Calendar t = Calendar.getInstance();
         t.set(1985, 10, 17);
         System.out.print(t.getTime().getMonth() + "月");
         System.out.println(getbeforesolarTerm(t.get(Calendar.YEAR), t.getTime()));
         System.out.println(getaftersolarTerm(t.get(Calendar.YEAR), t.getTime()));


         Date[] jieqi = jieqilist(1940);
         for (int i = 0; i < solarTerm.length; i++) {
             System.out.print(solarTerm[i]);
             System.out.print(jieqi[i].getMonth() + "月");
             System.out.println(jieqi[i].getDate());
         }
     }

     /**
      * 获得某天前个节气日期差
      *
      * @return 日期数
      */
     public static long getbeforesolarTerm(int year, Date date) {
        List jieqi =Alljieqi(year);
         int[] jieqibeforeafter = getnearsolarTerm(year, date);
         return MyDate.DateDays(date, jieqi.get(jieqibeforeafter[0]));


     }

     /**
      * 获得某天后个节气日期差
      *
      * @return 日期数
      */
     public static long getaftersolarTerm(int year, Date date) {
         List jieqi =Alljieqi(year);
         int[] jieqibeforeafter = getnearsolarTerm(year, date);
         return MyDate.DateDays(date, jieqi.get(jieqibeforeafter[1]));

     }


     public static List Alljieqi(int year)
     {

       List jieqi = new  ArrayList();
         Date[] temp ;
         temp = jieqilist(year - 1);
         jieqi.addAll(Arrays.asList(temp));
         temp = jieqilist(year);
         jieqi.addAll(Arrays.asList(temp));
          temp = jieqilist(year+1);
         jieqi.addAll(Arrays.asList(temp));
         return jieqi;
     }

     /**
      * 获得某天前后两个节气序号
      *
      * @return
      */
     public static int[] getnearsolarTerm(int year, Date date) {
       List jieqi =Alljieqi(year);

         int[] returnValue = new int[2];
         for (int i = 0; i < jieqi.size(); i++) {
             if (date.getTime() > jieqi.get(i).getTime()) {
                 continue;
             }
             if (i % 2 == 0) {//只管气
                 returnValue[0] = i - 2;
                 returnValue[1] = i;
             } else {
                 returnValue[0] = i - 1;
                 returnValue[1] = i + 1;

             }
             break;
         }

         return returnValue;
     }

     /**
      * 获得某年中所有节气Date
      *
      * @return
      */
     public static Date[] jieqilist(int year) {
         Date[] returnvalue = new Date[solarTerm.length];

         for (int i = 0; i < solarTerm.length; i++) {

             Date t = getSolarTermCalendar(year, i);
             returnvalue[i] = t;

         }
         return returnvalue;
     }
     private final static int[] lunarInfo = {
         0x4bd8, 0x4ae0, 0xa570, 0x54d5, 0xd260, 0xd950, 0x5554, 0x56af,
         0x9ad0, 0x55d2, 0x4ae0, 0xa5b6, 0xa4d0, 0xd250, 0xd295, 0xb54f,
         0xd6a0, 0xada2, 0x95b0, 0x4977, 0x497f, 0xa4b0, 0xb4b5, 0x6a50,
         0x6d40, 0xab54, 0x2b6f, 0x9570, 0x52f2, 0x4970, 0x6566, 0xd4a0,
         0xea50, 0x6a95, 0x5adf, 0x2b60, 0x86e3, 0x92ef, 0xc8d7, 0xc95f,
         0xd4a0, 0xd8a6, 0xb55f, 0x56a0, 0xa5b4, 0x25df, 0x92d0, 0xd2b2,
         0xa950, 0xb557, 0x6ca0, 0xb550, 0x5355, 0x4daf, 0xa5b0, 0x4573,
         0x52bf, 0xa9a8, 0xe950, 0x6aa0, 0xaea6, 0xab50, 0x4b60, 0xaae4,
         0xa570, 0x5260, 0xf263, 0xd950, 0x5b57, 0x56a0, 0x96d0, 0x4dd5,
         0x4ad0, 0xa4d0, 0xd4d4, 0xd250, 0xd558, 0xb540, 0xb6a0, 0x95a6,
         0x95bf, 0x49b0, 0xa974, 0xa4b0, 0xb27a, 0x6a50, 0x6d40, 0xaf46,
         0xab60, 0x9570, 0x4af5, 0x4970, 0x64b0, 0x74a3, 0xea50, 0x6b58,
         0x5ac0, 0xab60, 0x96d5, 0x92e0, 0xc960, 0xd954, 0xd4a0, 0xda50,
         0x7552, 0x56a0, 0xabb7, 0x25d0, 0x92d0, 0xcab5, 0xa950, 0xb4a0,
         0xbaa4, 0xad50, 0x55d9, 0x4ba0, 0xa5b0, 0x5176, 0x52bf, 0xa930,
         0x7954, 0x6aa0, 0xad50, 0x5b52, 0x4b60, 0xa6e6, 0xa4e0, 0xd260,
         0xea65, 0xd530, 0x5aa0, 0x76a3, 0x96d0, 0x4afb, 0x4ad0, 0xa4d0,
         0xd0b6, 0xd25f, 0xd520, 0xdd45, 0xb5a0, 0x56d0, 0x55b2, 0x49b0,
         0xa577, 0xa4b0, 0xaa50, 0xb255, 0x6d2f, 0xada0, 0x4b63, 0x937f,
         0x49f8, 0x4970, 0x64b0, 0x68a6, 0xea5f, 0x6b20, 0xa6c4, 0xaaef,
         0x92e0, 0xd2e3, 0xc960, 0xd557, 0xd4a0, 0xda50, 0x5d55, 0x56a0,
         0xa6d0, 0x55d4, 0x52d0, 0xa9b8, 0xa950, 0xb4a0, 0xb6a6, 0xad50,
         0x55a0, 0xaba4, 0xa5b0, 0x52b0, 0xb273, 0x6930, 0x7337, 0x6aa0,
         0xad50, 0x4b55, 0x4b6f, 0xa570, 0x54e4, 0xd260, 0xe968, 0xd520,
         0xdaa0, 0x6aa6, 0x56df, 0x4ae0, 0xa9d4, 0xa4d0, 0xd150, 0xf252, 0xd520
     };
     private final static int[] solarTermInfo = {
         0, 21208, 42467, 63836, 85337, 107014, 128867, 150921,
         173149, 195551, 218072, 240693, 263343, 285989, 308563, 331033,
         353350, 375494, 397447, 419210, 440795, 462224, 483532, 504758
     };
     public final static String[] Tianan = {
         "甲", "乙", "丙", "丁", "戊", "己", "庚", "辛", "壬", "癸"
     };
     public final static String[] Deqi = {
         "子", "丑", "寅", "卯", "辰", "巳", "午", "未", "申", "酉", "戌", "亥"
     };
     public final static String[] Animals = {
         "鼠", "牛", "虎", "兔", "龙", "蛇", "马", "羊", "猴", "鸡", "狗", "猪"
     };
     public final static String[] solarTerm = {
         "小寒", "大寒", "立春", "雨水", "惊蛰", "春分",
         "清明", "谷雨", "立夏", "小满", "芒种", "夏至",
         "小暑", "大暑", "立秋", "处暑", "白露", "秋分",
         "寒露", "霜降", "立冬", "小雪", "大雪", "冬至"
     };
     public final static String[] lunarString1 = {
         "零", "一", "二", "三", "四", "五", "六", "七", "八", "九"
     };
     public final static String[] lunarString2 = {
         "初", "十", "廿", "卅", "正", "腊", "冬", "闰"
     };
     /**
      * 国历节日 *表示放假日
      */
     private final static String[] sFtv = {
         "0101*元旦", "0214 情人节", "0308 妇女节", "0312 植树节",
         "0315 消费者权益日", "0401 愚人节", "0501*劳动节", "0504 青年节",
         "0509 郝维节", "0512 护士节", "0601 儿童节", "0701 建党节 香港回归纪念",
         "0801 建军节", "0808 父亲节", "0816 燕衔泥节", "0909 毛泽东逝世纪念",
         "0910 教师节", "0928 孔子诞辰", "1001*国庆节", "1006 老人节",
         "1024 联合国日", "1111 光棍节", "1112 孙中山诞辰纪念", "1220 澳门回归纪念",
         "1225 圣诞节", "1226 毛泽东诞辰纪念"
     };
     /**
      * 农历节日 *表示放假日
      */
     private final static String[] lFtv = {
         "0101*春节、弥勒佛诞", "0106 定光佛诞", "0115 元宵节",
         "0208 释迦牟尼佛出家", "0215 释迦牟尼佛涅槃", "0209 海空上师诞",
         "0219 观世音菩萨诞", "0221 普贤菩萨诞", "0316 准提菩萨诞",
         "0404 文殊菩萨诞", "0408 释迦牟尼佛诞", "0415 佛吉祥日——释迦牟尼佛诞生、成道、涅槃三期同一庆(即南传佛教国家的卫塞节)",
         "0505 端午节", "0513 伽蓝菩萨诞", "0603 护法韦驮尊天菩萨诞",
         "0619 观世音菩萨成道——此日放生、念佛，功德殊胜",
         "0707 七夕情人节", "0713 大势至菩萨诞", "0715 中元节",
         "0724 龙树菩萨诞", "0730 地藏菩萨诞", "0815 中秋节",
         "0822 燃灯佛诞", "0909 重阳节", "0919 观世音菩萨出家纪念日",
         "0930 药师琉璃光如来诞", "1005 达摩祖师诞", "1107 阿弥陀佛诞",
         "1208 释迦如来成道日，腊八节", "1224 小年",
         "1229 华严菩萨诞", "0100*除夕"
     };
     /**
      * 某月的第几个星期几
      */
     private static String[] wFtv = {
         "0520 母亲节", "0716 合作节", "0730 被奴役国家周"
     };

     private static int toInt(String str) {
         try {
             return Integer.parseInt(str);
         } catch (Exception e) {
             return -1;
         }
     }
     private final static Pattern sFreg = Pattern.compile("^(\\d{2})(\\d{2})([\\s\\*])(.+)$");
     private final static Pattern wFreg = Pattern.compile("^(\\d{2})(\\d)(\\d)([\\s\\*])(.+)$");

     private synchronized void findFestival() {
         int sM = this.getSolarMonth();
         int sD = this.getSolarDay();
         int lM = this.getLunarMonth();
         int lD = this.getLunarDay();
         int sy = this.getSolarYear();
         Matcher m;
         for (int i = 0; i < Lunar.sFtv.length; i++) {
             m = Lunar.sFreg.matcher(Lunar.sFtv[i]);
             if (m.find()) {
                 if (sM == Lunar.toInt(m.group(1)) && sD == Lunar.toInt(m.group(2))) {
                     this.isSFestival = true;
                     this.sFestivalName = m.group(4);
                     if ("*".equals(m.group(3))) {
                         this.isHoliday = true;
                     }
                     break;
                 }
             }
         }
         for (int i = 0; i < Lunar.lFtv.length; i++) {
             m = Lunar.sFreg.matcher(Lunar.lFtv[i]);
             if (m.find()) {
                 if (lM == Lunar.toInt(m.group(1)) && lD == Lunar.toInt(m.group(2))) {
                     this.isLFestival = true;
                     this.lFestivalName = m.group(4);
                     if ("*".equals(m.group(3))) {
                         this.isHoliday = true;
                     }
                     break;
                 }
             }
         }

         // 月周节日
         int w, d;
         for (int i = 0; i < Lunar.wFtv.length; i++) {
             m = Lunar.wFreg.matcher(Lunar.wFtv[i]);
             if (m.find()) {
                 if (this.getSolarMonth() == Lunar.toInt(m.group(1))) {
                     w = Lunar.toInt(m.group(2));
                     d = Lunar.toInt(m.group(3));
                     if (this.solar.get(Calendar.WEEK_OF_MONTH) == w
                             && this.solar.get(Calendar.DAY_OF_WEEK) == d) {
                         this.isSFestival = true;
                         this.sFestivalName += "|" + m.group(5);
                         if ("*".equals(m.group(4))) {
                             this.isHoliday = true;
                         }
                     }
                 }
             }
         }
         if (sy > 1874 && sy < 1909) {
             this.description = "光绪" + (((sy - 1874) == 1) ? "元" : "" + (sy - 1874));
         }
         if (sy > 1908 && sy < 1912) {
             this.description = "宣统" + (((sy - 1908) == 1) ? "元" : String.valueOf(sy - 1908));
         }
         if (sy > 1911 && sy < 1950) {
             this.description = "民国" + (((sy - 1911) == 1) ? "元" : String.valueOf(sy - 1911));
         }
         if (sy > 1949) {
             this.description = "共和国" + (((sy - 1949) == 1) ? "元" : String.valueOf(sy - 1949));
         }
         this.description += "年";
         this.sFestivalName = this.sFestivalName.replaceFirst("^\\|", "");
         this.isFinded = true;
     }
     private boolean isFinded = false;
     private boolean isSFestival = false;
     private boolean isLFestival = false;
     private String sFestivalName = "";
     private String lFestivalName = "";
     private String description = "";
     private boolean isHoliday = false;

     /**
      * 返回农历年闰月月份
      *
      * @param lunarYear 指定农历年份(数字)
      * @return 该农历年闰月的月份(数字,没闰返回0)
      */
     private static int getLunarLeapMonth(int lunarYear) {
         // 数据表中,每个农历年用16bit来表示,
         // 前12bit分别表示12个月份的大小月,最后4bit表示闰月
         // 若4bit全为1或全为0,表示没闰, 否则4bit的值为闰月月份
         int leapMonth = Lunar.lunarInfo[lunarYear - 1900] & 0xf;
         leapMonth = (leapMonth == 0xf ? 0 : leapMonth);
         return leapMonth;
     }

     /**
      * 返回农历年闰月的天数
      *
      * @param lunarYear 指定农历年份(数字)
      * @return 该农历年闰月的天数(数字)
      */
     private static int getLunarLeapDays(int lunarYear) {
         // 下一年最后4bit为1111,返回30(大月)
         // 下一年最后4bit不为1111,返回29(小月)
         // 若该年没有闰月,返回0
         return Lunar.getLunarLeapMonth(lunarYear) > 0 ? ((Lunar.lunarInfo[lunarYear - 1899] & 0xf) == 0xf ? 30
                 : 29)
                 : 0;
     }

     /**
      * 返回农历年的总天数
      *
      * @param lunarYear 指定农历年份(数字)
      * @return 该农历年的总天数(数字)
      */
     private static int getLunarYearDays(int lunarYear) {
         // 按小月计算,农历年最少有12 * 29 = 348天
         int daysInLunarYear = 348;
         // 数据表中,每个农历年用16bit来表示,
         // 前12bit分别表示12个月份的大小月,最后4bit表示闰月
         // 每个大月累加一天
         for (int i = 0x8000; i > 0x8; i >>= 1) {
             daysInLunarYear += ((Lunar.lunarInfo[lunarYear - 1900] & i) != 0) ? 1
                     : 0;
         }
         // 加上闰月天数
         daysInLunarYear += Lunar.getLunarLeapDays(lunarYear);

         return daysInLunarYear;
     }

     /**
      * 返回农历年正常月份的总天数
      *
      * @param lunarYear 指定农历年份(数字)
      * @param lunarMonth 指定农历月份(数字)
      * @return 该农历年闰月的月份(数字,没闰返回0)
      */
     private static int getLunarMonthDays(int lunarYear, int lunarMonth) {
         // 数据表中,每个农历年用16bit来表示,
         // 前12bit分别表示12个月份的大小月,最后4bit表示闰月
         int daysInLunarMonth = ((Lunar.lunarInfo[lunarYear - 1900] & (0x10000 >> lunarMonth)) != 0) ? 30
                 : 29;
         return daysInLunarMonth;
     }

     /**
      * 取 Date 对象中用全球标准时间 (UTC) 表示的日期
      *
      * @param date 指定日期
      * @return UTC 全球标准时间 (UTC) 表示的日期
      */
     public static synchronized int getUTCDay(Date date) {
         Lunar.makeUTCCalendar();
         synchronized (utcCal) {
             utcCal.clear();
             utcCal.setTimeInMillis(date.getTime());
             return utcCal.get(Calendar.DAY_OF_MONTH);
         }
     }
     private static GregorianCalendar utcCal = null;

     private static synchronized void makeUTCCalendar() {
         if (Lunar.utcCal == null) {
             Lunar.utcCal = new GregorianCalendar(TimeZone.getTimeZone("UTC"));
         }
     }

     /**
      * 返回全球标准时间 (UTC) (或 GMT) 的 1970 年 1 月 1 日到所指定日期之间所间隔的毫秒数。