常用工具处理类

//常用日期处理帮助类var DateUtil = function () {    //标准化时间格式字段串为"YYYY-MM-DD HH:mm:ss"    function StandardFormate(fmt) {        if (fmt) {            fmt = fmt.trim();            var fmt_res = "";            for (i = 0; i < fmt.length; i++) {                var curVal = fmt.charAt(i);                if (curVal == "y" || curVal == "Y") {                    fmt_res += "Y";                }                else if (curVal == "M" || curVal == "m") {                    if (fmt.indexOf(" ") > 0) {                        if (i < fmt.indexOf(" ")) {                            fmt_res += "M";                        }                        else if (i > fmt.indexOf(" ")) {                            fmt_res += "m";                        }                    }                    else {                        if (fmt.indexOf(":") < 0) {                            fmt_res += "M";                        }                        else {                            fmt_res += "m";                        }                    }                }                else if (curVal == "d" || curVal == "D") {                    fmt_res += "D";                }                else if (curVal == "h" || curVal == "H") {                    fmt_res += "H";                }                else if (curVal == "S" || curVal == "s") {                    fmt_res += "s";                }                else if (curVal == "-" || curVal == "/") {                    fmt_res += "-";                }                else if (curVal == " " || curVal == "  ") {                    fmt_res += " ";                }                else if (curVal == ":") {                    fmt_res += ":";                }            }            return fmt_res;        }        else {            return "YYYY-MM-DD HH:mm:ss";        }    }    // 重写toString方法，将时间转换为Y-m-d H:i:s格式      Date.prototype.toString = function (fmt) {        if (fmt) {            return moment(this).format(StandardFormate(fmt));        }        else {            return this.getFullYear() + "-" + (this.getMonth() + 1) + "-" + this.getDate() + " " + this.getHours() + ":" + this.getMinutes() + ":" + this.getSeconds();        }    }    //格式化时间字符串      Date.prototype.Format = function (fmt) {        return moment(this).format(StandardFormate(fmt));    }    //在当前时间上添加年数      Date.prototype.addYear = function (years) {        var cyear = this.getFullYear();        cyear += years;        this.setYear(cyear);        return this;    }    //在当前时间上添加天数      Date.prototype.addDay = function (days) {        var cd = this.getDate();        cd += days;        this.setDate(cd);        return this;    }    //在当前时间上添加月数      Date.prototype.addMonth = function (months) {        var cm = this.getMonth();        cm += months;        this.setMonth(cm);        return this;    }    //去除字符串空格    String.prototype.trim = function () {        return this.replace(/(^\s*)|(\s*$)/g, "");    }    //字符串生成日期指定格式日期："2016-05-05 16:23:20".dateFormat("YYYY-MM-DD HH:mm:ss")    String.prototype.dateFormat = function (format) {        return moment(this.toString()).format(StandardFormate(format));    }    this.getCurrentDate = function () {        return new Date();    };    this.getCurrentWeek = function () {        //起止日期数组          var startStop = new Array();        //获取当前时间          var currentDate = this.getCurrentDate();        //返回date是一周中的某一天          var week = currentDate.getDay();        //返回date是一个月中的某一天          var month = currentDate.getDate();        //一天的毫秒数          var millisecond = 1000 * 60 * 60 * 24;        //减去的天数          var minusDay = week != 0 ? week - 1 : 6;        //alert(minusDay);          //本周 周一          var monday = new Date(currentDate.getTime() - (minusDay * millisecond));        //本周 周日          var sunday = new Date(monday.getTime() + (6 * millisecond));        //添加本周时间          startStop.push(monday); //本周起始时间          //添加本周最后一天时间          startStop.push(sunday); //本周终止时间          //返回          return startStop;    };    this.getCurrentMonth = function () {        //起止日期数组          var startStop = new Array();        //获取当前时间          var currentDate = this.getCurrentDate();        //获得当前月份0-11          var currentMonth = currentDate.getMonth();        //获得当前年份4位年          var currentYear = currentDate.getFullYear();        //求出本月第一天          var firstDay = new Date(currentYear, currentMonth, 1);        //当为12月的时候年份需要加1          //月份需要更新为0 也就是下一年的第一个月          if (currentMonth == 11) {            currentYear++;            currentMonth = 0; //就为          } else {            //否则只是月份增加,以便求的下一月的第一天              currentMonth++;        }        //一天的毫秒数          var millisecond = 1000 * 60 * 60 * 24;        //下月的第一天          var nextMonthDayOne = new Date(currentYear, currentMonth, 1);        //求出上月的最后一天          var lastDay = new Date(nextMonthDayOne.getTime() - millisecond);        //添加至数组中返回          startStop.push(firstDay);        startStop.push(lastDay);        //返回          return startStop;    };    this.getQuarterSeasonStartMonth = function (month) {        var quarterMonthStart = 0;        var spring = 0; //春          var summer = 3; //夏          var fall = 6;   //秋          var winter = 9; //冬          //月份从0-11          if (month < 3) {            return spring;        }        if (month < 6) {            return summer;        }        if (month < 9) {            return fall;        }        return winter;    };    this.getMonthDays = function (year, month) {        //本月第一天 1-31          var relativeDate = new Date(year, month, 1);        //获得当前月份0-11          var relativeMonth = relativeDate.getMonth();        //获得当前年份4位年          var relativeYear = relativeDate.getFullYear();        //当为12月的时候年份需要加1          //月份需要更新为0 也就是下一年的第一个月          if (relativeMonth == 11) {            relativeYear++;            relativeMonth = 0;        } else {            //否则只是月份增加,以便求的下一月的第一天              relativeMonth++;        }        //一天的毫秒数          var millisecond = 1000 * 60 * 60 * 24;        //下月的第一天          var nextMonthDayOne = new Date(relativeYear, relativeMonth, 1);        //返回得到上月的最后一天,也就是本月总天数          return new Date(nextMonthDayOne.getTime() - millisecond).getDate();    };    this.getCurrentSeason = function () {        //起止日期数组          var startStop = new Array();        //获取当前时间          var currentDate = this.getCurrentDate();        //获得当前月份0-11          var currentMonth = currentDate.getMonth();        //获得当前年份4位年          var currentYear = currentDate.getFullYear();        //获得本季度开始月份          var quarterSeasonStartMonth = this.getQuarterSeasonStartMonth(currentMonth);        //获得本季度结束月份          var quarterSeasonEndMonth = quarterSeasonStartMonth + 2;        //获得本季度开始的日期          var quarterSeasonStartDate = new Date(currentYear, quarterSeasonStartMonth, 1);        //获得本季度结束的日期          var quarterSeasonEndDate = new Date(currentYear, quarterSeasonEndMonth, this.getMonthDays(currentYear, quarterSeasonEndMonth));        //加入数组返回          startStop.push(quarterSeasonStartDate);        startStop.push(quarterSeasonEndDate);        //返回          return startStop;    };    this.getCurrentYear = function () {        //起止日期数组          var startStop = new Array();        //获取当前时间          var currentDate = this.getCurrentDate();        //获得当前年份4位年          var currentYear = currentDate.getFullYear();        //本年第一天          var currentYearFirstDate = new Date(currentYear, 0, 1);        //本年最后一天          var currentYearLastDate = new Date(currentYear, 11, 31);        //添加至数组          startStop.push(currentYearFirstDate);        startStop.push(currentYearLastDate);        //返回          return startStop;    };    this.getPriorMonthFirstDay = function (year, month) {        //年份为0代表,是本年的第一月,所以不能减          if (month == 0) {            month = 11; //月份为上年的最后月份              year--; //年份减1              return new Date(year, month, 1);        }        //否则,只减去月份          month--;        return new Date(year, month, 1); ;    };    this.getPreviousYear = function () {        //起止日期数组          var startStop = new Array();        //获取当前时间          var currentDate = this.getCurrentDate();        //获得当前年份4位年          var currentYear = currentDate.getFullYear();        currentYear--;        var priorYearFirstDay = new Date(currentYear, 0, 1);        var priorYearLastDay = new Date(currentYear, 11, 1);        //添加至数组          startStop.push(priorYearFirstDay);        startStop.push(priorYearLastDay);        return startStop;    };    //上期日    this.getPriorDay = function (date) {        var _date = createDate(date);        if (_date) {            var yesterday_milliseconds = _date.getTime() - 1000 * 60 * 60 * 24;            var yesterday = new Date();            yesterday.setTime(yesterday_milliseconds);            var strYear = yesterday.getFullYear();            var strDay = yesterday.getDate();            var strMonth = yesterday.getMonth() + 1;            var strHour = yesterday.getHours();            var strMinutes = yesterday.getMinutes();            var strSec = yesterday.getSeconds();            if (strMonth < 10) {                strMonth = "0" + strMonth;            }            datastr = strYear + "-" + strMonth + "-" + strDay;            if (strHour) {                datastr += " " + strHour            }            if (strHour && strMinutes) {                datastr += ":" + strMinutes            }            if (strHour && strMinutes && strSec) {                datastr += ":" + strSec            }            return datastr;        }        else {            return "";        }    }    //上期周    this.getPreviousWeek = function (date) {        var _date = (typeof date == "object" && date.getFullYear ? date : createDate(date));        //起止日期数组          var startStop = new Array();        //返回date是一周中的某一天          var week = _date.getDay();        //返回date是一个月中的某一天          var month = _date.getDate();        //一天的毫秒数          var millisecond = 1000 * 60 * 60 * 24;        //减去的天数          var minusDay = week != 0 ? week - 1 : 6;        //获得当前周的第一天          var currentWeekDayOne = new Date(_date.getTime() - (millisecond * minusDay));        //上周最后一天即本周开始的前一天          var priorWeekLastDay = new Date(currentWeekDayOne.getTime() - millisecond);        //上周的第一天          var priorWeekFirstDay = new Date(priorWeekLastDay.getTime() - (millisecond * 6));        //添加至数组          startStop.push(priorWeekFirstDay);        startStop.push(priorWeekLastDay);        return startStop;    };    //上期月    this.getPreviousMonth = function (date) {        var _date = (typeof date == "object" && date.getFullYear ? date : createDate(date));        //起止日期数组          var startStop = new Array();        //获得当前月份0-11          var currentMonth = _date.getMonth();        //获得当前年份4位年          var currentYear = _date.getFullYear();        //获得上一个月的第一天          var priorMonthFirstDay = this.getPriorMonthFirstDay(currentYear, currentMonth);        //获得上一月的最后一天          var priorMonthLastDay = new Date(priorMonthFirstDay.getFullYear(), priorMonthFirstDay.getMonth(), this.getMonthDays(priorMonthFirstDay.getFullYear(), priorMonthFirstDay.getMonth()));        //添加至数组          startStop.push(priorMonthFirstDay);        startStop.push(priorMonthLastDay);        //返回          return startStop;    };    //上期季    this.getPreviousSeason = function (date) {        var _date = (typeof date == "object" && date.getFullYear ? date : createDate(date));        //起止日期数组          var startStop = new Array();        //获得当前月份0-11          var currentMonth = _date.getMonth();        //获得当前年份4位年          var currentYear = _date.getFullYear();        //上季度的第一天          var priorSeasonFirstDay = this.getPriorSeasonFirstDay(currentYear, currentMonth);        //上季度的最后一天          var priorSeasonLastDay = new Date(priorSeasonFirstDay.getFullYear(), priorSeasonFirstDay.getMonth() + 2, this.getMonthDays(priorSeasonFirstDay.getFullYear(), priorSeasonFirstDay.getMonth() + 2));        //添加至数组          startStop.push(priorSeasonFirstDay);        startStop.push(priorSeasonLastDay);        return startStop;    };    //判断闰年,是闰年则返回true否则返回false    this.isLeapYear = function (year) {        var pYear = year;        if (!isNaN(parseInt(pYear))) {            if ((pYear % 4 == 0 && pYear % 100 != 0) || (pYear % 100 == 0 && pYear % 400 == 0)) {                return true;            } else {                return false;            }        } else {            return false;        }    }    //返回标准格式日期的各个组成部分    this.getTimeStr = function (date) {        //日期自动补零        function ModifyForm(time) {            if (time < 10) {                return "0" + time;            }            return time;        };        if (date) {            var resStr = "";            var sDay = date.getDate(),                sMonth = date.getMonth() + 1,                sYear = date.getFullYear(),                sHour = date.getHours(),                sMinutes = date.getMinutes(),                sSec = date.getSeconds();            if (sYear) {                resStr += (sYear + "");            }            if (sYear && sMonth) {                resStr += ("-" + ModifyForm(sMonth));            }            if (sYear && sMonth && sDay) {                resStr += ("-" + ModifyForm(sDay));            }            if (sYear && sMonth && sDay && sHour) {                resStr += (" " + ModifyForm(sHour));            }            if (sYear && sMonth && sDay && sHour && sMinutes) {                resStr += (":" + ModifyForm(sMinutes));            }            if (sYear && sMonth && sDay && sHour && sMinutes && sSec) {                resStr += (":" + ModifyForm(sSec));            }            return resStr;        }        else {            return "";        }    }    //增加天数 date为时间格式字符串，days为增加天数（为负数时则为减）    this.addOrSubDays = function (date, days) {        if (!isNaN(days)) {            var a = (typeof date == "object" && date.getFullYear ? date : createDate(date));            a = a.valueOf()            a = a + days * 24 * 60 * 60 * 1000            a = new Date(a)            return getTimeStr(a);        }    }    //获取指定月份的最后一天    this.getMonthLastDay = function (date) {        date = (typeof date == "object" && date.getFullYear ? (getTimeStr(date)) : date);        var y = date.substr(0, 4);        var m = date.substr(5, 2);        var nextMonthDay = new Date(y, m, 1);        var nowMonthLastDay = new Date(nextMonthDay.getTime() - 24 * 60 * 60 * 1000);        return getTimeStr(nowMonthLastDay);    };    //相差天数    this.dateDiff = function (date1, date2) {        //字符串转成Time(dateDiff)所需方法        function stringToTime(string) {            var f = string.split(' ', 2);            var d = (f[0] ? f[0] : '').split('-', 3);            var t = (f[1] ? f[1] : '').split(':', 3);            return (new Date(            parseInt(d[0], 10) || null,            (parseInt(d[1], 10) || 1) - 1,            parseInt(d[2], 10) || null,            parseInt(t[0], 10) || null,            parseInt(t[1], 10) || null,            parseInt(t[2], 10) || null            )).getTime();        }        var type1 = typeof date1, type2 = typeof date2;        if (type1 == 'string')            date1 = stringToTime(date1);        else if (date1 && date1.getTime)            date1 = date1.getTime();        if (type2 == 'string')            date2 = stringToTime(date2);        else if (date2 && date2.getTime)            date2 = date2.getTime();        return (date2 - date1) / (1000 * 60 * 60 * 24); //结果是天数    }    //返回一个date日期    this.createDate = function (date) {        //  var datePart = null;        //采用标准的new Date对象的方式        if (typeof date == "object" && date.getFullYear) {            return date;        }        else {            date = date.trim();            date = date.replace("/", "-");            var datePart = [];            if (date.indexOf(" ") > -1 && date.indexOf(":") > -1) {                var TimeArr_1 = date.split(" ");                //遍历处理日期部分和时间部分                for (var i = 0; i < TimeArr_1.length; i++) {                    if (TimeArr_1[i].indexOf("-") > -1) {                        var a = TimeArr_1[i].split("-");                        for (var j = 0; j < a.length; j++) {                            if (j == 1) {                                datePart.push(parseInt(a[j]) - 1);                            }                            else {                                datePart.push(a[j]);                            }                        }                    }                    else if (TimeArr_1[i].indexOf(":") > -1) {                        var b = TimeArr_1[i].split(":");                        for (var h = 0; h < b.length; h++) {                            datePart.push(b[h]);                        }                    }                }            }            else {                var TimeArr_2 = date.split("-");                for (var k = 0; k < TimeArr_2.length; k++) {                    if (k == 1) {                        datePart.push(parseInt(TimeArr_2[k]) - 1);                    }                    else {                        datePart.push(TimeArr_2[k]);                    }                }            }        }        //根据日期数组的长度实例化时间变量        if (datePart && datePart.length && datePart.length > 0) {            switch (datePart.length) {                case 6:                    return new Date(datePart[0], datePart[1], datePart[2], datePart[3], datePart[4], datePart[5]);                    break;                case 5:                    return new Date(datePart[0], datePart[1], datePart[2], datePart[3], datePart[4]);                    break;                case 4:                    return new Date(datePart[0], datePart[1], datePart[2], datePart[3]);                    break;                case 3:                    return new Date(datePart[0], datePart[1], datePart[2]);                    break;                case 2:                    return new Date(datePart[0], datePart[1]);                    break;                case 1:                    return new Date(datePart[0]);                    break;            }        }    }    return {        getCurrentDate: function () { return getCurrentDate(); },        getCurrentWeek: function () { return getCurrentWeek(); },        getCurrentMonth: function () { return getCurrentMonth(); },        getQuarterSeasonStartMonth: function (month) { return getQuarterSeasonStartMonth(month); },        getMonthDays: function (year, month) { return getMonthDays(year, month); },        getCurrentSeason: function () { return getCurrentSeason(); },        getCurrentYear: function () { return getCurrentYear(); },        getPriorMonthFirstDay: function (year, month) { return getPriorMonthFirstDay(year, month); },        getPreviousMonth: function (date) { return getPreviousMonth(date); },        getPreviousWeek: function (date) { return getPreviousWeek(date); },        getPriorSeasonFirstDay: function (year, month) { return getPriorSeasonFirstDay(year, month); },        getPreviousSeason: function (date) { return getPreviousSeason(date); },        getPreviousYear: function (date) { return getPreviousYear(date); },        getTimeStr: function (date) { return getTimeStr(date); },        getPriorDay: function (date) { return getPriorDay(date); },        isLeapYear: function (year) { return isLeapYear(year); },        addOrSubDays: function (date, days) { return addOrSubDays(date, days); },        getMonthLastDay: function (date) { return getMonthLastDay(date); },        dateDiff: function (date1, date2) { return dateDiff(date1, date2); },        createDate: function (date) { return createDate(date); }    };} ();