lxm_library_java/lunar-java
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v1.2.29 修复1582年总天数问题；修复八字转阳历遗漏问题。

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6tail
2023-01-30 21:58:53 +08:00
parent c3082dbbf2
commit 30f1e63579
10 changed files with 245 additions and 80 deletions
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24
src/main/java/com/nlf/calendar/ExactDate.java
View File

@@ -52,27 +52,7 @@ public class ExactDate {
* @return 天数
*/
public static int getDaysBetween(int ay, int am, int ad, int by, int bm, int bd) {
int n;
int days;
int i;
if (ay == by) {
n = SolarUtil.getDaysInYear(by, bm, bd) - SolarUtil.getDaysInYear(ay, am, ad);
} else if (ay > by) {
days = SolarUtil.getDaysOfYear(by) - SolarUtil.getDaysInYear(by, bm, bd);
for (i = by + 1; i < ay; i++) {
days += SolarUtil.getDaysOfYear(i);
}
days += SolarUtil.getDaysInYear(ay, am, ad);
n = -days;
} else {
days = SolarUtil.getDaysOfYear(ay) - SolarUtil.getDaysInYear(ay, am, ad);
for (i = ay + 1; i < by; i++) {
days += SolarUtil.getDaysOfYear(i);
}
days += SolarUtil.getDaysInYear(by, bm, bd);
n = days;
}
return n;
return SolarUtil.getDaysBetween(ay, am, ad, by, bm, bd);
}
/**
@@ -83,6 +63,6 @@ public class ExactDate {
* @return 天数
*/
public static int getDaysBetween(Calendar calendar0, Calendar calendar1) {
return getDaysBetween(calendar0.get(Calendar.YEAR), calendar0.get(Calendar.MONTH) + 1, calendar0.get(Calendar.DATE), calendar1.get(Calendar.YEAR), calendar1.get(Calendar.MONTH) + 1, calendar1.get(Calendar.DATE));
return SolarUtil.getDaysBetween(calendar0.get(Calendar.YEAR), calendar0.get(Calendar.MONTH) + 1, calendar0.get(Calendar.DATE), calendar1.get(Calendar.YEAR), calendar1.get(Calendar.MONTH) + 1, calendar1.get(Calendar.DATE));
}
}

64
src/main/java/com/nlf/calendar/Solar.java
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@@ -277,64 +277,38 @@ public class Solar {
public static List<Solar> fromBaZi(String yearGanZhi, String monthGanZhi, String dayGanZhi, String timeGanZhi, int sect, int baseYear) {
sect = (1 == sect) ? 1 : 2;
List<Solar> l = new ArrayList<Solar>();
Solar today = new Solar();
Lunar lunar = today.getLunar();
int offsetYear = LunarUtil.getJiaZiIndex(lunar.getYearInGanZhiExact()) - LunarUtil.getJiaZiIndex(yearGanZhi);
if (offsetYear < 0) {
offsetYear = offsetYear + 60;
List<Integer> years = new ArrayList<Integer>();
Solar today = fromDate(new Date());
int offsetYear = LunarUtil.getJiaZiIndex(today.getLunar().getYearInGanZhiExact())-LunarUtil.getJiaZiIndex(yearGanZhi);
if(offsetYear < 0){
offsetYear += 60;
}
int startYear = today.getYear() - offsetYear - 1;
while (startYear >= baseYear) {
years.add(startYear);
startYear -= 60;
}
int startYear = lunar.getYear() - offsetYear;
int hour = 0;
String timeZhi = timeGanZhi.substring(1);
for (int i = 0, j = LunarUtil.ZHI.length; i < j; i++) {
if (LunarUtil.ZHI[i].equals(timeZhi)) {
for(int i = 0, j = LunarUtil.ZHI.length; i < j; i++){
if(LunarUtil.ZHI[i].equals(timeZhi)){
hour = (i - 1) * 2;
}
}
while (startYear >= baseYear) {
int year = startYear - 1;
int counter = 0;
int month = 12;
int day;
boolean found = false;
while (counter < 15) {
if (year >= baseYear) {
day = 1;
Solar solar = new Solar(year, month, day, hour, 0, 0);
lunar = solar.getLunar();
if (lunar.getYearInGanZhiExact().equals(yearGanZhi) && lunar.getMonthInGanZhiExact().equals(monthGanZhi)) {
found = true;
break;
}
}
month++;
if (month > 12) {
month = 1;
year++;
}
counter++;
}
if (found) {
counter = 0;
month--;
if (month < 1) {
month = 12;
year--;
}
day = 1;
Solar solar = new Solar(year, month, day, hour, 0, 0);
while (counter < 61) {
lunar = solar.getLunar();
for (Integer integer : years) {
inner: for (int x = 0; x < 3; x++) {
int year = integer + x;
Solar solar = fromYmdHms(year, 1, 1, hour, 0, 0);
while (solar.getYear() == year) {
Lunar lunar = solar.getLunar();
String dgz = (2 == sect) ? lunar.getDayInGanZhiExact2() : lunar.getDayInGanZhiExact();
if (lunar.getYearInGanZhiExact().equals(yearGanZhi) && lunar.getMonthInGanZhiExact().equals(monthGanZhi) && dgz.equals(dayGanZhi) && lunar.getTimeInGanZhi().equals(timeGanZhi)) {
l.add(solar);
break;
break inner;
}
solar = solar.next(1);
counter++;
}
}
startYear -= 60;
}
return l;
}

74
src/main/java/com/nlf/calendar/util/SolarUtil.java
View File

@@ -157,6 +157,9 @@ public class SolarUtil {
* @return 天数
*/
public static int getDaysOfYear(int year) {
if (1582 == year) {
return 355;
}
return isLeapYear(year) ? 366 : 365;
}
@@ -193,10 +196,15 @@ public class SolarUtil {
for (int i = 1; i < month; i++) {
days += getDaysOfMonth(year, i);
}
days += day;
if (1582 == year && 10 == month && day >= 15) {
days -= 10;
int d = day;
if (1582 == year && 10 == month) {
if (day >= 15) {
d -= 10;
} else if (day > 4) {
throw new IllegalArgumentException(String.format("wrong solar year %d month %d day %d", year, month, day));
}
}
days += d;
return days;
}
@@ -213,4 +221,64 @@ public class SolarUtil {
int week = ExactDate.fromYmd(year, month, 1).get(Calendar.DAY_OF_WEEK) - 1;
return (int) Math.ceil((days + week - start) * 1D / WEEK.length);
}
/**
* 获取两个日期之间相差的天数（如果日期a比日期b小，天数为正，如果日期a比日期b大，天数为负）
*
* @param ay 年a
* @param am 月a
* @param ad 日a
* @param by 年b
* @param bm 月b
* @param bd 日b
* @return 天数
*/
public static int getDaysBetween(int ay, int am, int ad, int by, int bm, int bd) {
int n;
int days;
int i;
if (ay == by) {
n = getDaysInYear(by, bm, bd) - getDaysInYear(ay, am, ad);
} else if (ay > by) {
days = getDaysOfYear(by) - getDaysInYear(by, bm, bd);
for (i = by + 1; i < ay; i++) {
days += getDaysOfYear(i);
}
days += getDaysInYear(ay, am, ad);
n = -days;
} else {
days = getDaysOfYear(ay) - getDaysInYear(ay, am, ad);
for (i = ay + 1; i < by; i++) {
days += getDaysOfYear(i);
}
days += getDaysInYear(by, bm, bd);
n = days;
}
return n;
}
public static int getWeek(int y, int m, int d) {
if (1582 == y && 10 == m) {
if (d > 4 && d < 15) {
throw new IllegalArgumentException(String.format("wrong solar year %d month %d day %d", y, m, d));
}
}
Calendar start = ExactDate.fromYmd(1582, 10, 15);
Calendar current = ExactDate.fromYmd(y, m, d);
// 蔡勒公式
if (m < 3) {
m += 12;
y--;
}
int c = y/100;
y = y - c * 100;
int w;
int x = y + y / 4 + c / 4 - 2 * c;
if (current.before(start)) {
w = (x + (13*(m+1))/5 + d + 2) % 7;
} else {
w = (x + (26*(m+1))/10 + d - 1) % 7;
}
return (w + 7) % 7;
}
}