C#、Asp.Net 农历与阴历之间相互转化工具类

来源：互联网发布：js 严格模式 eval 编辑：程序博客网时间：2024/04/28 18:13
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C#、Asp.Net 实现农历与阴历之间相互转化工具类/// <summary>/// 农历与阴历之间相互转化工具类/// </summary>public class ChinaDate{    #region 农历信息获取    private static ChineseLunisolarCalendar china = new ChineseLunisolarCalendar();    private static 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 };    static ChinaDate()    {        //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");    }    /// <summary>    /// 获取农历    /// </summary>    /// <param name="dt"></param>    /// <returns></returns>    public static string GetChinaDate(DateTime dt)    {        if (dt > china.MaxSupportedDateTime || dt < china.MinSupportedDateTime)        {            //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")));        }        string str = 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;        }        return str;    }    /// <summary>    /// 获取农历年份    /// </summary>    /// <param name="dt"></param>    /// <returns></returns>    public static string GetYear(DateTime dt)    {        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;    }    /// <summary>    /// 获取农历月份    /// </summary>    /// <param name="dt"></param>    /// <returns></returns>    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";    }    /// <summary>    /// 获取农历日期    /// </summary>    /// <param name="dt"></param>    /// <returns></returns>    public static string GetDay(DateTime dt)    {        int iDay = 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);        }        return strDay;    }    /// <summary>    /// 获取节气    /// </summary>    /// <param name="dt"></param>    /// <returns></returns>    public static string GetSolarTerm(DateTime dt)    {        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;    }    /// <summary>    /// 获取公历节日    /// </summary>    /// <param name="dt"></param>    /// <returns></returns>    public static string GetHoliday(DateTime dt)    {        string strReturn = "";        object g = gHoliday[dt.Month.ToString("00") + dt.Day.ToString("00")];        if (g != null)        {            strReturn = g.ToString();        }        return strReturn;    }    /// <summary>    /// 获取农历节日    /// </summary>    /// <param name="dt"></param>    /// <returns></returns>    public static string GetChinaHoliday(DateTime dt)    {        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    /// <summary>    /// 阴历转为阳历    /// </summary>    /// <param name="year">指定的年份</param>    public static DateTime GetLunarYearDate(DateTime dt)    {        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);    }    /// <summary>    /// 阳历转为阴历    /// </summary>    /// <param name="dt">公历日期</param>    /// <returns>农历的日期</returns>    public static DateTime GetSunYearDate(DateTime dt)    {        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}来源：威客百科 本文地址：baike.renwuyi.com/2015-04/9181.html 转载请注明出处。
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