农历和阳历互换的java版

找来找去，终于找到一个可以使用的版本，特记录如下

//实现类


package com.java.calendar;
//     自定义日历类 
public class ChineseCalendar {
	
//     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, 22, 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 
    public 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 
    public 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;
    }
    public static int iGetLLeapMonth(int iYear) {
        char iMonth = iLunarLeapMonthTable[(iYear - 1901) / 2];

        if (iYear % 2 == 0)
          return (iMonth & 0x0f);
        else
          return (iMonth & 0xf0) >> 4;
    }
    public 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 
    public 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;
    	}
    public 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 
    public 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 
    public 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);
    }
}


//测试类


package com.java.calendar;
public class Test {
    public static void main(String[] args) {
//     调用阳历日期转换农历日期方法 
        System.out.println(ChineseCalendar.sCalendarSolarToLundar(2012, 4, 9));
//     调用农历日期转换阳历日期方法 
        System.out.println(ChineseCalendar.sCalendarLundarToSolar(2012, 3, 19));
    }
}