From: http://www.yuanma.org/data/2006/0914/article_1538.htm
js的实现:http://www.winu.cn/redirect.php?tid=71667&goto=lastpost
java 代码
- //测试类
- public class Test ...{
- public static void main(String[] args) ...{
- //调用农历日期转换阳历日期方法
- System.out.println(Calendar.sCalendarLundarToSolar(2006,1,1));
- }
- }
- //自定义日历类
- class Calendar ...{
- // Array lIntLunarDay is stored in the monthly day information in every year from 1901 to 2100 of the lunar calendar,
- // The lunar calendar can only be 29 or 30 days every month, express with 12(or 13) pieces of binary bit in one year,
- // it is 30 days for 1 form in the corresponding location , otherwise it is 29 days
- private static final int[] iLunarMonthDaysTable = ...{
- 0x4ae0, 0xa570, 0x5268, 0xd260, 0xd950, 0x6aa8, 0x56a0, 0x9ad0, 0x4ae8, 0x4ae0, // 1910
- 0xa4d8, 0xa4d0, 0xd250, 0xd548, 0xb550, 0x56a0, 0x96d0, 0x95b0, 0x49b8, 0x49b0, // 1920
- 0xa4b0, 0xb258, 0x6a50, 0x6d40, 0xada8, 0x2b60, 0x9570, 0x4978, 0x4970, 0x64b0, // 1930
- 0xd4a0, 0xea50, 0x6d48, 0x5ad0, 0x2b60, 0x9370, 0x92e0, 0xc968, 0xc950, 0xd4a0, // 1940
- 0xda50, 0xb550, 0x56a0, 0xaad8, 0x25d0, 0x92d0, 0xc958, 0xa950, 0xb4a8, 0x6ca0, // 1950
- 0xb550, 0x55a8, 0x4da0, 0xa5b0, 0x52b8, 0x52b0, 0xa950, 0xe950, 0x6aa0, 0xad50, // 1960
- 0xab50, 0x4b60, 0xa570, 0xa570, 0x5260, 0xe930, 0xd950, 0x5aa8, 0x56a0, 0x96d0, // 1970
- 0x4ae8, 0x4ad0, 0xa4d0, 0xd268, 0xd250, 0xd528, 0xb540, 0xb6a0, 0x96d0, 0x95b0, // 1980
- 0x49b0, 0xa4b8, 0xa4b0, 0xb258, 0x6a50, 0x6d40, 0xada0, 0xab60, 0x9370, 0x4978, // 1990
- 0x4970, 0x64b0, 0x6a50, 0xea50, 0x6b28, 0x5ac0, 0xab60, 0x9368, 0x92e0, 0xc960, // 2000
- 0xd4a8, 0xd4a0, 0xda50, 0x5aa8, 0x56a0, 0xaad8, 0x25d0, 0x92d0, 0xc958, 0xa950, // 2010
- 0xb4a0, 0xb550, 0xb550, 0x55a8, 0x4ba0, 0xa5b0, 0x52b8, 0x52b0, 0xa930, 0x74a8, // 2020
- 0x6aa0, 0xad50, 0x4da8, 0x4b60, 0x9570, 0xa4e0, 0xd260, 0xe930, 0xd530, 0x5aa0, // 2030
- 0x6b50, 0x96d0, 0x4ae8, 0x4ad0, 0xa4d0, 0xd258, 0xd250, 0xd520, 0xdaa0, 0xb5a0, // 2040
- 0x56d0, 0x4ad8, 0x49b0, 0xa4b8, 0xa4b0, 0xaa50, 0xb528, 0x6d20, 0xada0, 0x55b0 // 2050
- };
- // Array iLunarLeapMonthTable preserves the lunar calendar leap month from 1901 to 2050,
- // if it is 0 express not to have , every byte was stored for two years
- private static final char[] iLunarLeapMonthTable = ...{
- 0x00, 0x50, 0x04, 0x00, 0x20, // 1910
- 0x60, 0x05, 0x00, 0x20, 0x70, // 1920
- 0x05, 0x00, 0x40, 0x02, 0x06, // 1930
- 0x00, 0x50, 0x03, 0x07, 0x00, // 1940
- 0x60, 0x04, 0x00, 0x20, 0x70, // 1950
- 0x05, 0x00, 0x30, 0x80, 0x06, // 1960
- 0x00, 0x40, 0x03, 0x07, 0x00, // 1970
- 0x50, 0x04, 0x08, 0x00, 0x60, // 1980
- 0x04, 0x0a, 0x00, 0x60, 0x05, // 1990
- 0x00, 0x30, 0x80, 0x05, 0x00, // 2000
- 0x40, 0x02, 0x07, 0x00, 0x50, // 2010
- 0x04, 0x09, 0x00, 0x60, 0x04, // 2020
- 0x00, 0x20, 0x60, 0x05, 0x00, // 2030
- 0x30, 0xb0, 0x06, 0x00, 0x50, // 2040
- 0x02, 0x07, 0x00, 0x50, 0x03 // 2050
- };
- // Array iSolarLunarTable stored the offset days
- // in New Year of solar calendar and lunar calendar from 1901 to 2050;
- private static final char[] iSolarLunarOffsetTable = ...{
- 49, 38, 28, 46, 34, 24, 43, 32, 21, 40, // 1910
- 29, 48, 36, 25, 44, 34, 22, 41, 31, 50, // 1920
- 38, 27, 46, 35, 23, 43, 32, 22, 40, 29, // 1930
- 47, 36, 25, 44, 34, 23, 41, 30, 49, 38, // 1940
- 26, 45, 35, 24, 43, 32, 21, 40, 28, 47, // 1950
- 36, 26, 44, 33, 23, 42, 30, 48, 38, 27, // 1960
- 45, 35, 24, 43, 32, 20, 39, 29, 47, 36, // 1970
- 26, 45, 33, 22, 41, 30, 48, 37, 27, 46, // 1980
- 35, 24, 43, 32, 50, 39, 28, 47, 36, 26, // 1990
- 45, 34, 22, 40, 30, 49, 37, 27, 46, 35, // 2000
- 23, 42, 31, 21, 39, 28, 48, 37, 25, 44, // 2010
- 33, 23, 41, 31, 50, 39, 28, 47, 35, 24, // 2020
- 42, 30, 21, 40, 28, 47, 36, 25, 43, 33, // 2030
- 22, 41, 30, 49, 37, 26, 44, 33, 23, 42, // 2040
- 31, 21, 40, 29, 47, 36, 25, 44, 32, 22, // 2050
- };
- static boolean bIsSolarLeapYear(int iYear)...{
- return ((iYear % 4 == 0) && (iYear % 100 != 0) || iYear % 400 == 0);
- }
- // The days in the month of solar calendar
- static int iGetSYearMonthDays(int iYear, int iMonth)...{
- if((iMonth == 1) || (iMonth == 3) || (iMonth == 5)||
- (iMonth == 7) || (iMonth == 8) || (iMonth == 10) || (iMonth == 12))
- return 31;
- else if((iMonth == 4) || (iMonth == 6) || (iMonth == 9) || (iMonth == 11))
- return 30;
- else if(iMonth == 2)...{
- if(bIsSolarLeapYear(iYear)) return 29;
- else return 28;
- }
- else return 0;
- }
- // The offset days from New Year and the day when point out in solar calendar
- static int iGetSNewYearOffsetDays(int iYear, int iMonth, int iDay)...{
- int iOffsetDays = 0;
- for(int i = 1; i < iMonth; i++)...{
- iOffsetDays += iGetSYearMonthDays(iYear, i);
- }
- iOffsetDays += iDay -1;
- return iOffsetDays;
- }
- static int iGetLLeapMonth(int iYear)...{
- char iMonth = iLunarLeapMonthTable[(iYear - 1901) / 2];
- if(iYear % 2 == 0)
- return (iMonth & 0x0f);
- else
- return (iMonth & 0xf0) >> 4;
- }
- static int iGetLMonthDays(int iYear, int iMonth)...{
- int iLeapMonth = iGetLLeapMonth(iYear);
- if((iMonth > 12) && (iMonth - 12 != iLeapMonth) || (iMonth < 0))...{
- System.out.println("Wrong month, ^_^ , i think you are want a -1, go to death!");
- return -1;
- }
- if(iMonth - 12 == iLeapMonth)...{
- if((iLunarMonthDaysTable[iYear - 1901] & (0x8000 >> iLeapMonth)) == 0)
- return 29;
- else
- return 30;
- }
- if((iLeapMonth > 0) && (iMonth > iLeapMonth)) iMonth++;
- if((iLunarMonthDaysTable[iYear - 1901] & (0x8000 >> (iMonth - 1))) == 0)
- return 29;
- else
- return 30;
- }
- // Days in this year of lunar calendar
- static int iGetLYearDays(int iYear)...{
- int iYearDays = 0;
- int iLeapMonth = iGetLLeapMonth(iYear);
- for(int i = 1; i < 13; i++)
- iYearDays += iGetLMonthDays(iYear, i);
- if(iLeapMonth > 0)
- iYearDays += iGetLMonthDays(iYear, iLeapMonth + 12);
- return iYearDays;
- }
- static int iGetLNewYearOffsetDays(int iYear, int iMonth, int iDay)...{
- int iOffsetDays = 0;
- int iLeapMonth = iGetLLeapMonth(iYear);
- if((iLeapMonth > 0) && (iLeapMonth == iMonth - 12))...{
- iMonth = iLeapMonth;
- iOffsetDays += iGetLMonthDays(iYear, iMonth);
- }
- for(int i = 1; i < iMonth; i++)...{
- iOffsetDays += iGetLMonthDays(iYear, i);
- if(i == iLeapMonth)
- iOffsetDays += iGetLMonthDays(iYear, iLeapMonth+12);
- }
- iOffsetDays += iDay - 1;
- return iOffsetDays;
- }
- // The solar calendar is turned into the lunar calendar
- static String sCalendarSolarToLundar(int iYear, int iMonth, int iDay)...{
- int iLDay, iLMonth, iLYear;
- int iOffsetDays = iGetSNewYearOffsetDays(iYear, iMonth, iDay);
- int iLeapMonth = iGetLLeapMonth(iYear);
- if(iOffsetDays < iSolarLunarOffsetTable[iYear - 1901] )...{
- iLYear = iYear - 1;
- iOffsetDays = iSolarLunarOffsetTable[iYear - 1901] - iOffsetDays;
- iLDay = iOffsetDays;
- for(iLMonth = 12; iOffsetDays > iGetLMonthDays(iLYear, iLMonth); iLMonth--)...{
- iLDay = iOffsetDays;
- iOffsetDays -= iGetLMonthDays(iLYear, iLMonth);
- }
- if(0 == iLDay)
- iLDay = 1;
- else
- iLDay = iGetLMonthDays(iLYear, iLMonth) - iOffsetDays + 1;
- }
- else...{
- iLYear = iYear;
- iOffsetDays -= iSolarLunarOffsetTable[iYear - 1901];
- iLDay = iOffsetDays + 1;
- for(iLMonth = 1; iOffsetDays >= 0; iLMonth++)...{
- iLDay = iOffsetDays + 1;
- iOffsetDays -= iGetLMonthDays(iLYear, iLMonth);
- if((iLeapMonth == iLMonth) && (iOffsetDays > 0))...{
- iLDay = iOffsetDays;
- iOffsetDays -= iGetLMonthDays(iLYear, iLMonth + 12);
- if(iOffsetDays <= 0)...{
- iLMonth += 12 + 1;
- break;
- }
- }
- }
- iLMonth--;
- }
- return "" + iLYear + (iLMonth > 9 ? "" + iLMonth : "0" + iLMonth)
- + (iLDay > 9 ? "" + iLDay : "0" + iLDay);
- }
- // The lunar calendar is turned into the Solar calendar
- static String sCalendarLundarToSolar(int iYear, int iMonth, int iDay)...{
- int iSYear, iSMonth, iSDay;
- int iOffsetDays = iGetLNewYearOffsetDays(iYear, iMonth, iDay) + iSolarLunarOffsetTable[iYear - 1901];
- int iYearDays = bIsSolarLeapYear(iYear) ? 366 : 365;
- if(iOffsetDays >= iYearDays)...{
- iSYear = iYear + 1;
- iOffsetDays -= iYearDays;
- }
- else ...{
- iSYear = iYear;
- }
- iSDay = iOffsetDays + 1;
- for(iSMonth = 1; iOffsetDays >= 0; iSMonth++)...{
- iSDay = iOffsetDays + 1;
- iOffsetDays -= iGetSYearMonthDays(iSYear, iSMonth);
- }
- iSMonth--;
- return "" + iSYear + (iSMonth > 9 ? iSMonth + "" : "0" + iSMonth)
- + (iSDay > 9 ? iSDay + "" : "0" + iSDay);
- }
- }
- //自定义星期类
- class Week...{
- int iWeek;
- private String sWeek[] = ...{
- "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"
- };
- public Week()...{
- iWeek = 0;
- }
- public Week(int w)...{
- if((w > 6) || (w < 0))...{
- System.out.println("Week out of range, I think you want Sunday");
- this.iWeek = 0;
- } else
- this.iWeek = w;
- }
- public String toString()...{
- return sWeek[iWeek];
- }
- }
- //自定义日期类
- class MyDate ...{
- public int iYear;
- public int iMonth;
- public int iDay;
- private static int checkYear(int iYear)...{
- if((iYear > 1901) && (iYear < 2050))
- return iYear;
- else...{
- System.out.println("The Year out of range, I think you want 1981");
- return 1981;
- }
- }
- public MyDate(int iYear, int iMonth, int iDay)...{
- this.iYear = checkYear(iYear);
- this.iMonth = iMonth;
- this.iDay = iDay;
- }
- public MyDate(int iYear, int iMonth)...{
- this.iYear = checkYear(iYear);
- this.iMonth = iMonth;
- this.iDay = 1;
- }
- public MyDate(int iYear)...{
- this.iYear = checkYear(iYear);
- this.iMonth = 1;
- this.iDay = 1;
- }
- public MyDate()...{
- this.iYear = 1981;
- this.iMonth = 1;
- this.iDay = 1;
- }
- public String toString()...{
- return ""+ this.iYear +
- (this
本文介绍了一种用于农历和阳历相互转换的算法实现,包括关键的数据结构和方法,如闰月判断、月份天数获取等。通过具体示例展示了如何在Java中实现这一功能。
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