C#根据指定日期计算农历

淡淡的烟草味﹌ 2022-09-02 04:26 214阅读 0赞

***在Exit.cs类中***  
引用`using System.Globalization;`

public class Exit
    { 
        ChineseLunisolarCalendar cCalendar = new ChineseLunisolarCalendar();
    
     /// <summary>
        /// 根据公历获取农历日期
        /// </summary>
        /// <param name="datetime">公历日期</param>
        /// <returns></returns>
        public string GetChineseDateTime(DateTime datetime)
        { 
            int lyear = cCalendar.GetYear(datetime);
            int lmonth = cCalendar.GetMonth(datetime);
            int lday = cCalendar.GetDayOfMonth(datetime);
    
            //获取闰月， 0 则表示没有闰月
            int leapMonth = cCalendar.GetLeapMonth(lyear);
    
            bool isleap = false;
    
            if (leapMonth > 0)
            { 
                if (leapMonth == lmonth)
                { 
                    //闰月
                    isleap = true;
                    lmonth--;
                }
                else if (lmonth > leapMonth)
                { 
                    lmonth--;
                }
            }
    
            return string.Concat(GetLunisolarYear(lyear), "年", isleap ? "闰" : string.Empty, GetLunisolarMonth(lmonth), "月", GetLunisolarDay(lday));
        }
        #region 农历年
    
        /// <summary>
        /// 十天干
        /// </summary>
        private static string[] tiangan = {  "甲", "乙", "丙", "丁", "戊", "己", "庚", "辛", "壬", "癸" };
    
        /// <summary>
        /// 十二地支
        /// </summary>
        private static string[] dizhi = {  "子", "丑", "寅", "卯", "辰", "巳", "午", "未", "申", "酉", "戌", "亥" };
    
        /// <summary>
        /// 十二生肖
        /// </summary>
        private static string[] shengxiao = {  "鼠", "牛", "虎", "免", "龙", "蛇", "马", "羊", "猴", "鸡", "狗", "猪" };
    
    
        /// <summary>
        /// 返回农历天干地支年 
        /// </summary>
        /// <param name="year">农历年</param>
        /// <returns></returns>
        public static string GetLunisolarYear(int year)
        { 
            if (year > 3)
            { 
                int tgIndex = (year - 4) % 10;
                int dzIndex = (year - 4) % 12;
    
                return string.Concat(tiangan[tgIndex], dizhi[dzIndex], "[", shengxiao[dzIndex], "]");
    
            }
    
            throw new ArgumentOutOfRangeException("无效的年份!");
        }
    
    
        #endregion
    
    
        #region 农历月
    
        /// <summary>
        /// 农历月
        /// </summary>
        private static string[] months = {  "正", "二", "三", "四", "五", "六", "七", "八", "九", "十", "十一", "腊" };
    
    
        /// <summary>
        /// 返回农历月
        /// </summary>
        /// <param name="month">月份</param>
        /// <returns></returns>
        public static string GetLunisolarMonth(int month)
        { 
            if (month < 13 && month > 0)
            { 
                return months[month - 1];
            }
    
            throw new ArgumentOutOfRangeException("无效的月份!");
        }
    
    
        #endregion
    
    
        #region 农历日
    
        /// <summary>
        /// 
        /// </summary>
        private static string[] days1 = {  "初", "十", "廿", "三" };
    
        /// <summary>
        /// 日
        /// </summary>
        private static string[] days = {  "一", "二", "三", "四", "五", "六", "七", "八", "九", "十" };
    
    
        /// <summary>
        /// 返回农历日
        /// </summary>
        /// <param name="day"></param>
        /// <returns></returns>
        public static string GetLunisolarDay(int day)
        { 
            if (day > 0 && day < 32)
            { 
                if (day != 20 && day != 30)
                { 
                    return string.Concat(days1[(day - 1) / 10], days[(day - 1) % 10]);
                }
                else
                { 
                    return string.Concat(days[(day - 1) / 10], days1[1]);
                }
            }
    
            throw new ArgumentOutOfRangeException("无效的日!");
        }
    
        #endregion
        
    }

***在Exit\_Handler .ashx一般处理程序中***

public class Exit_Handler : IHttpHandler 
    { 
        Exit et = new Exit();
    
        public void ProcessRequest(HttpContext context)
        { 
            var action = context.Request["action"];
            switch (action)
            { 
                case "GetChineseDateTime":
                    GetChineseDateTime(context);
                    break;
                default:
                    break;
         	}
         }
    
    private void GetChineseDateTime(HttpContext context)
        { 
            DateTime datetime = Convert.ToDateTime(context.Request["datetime"]);
            string str = et.GetChineseDateTime(datetime);
            context.Response.Write(str);
        }
    }

**通过ajax访问**

mui.ajax({ 
                            url: 'Exit_Handler.ashx?action=GetChineseDateTime',
                            type: 'post',
                            async: false,
                            data: { 
                                "datetime": '2021-07-29'
                            },
                            success: function (data) { 
                                console.log(date)
                            }
                        })