JavaScript自定义日历实现签到功能

本文实例为大家分享了JavaScript自定义日历签到功能的具体代码，供大家参考，具体内容如下

先看下效果图

红色块为已签到的日期，样式可以随意更改，清晰明了，话不多说上代码：

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
     <head>
        <base href="<%=basePath%>" rel="external nofollow" >
        <title>My JSP 'index.jsp' starting page</title>
        <script type="text/javascript" src="js/jquery.min.1.12.4.js"></script>
        <link rel="stylesheet" type="text/css" href="css/sign.css" rel="external nofollow" />
        <script type="text/javascript" src="js/calendar.js"></script>
        <script type="text/javascript">
        $(function(){
          //ajax获取日历json数据
          var signList=[{"signDay":"10"},{"signDay":"11"},{"signDay":"12"},{"signDay":"13"}];
           calUtil.init(signList);
        });
        </script>
    </head>
    <body>
        <div style="width:300px;height:300px;" id="calendar"></div>
    </body>
</html>

js文件：

var calUtil = {
  //当前日历显示的年份
  showYear:new Date().getFullYear(),
  //当前日历显示的月份
  showMonth:new Date().getMonth()+1,
  //当前日历显示的天数
  showDays:new Date().getDate(),
  eventName:"load",
  //初始化日历
  init:function(signList){
    calUtil.setMonthAndDay();
    calUtil.draw(signList);
    calUtil.bindEnvent();
  },
  draw:function(signList){
    //绑定日历
    var str = calUtil.drawCal(calUtil.showYear,calUtil.showMonth,signList);
    $("#calendar").html(str);
    //绑定日历表头
    var calendarName=calUtil.showYear+"年"+calUtil.showMonth+"月";
    $(".calendar_month_span").html(calendarName);  
  },
  //绑定事件
  bindEnvent:function(){
    //绑定上个月事件
    $(".calendar_month_prev").click(function(){
      //ajax获取日历json数据
      var signList=[{"signDay":"10"},{"signDay":"11"},{"signDay":"12"},{"signDay":"13"}];
      calUtil.eventName="prev";
      calUtil.init(signList);
    });
    //绑定下个月事件
    $(".calendar_month_next").click(function(){
      //ajax获取日历json数据
      var signList=[{"signDay":"10"},{"signDay":"11"},{"signDay":"12"},{"signDay":"13"}];
      calUtil.eventName="next";
      calUtil.init(signList);
    });
  },
  //获取当前选择的年月
  setMonthAndDay:function(){
    switch(calUtil.eventName)
    {
      case "load":
        var current = new Date();
        calUtil.showYear=current.getFullYear();
        calUtil.showMonth=current.getMonth() + 1;
        break;
      case "prev":
        var nowMonth=$(".calendar_month_span").html().split("年")[1].split("月")[0];
        calUtil.showMonth=parseInt(nowMonth)-1;
        if(calUtil.showMonth==0)
        {
            calUtil.showMonth=12;
            calUtil.showYear-=1;
        }
        break;
      case "next":
        var nowMonth=$(".calendar_month_span").html().split("年")[1].split("月")[0];
        calUtil.showMonth=parseInt(nowMonth)+1;
        if(calUtil.showMonth==13)
        {
            calUtil.showMonth=1;
            calUtil.showYear+=1;
        }
        break;
    }
  },
  getDaysInmonth : function(iMonth, iYear){
   var dPrevDate = new Date(iYear, iMonth, 0);
   return dPrevDate.getDate();
  },
  qiandao:function(){
      alert("签到成功");
      var signList=[{"signDay":"10"},{"signDay":"11"},{"signDay":"12"},{"signDay":"13"},{"signDay":"17"}];
      calUtil.init(signList);
  },
  bulidCal : function(iYear, iMonth) {
   var aMonth = new Array();
   aMonth[0] = new Array(7);
   aMonth[1] = new Array(7);
   aMonth[2] = new Array(7);
   aMonth[3] = new Array(7);
   aMonth[4] = new Array(7);
   aMonth[5] = new Array(7);
   aMonth[6] = new Array(7);
   var dCalDate = new Date(iYear, iMonth - 1, 1);
   var iDayOfFirst = dCalDate.getDay();
   var iDaysInMonth = calUtil.getDaysInmonth(iMonth, iYear);
   var iVarDate = 1;
   var d, w;
   aMonth[0][0] = "日";
   aMonth[0][1] = "一";
   aMonth[0][2] = "二";
   aMonth[0][3] = "三";
   aMonth[0][4] = "四";
   aMonth[0][5] = "五";
   aMonth[0][6] = "六";
   for (d = iDayOfFirst; d < 7; d++) {
    aMonth[1][d] = iVarDate;
    iVarDate++;
   }
   for (w = 2; w < 7; w++) {
    for (d = 0; d < 7; d++) {
     if (iVarDate <= iDaysInMonth) {
      aMonth[w][d] = iVarDate;
      iVarDate++;
     }
    }
   }
   return aMonth;
  },
  ifHasSigned : function(signList,day){
   var signed = false;
   $.each(signList,function(index,item){
    if(item.signDay == day) {
     signed = true;
     return false;
    }
   });
   return signed ;
  },
  drawCal : function(iYear, iMonth ,signList) {
   var myMonth = calUtil.bulidCal(iYear, iMonth);
   var htmls = new Array();
   htmls.push("<div class='sign_main' id='sign_layer'>");
   htmls.push("<div class='sign_succ_calendar_title'>");
   htmls.push("<div class='calendar_month_next'>下月</div>");
   htmls.push("<div class='calendar_month_prev'>上月</div>");
   htmls.push("<div class='calendar_month_span'></div>");
   htmls.push("</div>");
   htmls.push("<div class='sign' id='sign_cal'>");
   htmls.push("<table>");
   htmls.push("<tr>");
   htmls.push("<th>" + myMonth[0][0] + "</th>");
   htmls.push("<th>" + myMonth[0][1] + "</th>");
   htmls.push("<th>" + myMonth[0][2] + "</th>");
   htmls.push("<th>" + myMonth[0][3] + "</th>");
   htmls.push("<th>" + myMonth[0][4] + "</th>");
   htmls.push("<th>" + myMonth[0][5] + "</th>");
   htmls.push("<th>" + myMonth[0][6] + "</th>");
   htmls.push("</tr>");
   var d, w;
   for (w = 1; w < 7; w++) {
    htmls.push("<tr>");
    for (d = 0; d < 7; d++) {
     var ifHasSigned = calUtil.ifHasSigned(signList,myMonth[w][d]);
     if(myMonth[w][d]==new Date().getDate()&&new Date().getMonth()+1==calUtil.showMonth&&!ifHasSigned){
         //当前月当前天，允许签到
         htmls.push("<td οnclick='calUtil.qiandao()' class='today'>" + (!isNaN(myMonth[w][d]) ? myMonth[w][d] : " ") + "</td>");
     }else{
         if(ifHasSigned){
             htmls.push("<td class='on'>" + (!isNaN(myMonth[w][d]) ? myMonth[w][d] : " ") + "</td>");
         } else {
             htmls.push("<td>" + (!isNaN(myMonth[w][d]) ? myMonth[w][d] : " ") + "</td>");
         }
     }
    }
    htmls.push("</tr>");
   }
   htmls.push("</table>");
   htmls.push("</div>");
   htmls.push("</div>");
   return htmls.join('');
  }
};

css文件：

.singer_r_img{display:block;width:114px;height:52px;line-height:45px;background:url(images/sing_week.webp) right 2px no-repeat;vertical-align:middle;*margin-bottom:-10px;text-decoration:none;}
.singer_r_img:hover{background-position:right -53px;text-decoration:none;}
.singer_r_img span{margin-left:14px;font-size:16px;font-family:'Hiragino Sans GB','Microsoft YaHei',sans-serif !important;font-weight:700;color:#165379;}
.singer_r_img.current{background:url(images/sing_sing.webp) no-repeat 0 2px;border:0;text-decoration:none;}
.sign table{border-collapse: collapse;border-spacing: 0;width:100%;}
.sign th,.sign td {width: 30px;height: 40px;text-align: center;line-height: 40px;border:1px solid #e3e3e3;}
.sign th {font-size: 16px;}
.sign td {color: #404040;vertical-align: middle;}   
.sign .on {background-color:red;}
.sign .today {background-color:#FFAA33;}
.calendar_month_next,.calendar_month_prev{width: 34px;height: 40px;cursor: pointer;background:url(images/sign_arrow.webp) no-repeat;}
.calendar_month_next {float: right;background-position:-42px -6px;}
.calendar_month_span {display: inline;line-height: 40px;font-size: 16px;color: #656565;letter-spacing: 2px;font-weight: bold;}
.calendar_month_prev {float: left;background-position:-5px -6px;}
.sign_succ_calendar_title {text-align: center;width:398px;border-left:1px solid #e3e3e3;border-right:1px solid #e3e3e3;background:#fff;}
.sign_main {width: 400px;border-top:1px solid #e3e3e3;font-family: "Microsoft YaHei",SimHei;}