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package com.rehome.zhdcoa.utils;
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import java.text.ParseException;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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import java.util.Locale;
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/**
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* 农历算法
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*/
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public class LunarCalendar {
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private int year; // 农历的年份
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private int month;
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private int day;
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private String lunarMonth; // 农历的月份
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public int leapMonth = 0; // 闰的是哪个月
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private static LunarCalendar instance = null;
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public static LunarCalendar getInstance() {
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if (instance == null) {
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instance = new LunarCalendar();
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}
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return instance;
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}
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final static String[] chineseNumber = {"一", "二", "三", "四", "五", "六", "七", "八", "九", "十", "十一", "十二"};
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static SimpleDateFormat chineseDateFormat = new SimpleDateFormat("yyyy年MM月dd日", Locale.CHINA);
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final static long[] lunarInfo = new long[]{ //
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0x04bd8, 0x04ae0, 0x0a570, 0x054d5, 0x0d260, 0x0d950, 0x16554, 0x056a0, 0x09ad0, //
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0x055d2, 0x04ae0, 0x0a5b6, 0x0a4d0, 0x0d250, 0x1d255, 0x0b540, 0x0d6a0, 0x0ada2, //
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0x095b0, 0x14977, 0x04970, 0x0a4b0, 0x0b4b5, 0x06a50, 0x06d40, 0x1ab54, 0x02b60, //
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0x09570, 0x052f2, 0x04970, 0x06566, 0x0d4a0, 0x0ea50, 0x06e95, 0x05ad0, 0x02b60, //
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0x186e3, 0x092e0, 0x1c8d7, 0x0c950, 0x0d4a0, 0x1d8a6, 0x0b550, 0x056a0, 0x1a5b4, //
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0x025d0, 0x092d0, 0x0d2b2, 0x0a950, 0x0b557, 0x06ca0, 0x0b550, 0x15355, 0x04da0, //
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0x0a5d0, 0x14573, 0x052d0, 0x0a9a8, 0x0e950, 0x06aa0, 0x0aea6, 0x0ab50, 0x04b60, //
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0x0aae4, 0x0a570, 0x05260, 0x0f263, 0x0d950, 0x05b57, 0x056a0, 0x096d0, 0x04dd5, //
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0x04ad0, 0x0a4d0, 0x0d4d4, 0x0d250, 0x0d558, 0x0b540, 0x0b5a0, 0x195a6, 0x095b0, //
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0x049b0, 0x0a974, 0x0a4b0, 0x0b27a, 0x06a50, 0x06d40, 0x0af46, 0x0ab60, 0x09570, //
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0x04af5, 0x04970, 0x064b0, 0x074a3, 0x0ea50, 0x06b58, 0x055c0, 0x0ab60, 0x096d5, //
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0x092e0, 0x0c960, 0x0d954, 0x0d4a0, 0x0da50, 0x07552, 0x056a0, 0x0abb7, 0x025d0, //
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0x092d0, 0x0cab5, 0x0a950, 0x0b4a0, 0x0baa4, 0x0ad50, 0x055d9, 0x04ba0, 0x0a5b0, //
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0x15176, 0x052b0, 0x0a930, 0x07954, 0x06aa0, 0x0ad50, 0x05b52, 0x04b60, 0x0a6e6, //
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0x0a4e0, 0x0d260, 0x0ea65, 0x0d530, 0x05aa0, 0x076a3, 0x096d0, 0x04bd7, 0x04ad0, //
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0x0a4d0, 0x1d0b6, 0x0d250, 0x0d520, 0x0dd45, 0x0b5a0, 0x056d0, 0x055b2, 0x049b0, //
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0x0a577, 0x0a4b0, 0x0aa50, 0x1b255, 0x06d20, 0x0ada0};
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// 农历部分假日
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final static String[] lunarHoliday = new String[]{"0101 春节", "0115 元宵", "0505 端午", "0707 七夕", "0715 中元", "0815 中秋", "0909 重阳", "1208 腊八", "1224 小年", "0100 除夕"};
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// 公历部分节假日
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final static String[] solarHoliday = new String[]{ //
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"0101 元旦", "0214 情人", "0308 妇女", "0312 植树", "0315 消费者权益日", "0401 愚人", "0501 劳动", "0504 青年", //
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"0512 护士", "0601 儿童", "0701 建党", "0801 建军", "0808 父亲", "0909 毛泽东逝世纪念", "0910 教师", "0928 孔子诞辰",//
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"1001 国庆", "1006 老人", "1024 联合国日", "1112 孙中山诞辰纪念", "1220 澳门回归纪念", "1225 圣诞", "1226 毛泽东诞辰纪念"};
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// ====== 传回农历 y年的总天数
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final private static int yearDays(int y) {
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int i, sum = 348;
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for (i = 0x8000; i > 0x8; i >>= 1) {
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if ((lunarInfo[y - 1900] & i) != 0)
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sum += 1;
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}
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return (sum + leapDays(y));
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}
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// ====== 传回农历 y年闰月的天数
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final private static int leapDays(int y) {
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if (leapMonth(y) != 0) {
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if ((lunarInfo[y - 1900] & 0x10000) != 0)
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return 30;
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else
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return 29;
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} else
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return 0;
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}
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// ====== 传回农历 y年闰哪个月 1-12 , 没闰传回 0
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final private static int leapMonth(int y) {
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int result = (int) (lunarInfo[y - 1900] & 0xf);
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return result;
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}
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// ====== 传回农历 y年m月的总天数
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final private static int monthDays(int y, int m) {
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if ((lunarInfo[y - 1900] & (0x10000 >> m)) == 0)
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return 29;
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else
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return 30;
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}
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// ====== 传回农历 y年的生肖
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final public String animalsYear(int year) {
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final String[] Animals = new String[]{"鼠", "牛", "虎", "兔", "龙", "蛇", "马", "羊", "猴", "鸡", "狗", "猪"};
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return Animals[(year - 4) % 12];
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}
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// ====== 传入 月日的offset 传回干支, 0=甲子
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final private static String cyclicalm(int num) {
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final String[] Gan = new String[]{"甲", "乙", "丙", "丁", "戊", "己", "庚", "辛", "壬", "癸"};
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final String[] Zhi = new String[]{"子", "丑", "寅", "卯", "辰", "巳", "午", "未", "申", "酉", "戌", "亥"};
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return (Gan[num % 10] + Zhi[num % 12]);
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}
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// ====== 传入 offset 传回干支, 0=甲子
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final public String cyclical(int year) {
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int num = year - 1900 + 36;
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return (cyclicalm(num));
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}
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public static String getChinaDayString(int day) {
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String[] chineseTen = {"初", "十", "廿", "卅"};
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int n = day % 10 == 0 ? 9 : day % 10 - 1;
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if (day > 30)
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return "";
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if (day == 10)
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return "初十";
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else
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return chineseTen[day / 10] + chineseNumber[n];
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}
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/**
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* 传出y年m月d日对应的农历. yearCyl3:农历年与1864的相差数 ? monCyl4:从1900年1月31日以来,闰月数
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* dayCyl5:与1900年1月31日相差的天数,再加40 ?
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* <p>
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* isday: 这个参数为false---日期为节假日时，阴历日期就返回节假日 ，true---不管日期是否为节假日依然返回这天对应的阴历日期
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*
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* @return
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*/
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public String getLunarDate(int year_log, int month_log, int day_log,
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boolean isday) {
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// @SuppressWarnings("unused")
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int yearCyl, monCyl, dayCyl;
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// int leapMonth = 0;
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String nowadays;
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Date baseDate = null;
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Date nowaday = null;
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try {
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baseDate = chineseDateFormat.parse("1900年1月31日");
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} catch (ParseException e) {
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e.printStackTrace(); // To change body of catch statement use
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// Options | File Templates.
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}
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nowadays = year_log + "年" + month_log + "月" + day_log + "日";
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try {
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nowaday = chineseDateFormat.parse(nowadays);
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} catch (ParseException e) {
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e.printStackTrace(); // To change body of catch statement use
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// Options | File Templates.
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}
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// 求出和1900年1月31日相差的天数
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int offset = (int) ((nowaday.getTime() - baseDate.getTime()) / 86400000L);
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dayCyl = offset + 40;
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monCyl = 14;
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// 用offset减去每农历年的天数
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// 计算当天是农历第几天
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// i最终结果是农历的年份
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// offset是当年的第几天
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int iYear, daysOfYear = 0;
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for (iYear = 1900; iYear < 10000 && offset > 0; iYear++) {
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daysOfYear = yearDays(iYear);
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offset -= daysOfYear;
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monCyl += 12;
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}
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if (offset < 0) {
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offset += daysOfYear;
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iYear--;
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monCyl -= 12;
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}
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// 农历年份
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year = iYear;
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setYear(year); // 设置公历对应的农历年份
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yearCyl = iYear - 1864;
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leapMonth = leapMonth(iYear); // 闰哪个月,1-12
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boolean leap = false;
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// 用当年的天数offset,逐个减去每月（农历）的天数，求出当天是本月的第几天
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int iMonth, daysOfMonth = 0;
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for (iMonth = 1; iMonth < 13 && offset > 0; iMonth++) {
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// 闰月
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if (leapMonth > 0 && iMonth == (leapMonth + 1) && !leap) {
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--iMonth;
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leap = true;
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daysOfMonth = leapDays(year);
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} else
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daysOfMonth = monthDays(year, iMonth);
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offset -= daysOfMonth;
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// 解除闰月
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if (leap && iMonth == (leapMonth + 1))
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leap = false;
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if (!leap)
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monCyl++;
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}
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// offset为0时，并且刚才计算的月份是闰月，要校正
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if (offset == 0 && leapMonth > 0 && iMonth == leapMonth + 1) {
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if (leap) {
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leap = false;
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} else {
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leap = true;
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--iMonth;
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--monCyl;
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}
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}
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// offset小于0时，也要校正
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if (offset < 0) {
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offset += daysOfMonth;
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--iMonth;
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--monCyl;
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}
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month = iMonth;
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setLunarMonth(chineseNumber[month - 1] + "月"); // 设置对应的阴历月份
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day = offset + 1;
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if (!isday) {
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// 如果日期为节假日则阴历日期则返回节假日
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// setLeapMonth(leapMonth);
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for (int i = 0; i < solarHoliday.length; i++) {
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// 返回公历节假日名称
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String sd = solarHoliday[i].split(" ")[0]; // 节假日的日期
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String sdv = solarHoliday[i].split(" ")[1]; // 节假日的名称
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String smonth_v = month_log + "";
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String sday_v = day_log + "";
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String smd = "";
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if (month_log < 10) {
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smonth_v = "0" + month_log;
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}
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if (day_log < 10) {
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sday_v = "0" + day_log;
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}
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smd = smonth_v + sday_v;
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if (sd.trim().equals(smd.trim())) {
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return sdv;
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}
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}
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} else {
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for (int i = 0; i < lunarHoliday.length; i++) {
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// 返回农历节假日名称
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String ld = lunarHoliday[i].split(" ")[0]; // 节假日的日期
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String ldv = lunarHoliday[i].split(" ")[1]; // 节假日的名称
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String lmonth_v = month + "";
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String lday_v = day + "";
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String lmd = "";
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if (month < 10) {
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lmonth_v = "0" + month;
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}
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if (day < 10) {
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lday_v = "0" + day;
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}
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lmd = lmonth_v + lday_v;
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if (ld.trim().equals(lmd.trim())) {
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return ldv;
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}
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}
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}
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if (day == 1) {
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return leap ? "闰" + chineseNumber[month - 1] + "月" : chineseNumber[month - 1] + "月";
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} else {
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return getChinaDayString(day);
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}
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}
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public String toString() {
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if (chineseNumber[month - 1] == "一" && getChinaDayString(day) == "初一")
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return "农历" + year + "年";
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else if (getChinaDayString(day) == "初一")
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return chineseNumber[month - 1] + "月";
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else
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return getChinaDayString(day);
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// return year + "年" + (leap ? "闰" : "") + chineseNumber[month - 1] +
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// "月" + getChinaDayString(day);
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}
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/*
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* public static void main(String[] args) { System.out.println(new
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* LunarCalendar().getLunarDate(2012, 1, 23)); }
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*/
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public int getLeapMonth() {
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return leapMonth;
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}
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public void setLeapMonth(int leapMonth) {
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this.leapMonth = leapMonth;
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}
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/**
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* 得到当前日期对应的阴历月份
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*
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* @return
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*/
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public String getLunarMonth() {
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return lunarMonth;
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}
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public void setLunarMonth(String lunarMonth) {
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this.lunarMonth = lunarMonth;
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}
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/**
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* 得到当前年对应的农历年份
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*
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* @return
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*/
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public int getYear() {
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return year;
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}
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public void setYear(int year) {
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this.year = year;
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}
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}
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