java 根据阳历计算阴历 属相代码_JAVA_编程开发_程序员俱乐部

   分享java根据阳历计算阴历（农历）代码，当项目有这个需求时，可以直接使用下面的java类。
   这里分享根据阳历（当前日期）计算出阴历（农历）、属相、星期的java代码；因为农历也很重要，还有很多人都是过农历生日的。这个java类，在一起 学习交流分享网也使用上了，功能页面请参考：纪念日 日期推算
  

class="java" name="code">import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
 
/**
 * java根据阳历计算阴历，属相，星期(纪念日，日期推算参考另一篇文章)
 * 
 * [url=http://www.zyiqibook.com]在一起 学习交流分享网  功能源码分享[/url]
 * @author xfxpeter@gmail.com
 */
public class Lunar {
    private int year;
    private int month;
    private int day;
    private boolean leap;
    final static String chineseNumber[] = { "正", "二", "三", "四", "五", "六", "七",
            "八", "九", "十", "十一", "腊" };
    final static String chineseNumber1[] = { "一", "二", "三", "四", "五", "六", "七",
            "八", "九", "十", "十一", "十二" };
    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 };
 
    // ====== 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;
    }
 
    // ====== 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) {
        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 num = year - 1900 + 36;
        return (cyclicalm(num));
    }
 
    public Lunar(Calendar cal) {
        int yearCyl, monCyl, dayCyl;
        int leapMonth = 0;
        Date baseDate = null;
        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] + chineseNumber1[n];
    }
 
    public String toString() {
        return (leap ? "闰" : "") + chineseNumber[month - 1] + "月"
                + getChinaDayString(day);
    }
 
    public String getChinaWeekdayString(String weekday) {
        if (weekday.equals("Mon"))
            return "一";
        if (weekday.equals("Tue"))
            return "二";
        if (weekday.equals("Wed"))
            return "三";
        if (weekday.equals("Thu"))
            return "四";
        if (weekday.equals("Fri"))
            return "五";
        if (weekday.equals("Sat"))
            return "六";
        if (weekday.equals("Sun"))
            return "日";
        else
            return "";
 
    }
 
    public static void main(String[] args) throws ParseException {
        Calendar today = Calendar.getInstance();
        //today.setTime(new java.util.Date());// 加载当前日期
        today.setTime(chineseDateFormat.parse("2015-04-02"));//加载自定义日期
         
        Lunar lunar = new Lunar(today);
        System.out.print(lunar.cyclical() + "年");// 计算输出阴历年份
        System.out.println(lunar.toString());// 计算输出阴历日期
        System.out.println(lunar.animalsYear());// 计算输出属相
        System.out.println(new java.sql.Date(today.getTime().getTime()));// 输出阳历日期
        System.out.println("星期"
                + lunar.getChinaWeekdayString(today.getTime().toString()
                        .substring(0, 3)));// 计算输出星期几
        /**
         * 输出结果：
         * 乙未年二月十四
         * 羊
         * 2015-04-02
         * 星期四
         */
    }
}

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