日期常用方法

var dateControl = (function () {
    /**
     * 生成单个时间控件
     * a:时间控件input的document对象
     * b:保存获取到具体时间的document对象
     */
    this.createDateControl = function (a, b, callback) {
        a.daterangepicker({
            singleDatePicker: true,
            startDate: moment().subtract(0, 'days'),
            autoUpdateInput: true,
            showDropdowns: true,
            locale: {
                format: "YYYY-MM-DD",
                daysOfWeek: ["日", "一", "二", "三", "四", "五", "六"],
                monthNames: ["一月", "二月", "三月", "四月", "五月", "六月", "七月", "八月", "九月", "十月", "十一月", "十二月"]
            }
        }).on('cancel.daterangepicker', function (ev, picker) {
            a.val("请选择日期");
            b.val("");
            callback();
        }).on('apply.daterangepicker', function (ev, picker) {
            a.val(picker.startDate.format('YYYY-MM-DD'));
            b.val(picker.startDate.format('YYYY-MM-DD'));
            callback();
        });;

    }

    /**
     * 生成区间时间控件
     * a:时间控件input的document对象
     * b:保存获取到开始时间的document对象
     * c:保存获取到结束时间的document对象
     */
    this.doubleDateControl = function (a, b, c, callback) {
        a.daterangepicker({
            autoApply: false,
            autoUpdateInput: false,
            showDropdowns: true,
            alwaysShowCalendars: false,
            locale: {
                format: "YYYY-MM-DD",
                separator: " - ",
                applyLabel: "确认",
                cancelLabel: "清空",
                fromLabel: "开始时间",
                toLabel: "结束时间",
                customRangeLabel: "自定义",
                daysOfWeek: ["日", "一", "二", "三", "四", "五", "六"],
                monthNames: ["一月", "二月", "三月", "四月", "五月", "六月", "七月", "八月", "九月", "十月", "十一月", "十二月"]
            }
        }).on('cancel.daterangepicker', function (ev, picker) {
            resetDate(a, b, c);
            callback();
        }).on('apply.daterangepicker', function (ev, picker) {
            a.val(picker.startDate.format('YYYY-MM-DD') + " 至 " + picker.endDate.format('YYYY-MM-DD'));
            b.val(picker.startDate.format('YYYY-MM-DD'));
            c.val(picker.endDate.format('YYYY-MM-DD'));
            callback();
        });

        function resetDate(a, b, c) {
            var typeEle = $('#date_link_div a.current');
            var type = typeEle.attr("value");
            var startTime = b;
            var endTime = c;

            var today = formatDate(dateRangeUtil.getCurrentDate());
            var week_start = formatDate(dateRangeUtil.getCurrentWeek()[0]);
            var week_end = formatDate(dateRangeUtil.getCurrentWeek()[1]);
            var month_start = formatDate(dateRangeUtil.getCurrentMonth()[0]);
            var month_end = formatDate(dateRangeUtil.getCurrentMonth()[1]);
            var year_start = formatDate(dateRangeUtil.getCurrentYear()[0]);
            var year_end = formatDate(dateRangeUtil.getCurrentYear()[1]);
            var total = "";
            a.val("请选择日期范围");
            if (type == "t") {
                startTime.val(today);
                endTime.val(today);
            } else if (type == "w") {
                startTime.val(week_start);
                endTime.val(week_end);
            } else if (type == "m") {
                startTime.val(month_start);
                endTime.val(month_end);
            } else if (type == "y") {
                startTime.val(year_start);
                endTime.val(year_end);
            }
        }
    }
    return this;
})();

/**

 * 日期范围工具类
 */
var dateRangeUtil = (function () {
    /***
     * 获得当前时间
     */
    this.getCurrentDate = function () {
        return new Date();
    };
    /***
     * 获得昨天时间
     */
    this.getYesterdayDate = function () {
        var yesterday = new Date();
        yesterday.setDate(yesterday.getDate() - 1);
        return yesterday;
    };

    /***
     * 获得本周起止时间
     */
    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;
    };

    /***
     * 获得本月的起止时间
     */
    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;
    };


    /**
     * 得到本季度开始的月份
     * aram month 需要计算的月份
     ***/
    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;
    };


    /**
     * 获得该月的天数
     * param year年份
     * param month月份
     * */
    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();
    };


    /**
     * 获得本季度的起止日期
     */
    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;
    };


    /***
     * 得到本年的起止日期
     * 
     */
    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;
    };


    /**
     * 返回上一个月的第一天Date类型
     * param year 年
     * param month 月
     **/
    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);;
    };


    /**
     * 获得上一月的起止日期
     * ***/
    this.getPreviousMonth = 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;
    };




    /**
     * 获得上一周的起止日期
     * **/
    this.getPreviousWeek = 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;
        //获得当前周的第一天  
        var currentWeekDayOne = new Date(currentDate.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;
    };


    /**
     * 得到上季度的起始日期
     * year 这个年应该是运算后得到的当前本季度的年份
     * month 这个应该是运算后得到的当前季度的开始月份
     * */
    this.getPriorSeasonFirstDay = function (year, 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  
        switch (month) { //季度的其实月份  
            case spring:
                //如果是第一季度则应该到去年的冬季  
                year--;
                month = winter;
                break;
            case summer:
                month = spring;
                break;
            case fall:
                month = summer;
                break;
            case winter:
                month = fall;
                break;


        };


        return new Date(year, month, 1);
    };


    /**
     * 得到上季度的起止日期
     * **/
    this.getPreviousSeason = 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();
        //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;
    };


    /**
     * 得到去年的起止日期
     * **/
    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;
    };

    /**
     * 获取指定的日期
     */
    this.getSpecificData = function (aa) {
        var date1 = new Date(),
            time1 = date1.getFullYear() + "-" + (date1.getMonth() + 1) + "-" + date1.getDate(); //time1表示当前时间
        var date2 = new Date(date1);
        date2.setDate(date1.getDate() + aa);
        return date2;
    }

    return this;
})();

function formatDate(date) {
    var myyear = date.getFullYear();
    var mymonth = date.getMonth() + 1;
    var myweekday = date.getDate();
    if (mymonth < 10) {
        mymonth = "0" + mymonth;
    }
    if (myweekday < 10) {
        myweekday = "0" + myweekday;
    }
    return (myyear + "-" + mymonth + "-" + myweekday);
}



function getDateHours() {  //  获取当前时间往后多少个小时方法
    var time = ""
    var oneDay = ""
    var date = ""
    date = new Date();
    time = date.getTime(); //当前的毫秒数
    oneDay = 1000 * 60 * 60  // 1小时多少毫秒
    date.setTime(time + oneDay * 2); // 2是往后的多少个小时
    myGetDate(date)
}
function  myGetDate(d) { // 格式化时间  YYYY-MM-DD HH:mm
    return `${d.getFullYear()}-${d.getMonth() + 1}-${d.getDate()}  ${d.getHours()}:${d.getMinutes()}:${d.getSeconds()}`;
  }