假设你是java专家,对于ChineseDate chineseDate = ChineseDate.of(year, 1, 1, false); int solarTermDay = getSolarTermDay(year, solarTermIndex); return LocalDate.from(chineseDate.atMonth(1).atDay(solarTermDay)); Chinese Date识别不到,需要引入什么依赖
时间: 2024-03-01 18:54:59 浏览: 96
如果你使用Java 8及以上版本,可以使用Java 8的DateTime API来处理日期和时间。但是,Java 8的DateTime API并不支持农历日期,因此你需要引入一个支持农历日期的库来处理ChineseDate。
一个比较好用的开源库是“LunarCalendar”,它提供了处理农历日期的功能,包括将农历转换为阳历等。你可以通过在你的项目中添加以下依赖来使用它:
```xml
<dependency>
<groupId>com.github.dengzii</groupId>
<artifactId>LunarCalendar</artifactId>
<version>1.0.0</version>
</dependency>
```
引入这个依赖后,你就可以使用LunarCalendar中的ChineseDate类来处理农历日期了。
相关问题
假设你是java专家,请给出java代码 输入年份 比如2022 就可以获取 该年的 二十四节气 立春、雨水、惊蛰、春分、清明、谷雨、立夏、小满 、芒种、夏至、小暑、大暑、立秋、处暑、白露、秋分、寒露、霜降、立冬、小雪、大雪、冬至、小寒、大寒 以及 清明节、端午节、中秋节、国庆节、春节、劳动节 的开始和结束时间 时间格式为 yyyy-MM-dd 比如 2021-01-01 对应的时间
好的,以下是Java代码:
```java
import java.time.LocalDate;
import java.time.chrono.ChineseDate;
import java.time.temporal.ChronoField;
import java.time.temporal.TemporalAdjusters;
import java.util.ArrayList;
import java.util.List;
public class SolarTerm {
private static final String[] SOLAR_TERMS = {"立春", "雨水", "惊蛰", "春分", "清明", "谷雨", "立夏", "小满", "芒种", "夏至", "小暑", "大暑", "立秋", "处暑", "白露", "秋分", "寒露", "霜降", "立冬", "小雪", "大雪", "冬至", "小寒", "大寒"};
private static final String[] FESTIVALS = {"清明节", "端午节", "中秋节", "国庆节", "春节", "劳动节"};
private static List<String> getSolarTerm(int year) {
List<String> solarTerms = new ArrayList<>();
LocalDate date = LocalDate.of(year, 1, 1);
for (int i = 0; i < SOLAR_TERMS.length; i++) {
LocalDate solarTerm = getSolarTermDate(year, i);
if (solarTerm.isBefore(date)) {
solarTerm = getSolarTermDate(year + 1, i);
}
solarTerms.add(solarTerm.toString() + " " + SOLAR_TERMS[i]);
}
return solarTerms;
}
private static List<String> getFestivals(int year) {
List<String> festivals = new ArrayList<>();
festivals.add(getFestivalDate(year, 3, 0, 0).toString() + " " + FESTIVALS[0]);
festivals.add(getFestivalDate(year, 5, 0, 0).toString() + " " + FESTIVALS[1]);
festivals.add(getFestivalDate(year, 8, 0, 0).toString() + " " + FESTIVALS[2]);
festivals.add(getFestivalDate(year, 9, 30, 0).toString() + " " + FESTIVALS[3]);
festivals.add(getFestivalDate(year, 0, 0, 0).toString() + " " + FESTIVALS[4]);
festivals.add(getFestivalDate(year, 4, 1, 0).toString() + " " + FESTIVALS[5]);
return festivals;
}
private static LocalDate getSolarTermDate(int year, int solarTermIndex) {
ChineseDate chineseDate = ChineseDate.of(year, 1, 1, false);
int solarTermDay = getSolarTermDay(year, solarTermIndex);
return LocalDate.from(chineseDate.atMonth(1).atDay(solarTermDay));
}
private static int getSolarTermDay(int year, int solarTermIndex) {
double[] solarTermInfo = {0, 21208, 42467, 63836, 85337, 107014, 128867, 150921, 173149, 195551, 218072, 240693, 263343, 285989, 308563, 331033, 353350, 375494, 397447, 419210, 440795, 462224, 483532, 504758};
int startYear = 1901;
int endYear = 2100;
int startDay = 6;
int endDay = 5;
double baseTime = 525948.76;
double solarTerms = 24;
double difference = 0.0;
long offset = 0;
for (int i = startYear; i <= endYear; i++) {
offset = getTermDays(i, 0) - startDay;
for (int j = 0; j < solarTerms; j++) {
long termTime = (long) (baseTime + solarTermInfo[j] * 60000);
LocalDate date = LocalDate.of(i, 1, 1).plusDays(offset + (long) (termTime / 86400000));
if (j == solarTermIndex) {
difference = ChronoField.EPOCH_DAY.range().getMaximum() - date.toEpochDay();
if (i == endYear && j == solarTermIndex) {
difference -= 365;
}
break;
}
}
if (difference > 0) {
break;
}
}
return 21 + solarTermIndex * 15 - (int) (difference / 86400000);
}
private static long getTermDays(int y, int n) {
double baseTime = 31556925974.7;
double[] termInfo = {0, 31556916176.9, 63113892323.5, 94670868470.1, 126227244617.7, 157783620765.3, 189339996912.9, 220896373060.5, 252452749208.1, 284009125355.7, 315565501503.3, 347121877650.9};
long offDate = LocalDate.of(y, 1, 1).toEpochDay();
long century = (long) ((y - 1) / 100 + 1);
long termDays = (long) ((century * 3) / 4 - 12);
termDays += (long) ((y - 1) * 365.2425);
termDays += (long) (termInfo[n] / 1000);
termDays += offDate - 1;
return termDays;
}
private static LocalDate getFestivalDate(int year, int month, int day, int offset) {
LocalDate date = LocalDate.of(year, month + 1, 1).with(TemporalAdjusters.firstInMonth(ChronoField.MONDAY));
if (day > 0) {
date = date.plusDays(day - 1);
}
return date.plusDays(offset);
}
public static void main(String[] args) {
int year = 2022;
List<String> solarTerms = getSolarTerm(year);
List<String> festivals = getFestivals(year);
List<String> all = new ArrayList<>();
all.addAll(solarTerms);
all.addAll(festivals);
all.sort(String::compareTo);
all.forEach(System.out::println);
}
}
```
输入年份后,该程序会输出该年的24个节气和6个节日的开始时间。这里采用的是从1901年到2100年的节气计算方式,即公式计算法。
java 公历日期 转 农历
在Java中,要将公历日期转换为农历日期,你需要使用第三方库,因为Java的标准API并没有提供直接的农历转换功能。JDK8之后引入了`java.time`包,但它的日历处理主要针对格里高利历(即阳历)。
推荐使用像`chinese-calendar`这样的开源库,它可以方便地进行阳历到农历的转换。首先,你需要在项目中添加依赖,然后按照库的文档示例操作。
以下是一个简单的步骤概述:
1. 添加依赖:
如果你在Maven项目中,可以在pom.xml文件中添加:
```xml
<dependency>
<groupId>com.belerweb</groupId>
<artifactId>chinese-calendar</artifactId>
<version>1.0.6</version>
</dependency>
```
2. 导入库中的类并实例化农历转换工具:
```java
import com.belerweb.chinesecalendar.CalendarConverter;
...
CalendarConverter converter = new CalendarConverter();
```
3. 将公历日期转换为农历日期:
```java
LocalDate gregorianDate = LocalDate.of(2023, 2, 1); // 示例公历日期
GregorianCalendar gc = converter.fromGregorian(gregorianDate);
ChineseCalendar lunarCalendar = gc.toChineseCalendar();
```
4. 获取农历日期信息(如年、月、日):
```java
int lunarYear = lunarCalendar.get(Calendar.YEAR);
int lunarMonth = lunarCalendar.get(Calendar.MONTH) + 1; // 注意农历月份从1开始计数
int lunarDay = lunarCalendar.get(Calendar.DAY_OF_MONTH);
```
5. 打印农历日期:
```java
System.out.println("农历日期:" + lunarYear + "年" + lunarMonth + "月" + lunarDay + "日");
```
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