java版本的八字计算

看了网上不少的例子，整理一个能计算1900年以后的八字计算程序。同时能获取生肖以及阴历生日

package com.knight.cal;

import java.text.ParseException;

import java.text.SimpleDateFormat;

import java.util.Calendar;

import java.util.Date;

/**

* 根据西元的生日时辰获取某个人的生辰八字，以及农历生日

*@author kongqz

* */

public class BaZi {

private int year;

private int month;

private int day;

private boolean leap;

Date baseDate = null;

final static String chineseNumber[] = {"正", "二", "三", "四", "五", "六", "七", "八", "九", "十", "十一", "腊"};

final static String[] Gan = {"甲", "乙", "丙", "丁", "戊", "己", "庚", "辛", "壬", "癸"};

final static String[] Zhi = {"子", "丑", "寅", "卯", "辰", "巳", "午", "未", "申", "酉", "戌", "亥"};

static SimpleDateFormat chineseDateFormat = new SimpleDateFormat("yyyy-MM-dd");

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

};

/**

* 六十甲子

*/

public static final String[] jiazhi = {

"甲子", "乙丑", "丙寅", "丁卯", "戊辰", "己巳", "庚午", "辛未", "壬申", "癸酉",

"甲戌", "乙亥", "丙子", "丁丑", "戊寅", "己卯", "庚辰", "辛巳", "壬午", "癸未",

"甲申", "乙酉", "丙戌", "丁亥", "戊子", "己丑", "庚寅", "辛卯", "壬辰", "癸巳",

"甲午", "乙未", "丙申", "丁酉", "戊戌", "己亥", "庚子", "辛丑", "壬寅", "癸卯",

"甲辰", "乙巳", "丙午", "丁未", "戊申", "己酉", "庚戌", "辛亥", "壬子", "癸丑",

"甲寅", "乙卯", "丙辰", "丁巳", "戊午", "己未", "庚申", "辛酉", "壬戌", "癸亥"

};

private Calendar cal;

/**

* @param hour 这里的时间范围是1-12，具体几点到几点是子时、丑时请参考相关文档

* 具体的选择如下 "子：1", "丑：2", "寅：3", "卯：4", "辰：5", "巳：6", "午：7", "未：8", "申：9", "酉：10", "戌：11", "亥：12"

* @author kongqz

* */

public String getYearGanZhi(int hour) {

//1864年是甲子年，每隔六十年一个甲子

int idx = (year - 1864) % 60;

//没有过春节的话那么年还算上一年的，此处求的年份的干支

String y = jiazhi[idx];

String m="";

String d="";

String h="";

idx = idx % 5;

int idxm=0;

/**

* 年上起月

* 甲己之年丙作首，乙庚之岁戊为头，

* 丙辛必定寻庚起，丁壬壬位顺行流，

* 更有戊癸何方觅，甲寅之上好追求。

*/

idxm=(idx+1)*2;

if(idxm==10) idxm=0;

//求的月份的干支

m=Gan[(idxm+month-1)%10]+Zhi[(month+2-1)%12];

/*求出和1900年1月31日甲辰日相差的天数

* 甲辰日是第四十天

*/

int offset = (int) ((cal.getTime().getTime() - baseDate.getTime()) / 86400000L);

offset=(offset+40)%60;

//求的日的干支

d=jiazhi[offset];

/**

* 日上起时

* 甲己还生甲，乙庚丙作初，

* 丙辛从戊起，丁壬庚子居，

* 戊癸何方发，壬子是真途。

*/

offset=(offset % 5 )*2;

//求得时辰的干支

h=Gan[(offset+hour-1)%10]+Zhi[hour-1];

//在此处输出我们的年月日时的天干地支

return y+m+d+h;

}

public String getShichenFromDay(int offset){

return null;

}

//====== 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) {

return (int) (lunarInfo[y - 1900] & 0xf);

}

//====== 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;

}

}

/***

* @return 传回农历 y年的生肖

*/

final public String animalsYear() {

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) {

return (Gan[num % 10] + Zhi[num % 12]);

}

//====== 传入 offset 传回干支, 0=甲子

final public String cyclical() {

int num = year - 1900 + 36;

return (cyclicalm(num));

}

/**

* 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 ?

*

* @param cal

* @return

*/

public BaZi(Calendar cal) {

this.cal=cal;

int yearCyl, monCyl, dayCyl;

int leapMonth = 0;

try {

baseDate = chineseDateFormat.parse("1900-1-31");

} 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) ((cal.getTime().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 < 2050 && offset > 0; iYear++) {

daysOfYear = yearDays(iYear);

offset -= daysOfYear;

monCyl += 12;

}

if (offset < 0) {

offset += daysOfYear;

iYear--;

monCyl -= 12;

}

//农历年份

year = iYear;

yearCyl = iYear - 1864;

leapMonth = leapMonth(iYear); //闰哪个月,1-12

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;

day = offset + 1;

}

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
;

}

}

public String toString() {

return getYearStr(year) + "年" + (leap ? "闰" : "") + chineseNumber[month - 1] + "月" + getChinaDayString(day);

}

public String getYearStr(int year) {

String[] chineseword = {"零", "一", "二", "三", "四", "五", "六", "七", "八", "九"};

String ys = "";

int index = year / 1000;

ys += chineseword[index];

year = year % 1000;

index = year / 100;

ys += chineseword[index];

year = year % 100;

index = year / 10;

ys += chineseword[index];

year = year % 10;

index = year;

ys += chineseword[index];

return ys;

}

public static String getSixtyDay() {

String temp = "";

for (int i = 0; i < 60; i++) {

temp += ",/"" + cyclicalm(i) + "/"";

}

return temp;

}

/**

* 针对一个在西元 1983-01-10 中午12：30生的人的计算。

* 这里12点半在中国的古代历书中算是午时

* 子时23.00－1.00,丑时1.00－3.00,寅时3.00－5.00,卯时5.00－7.00,

* 辰时7.00－9.00,巳时9.00－11.00,午时11.00－13.00,未时13.00－15.00

* 申时15.00－17.00,酉时17.00－19.00,戌时19.00－21.00,亥时21.00－23.00

* */

public static void main(String[] args){

SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");

Calendar cal = Calendar.getInstance();

try {

//设定此人的西元时间为1983-01-10

cal.setTime(sdf.parse("1983-01-10"));

BaZi lunar = new BaZi(cal);

System.out.println("此人农历的日期【"+lunar.toString()+"】");

//此处是为了获取时间在中国的八字学说上的显示，此人是午时生的

System.out.println("此人八字【"+lunar.getYearGanZhi(7)+"】");

//获取生肖

System.out.println("此人的农历生肖【"+lunar.animalsYear()+"】");

}catch(Exception e){

e.printStackTrace();

}

}

}

如果有更好的版本，能计算前后节气的，一起拿出来共享吧：）