js实现符合国情的日期插件详解

var daterangepicker = new DateRangePicker();
daterangepicker.init({
 "ele": $("#daterange"),
 "pos":"left",
 "min_date": "1990-01-01",
 "format": "YYYY:MM:DD",
 "updateDateFn":function(){
 console.log(daterangepicker.getDate())
 }
});

function DateRangePicker() {
this.start_picker = null;
this.end_picker = null;
}

DateRangePicker.prototype.init = function(opts) {
 var self = this;
 this.opts = $.extend({
 "pos":"left",//日历位置，靠左或靠右
 "min_date":"1970-01-01",//最小日期
 "updateDateFn":function(){//日期更新回调
 }
 }, opts || {});
 this.createCalendarWrap();
 this.$wrap=this.opts.ele.parents(".ui-datepicker");
 this.start_picker = new DatePicker();//起始日期日历
 this.end_picker = new DatePicker();//结束日期日历
 this.start_picker.init({
 "container": this.$wrap.find(".calendar-container"),
 "min_date":self.opts.min_date,
 "yearOffset": 20,
 "updateCallback": function(){
 self.updateDate();
 }
 });
 this.end_picker.init({
 "container": this.$wrap.find(".calendar-container2"),
 "yearOffset": 20,
 "min_date":self.opts.min_date,
 "updateCallback": function(){
 self.updateDate();
 }
 });
 this.bindEvent();
};

DateRangePicker.prototype.updateDate = function() {
 var self = this;
 var start_date = moment(self.start_picker.currentDate).format(self.opts.format);
 var end_date = moment(self.end_picker.currentDate).format(self.opts.format);
 var start_date_time=new Date(self.start_picker.currentDate).getTime();
 var end_date_time=new Date(self.end_picker.currentDate).getTime();
 if(start_date_time>new Date().getTime()){
 self.start_picker.setCurrentDate(new Date());
 }
 if(end_date_time>new Date().getTime()){
 self.end_picker.setCurrentDate(new Date());
 }
 if(start_date_time>end_date_time){
 self.opts.ele.val(end_date + "~" + start_date);
 }else{
 self.opts.ele.val(start_date + "~" + end_date);
 }
 $(".ui-daterangepicker-range li").removeClass("active");
 self.opts.updateDateFn.call(null,this.getDate());//日期更新后重新获取当前的起始和结束日期
};

//获取起始日期和结束日期段,起始日期若大于结束日期则互换
DateRangePicker.prototype.getDate = function() {
 var start_date=Math.min(this.start_picker.currentDate.getTime(),this.end_picker.currentDate.getTime());
 var end_date=Math.max(this.start_picker.currentDate.getTime(),this.end_picker.currentDate.getTime());
 start_date=moment(start_date).format(this.opts.format);
 end_date=moment(end_date).format(this.opts.format);
 return {
 "start_date":start_date,
 "end_date": end_date
 };
};

//设置起始日期和结束日期
DateRangePicker.prototype.setDate = function(start_date, end_date) {
 this.start_picker.setCurrentDate(new Date(start_date));
 this.end_picker.setCurrentDate(new Date(end_date));
 this.updateDate();
};

//创建日期段容器
DateRangePicker.prototype.createCalendarWrap = function() {
 var $parent=this.opts.ele.parents(".ui-datepicker");
 var h=$parent.height(),w=$parent.width();
 var wrap = '<div class="ui-daterangepicker-wrap" style=":'+h+'px;'+this.opts.pos+':0"><div class="ui-calendar"><p class="calendar-title">开始日期</p><div class="calendar-container"></div></div>' +
 '<div class="ui-calendar"><p class="calendar-title">结束日期</p><div class="calendar-container2"></div></div>' +
 '<div class="ui-daterangepicker-range"><ul>' +
 '<li range-key="今日">今日</li>' +
 '<li range-key="昨日">昨日</li>' +
 '<li range-key="最近7日">最近7日</li>' +
 '<li range-key="最近30日">最近30日</li>' +
 '</ul>' +
 '</div></div>';
 $parent.append(wrap);
};

function DatePicker() {
 this.opts = null;
 this.today = new Date(); //今天
 this.todayDate=this.today.getDate();
 this.currentDate = new Date(); //当前选中日期
}
DatePicker.prototype.init = function(opts) {
 var opts = $.extend({
 'min_date':"1970-01-01",
 "yearOffset": 20//默认往前推20年
 }, opts || {});
 this.opts = opts;
 this.renderCalendar();
 this.bindEvent();
};

DatePicker.prototype.bindEvent = function() {
 var self = this;
 self.opts.container.on("change", ".year-select", function() {
 self.renderSelectedDate();
 });
 //选中月份
 self.opts.container.on("change", ".month-select", function() {
 self.renderSelectedDate();
 });
 //下一月
 self.opts.container.on("click", ".next-btn", function(e) {
 e.sPropagation();
 var cur_date =self.currentDate.setMonth(self.currentDate.getMonth()+1);;
 self.setCurrentDate(cur_date);
 });
 //上一月
 self.opts.container.on("click", ".prev-btn", function(e) {
 e.sPropagation();
 var cur_date = self.currentDate.setMonth(self.currentDate.getMonth()-1);
 self.setCurrentDate(cur_date);
 });
 //选择日历中某一天
 self.opts.container.on("click", ".date-item", function() {
 if (!$(this).hasClass("disabled")) {
 var _day = $(this).attr("date");
 var cur_date = self.currentDate.setDate(_day);
 self.setCurrentDate(cur_date);
 }
 });
};

//临时被选中的日期
DatePicker.prototype.tempActiveDate=(function(){
 var _date=new Date();
 return {
 getDate: function() {
 return _date;
 },
 setDate:function(date){
 _date=new Date(date);
 }
 };
})();

//设置下拉框选中的日期
DatePicker.prototype.renderSelectedDate = function() {
 var _year = this.opts.container.find(".year-select").val();
 var _month = this.opts.container.find(".month-select").val();
 var _day = this.currentDate.getDate();
 var cur_date = new Date(_year, _month, _day);
 this.setCurrentDate(cur_date);
};

//渲染日历框架
DatePicker.prototype.renderCalendar = function() {
 var calendar_header = this.renderHeader();
 var calendar_days = '<table class="calendar-table"><thead><tr><th>日</th><th>一</th><th>二</th><th>三</th><th>四</th><th>五</th><th>六</th></tr></thead>';
 var calendar_body = '<tbody class="calendar_body">';
 for (var i = 0; i < 6; i++) {
 calendar_body += '<tr><td class="date-item"></td><td class="date-item"></td><td class="date-item"></td><td class="date-item"></td><td class="date-item"></td><td class="date-item"></td><td class="date-item"></td></tr>';
 }
 calendar_body + '</tbody></table>';
 this.opts.container.html(calendar_header + calendar_days + calendar_body);
 this.renderCalendarData();
};

//渲染日历头部
DatePicker.prototype.renderHeader = function() {
 var _year = this.today.getFullYear();
 var _month = this.today.getMonth() + 1;
 var current_year = this.currentDate.getFullYear();
 var current_month = this.currentDate.getMonth();
 var monthArr = ["一", "二", "三", "四", "五", "六", "七", "八", "九", "十", "十一", "十二"];
 var min_year=(new Date(this.opts.min_date)).getFullYear();//最小年份
 var start_year=current_year - this.opts.yearOffset>=min_year?current_year - this.opts.yearOffset:min_year;//下拉框起始年份
 var yearSelect="";
 //如果已经是最小日期，不显示上月按钮
 if (current_year <= min_year && current_month <= 0) {
 yearSelect+='<select class="year-select">';
 }else{
 yearSelect = '<span class="prev-btn"><</span> <select class="year-select">';
 }
 for (var i =start_year; i <= _year; i++) {
 if (i == current_year) {
 yearSelect += '<option value="' + i + '" selected>' + i + '</option>';
 } else {
 yearSelect += '<option value="' + i + '">' + i + '</option>';
 }
 }
 yearSelect += '</select>';
 var monthSelect = '<select class="month-select">';
 for (var i = 0; i < 12; i++) {
 var state="";
 if (current_year < _year) {
 if (i == current_month) {
 state="selected";
 }
 }else if (current_year == _year) {
 if(i==current_month){
 state="selected";
 }else{
 state="disabled";
 }
 }else{
 state="disabled";
 }
 monthSelect += '<option value="' + i + '" '+state+'>' + monthArr[i] + '月</option>';
 }
 if (current_year >= _year && current_month+1 >= _month) {
 monthSelect += '</select>';
 }else{
 monthSelect += '</select><span class="next-btn">></span>';
 }
 return "<div class='calendar_header'>" + yearSelect + monthSelect + "</div>";
};

//渲染日历数据
DatePicker.prototype.renderCalendarData = function() {
 var self = this;
 var _year = this.currentDate.getFullYear(); //当前年
 var _month = this.currentDate.getMonth() + 1; //当前月
 var _firstDay = new Date(_year, _month - 1, 1); //当前月第一天
 var tds = this.opts.container.find(".calendar_body td");
 var header = self.renderHeader();
 this.opts.container.find(".calendar_header").html(header);
 tds.each(function(index, item) {
 var _thisDate = new Date(_year, _month - 1, index + 1 - _firstDay.getDay());
 var _thisDay = _thisDate.getDate();
 var _thisMonth = _thisDate.getMonth() + 1;
 var _thisDateTime=_thisDate.getTime();
 $(item).html(_thisDay).attr("date", _thisDay).removeClass("active").removeClass("disabled").removeClass("today");
 //当前月并且当前选中日期高亮
 if (_thisDay == self.tempActiveDate.getDate().getDate() && _thisMonth == _month) {
 $(item).addClass("active");
 }
 //今天日期样式
 if (_thisDay == self.todayDate) {
 $(item).addClass("today");
 }
 //非当前月或者大于今天的日期禁用
 if (_thisMonth !== _month || _thisDateTime>self.today.getTime()) {
 $(item).addClass("disabled").removeClass('active today');
 }
 //如果选择的日期大于今天，则日期重置
 if (_thisDateTime>self.today.getTime() && _thisDay == self.todayDate) {
 $(item).addClass("active");
 self.currentDate = _thisDate;
 }
 });
};
//设置当前日期
DatePicker.prototype.setCurrentDate = function(date) {
 this.tempActiveDate.setDate(date);
 this.currentDate = this.tempActiveDate.getDate();
 this.renderCalendarData();
 if(this.opts.updateCallback){
 this.opts.updateCallback.call(null,this.currentDate);
 }
};

function DatePicker() {
 this.opts = null;
 this.today = new Date(); //今天
 this.todayDate=this.today.getDate();
 this.currentDate = new Date(); //当前选中日期
}
DatePicker.prototype.init = function(opts) {
 var opts = $.extend({
 'min_date':"1970-01-01",
 "yearOffset": 20//默认往前推20年
 }, opts || {});
 this.opts = opts;
 this.renderCalendar();
 this.bindEvent();
};
DatePicker.prototype.bindEvent = function() {
 var self = this;
 self.opts.container.on("change", ".year-select", function() {
 self.renderSelectedDate();
 });
 //选中月份
 self.opts.container.on("change", ".month-select", function() {
 self.renderSelectedDate();
 });
 //下一月
 self.opts.container.on("click", ".next-btn", function(e) {
 e.sPropagation();
 var cur_date =self.currentDate.setMonth(self.currentDate.getMonth()+1);;
 self.setCurrentDate(cur_date);
 });
 //上一月
 self.opts.container.on("click", ".prev-btn", function(e) {
 e.sPropagation();
 var cur_date = self.currentDate.setMonth(self.currentDate.getMonth()-1);
 self.setCurrentDate(cur_date);
 });
 //选择日历中某一天
 self.opts.container.on("click", ".date-item", function() {
 if (!$(this).hasClass("disabled")) {
 var _day = $(this).attr("date");
 var cur_date = self.currentDate.setDate(_day);
 self.setCurrentDate(cur_date);
 }
 });
};
//临时被选中的日期
DatePicker.prototype.tempActiveDate=(function(){
 var _date=new Date();
 return {
 getDate: function() {
 return _date;
 },
 setDate:function(date){
 _date=new Date(date);
 }
 };
})();
//设置下拉框选中的日期
DatePicker.prototype.renderSelectedDate = function() {
 var _year = this.opts.container.find(".year-select").val();
 var _month = this.opts.container.find(".month-select").val();
 var _day = this.currentDate.getDate();
 var cur_date = new Date(_year, _month, _day);
 this.setCurrentDate(cur_date);
};
//渲染日历框架
DatePicker.prototype.renderCalendar = function() {
 var calendar_header = this.renderHeader();
 var calendar_days = '<table class="calendar-table"><thead><tr><th>日</th><th>一</th><th>二</th><th>三</th><th>四</th><th>五</th><th>六</th></tr></thead>';
 var calendar_body = '<tbody class="calendar_body">';
 for (var i = 0; i < 6; i++) {
 calendar_body += '<tr><td class="date-item"></td><td class="date-item"></td><td class="date-item"></td><td class="date-item"></td><td class="date-item"></td><td class="date-item"></td><td class="date-item"></td></tr>';
 }
 calendar_body + '</tbody></table>';
 this.opts.container.html(calendar_header + calendar_days + calendar_body);
 this.renderCalendarData();
};
//渲染日历头部
DatePicker.prototype.renderHeader = function() {
 var _year = this.today.getFullYear();
 var _month = this.today.getMonth() + 1;
 var current_year = this.currentDate.getFullYear();
 var current_month = this.currentDate.getMonth();
 var monthArr = ["一", "二", "三", "四", "五", "六", "七", "八", "九", "十", "十一", "十二"];
 var min_year=(new Date(this.opts.min_date)).getFullYear();//最小年份
 var start_year=current_year - this.opts.yearOffset>=min_year?current_year - this.opts.yearOffset:min_year;//下拉框起始年份
 var yearSelect="";
 //如果已经是最小日期，不显示上月按钮
 if (current_year <= min_year && current_month <= 0) {
 yearSelect+='<select class="year-select">';
 }else{
 yearSelect = '<span class="prev-btn"><</span> <select class="year-select">';
 }
 for (var i =start_year; i <= _year; i++) {
 if (i == current_year) {
 yearSelect += '<option value="' + i + '" selected>' + i + '</option>';
 } else {
 yearSelect += '<option value="' + i + '">' + i + '</option>';
 }
 }
 yearSelect += '</select>';
 var monthSelect = '<select class="month-select">';
 for (var i = 0; i < 12; i++) {
 var state="";
 if (current_year < _year) {
 if (i == current_month) {
 state="selected";
 }
 }else if (current_year == _year) {
 if(i==current_month){
 state="selected";
 }else{
 state="disabled";
 }
 }else{
 state="disabled";
 }
 monthSelect += '<option value="' + i + '" '+state+'>' + monthArr[i] + '月</option>';
 }
 if (current_year >= _year && current_month+1 >= _month) {
 monthSelect += '</select>';
 }else{
 monthSelect += '</select><span class="next-btn">></span>';
 }
 return "<div class='calendar_header'>" + yearSelect + monthSelect + "</div>";
};
//渲染日历数据
DatePicker.prototype.renderCalendarData = function() {
 var self = this;
 var _year = this.currentDate.getFullYear(); //当前年
 var _month = this.currentDate.getMonth() + 1; //当前月
 var _firstDay = new Date(_year, _month - 1, 1); //当前月第一天
 var tds = this.opts.container.find(".calendar_body td");
 var header = self.renderHeader();
 this.opts.container.find(".calendar_header").html(header);
 tds.each(function(index, item) {
 var _thisDate = new Date(_year, _month - 1, index + 1 - _firstDay.getDay());
 var _thisDay = _thisDate.getDate();
 var _thisMonth = _thisDate.getMonth() + 1;
 var _thisDateTime=_thisDate.getTime();
 $(item).html(_thisDay).attr("date", _thisDay).removeClass("active").removeClass("disabled").removeClass("today");
 //当前月并且当前选中日期高亮
 if (_thisDay == self.tempActiveDate.getDate().getDate() && _thisMonth == _month) {
 $(item).addClass("active");
 }
 //今天日期样式
 if (_thisDay == self.todayDate) {
 $(item).addClass("today");
 }
 //非当前月或者大于今天的日期禁用
 if (_thisMonth !== _month || _thisDateTime>self.today.getTime()) {
 $(item).addClass("disabled").removeClass('active today');
 }
 //如果选择的日期大于今天，则日期重置
 if (_thisDateTime>self.today.getTime() && _thisDay == self.todayDate) {
 $(item).addClass("active");
 self.currentDate = _thisDate;
 }
 });
};
//设置当前日期
DatePicker.prototype.setCurrentDate = function(date) {
 this.tempActiveDate.setDate(date);
 this.currentDate = this.tempActiveDate.getDate();
 this.renderCalendarData();
 if(this.opts.updateCallback){
 this.opts.updateCallback.call(null,this.currentDate);
 }
};

//日期段由两个单独日期实例组成
function DateRangePicker() {
 this.start_picker = null;
 this.end_picker = null;
}
DateRangePicker.prototype.init = function(opts) {
 var self = this;
 this.opts = $.extend({
 "pos":"left",//日历位置，靠左或靠右
 "min_date":"1970-01-01",//最小日期
 "updateDateFn":function(){//日期更新回调
 
 }
 }, opts || {});
 this.createCalendarWrap();
 this.$wrap=this.opts.ele.parents(".ui-datepicker");
 this.start_picker = new DatePicker();
 this.end_picker = new DatePicker();
 this.start_picker.init({
 "container": this.$wrap.find(".calendar-container"),
 "min_date":self.opts.min_date,
 "yearOffset": 20,
 "updateCallback": function(){
 self.updateDate();
 }
 });
 this.end_picker.init({
 "container": this.$wrap.find(".calendar-container2"),
 "yearOffset": 20,
 "min_date":self.opts.min_date,
 "updateCallback": function(){
 self.updateDate();
 }
 });
 this.bindEvent();
};
DateRangePicker.prototype.bindEvent = function() {
 var self = this;
 var start_picker = self.start_picker,
 end_picker = self.end_picker;
 this.opts.ele.on("focus",function(){
 self.$wrap.find(".ui-daterangepicker-wrap").show();
 });
 $(".ui-daterangepicker-range").on("click", "[range-key]", function() {
 var _year = start_picker.currentDate.getFullYear();
 var _month = start_picker.currentDate.getMonth();
 var range = $(this).attr("range-key");
 var start_day = start_picker.todayDate,
 end_day = end_picker.todayDate
 switch (range) {
 case "今日":
 start_day = new Date(moment());
 break;
 case "昨日":
 start_day = new Date(moment().subtract(1, 'days'));
 break;
 case "最近7日":
 start_day = new Date(moment().subtract(6, 'days'));
 break;
 case "最近30日":
 start_day = new Date(moment().subtract(30, 'days'));
 break;
 }
 self.setDate(start_day,new Date())
 $(this).addClass("active").siblings("[range-key]").removeClass("active");
 });
 $("html").on("click",function(e){
 var $target=$(e.target);
 if($target.closest(".ui-daterangepicker-wrap").length==0&&$target[0]!=self.opts.ele[0]){
 self.$wrap.find(".ui-daterangepicker-wrap").hide();
 }
 });
};
DateRangePicker.prototype.updateDate = function() {
 var self = this;
 var start_date = moment(self.start_picker.currentDate).format(self.opts.format);
 var end_date = moment(self.end_picker.currentDate).format(self.opts.format);
 var start_date_time=new Date(self.start_picker.currentDate).getTime();
 var end_date_time=new Date(self.end_picker.currentDate).getTime();
 if(start_date_time>new Date().getTime()){
 self.start_picker.setCurrentDate(new Date());
 }
 if(end_date_time>new Date().getTime()){
 self.end_picker.setCurrentDate(new Date());
 }
 if(start_date_time>end_date_time){
 self.opts.ele.val(end_date + "~" + start_date);
 }else{
 self.opts.ele.val(start_date + "~" + end_date);
 }
 $(".ui-daterangepicker-range li").removeClass("active");
 self.opts.updateDateFn.call(null,this.getDate());
};
//获取起始日期和结束日期段,起始日期若大于结束日期则互换
DateRangePicker.prototype.getDate = function() {
 var start_date=Math.min(this.start_picker.currentDate.getTime(),this.end_picker.currentDate.getTime());
 var end_date=Math.max(this.start_picker.currentDate.getTime(),this.end_picker.currentDate.getTime());
 start_date=moment(start_date).format(this.opts.format);
 end_date=moment(end_date).format(this.opts.format);
 return {
 "start_date":start_date,
 "end_date": end_date
 };
};
//设置起始日期和结束日期
DateRangePicker.prototype.setDate = function(start_date, end_date) {
 this.start_picker.setCurrentDate(new Date(start_date));
 this.end_picker.setCurrentDate(new Date(end_date));
 this.updateDate();
};
//创建日期段容器
DateRangePicker.prototype.createCalendarWrap = function() {
 var $parent=this.opts.ele.parents(".ui-datepicker");
 var h=$parent.height(),w=$parent.width();
 var wrap = '<div class="ui-daterangepicker-wrap" style=":'+h+'px;'+this.opts.pos+':0"><div class="ui-calendar"><p class="calendar-title">开始日期</p><div class="calendar-container"></div></div>' +
 '<div class="ui-calendar"><p class="calendar-title">结束日期</p><div class="calendar-container2"></div></div>' +
 '<div class="ui-daterangepicker-range"><ul>' +
 '<li range-key="今日">今日</li>' +
 '<li range-key="昨日">昨日</li>' +
 '<li range-key="最近7日">最近7日</li>' +
 '<li range-key="最近30日">最近30日</li>' +
 '</ul>' +
 '</div></div>';
 $parent.append(wrap);
};
var daterangepicker = new DateRangePicker();
daterangepicker.init({
 "ele": $("#daterange"),
 "pos":"left",
 "min_date": "1990-01-01",
 "format": "YYYY:MM:DD",
 "updateDateFn":function(){
 console.log(daterangepicker.getDate())
 }
});

<div class="ui-datepicker">
 <input type="text" id="daterange" placeholder="请选择日期"/>
</div>

 {
 margin: 0;
 padding: 0;
}
body{font:14px "微软雅黑";}
li {
 list-style: none;
}
.ui-datepicker{
 display: inline-block;
 position: relative;
}
.ui-calendar {
 margin: 10px;
 width: 260px;
}
.single-calendar{
 border:1px solid #c;
 text-align: center;
 box-shadow: 0 0 3px rgba(0,0,0,0.25);
}
.ui-calendar select {
 padding: 3px 10px;
 margin: 0 10px;
}
.calendar_header {
 margin: 10px 0;
 text-align: center;
}
.calendar-table {
 border-collapse: collapse;
}
.calendar-table td {
 padding: 5px 10px;
 cursor: pointer;
 text-align: center;
 border-radius:3px;
}
.calendar-table td.today {
 color: #337ab7;
}
.calendar-table td.active {
 background: #337ab7;
 color:#fff;
}
.calendar-table td.disabled {
 color: #c;
 cursor: default;
}
.ui-calendar .next-btn,
.ui-calendar .prev-btn {
 padding:1px 4px;
 border:1px solid transparent;
 border-radius:3px;
 font-weight: bold;
 cursor: pointer;
}
.ui-calendar .next-btn:hover,.ui-calendar .prev-btn:hover{
 border-color:#c;
 box-shadow: 0 0 3px rgba(0,0,0,0.25);
}
.ui-daterangepicker-wrap {
 position: absolute;
 :0;
 width: 740px;
 border: 1px solid #c;
 border-radius:3px;
 box-shadow: 0 0 3px rgba(0,0,0,0.25);
 background: #fff;
 overflow: hidden;
 z-index:1000;
 display: none;
}
.calendar-title{
 text-align: center;
}
.ui-daterangepicker-wrap .ui-calendar {
 float: left;
}
.ui-daterangepicker-range{
 width: 150px;
 float: right;
 margin: 10px;
}
.ui-daterangepicker-range ul{
 margin-bottom:20px;
}
.ui-daterangepicker-range li {
 margin:5px 0;
 padding: 5px 10px;
 border-radius:3px;
 background: #f5f5f5;
 cursor: pointer;
}
.ui-daterangepicker-range li:hover,.ui-daterangepicker-range li.active {
 background: #337ab7;
 color:#fff;
}
.ui-daterangepicker-range .range-btn{
 width:60px;
 height: 30px;
 margin-right: 10px;
 border:1px solid #e5e5e5;
 border-radius:3px;
 background: none;
 cursor: pointer;
}
.ui-daterangepicker-range .range-confirm{
 background: #337ab7;
 border-color:#337ab7;
 color:#fff;
}