import org.apache.commons.lang3.time.DateFormatUtils; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; /** * 农历工具类 */ public class ChineseCalendar { // 阳历日期 private Date date; // 农历日期 private Date nDate; // 是否是闰月 private boolean runyue; // 农历年份 private int nYear; // 农历月份 private int nMonth; // 农历日 private int nDay; final static SimpleDateFormat chineseDateFormat = new SimpleDateFormat("yyyy年MM月dd日"); final static SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd"); final static String[] chineseNumber = {"零", "一", "二", "三", "四", "五", "六", "七", "八", "九", "十", "十一", "十二"}; final String[] animals = new String[]{"鼠", "牛", "虎", "兔", "龙", "蛇", "马", "羊", "猴", "鸡", "狗", "猪"}; 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}; private ChineseCalendar() { } /** * 初始化 * * @param dateStr 阴历年月日 yyyy-MM-dd * @param isLeapMonth 是否是润月后的月？ * @return 农历 */ public static ChineseCalendar asChinaDate(String dateStr, Boolean isLeapMonth) { try { return asChinaDate(dateFormat.parse(dateStr), isLeapMonth); } catch (ParseException e) { throw new RuntimeException(e); } } public static ChineseCalendar asChinaDate(Date date, Boolean isLeapMonth) { int year, month, day; ChineseCalendar calendar = new ChineseCalendar(); Calendar cal = Calendar.getInstance(); cal.setTime(date); year = cal.get(Calendar.YEAR); month = cal.get(Calendar.MONTH) 1; day = cal.get(Calendar.DAY_OF_MONTH); int days = 0; // 年的总天数 for (int iYear = 1900; iYear < year; iYear ) { days = yearDays(iYear); } // 月的总天数 for (int iMonth = 1; iMonth < month; iMonth ) { days = monthDays(year, iMonth); } int leapMonth = leapMonth(year); // 闰哪个月,1-12 （双月） if ((isLeapMonth && leapMonth == month)) { days = monthDays(year, month); } else if (leapMonth < month) { days = leapDays(year); } days = day; Date baseDate = null; Date baseDate2 = null; try { baseDate = chineseDateFormat.parse("1900年1月31日"); baseDate2 = chineseDateFormat.parse("1970年1月1日"); } catch (ParseException e) { throw new RuntimeException(e); } // 1970年1月1日和1900年1月31日的差异 int offset = (int) ((baseDate2.getTime() - baseDate.getTime()) / 86400000L); days = days - offset - 1; long time = 1000L * days * 24 * 60 * 60; calendar.date = new Date(time); calendar.nYear = year; calendar.nMonth = month; calendar.nDay = day; calendar.runyue = leapMonth == month; try { calendar.nDate = chineseDateFormat.parse(calendar.nYear "年" calendar.nMonth "月" calendar.nDay "日"); } catch (ParseException e) { e.printStackTrace(); } return calendar; } public static ChineseCalendar as(String dateStr) { try { return as(dateFormat.parse(dateStr));
} catch (ParseException e) {
throw new RuntimeException(e);
}
}
public static ChineseCalendar as(Date date) {
ChineseCalendar chin = new ChineseCalendar();
chin.date = date;
Calendar cal = Calendar.getInstance();
cal.setTime(date);
int leapMonth = 0;
Date baseDate = null;
try {
baseDate = chineseDateFormat.parse("1900年1月31日");
} catch (ParseException e) {
e.printStackTrace();
}
// 求出和1900年1月31日相差的天数
assert baseDate != null;
int offset = (int) ((cal.getTime().getTime() - baseDate.getTime()) / 86400000L);
int iYear, daysOfYear = 0;
for (iYear = 1900; iYear < 2050 && offset > 0; iYear++) {
daysOfYear = yearDays(iYear);
offset -= daysOfYear;
}
if (offset < 0) {
offset += daysOfYear;
iYear--;
}
// 农历年份
chin.nYear = iYear;
leapMonth = leapMonth(iYear); // 闰哪个月,1-12
chin.runyue = 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) && !chin.runyue) {
--iMonth;
chin.runyue = true;
daysOfMonth = leapDays(chin.nYear);
} else
daysOfMonth = monthDays(chin.nYear, iMonth);
offset -= daysOfMonth;
// 解除闰月
if (chin.runyue && iMonth == (leapMonth + 1))
chin.runyue = false;
}
// 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 (chin.runyue) {
chin.runyue = false;
} else {
chin.runyue = true;
--iMonth;
}
}
// offset小于0时，也要校正
if (offset < 0) {
offset += daysOfMonth;
--iMonth;
}
chin.nMonth = iMonth;
chin.nDay = offset + 1;
try {
chin.nDate = chineseDateFormat.parse(chin.nYear + "年" + chin.nMonth + "月" + chin.nDay + "日");
} catch (ParseException e) {
e.printStackTrace();
}
return chin;
}
// ====== 传回农历 y年的总天数
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
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
private static int leapMonth(int y) {
return (int) (lunarInfo[y - 1900] & 0xf);
}
// ====== 传回农历 y年m月的总天数
private static int monthDays(int y, int m) {
if ((lunarInfo[y - 1900] & (0x10000 >> m)) == 0)
return 29;
else
return 30;
}
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 + 1];
}
private String getChinaYearStr() {
String yearStr = String.valueOf(nYear);
StringBuffer res = new StringBuffer();
for (int i = 0; i < yearStr.length(); i++) {
char s = yearStr.charAt(i);
res.append(chineseNumber[Integer.parseInt(String.valueOf(s))]);
}
return res.toString();
}
/**
* 获取年月日的中国说法
*
* @return 日期
*/
public String getChinaString() {
return getChinaYearStr() + "年" + (runyue ? "闰" : "") + chineseNumber[nMonth] + "月"
+ getChinaDayString(nDay);
}
/**
* 获取阴历的年
*
* @return 年
*/
public int getChinaYear() {
return nYear;
}
/**
* 获取阴历的月
*
* @return 月
*/
public int getChinaMonth() {
return nMonth;
}
/**
* 获取阴历的日
*
* @return 日
*/
public int getChinaDay() {
return nDay;
}
/**
* 获取阴历的生肖
*
* @return 生肖
*/
public String getChinaZodiac() {
return animals[(nYear - 4) % 12];
}
/**
* 获取阳历日期
*
* @return 阳历日期
*/
public Date getDate() {
return date;
}
/**
* 获取阴历日期
*
* @return 阳历日期
*/
public Date getNDate() {
return nDate;
}
/**
* 获取是否为润月中的第二个月
*
* @return 阳历日期
*/
public boolean isRunyue() {
return runyue;
}
public static void main(String[] args) {
ChineseCalendar calendar = ChineseCalendar.as("1995-10-05");
System.out.println(calendar.getChinaString());
System.out.println(calendar.getChinaYear());
System.out.println(calendar.getChinaMonth());
System.out.println(calendar.getChinaDay());
System.out.println(calendar.getChinaZodiac());
System.out.println(DateFormatUtils.format(calendar.getDate(), "yyyy-MM-dd"));
System.out.println(DateFormatUtils.format(calendar.getDate(), "yyyy-MM-dd"));
System.out.println(calendar.isRunyue());
//
System.out.println("====================");
ChineseCalendar calendar1 = ChineseCalendar.asChinaDate("1995-08-11", true);
System.out.println(calendar1.getChinaString());
System.out.println(calendar1.getChinaYear());
System.out.println(calendar1.getChinaMonth());
System.out.println(calendar1.getChinaDay());
System.out.println(calendar1.getChinaZodiac());
System.out.println(DateFormatUtils.format(calendar1.getDate(), "yyyy-MM-dd"));
System.out.println(DateFormatUtils.format(calendar1.getDate(), "yyyy-MM-dd"));
System.out.println(calendar1.isRunyue());
}
}