根据公历日期获取到农历日期信息（带星座）（C#）
直接上码，都有注释说明
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
namespace ConsoleApp.Models
{
public class ChineseCalendarModel
{
///
/// 构造函数 CreateDate：2020-01-09 17:45:57；Author：Ling_bug
///
///
public ChineseCalendarModel(DateTime date)
{
Init(date);
}
///
/// 初始化 CreateDate：2020-01-09 17:46:28；Author：Ling_bug
///
///
private void Init(DateTime date)
{
this.ParameterDate = date;
char o = '、';
//十天干
string a = "甲、乙、丙、丁、戊、己、庚、辛、壬、癸";
this.HeavenlyStems = a.Split(o);
//十二地支
string b = "子、丑、寅、卯、辰、巳、午、未、申、酉、戌、亥";
this.EarthlyBranches = b.Split(o);
//十二生肖
string c = "鼠、牛、虎、兔、龙、蛇、马、羊、猴、鸡、狗、猪";
this.ChineseZodiacs = c.Split(o);
//月份
string d = "正、二、三、四、五、六、七、八、九、十、十一、腊";
this.Months = d.Split(o);
//日期开头
string e = "初、十、甘、三";
this.DaysTitle = e.Split(o);
//日期结尾
string f = "一、二、三、四、五、六、七、八、九、十";
this.Days = f.Split(o);
InitConstellations();
InitConstellationData();
//获取农历日期
InitChineseCalendarDate();
}
///
/// 找到参数对应的星座 CreateDate：2020-01-10 11:03:49；Author：Ling_bug
///
private void InitConstellationData()
{
int month = this.ParameterDate.Month;
int day = this.ParameterDate.Day;
//找到与开始日期匹配的或者结束日期匹配的（说明该参数日期是这个星座的开始的那一天或者结束的那一天）
var equalModel = this.Constellations.FirstOrDefault(r => (r.BeginMonth == month && r.BeginDay == day) || (r.EndMonth == month && r.EndDay == day));
if (equalModel == null)
{
bool isFindFromEnd = true;
//找到开始月相同的
var beginMonthModel = this.Constellations.FirstOrDefault(r => r.BeginMonth == month);
//如果找到了并且当前日大于开始日，则匹配正确
if (beginMonthModel != null && day > beginMonthModel.BeginDay)
{
this.ConstellationName = beginMonthModel.ConstellationName;
isFindFromEnd = false;
}
//如果没有找到，则匹配结束的
if (isFindFromEnd)
{
//找到结束月相同的
var endMonthModel = this.Constellations.FirstOrDefault(r => r.EndMonth == month);
//如果有结束月相同的，并且当前日小于结束日的，则匹配成功
if (endMonthModel != null && day < endMonthModel.EndDay)
{
this.ConstellationName = endMonthModel.ConstellationName;
}
}
}
else
{
this.ConstellationName = equalModel.ConstellationName;
}
}
///
/// 初始化星座集合 CreateDate：2020-01-10 11:03:23；Author：Ling_bug
///
private void InitConstellations()
{
this.Constellations = new List()
{
new ConstellationModel("白羊", "3-21", "4-19"),
new ConstellationModel("金牛", "4-20", "5-20"),
new ConstellationModel("双子", "5-21", "6-21"),
new ConstellationModel("巨蟹", "6-22", "7-22"),
new ConstellationModel("狮子", "7-23", "8-22"),
new ConstellationModel("处女", "8-23", "9-22"),
new ConstellationModel("天秤", "9-23", "10-23"),
new ConstellationModel("天蝎", "10-24", "11-22"),
new ConstellationModel("射手", "11-23", "12-21"),
new ConstellationModel("摩羯", "12-22", "1-19"),
new ConstellationModel("水瓶", "1-20", "2-18"),
new ConstellationModel("双鱼", "2-19", "3-20")
};
}
///
/// 获取到农历日期 CreateDate：2020-01-09 17:46:52；Author：Ling_bug
///
private void InitChineseCalendarDate()
{
//农历日期服务类
var calendarService = new ChineseLunisolarCalendar();
//农历年
this.Year = calendarService.GetYear(this.ParameterDate);
//农历月（闰年时不同）
this.Month = calendarService.GetMonth(this.ParameterDate);
//农历日
this.Day = calendarService.GetDayOfMonth(this.ParameterDate);
//获取到该年的闰月
this.LeapMonth = calendarService.GetLeapMonth(this.Year);
this.InitResultMonth();
this.InitLunisolarTitle();
//农历日期字符串
this.ChineseCalendarDateStr = $"{this.HeavenlyStem}{this.EarthlyBranch}{this.ChineseZodiac}年{this.IsLeapTitle}{this.MonthTitle}月{this.DayTitle}[{this.Year}-{this.ResultMonth}-{this.Day}]";
}
///
/// 获取到真正的农历月（考虑闰月的情况） CreateDate：2020-01-09 17:48:31；Author：Ling_bug
///
private void InitResultMonth()
{
this.ResultMonth = this.Month;
if (this.LeapMonth > 0)
{
this.IsLeap = this.Month == this.LeapMonth;
//如果当前月大于等于闰月，则需要减一（例如闰月是7月，查询出来是8月，实际上当前月份其实是7月，所以需要减一）
if (this.Month >= this.LeapMonth)
{
this.ResultMonth--;
}
}
this.IsLeapTitle = this.IsLeap ? "闰" : string.Empty;
}
///
/// 获取到要显示的title CreateDate：2020-01-09 18:23:35；Author：Ling_bug
///
private void InitLunisolarTitle()
{
var yearHelper = this.Year - 4;
var indexHeavenlyStem = yearHelper % 10;
var indexEarthlyBranchAndChineseZodiac = yearHelper % 12;
this.HeavenlyStem = this.HeavenlyStems[indexHeavenlyStem];
this.EarthlyBranch = this.EarthlyBranches[indexEarthlyBranchAndChineseZodiac];
this.ChineseZodiac = this.ChineseZodiacs[indexEarthlyBranchAndChineseZodiac];
this.MonthTitle = this.Months[this.ResultMonth - 1];
InitDayTitle();
}
///
/// 获取到年月日中日的title CreateDate：2020-01-09 18:24:13；Author：Ling_bug
///
private void InitDayTitle()
{
var dayHelper = this.Day - 1;
var indexHelperDayDiv = dayHelper / 10;
if (this.Day == 20 || this.Day == 30)
{
this.DayTitle = this.Days[indexHelperDayDiv] + this.DaysTitle[1];
}
else
{
var indexHelperDayMod = dayHelper % 10;
this.DayTitle = this.DaysTitle[indexHelperDayDiv] + this.Days[indexHelperDayMod];
}
}
///
/// 需要转换的公历日期参数
///
public DateTime ParameterDate { get; set; }
///
/// 农历年
///
public int Year { get; set; }
///
/// 农历月（闰月时不同）
///
public int Month { get; set; }
///
/// 农历月（自动计算考虑闰月的情况）
///
public int ResultMonth { get; set; }
///
/// 农历日
///
public int Day { get; set; }
///
/// 今年哪个月是闰月
///
public int LeapMonth { get; set; }
///
/// 当前是否是闰月
///
public bool IsLeap { get; set; }
///
/// 十天干
///
public string[] HeavenlyStems { get; private set; }
///
/// 十二地支
///
public string[] EarthlyBranches { get; private set; }
///
/// 十二生肖
///
public string[] ChineseZodiacs { get; private set; }
///
/// 星座
///
public List Constellations { get; private set; }
///
/// 月
///
public string[] Months { get; private set; }
///
/// 日期头
///
public string[] DaysTitle { get; private set; }
///
/// 日期尾
///
public string[] Days { get; private set; }
///
/// 天干
///
public string HeavenlyStem { get; set; }
///
/// 地支
///
public string EarthlyBranch { get; set; }
///
/// 生肖
///
public string ChineseZodiac { get; set; }
///
/// 星座
///
public string ConstellationName { get; set; }
///
/// 月
///
public string MonthTitle { get; set; }
///
/// 日期
///
public string DayTitle { get; set; }
///
/// 闰月
///
public string IsLeapTitle { get; set; }
///
/// 结果字符串
///
public string ChineseCalendarDateStr { get; set; }
}
}
匹配星座还有一种写法：
var constellationList = this.Constellations.FindAll(r =>
{
bool begin = r.BeginMonth == month && r.BeginDay == day;
bool end = r.EndMonth == month && r.EndDay == day;
bool granterBegin = r.BeginMonth == month && day > r.BeginDay;
bool lessEnd = r.EndMonth == month && day < r.EndDay;
return begin || end || granterBegin || lessEnd;
});
if (constellationList.Any())
{
if (constellationList.Count == 1)
{
this.ConstellationName = constellationList.First().ConstellationName;
}
else
{
throw new Exception($"匹配到{constellationList.Count}个星座，month = {month}，day = {day}");
}
}
else
{
throw new Exception($"未匹配到星座，month = {month}，day = {day}");
}
星座对象：
using System;
namespace ConsoleApp.Models
{
///
/// 星座 CreateDate：2020-01-10 10:19:23；Author：Ling_bug
///
public class ConstellationModel
{
public ConstellationModel(string constellationName, string beginDate, string endDate)
{
this.ConstellationName = constellationName;
if (this.ConstellationName.Length == 2)
{
this.ConstellationName += "座";
}
this.BeginDate = Convert.ToDateTime(beginDate);
this.EndDate = Convert.ToDateTime(endDate);
this.BeginMonth = this.BeginDate.Month;
this.BeginDay = this.BeginDate.Day;
this.EndMonth = this.EndDate.Month;
this.EndDay = this.EndDate.Day;
}
public DateTime BeginDate { get; private set; }
public int BeginMonth { get; private set; }
public int BeginDay { get; private set; }
public int EndMonth { get; private set; }
public int EndDay { get; private set; }
public DateTime EndDate { get; private set; }
public string ConstellationName { get; private set; }
}
}
测试一下：
测试代码：
using System;
using System.Collections.Generic;
using System.Linq;
using ConsoleApp.Models;
namespace ConsoleApp.Services
{
public class TestChineseCalendarService
{
public static void Run1()
{
var model = new ChineseCalendarModel(DateTime.Now);
int index = 0;
foreach (var proc in model.GetType().GetProperties())
{
var value = proc.GetValue(model);
Console.WriteLine($"{++index}.{proc.Name}：{value}");
}
}
public static void Run2()
{
var begin = Convert.ToDateTime("2020-1-1");
var end = Convert.ToDateTime("2020-12-31");
int count = 0;
var list = new List();
while (begin <= end)
{
var item = new ChineseCalendarModel(begin);
list.Add(item);
Console.WriteLine(begin.ToString("yyyy-MM-dd") + "：" + item.ChineseCalendarDateStr + $"[{item.ConstellationName}]");
begin = begin.AddDays(1);
count++;
}
Console.WriteLine();
Console.WriteLine($"共{count}条");
Console.WriteLine($"未匹配到星座的：{list.Count(r => string.IsNullOrWhiteSpace(r.ConstellationName))}");
}
}
}
Run1测试结果：
Run2测试结果：
Ending~