在做一些数据统计或者时间方面的开发时，通常会遇到需要对时间的农历与阴历之间相互进行转化，需要查询当前日期是否为春节或其他节日，判断是否为春节期间“jrDate == "除夕" || jrDate == "春节" || jrSDate.Day < 7 && jrMonth == "正月"”，可以使用此工具类。
DateTime nDate = Convert.ToDateTime(date); //当前需要转换的日期
string jrDate = ChinaDate.GetChinaHoliday(nDate); //获取农历节日
string jrMonth = ChinaDate.GetMonth(nDate); //获取农历月份
string jrDay = ChinaDate.GetDay(nDate); //获取农历日期
DateTime jrSDate = ChinaDate.GetSunYearDate(nDate); //阳历转阳历
DateTime jrLDate = ChinaDate.GetLunarYearDate(jrSDate.AddYears(-1)); //阴历转阳历
///
/// 农历与阴历之间相互转化工具类
///
publicclassChinaDate
{
#region农历信息获取
private static ChineseLunisolarCalendar china=newChineseLunisolarCalendar();
privates tatic Hashtable gHoliday=new Hashtable();
private static Hashtable nHoliday=new Hashtable();
private static string[] JQ={"小寒","大寒","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"};
private static int[] JQData={0,21208,43467,63836,85337,107014,128867,150921,173149,195551,218072,240693,263343,285989,308563,331033,353350,375494,397447,419210,440795,462224,483532,504758};
staticChinaDate()
{
//公历节日
gHoliday.Add("0101","元旦");
gHoliday.Add("0214","情人节");
gHoliday.Add("0305","雷锋日");
gHoliday.Add("0308","妇女节");
gHoliday.Add("0312","植树节");
gHoliday.Add("0315","消费者权益日");
gHoliday.Add("0401","愚人节");
gHoliday.Add("0501","劳动节");
gHoliday.Add("0504","青年节");
gHoliday.Add("0601","儿童节");
gHoliday.Add("0701","建党节");
gHoliday.Add("0801","建军节");
gHoliday.Add("0910","教师节");
gHoliday.Add("1001","国庆节");
gHoliday.Add("1224","平安夜");
gHoliday.Add("1225","圣诞节");
//农历节日
nHoliday.Add("0101","春节");
nHoliday.Add("0115","元宵节");
nHoliday.Add("0505","端午节");
nHoliday.Add("0815","中秋节");
nHoliday.Add("0909","重阳节");
nHoliday.Add("1208","腊八节");
}
///
/// 获取农历
///
public static string GetChinaDate(DateTimedt)
{
if(dt>china.MaxSupportedDateTime||dt
{
//日期范围：1901 年 2 月 19 日 - 2101 年 1 月 28 日
throw new Exception(string.Format("日期超出范围！必须在{0}到{1}之间！",china.MinSupportedDateTime.ToString("yyyy-MM-dd"),china.MaxSupportedDateTime.ToString("yyyy-MM-dd")));
}
stringstr=string.Format("{0} {1}{2}",GetYear(dt),GetMonth(dt),GetDay(dt));
string strJQ=GetSolarTerm(dt);
if(strJQ!="")
{
str+=" ("+strJQ+")";
}
string strHoliday=GetHoliday(dt);
if(strHoliday!="")
{
str+=" "+strHoliday;
}
string strChinaHoliday=GetChinaHoliday(dt);
if(strChinaHoliday!="")
{
str+=" "+strChinaHoliday;
}
returnstr;
}
///
/// 获取农历年份
///
///
///
public static string GetYear(DateTimedt)
{
int yearIndex=china.GetSexagenaryYear(dt);
string yearTG=" 甲乙丙丁戊己庚辛壬癸";
string yearDZ=" 子丑寅卯辰巳午未申酉戌亥";
string yearSX=" 鼠牛虎兔龙蛇马羊猴鸡狗猪";
int year=china.GetYear(dt);
int yTG=china.GetCelestialStem(yearIndex);
int yDZ=china.GetTerrestrialBranch(yearIndex);
string str=string.Format("[{1}]{2}{3}{0}",year,yearSX[yDZ],yearTG[yTG],yearDZ[yDZ]);
return str;
}
///
/// 获取农历月份
///
public static string GetMonth(DateTime dt)
{
int year=china.GetYear(dt);
int iMonth=china.GetMonth(dt);
int leapMonth=china.GetLeapMonth(year);
bool isLeapMonth=iMonth==leapMonth;
if(leapMonth!=0&&iMonth>=leapMonth)
{
iMonth--;
}
string szText="正二三四五六七八九十";
string strMonth=isLeapMonth?"闰":"";
if(iMonth<=10)
{
strMonth+=szText.Substring(iMonth-1,1);
}
else if(iMonth==11)
{
strMonth+="十一";
}
else
{
strMonth+="腊";
}
return strMonth+"月";
}
///
/// 获取农历日期
///
///
///
public static stringGetDay(DateTimedt)
{
inti Day=china.GetDayOfMonth(dt);
string szText1="初十廿三";
string szText2="一二三四五六七八九十";
string strDay;
if(iDay==20)
{
strDay="二十";
}
else if(iDay==30)
{
strDay="三十";
}
else
{
strDay=szText1.Substring((iDay-1)/10,1);
strDay=strDay+szText2.Substring((iDay-1)%10,1);
}
returnstrDay;
}
///
/// 获取节气
///
///
///
public static string GetSolarTerm(DateTimedt)
{
DateTime dtBase=new DateTime(1900,1,6,2,5,0);
DateTime dtNew;
double num;
int y;
string strReturn="";
y=dt.Year;
for(int i=1;i<=24;i++)
{
num=525948.76*(y-1900)+JQData[i-1];
dtNew=dtBase.AddMinutes(num);
if(dtNew.DayOfYear==dt.DayOfYear)
{
strReturn=JQ[i-1];
}
}
return strReturn;
}
///
/// 获取公历节日
///
///
///
public static string GetHoliday(DateTimedt)
{
string strReturn="";
object g=gHoliday[dt.Month.ToString("00")+dt.Day.ToString("00")];
if(g!=null)
{
strReturn=g.ToString();
}
return strReturn;
}
///
/// 获取农历节日
///
///
///
public static string GetChinaHoliday(DateTimedt)
{
string strReturn="";
int year=china.GetYear(dt);
int iMonth=china.GetMonth(dt);
int leapMonth=china.GetLeapMonth(year);
int iDay=china.GetDayOfMonth(dt);
if(china.GetDayOfYear(dt)==china.GetDaysInYear(year))
{
strReturn="除夕";
}
else if(leapMonth!=iMonth)
{
if(leapMonth!=0&&iMonth>=leapMonth)
{
iMonth--;
}
object n=nHoliday[iMonth.ToString("00")+iDay.ToString("00")];
if(n!=null)
{
if(strReturn=="")
{
strReturn=n.ToString();
}
else
{
strReturn+=" "+n.ToString();
}
}
}
return strReturn;
}
#endregion
#region阴历-阳历-转换
///
/// 阴历转为阳历
///
///指定的年份
public static DateTime GetLunarYearDate(DateTimedt)
{
int cnYear=china.GetYear(dt);
int cnMonth=china.GetMonth(dt);
int num1=0;
int num2=china.IsLeapYear(cnYear)?13:12;
while(num2>=cnMonth)
{
num1+=china.GetDaysInMonth(cnYear,num2--);
}
num1=num1-china.GetDayOfMonth(dt)+1;
return dt.AddDays(num1);
}
///
/// 阳历转为阴历
///
///公历日期
///农历的日期
public static DateTime GetSunYearDate(DateTimedt)
{
int year=china.GetYear(dt);
int iMonth=china.GetMonth(dt);
int iDay=china.GetDayOfMonth(dt);
int leapMonth=china.GetLeapMonth(year);
bool isLeapMonth=iMonth==leapMonth;
if(leapMonth!=0&&iMonth>=leapMonth)
{
iMonth--;
}
string str=string.Format("{0}-{1}-{2}",year,iMonth,iDay);
DateTime dtNew=DateTime.Now;
try
{
dtNew=Convert.ToDateTime(str);//防止出现2月份时，会出现超过时间，出现“2015-02-30”这种错误日期
}
catch
{
}
return dtNew;
}
#endregion
}