一个简单的日期选择器

比眉伴天荒 2022-05-27 08:14 269阅读 0赞

<%@page  pageEncoding="utf-8"%>
    <html>
    <head>
    <title>JS日期选择器</title>
    <script type="text/javascript">
    function HS_DateAdd(interval,number,date){
     number = parseInt(number);
     if (typeof(date)=="string"){var date = new Date(date.split("-")[0],date.split("-")[1],date.split("-")[2])}
     if (typeof(date)=="object"){var date = date}
     switch(interval){
     case "y":return new Date(date.getFullYear()+number,date.getMonth(),date.getDate()); break;
     case "m":return new Date(date.getFullYear(),date.getMonth()+number,checkDate(date.getFullYear(),date.getMonth()+number,date.getDate())); break;
     case "d":return new Date(date.getFullYear(),date.getMonth(),date.getDate()+number); break;
     case "w":return new Date(date.getFullYear(),date.getMonth(),7*number+date.getDate()); break;
     }
    }
    function checkDate(year,month,date){
     var enddate = ["31","28","31","30","31","30","31","31","30","31","30","31"];
     var returnDate = "";
     if (year%4==0){enddate[1]="29"}
     if (date>enddate[month]){returnDate = enddate[month]}else{returnDate = date}
     return returnDate;
    }
    
    function WeekDay(date){
     var theDate;
     if (typeof(date)=="string"){theDate = new Date(date.split("-")[0],date.split("-")[1],date.split("-")[2]);}
     if (typeof(date)=="object"){theDate = date}
     return theDate.getDay();
    }
    function HS_calender(){
     var lis = "";
     var style = "";
     style +="<style type='text/css'>";
     style +=".calender { width:170px; height:auto; font-size:12px; margin-right:14px; background:url(calenderbg.gif) no-repeat right center #fff; border:1px solid #397EAE; padding:1px}";
     style +=".calender ul {list-style-type:none; margin:0; padding:0;}";
     style +=".calender .day { background-color:#EDF5FF; height:20px;}";
     style +=".calender .day li,.calender .date li{ float:left; width:14%; height:20px; line-height:20px; text-align:center}";
     style +=".calender li a { text-decoration:none; font-family:Tahoma; font-size:11px; color:#333}";
     style +=".calender li a:hover { color:#f30; text-decoration:underline}";
     style +=".calender li a.hasArticle {font-weight:bold; color:#f60 !important}";
     style +=".lastMonthDate, .nextMonthDate {color:#bbb;font-size:11px}";
     style +=".selectThisYear a, .selectThisMonth a{text-decoration:none; margin:0 2px; color:#000; font-weight:bold}";
     style +=".calender .LastMonth, .calender .NextMonth{ text-decoration:none; color:#000; font-size:18px; font-weight:bold; line-height:16px;}";
     style +=".calender .LastMonth { float:left;}";
     style +=".calender .NextMonth { float:right;}";
     style +=".calenderBody {clear:both}";
     style +=".calenderTitle {text-align:center;height:20px; line-height:20px; clear:both}";
     style +=".today { background-color:#ffffaa;border:1px solid #f60; padding:2px}";
     style +=".today a { color:#f30; }";
     style +=".calenderBottom {clear:both; border-top:1px solid #ddd; padding: 3px 0; text-align:left}";
     style +=".calenderBottom a {text-decoration:none; margin:2px !important; font-weight:bold; color:#000}";
     style +=".calenderBottom a.closeCalender{float:right}";
     style +=".closeCalenderBox {float:right; border:1px solid #000; background:#fff; font-size:9px; width:11px; height:11px; line-height:11px; text-align:center;overflow:hidden; font-weight:normal !important}";
     style +="</style>";
    
     var now;
     if (typeof(arguments[0])=="string"){
      selectDate = arguments[0].split("-");
      var year = selectDate[0];
      var month = parseInt(selectDate[1])-1+"";
      var date = selectDate[2];
      now = new Date(year,month,date);
     }else if (typeof(arguments[0])=="object"){
      now = arguments[0];
     }
     var lastMonthEndDate = HS_DateAdd("d","-1",now.getFullYear()+"-"+now.getMonth()+"-01").getDate();
     var lastMonthDate = WeekDay(now.getFullYear()+"-"+now.getMonth()+"-01");
     var thisMonthLastDate = HS_DateAdd("d","-1",now.getFullYear()+"-"+(parseInt(now.getMonth())+1).toString()+"-01");
     var thisMonthEndDate = thisMonthLastDate.getDate();
     var thisMonthEndDay = thisMonthLastDate.getDay();
     var todayObj = new Date();
     today = todayObj.getFullYear()+"-"+todayObj.getMonth()+"-"+todayObj.getDate();
     
     for (i=0; i<lastMonthDate; i++){  // Last Month's Date
      lis = "<li class='lastMonthDate'>"+lastMonthEndDate+"</li>" + lis;
      lastMonthEndDate--;
     }
     for (i=1; i<=thisMonthEndDate; i++){ // Current Month's Date
    
      if(today == now.getFullYear()+"-"+now.getMonth()+"-"+i){
       var todayString = now.getFullYear()+"-"+(parseInt(now.getMonth())+1).toString()+"-"+i;
       lis += "<li><a href=javascript:void(0) class='today' οnclick='_selectThisDay(this)' title='"+now.getFullYear()+"-"+(parseInt(now.getMonth())+1)+"-"+i+"'>"+i+"</a></li>";
      }else{
       lis += "<li><a href=javascript:void(0) οnclick='_selectThisDay(this)' title='"+now.getFullYear()+"-"+(parseInt(now.getMonth())+1)+"-"+i+"'>"+i+"</a></li>";
      }
      
     }
     var j=1;
     for (i=thisMonthEndDay; i<6; i++){  // Next Month's Date
      lis += "<li class='nextMonthDate'>"+j+"</li>";
      j++;
     }
     lis += style;
    
     var CalenderTitle = "<a href='javascript:void(0)' class='NextMonth' οnclick=HS_calender(HS_DateAdd('m',1,'"+now.getFullYear()+"-"+now.getMonth()+"-"+now.getDate()+"'),this) title='Next Month'>»</a>";
     CalenderTitle += "<a href='javascript:void(0)' class='LastMonth' οnclick=HS_calender(HS_DateAdd('m',-1,'"+now.getFullYear()+"-"+now.getMonth()+"-"+now.getDate()+"'),this) title='Previous Month'>«</a>";
     CalenderTitle += "<span class='selectThisYear'><a href='javascript:void(0)' οnclick='CalenderselectYear(this)' title='Click here to select other year' >"+now.getFullYear()+"</a></span>年<span class='selectThisMonth'><a href='javascript:void(0)' οnclick='CalenderselectMonth(this)' title='Click here to select other month'>"+(parseInt(now.getMonth())+1).toString()+"</a></span>月";
    
     if (arguments.length>1){
      arguments[1].parentNode.parentNode.getElementsByTagName("ul")[1].innerHTML = lis;
      arguments[1].parentNode.innerHTML = CalenderTitle;
    
     }else{
      var CalenderBox = style+"<div class='calender'><div class='calenderTitle'>"+CalenderTitle+"</div><div class='calenderBody'><ul class='day'><li>日</li><li>一</li><li>二</li><li>三</li><li>四</li><li>五</li><li>六</li></ul><ul class='date' id='thisMonthDate'>"+lis+"</ul></div><div class='calenderBottom'><a href='javascript:void(0)' class='closeCalender' οnclick='closeCalender(this)'>×</a><span><span><a href=javascript:void(0) οnclick='_selectThisDay(this)' title='"+todayString+"'>Today</a></span></span></div></div>";
      return CalenderBox;
     }
    }
    function _selectThisDay(d){
     var boxObj = d.parentNode.parentNode.parentNode.parentNode.parentNode;
      boxObj.targetObj.value = d.title;
      boxObj.parentNode.removeChild(boxObj);
    }
    function closeCalender(d){
     var boxObj = d.parentNode.parentNode.parentNode;
      boxObj.parentNode.removeChild(boxObj);
    }
    
    function CalenderselectYear(obj){
      var opt = "";
      var thisYear = obj.innerHTML;
      for (i=1970; i<=2020; i++){
       if (i==thisYear){
        opt += "<option value="+i+" selected>"+i+"</option>";
       }else{
        opt += "<option value="+i+">"+i+"</option>";
       }
      }
      opt = "<select οnblur='selectThisYear(this)' οnchange='selectThisYear(this)' style='font-size:11px'>"+opt+"</select>";
      obj.parentNode.innerHTML = opt;
    }
    
    function selectThisYear(obj){
     HS_calender(obj.value+"-"+obj.parentNode.parentNode.getElementsByTagName("span")[1].getElementsByTagName("a")[0].innerHTML+"-1",obj.parentNode);
    }
    
    function CalenderselectMonth(obj){
      var opt = "";
      var thisMonth = obj.innerHTML;
      for (i=1; i<=12; i++){
       if (i==thisMonth){
        opt += "<option value="+i+" selected>"+i+"</option>";
       }else{
        opt += "<option value="+i+">"+i+"</option>";
       }
      }
      opt = "<select οnblur='selectThisMonth(this)' οnchange='selectThisMonth(this)' style='font-size:11px'>"+opt+"</select>";
      obj.parentNode.innerHTML = opt;
    }
    function selectThisMonth(obj){
     HS_calender(obj.parentNode.parentNode.getElementsByTagName("span")[0].getElementsByTagName("a")[0].innerHTML+"-"+obj.value+"-1",obj.parentNode);
    }
    function HS_setDate(inputObj){
     var calenderObj = document.createElement("span");
     calenderObj.innerHTML = HS_calender(new Date());
     calenderObj.style.position = "absolute";
     calenderObj.targetObj = inputObj;
     inputObj.parentNode.insertBefore(calenderObj,inputObj.nextSibling);
    }
      </script>
    <style>
      body {font-size:12px}
      td {text-align:center}
      h1 {font-size:26px;}
      h4 {font-size:16px;}
      em {color:#999; margin:0 10px; font-size:11px; display:block}
      </style>
    </head>
    <body>
    <h1>Date Picker Demo By Codefans.net</h1>
    <h4 style="border-bottom:1px solid #ccc">ver:1.0</h4>
    <table border="1" width="400" height="150">
     <tr>
      <td>这是示例文字</td>
      <td>示例输入框</td>
      <td>文本文本文本</td>
     </tr>
     <tr>
      <td>示例输入框</td>
      <td><input type="text" style="width:70px" οnfοcus="HS_setDate(this)">文本</td>
      <td>这里是你的文字</td>
     </tr>
     <tr>
      <td>一段文字</td>
      <td>示例输入框</td>
      <td>文本<input type="text" style="width:70px" οnfοcus="HS_setDate(this)">文本</td>
     </tr>
    </table>
    <ul>
     <li>它不需要其他框架类支持</li>
     <li>支持多种浏览器</li>
     <li>点击年份、月份可下拉选择</li>
    </ul>
    </body>
    </html>

![20180414214430732][]

[20180414214430732]: /images/20220527/7772f0cb00b7416fac2db3cb5f7e3fcd.png