java 日历计算农历和节假日的常用类(包括除夕的算法)

2024-06-28 18:53| 来源: 网络整理| 查看: 265

最近在写日历，发现很多开源的常用的日历根本不能显示出除夕这个节日，所以在github上找到一个计算出大部分农历之后修改了一下，这里科普下，除夕有可能是29，也有可能是30，中国农历一个月只有29天或者30天。

import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Locale; /** * Created by wxj on 2018/1/31. */ public class LunarCalendar { private int year; // 农历的年份 private int month; private int day; private String lunarMonth; // 农历的月份 public int leapMonth = 0; // 闰的是哪个月 final static String chineseNumber[] = { "一", "二", "三", "四", "五", "六", "七", "八", "九", "十", "十一", "十二" }; static SimpleDateFormat chineseDateFormat = new SimpleDateFormat("yyyy年MM月dd日", Locale.CHINA); final static long[] lunarInfo = new long[] { // 0x04bd8, 0x04ae0, 0x0a570, 0x054d5, 0x0d260, 0x0d950, 0x16554, 0x056a0, 0x09ad0, // 0x055d2, 0x04ae0, 0x0a5b6, 0x0a4d0, 0x0d250, 0x1d255, 0x0b540, 0x0d6a0, 0x0ada2, // 0x095b0, 0x14977, 0x04970, 0x0a4b0, 0x0b4b5, 0x06a50, 0x06d40, 0x1ab54, 0x02b60, // 0x09570, 0x052f2, 0x04970, 0x06566, 0x0d4a0, 0x0ea50, 0x06e95, 0x05ad0, 0x02b60, // 0x186e3, 0x092e0, 0x1c8d7, 0x0c950, 0x0d4a0, 0x1d8a6, 0x0b550, 0x056a0, 0x1a5b4, // 0x025d0, 0x092d0, 0x0d2b2, 0x0a950, 0x0b557, 0x06ca0, 0x0b550, 0x15355, 0x04da0, // 0x0a5d0, 0x14573, 0x052d0, 0x0a9a8, 0x0e950, 0x06aa0, 0x0aea6, 0x0ab50, 0x04b60, // 0x0aae4, 0x0a570, 0x05260, 0x0f263, 0x0d950, 0x05b57, 0x056a0, 0x096d0, 0x04dd5, // 0x04ad0, 0x0a4d0, 0x0d4d4, 0x0d250, 0x0d558, 0x0b540, 0x0b5a0, 0x195a6, 0x095b0, // 0x049b0, 0x0a974, 0x0a4b0, 0x0b27a, 0x06a50, 0x06d40, 0x0af46, 0x0ab60, 0x09570, // 0x04af5, 0x04970, 0x064b0, 0x074a3, 0x0ea50, 0x06b58, 0x055c0, 0x0ab60, 0x096d5, // 0x092e0, 0x0c960, 0x0d954, 0x0d4a0, 0x0da50, 0x07552, 0x056a0, 0x0abb7, 0x025d0, // 0x092d0, 0x0cab5, 0x0a950, 0x0b4a0, 0x0baa4, 0x0ad50, 0x055d9, 0x04ba0, 0x0a5b0, // 0x15176, 0x052b0, 0x0a930, 0x07954, 0x06aa0, 0x0ad50, 0x05b52, 0x04b60, 0x0a6e6, // 0x0a4e0, 0x0d260, 0x0ea65, 0x0d530, 0x05aa0, 0x076a3, 0x096d0, 0x04bd7, 0x04ad0, // 0x0a4d0, 0x1d0b6, 0x0d250, 0x0d520, 0x0dd45, 0x0b5a0, 0x056d0, 0x055b2, 0x049b0, // 0x0a577, 0x0a4b0, 0x0aa50, 0x1b255, 0x06d20, 0x0ada0 }; // 农历部分假日 final static String[] lunarHoliday = new String[] { "0101 春节", "0115 元宵", "0505 端午", "0707 情人", "0715 中元", "0815 中秋", "0909 重阳", "1208 腊八", "1224 小年", "0100 除夕" }; // 公历部分节假日 final static String[] solarHoliday = new String[] { // "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", // "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",// "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" }; // ====== 传回农历 y年的总天数 final private static int yearDays(int y) { int i, sum = 348; for (i = 0x8000; i > 0x8; i >>= 1) { if ((lunarInfo[y - 1900] & i) != 0) sum += 1; } return (sum + leapDays(y)); } // ====== 传回农历 y年闰月的天数 final private static int leapDays(int y) { if (leapMonth(y) != 0) { if ((lunarInfo[y - 1900] & 0x10000) != 0) return 30; else return 29; } else return 0; } // ====== 传回农历 y年闰哪个月 1-12 , 没闰传回 0 final private static int leapMonth(int y) { int result = (int) (lunarInfo[y - 1900] & 0xf); return result; } // ====== 传回农历 y年m月的总天数 final private static int monthDays(int y, int m) { if ((lunarInfo[y - 1900] & (0x10000 >> m)) == 0) return 29; else return 30; } // ====== 传回农历 y年的生肖 final public String animalsYear(int year) { final String[] Animals = new String[] { "鼠", "牛", "虎", "兔", "龙", "蛇", "马", "羊", "猴", "鸡", "狗", "猪" }; return Animals[(year - 4) % 12]; } // ====== 传入月日的offset 传回干支, 0=甲子 final private static String cyclicalm(int num) { final String[] Gan = new String[] { "甲", "乙", "丙", "丁", "戊", "己", "庚", "辛", "壬", "癸" }; final String[] Zhi = new String[] { "子", "丑", "寅", "卯", "辰", "巳", "午", "未", "申", "酉", "戌", "亥" }; return (Gan[num % 10] + Zhi[num % 12]); } // ====== 传入 offset 传回干支, 0=甲子 final public String cyclical(int year) { int num = year - 1900 + 36; return (cyclicalm(num)); } public static String getChinaDayString(int day) { String chineseTen[] = { "初", "十", "廿", "卅" }; int n = day % 10 == 0 ? 9 : day % 10 - 1; if (day > 30) return ""; if (day == 10) return "初十"; else return chineseTen[day / 10] + chineseNumber[n]; } /** * 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 * dayCyl5:与1900年1月31日相差的天数,再加40 ? * * 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 * * @return */ public String getLunarDate(int year_log, int month_log, int day_log, boolean isday) { // @SuppressWarnings("unused") int yearCyl, monCyl, dayCyl; // int leapMonth = 0; String nowadays; Date baseDate = null; Date nowaday = null; try { baseDate = chineseDateFormat.parse("1900年1月31日"); } catch (ParseException e) { e.printStackTrace(); // To change body of catch statement use // Options | File Templates. } nowadays = year_log + "年" + month_log + "月" + day_log + "日"; try { nowaday = chineseDateFormat.parse(nowadays); } catch (ParseException e) { e.printStackTrace(); // To change body of catch statement use // Options | File Templates. } // 求出和1900年1月31日相差的天数 int offset = (int) ((nowaday.getTime() - baseDate.getTime()) / 86400000L); dayCyl = offset + 40; monCyl = 14; // 用offset减去每农历年的天数 // 计算当天是农历第几天 // i最终结果是农历的年份 // offset是当年的第几天 int iYear, daysOfYear = 0; for (iYear = 1900; iYear < 10000 && offset > 0; iYear++) { daysOfYear = yearDays(iYear); offset -= daysOfYear; monCyl += 12; } if (offset < 0) { offset += daysOfYear; iYear--; monCyl -= 12; } // 农历年份 year = iYear; setYear(year); // 设置公历对应的农历年份 yearCyl = iYear - 1864; leapMonth = leapMonth(iYear); // 闰哪个月,1-12 boolean leap = false; // 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 int iMonth, daysOfMonth = 0; for (iMonth = 1; iMonth < 13 && offset > 0; iMonth++) { // 闰月 if (leapMonth > 0 && iMonth == (leapMonth + 1) && !leap) { --iMonth; leap = true; daysOfMonth = leapDays(year); } else daysOfMonth = monthDays(year, iMonth); offset -= daysOfMonth; // 解除闰月 if (leap && iMonth == (leapMonth + 1)) leap = false; if (!leap) monCyl++; } // offset为0时，并且刚才计算的月份是闰月，要校正 if (offset == 0 && leapMonth > 0 && iMonth == leapMonth + 1) { if (leap) { leap = false; } else { leap = true; --iMonth; --monCyl; } } // offset小于0时，也要校正 if (offset < 0) { offset += daysOfMonth; --iMonth; --monCyl; } month = iMonth; setLunarMonth(chineseNumber[month - 1] + "月"); // 设置对应的阴历月份 day = offset + 1; if (!isday) { // 如果日期为节假日则阴历日期则返回节假日 // setLeapMonth(leapMonth); for (int i = 0; i < solarHoliday.length; i++) { // 返回公历节假日名称 String sd = solarHoliday[i].split(" ")[0]; // 节假日的日期 String sdv = solarHoliday[i].split(" ")[1]; // 节假日的名称 String smonth_v = month_log + ""; String sday_v = day_log + ""; String smd = ""; if (month_log < 10) { smonth_v = "0" + month_log; } if (day_log < 10) { sday_v = "0" + day_log; } smd = smonth_v + sday_v; if (sd.trim().equals(smd.trim())) { return sdv; } } for (int i = 0; i < lunarHoliday.length; i++) { // 返回农历节假日名称 String ld = lunarHoliday[i].split(" ")[0]; // 节假日的日期 String ldv = lunarHoliday[i].split(" ")[1]; // 节假日的名称 String lmonth_v = month + ""; String lday_v = day + ""; String lmd = ""; if (month < 10) { lmonth_v = "0" + month; } if (day < 10) { lday_v = "0" + day; } lmd = lmonth_v + lday_v; if ("12".equals(lmonth_v)) { // 除夕夜需要特殊处理 if ((daysOfMonth == 29 && day == 29) || (daysOfMonth == 30 && day == 30)) { return ldv; } } if (ld.trim().equals(lmd.trim())) { return ldv; } } } if (day == 1) return chineseNumber[month - 1] + "月"; else return getChinaDayString(day); } public String toString() { if (chineseNumber[month - 1] == "一" && getChinaDayString(day) == "初一") return "农历" + year + "年"; else if (getChinaDayString(day) == "初一") return chineseNumber[month - 1] + "月"; else return getChinaDayString(day); // return year + "年" + (leap ? "闰" : "") + chineseNumber[month - 1] + // "月" + getChinaDayString(day); } /* * public static void main(String[] args) { System.out.println(new * LunarCalendar().getLunarDate(2012, 1, 23)); } */ public int getLeapMonth() { return leapMonth; } public void setLeapMonth(int leapMonth) { this.leapMonth = leapMonth; } /** * 得到当前日期对应的阴历月份 * * @return */ public String getLunarMonth() { return lunarMonth; } public void setLunarMonth(String lunarMonth) { this.lunarMonth = lunarMonth; } /** * 得到当前年对应的农历年份 * * @return */ public int getYear() { return year; } public void setYear(int year) { this.year = year; } }

这个类写的很通俗，如果你要计算某一天是农历几月初几，直接使用方法getLunarDate即可。最后添加一个链接，里面是很多个android开源的日历效果图，满足产品经理的要求。

点击打开链接

【本文地址】

公司简介

联系我们