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本篇內容介紹了“JavaScript怎么自定義日歷實現簽到功能”的有關知識，在實際案例的操作過程中，不少人都會遇到這樣的困境，接下來就讓小編帶領大家學習一下如何處理這些情況吧！希望大家仔細閱讀，能夠學有所成！
效果圖
紅色塊為已簽到的日期，樣式可以隨意更改，清晰明了，話不多說上代碼：
<%@ 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獲取日歷json數據
var signList=[{"signDay":"10"},{"signDay":"11"},{"signDay":"12"},{"signDay":"13"}];
calUtil.init(signList);
});
</script>
</head>
<body>
<div id="calendar"></div>
</body>
</html>js文件：
var calUtil = {
//當前日歷顯示的年份
showYear:new Date().getFullYear(),
//當前日歷顯示的月份
showMonth:new Date().getMonth()+1,
//當前日歷顯示的天數
showDays:new Date().getDate(),
eventName:"load",
//初始化日歷
init:function(signList){
calUtil.setMonthAndDay();
calUtil.draw(signList);
calUtil.bindEnvent();
},
draw:function(signList){
//綁定日歷
var str = calUtil.drawCal(calUtil.showYear,calUtil.showMonth,signList);
$("#calendar").html(str);
//綁定日歷表頭
var calendarName=calUtil.showYear+"年"+calUtil.showMonth+"月";
$(".calendar_month_span").html(calendarName);
},
//綁定事件
bindEnvent:function(){
//綁定上個月事件
$(".calendar_month_prev").click(function(){
//ajax獲取日歷json數據
var signList=[{"signDay":"10"},{"signDay":"11"},{"signDay":"12"},{"signDay":"13"}];
calUtil.eventName="prev";
calUtil.init(signList);
});
//綁定下個月事件
$(".calendar_month_next").click(function(){
//ajax獲取日歷json數據
var signList=[{"signDay":"10"},{"signDay":"11"},{"signDay":"12"},{"signDay":"13"}];
calUtil.eventName="next";
calUtil.init(signList);
});
},
//獲取當前選擇的年月
setMonthAndDay:function(){
switch(calUtil.eventName)
{
case "load":
var current = new Date();
calUtil.showYear=current.getFullYear();
calUtil.showMonth=current.getMonth() + 1;
break;
case "prev":
var nowMonth=$(".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("簽到成功");
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){
//當前月當前天，允許簽到
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.gif) 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.gif) 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.png) 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;}“JavaScript怎么自定義日歷實現簽到功能”的內容就介紹到這里了，感謝大家的閱讀。如果想了解更多行業相關的知識可以關注億速云網站，小編將為大家輸出更多高質量的實用文章！
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