js获取农历

插件地址：

npm:https://www.npmjs.com/package/solarluna

js获取农历

第一种方法

/**获取农历 start*/
function getLunar(){

	var nyear;
	var nmonth;
	var nday = -1;
	var nwday;
	var nhrs;
	var nmin;
	var nsec;

	var lmonth, lday, lleap; //农历参数
	
	function Draw() {
	    NewTick();

	    //显示时间
	    var s = nyear + '年' + nmonth + '月' + nday + '日 ' + '星期' + cweekday(nwday) + ' ' + shapetime(nhrs, nmin, nsec);
	    s += " 农历" + lmonth + "月" + lday; //农历
	    var lunar_month_day=lmonth + "月" + lday;
	    //需要展示在页面地方
	    $(".xxxx").text(lunar_month_day);
	}
	
	
	function NewTick() {
	    noww = new Date();
	    if (noww.getDate() != nday) {
	        nyear = noww.getFullYear();
	        nmonth = noww.getMonth() + 1;
	        nwday = noww.getDay();
	        nday = noww.getDate();

	        getlunar(); //获取农历
	    }
	    nhrs = noww.getHours();
	    nmin = noww.getMinutes();
	    nsec = noww.getSeconds();
	}


	//辅助函数
	var hzWeek = new Array("日", "一", "二", "三", "四", "五", "六", "日");
	function cweekday(wday) {
	    return hzWeek[wday];
	}
	function shapetime(vhrs, vmin, vsec) {
	    if (vsec <= 9) vsec = "0" + vsec;
	    if (vmin <= 9) vmin = "0" + vmin;
	    if (vhrs <= 9) vhrs = "0" + vhrs;
	    return vhrs + ":" + vmin + ":" + vsec
	}

	//农历函数开始
	var lunarInfo = new Array(0x04bd8, 0x04ae0, 0x0a570, 0x054d5, 0x0d260, 0x0d950, 0x16554, 0x056a0, 0x09ad0, 0x055d2, 0x04ae0, 0x0a5b6, 0x0a4d0, 0x0d250, 0x1d255, 0x0b540, 0x0d6a0, 0x0ada2, 0x095b0, 0x14977, 0x04970, 0x0a4b0, 0x0b4b5, 0x06a50, 0x06d40, 0x1ab54, 0x02b60, 0x09570, 0x052f2, 0x04970, 0x06566, 0x0d4a0, 0x0ea50, 0x06e95, 0x05ad0, 0x02b60, 0x186e3, 0x092e0, 0x1c8d7, 0x0c950, 0x0d4a0, 0x1d8a6, 0x0b550, 0x056a0, 0x1a5b4, 0x025d0, 0x092d0, 0x0d2b2, 0x0a950, 0x0b557, 0x06ca0, 0x0b550, 0x15355, 0x04da0, 0x0a5b0, 0x14573, 0x052b0, 0x0a9a8, 0x0e950, 0x06aa0, 0x0aea6, 0x0ab50, 0x04b60, 0x0aae4, 0x0a570, 0x05260, 0x0f263, 0x0d950, 0x05b57, 0x056a0, 0x096d0, 0x04dd5, 0x04ad0, 0x0a4d0, 0x0d4d4, 0x0d250, 0x0d558, 0x0b540, 0x0b6a0, 0x195a6, 0x095b0, 0x049b0, 0x0a974, 0x0a4b0, 0x0b27a, 0x06a50, 0x06d40, 0x0af46, 0x0ab60, 0x09570, 0x04af5, 0x04970, 0x064b0, 0x074a3, 0x0ea50, 0x06b58, 0x05ac0, 0x0ab60, 0x096d5, 0x092e0, //1990
	0x0c960, 0x0d954, 0x0d4a0, 0x0da50, 0x07552, 0x056a0, 0x0abb7, 0x025d0, 0x092d0, 0x0cab5, 0x0a950, 0x0b4a0, 0x0baa4, 0x0ad50, 0x055d9, 0x04ba0, 0x0a5b0, 0x15176, 0x052b0, 0x0a930, 0x07954, 0x06aa0, 0x0ad50, 0x05b52, 0x04b60, 0x0a6e6, 0x0a4e0, 0x0d260, 0x0ea65, 0x0d530, 0x05aa0, 0x076a3, 0x096d0, 0x04bd7, 0x04ad0, 0x0a4d0, 0x1d0b6, 0x0d250, 0x0d520, 0x0dd45, 0x0b5a0, 0x056d0, 0x055b2, 0x049b0, 0x0a577, 0x0a4b0, 0x0aa50, 0x1b255, 0x06d20, 0x0ada0, 0x14b63);
	function lYearDays(y) {
	    var i, sum = 348;
	    for (i = 0x8000; i > 0x8; i >>= 1) sum += (lunarInfo[y - 1900] & i) ? 1 : 0;
	    return (sum + leapDays(y));
	}
	function leapDays(y) {
	    if (leapMonth(y)) return ((lunarInfo[y - 1900] & 0x10000) ? 30 : 29);
	    else return (0);
	}
	function leapMonth(y) {
	    return (lunarInfo[y - 1900] & 0xf);
	}
	function monthDays(y, m) {
	    return ((lunarInfo[y - 1900] & (0x10000 >> m)) ? 30 : 29);
	}
	function Lunar(y, m, d) {
	    var i, leap = 0,
	    temp = 0;
	    var offset = (Date.UTC(y, m, d) - Date.UTC(1900, 0, 31)) / 86400000;
	    for (i = 1900; i < 2050 && offset > 0; i++) {
	        temp = lYearDays(i);
	        offset -= temp;
	    }
	    if (offset < 0) {
	        offset += temp;
	        i--;
	    }
	    this.year = i;
	    leap = leapMonth(i);
	    this.isLeap = false;
	    for (i = 1; i < 13 && offset > 0; i++) {
	        if (leap > 0 && i == (leap + 1) && this.isLeap == false) {--i;
	            this.isLeap = true;
	            temp = leapDays(this.year);
	        } else {
	            temp = monthDays(this.year, i);
	        }
	        if (this.isLeap == true && i == (leap + 1)) this.isLeap = false;
	        offset -= temp;
	    }
	    if (offset == 0 && leap > 0 && i == leap + 1) if (this.isLeap) {
	        this.isLeap = false;
	    } else {
	        this.isLeap = true; --i;
	    }
	    if (offset < 0) {
	        offset += temp; --i;
	    }
	    this.month = i;
	    this.day = offset + 1;
	}
	var nStr1 = new Array('', '一', '二', '三', '四', '五', '六', '七', '八', '九', '十', '十一', '十二');
	var nStr2 = new Array('初', '十', '廿', '卅', '□');
	function GetcDay(d) {
	    var s;
	    switch (d) {
	    case 10:
	        s = '初十';
	        break;
	    case 20:
	        s = '二十';
	        break;
	    case 30:
	        s = '三十';
	        break;
	    default:
	        s = nStr2[Math.floor(d / 10)];
	        s += nStr1[d % 10];
	        break;
	    }
	    return (s);
	}
	function GetcMon(m) {
	    if (m == 1) return '正';
	    else return nStr1[m];
	}
	function getlunar() {
	    var lObj = new Lunar(nyear, nmonth - 1, nday);
	    lmonth = GetcMon(lObj.month);
	    lday = GetcDay(lObj.day);
	    lleap = lObj.isLeap;
	    if (lleap == 1) {
	        lmonth = "闰" + lmonth;
	    }
	}
	//农历函数结束
	Draw();
}
/**获取农历 end*/

第二种方法（不太准确）

getLunar() {
    var that = this
    var CalendarData = new Array(100);
    var madd = new Array(12);
    var tgString = "甲乙丙丁戊己庚辛壬癸";
    var dzString = "子丑寅卯辰巳午未申酉戌亥";
    var numString = "一二三四五六七八九十";
    var monString = "正二三四五六七八九十冬腊";
    var weekString = "日一二三四五六";
    var sx = "鼠牛虎兔龙蛇马羊猴鸡狗猪";
    var cYear, cMonth, cDay, TheDate;
    CalendarData = new Array(0xA4B, 0x5164B, 0x6A5, 0x6D4, 0x415B5, 0x2B6, 0x957, 0x2092F, 0x497, 0x60C96, 0xD4A, 0xEA5, 0x50DA9, 0x5AD, 0x2B6, 0x3126E, 0x92E, 0x7192D, 0xC95, 0xD4A, 0x61B4A, 0xB55, 0x56A, 0x4155B, 0x25D, 0x92D, 0x2192B, 0xA95, 0x71695, 0x6CA, 0xB55, 0x50AB5, 0x4DA, 0xA5B, 0x30A57, 0x52B, 0x8152A, 0xE95, 0x6AA, 0x615AA, 0xAB5, 0x4B6, 0x414AE, 0xA57, 0x526, 0x31D26, 0xD95, 0x70B55, 0x56A, 0x96D, 0x5095D, 0x4AD, 0xA4D, 0x41A4D, 0xD25, 0x81AA5, 0xB54, 0xB6A, 0x612DA, 0x95B, 0x49B, 0x41497, 0xA4B, 0xA164B, 0x6A5, 0x6D4, 0x615B4, 0xAB6, 0x957, 0x5092F, 0x497, 0x64B, 0x30D4A, 0xEA5, 0x80D65, 0x5AC, 0xAB6, 0x5126D, 0x92E, 0xC96, 0x41A95, 0xD4A, 0xDA5, 0x20B55, 0x56A, 0x7155B, 0x25D, 0x92D, 0x5192B, 0xA95, 0xB4A, 0x416AA, 0xAD5, 0x90AB5, 0x4BA, 0xA5B, 0x60A57, 0x52B, 0xA93, 0x40E95);
    madd[0] = 0;
    madd[1] = 31;
    madd[2] = 59;
    madd[3] = 90;
    madd[4] = 120;
    madd[5] = 151;
    madd[6] = 181;
    madd[7] = 212;
    madd[8] = 243;
    madd[9] = 273;
    madd[10] = 304;
    madd[11] = 334;

    function GetBit(m, n) {
        return (m >> n) & 1;
    }

    function e2c() {
        TheDate = (arguments.length != 3) ? new Date() : new Date(arguments[0], arguments[1], arguments[2]);
        console.log(TheDate);


        var total, m, n, k;
        var isEnd = false;
        var tmp = TheDate.getYear();
        if (tmp < 1900) {
            tmp += 1900;
        }
        total = (tmp - 1921) * 365 + Math.floor((tmp - 1921) / 4) + madd[TheDate.getMonth()] + TheDate.getDate() - 38;
        console.log(total);


        if (TheDate.getYear() % 4 == 0 && TheDate.getMonth() > 1) {
            total++;
        }
        for (m = 0;; m++) {
            k = (CalendarData[m] < 0xfff) ? 11 : 12;
            for (n = k; n >= 0; n--) {
                if (total <= 29 + GetBit(CalendarData[m], n)) {
                    isEnd = true;
                    break;
                }
                total = total - 29 - GetBit(CalendarData[m], n);
            }
            if (isEnd) break;
        }
        cYear = 1921 + m;
        cMonth = k - n + 1;
        cDay = total;
        if (k == 12) {
            if (cMonth == Math.floor(CalendarData[m] / 0x10000) + 1) {
                cMonth = 1 - cMonth;
            }
            if (cMonth > Math.floor(CalendarData[m] / 0x10000) + 1) {
                cMonth--;
            }
        }
    }

    function GetcDateString() {
        console.log(
            cYear, cMonth, cDay,
        );

        var tmp = "";
         tmp += tgString.charAt((cYear - 4) % 10);
         tmp += dzString.charAt((cYear - 4) % 12);
         tmp += "(";
         tmp += sx.charAt((cYear - 4) % 12);
         tmp += ")年 ";
        if (cMonth < 1) {
            tmp += "(闰)";
            tmp += monString.charAt(-cMonth - 1);
        } else {
            tmp += monString.charAt(cMonth - 1);
        }
        tmp += "月";
        tmp += (cDay < 11) ? "初" : ((cDay < 20) ? "十" : ((cDay < 30) ? "廿" : "三十"));
        if (cDay % 10 != 0 || cDay == 10) {
            tmp += numString.charAt((cDay - 1) % 10);
        }   
        that.lunar = tmp
        return tmp;


    }

    function GetLunarDay(solarYear, solarMonth, solarDay) {
        console.log(solarYear, solarMonth, solarDay);

        //solarYear = solarYear<1900?(1900+solarYear):solarYear;
        if (solarYear < 1921) {
            console.log(2);

            return "";
        } else {
            console.log(3);

            solarMonth = (parseInt(solarMonth) > 0) ? (solarMonth - 1) : 11;
            e2c(solarYear, solarMonth, solarDay);
            // console.log(solarYear, solarMonth, solarDay);
            return GetcDateString();
        }
    }

    var D = new Date();
    var yy = D.getFullYear();
    var mm = D.getMonth() + 1;
    var dd = D.getDate();
    var ww = D.getDay();
    var ss = parseInt(D.getTime() / 1000);
    if (yy < 100) yy = "19" + yy;
    this.inquireCondition.year = yy
    this.inquireCondition.month = mm
    this.year = [{
            label:(yy-1) + '年',
            value:yy-1
        },{
            label:yy + '年',
            value:yy
        },{
            label:(yy+1) + '年',
            value:yy+1
        },]
    GetLunarDay(yy, mm, dd)
},