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js_cookie.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>js cookie使用--广告推广例子(有待优化，不完整)</title>
<style type="text/css">
#content{width: 320px; height: 1000px; margin: 0 auto; position: relative; overflow: hidden;background-color: #eee; }
#adv{ position: fixed; bottom: 0; left: 50%; margin-left: -160px;width: 320px; height: 60px; display: none;}
#adv .close{position: absolute; right: 2px;top: 2px;font-size: 18px; color: orangered; cursor: pointer;}
#adv p{display: none;}
</style>
<script src="jquery-1.12.0.min.js"></script>
<script src="jquery.cookie.js"></script>
</head>
<body>
<div id="content">
<div id="adv">
<img src="images/advimg2.png" />
<span class="close">X</span>
<p></p>
</div>
</div>
<script type="text/javascript">
$(document).ready(function(){
var cookie={
set:function(key,value,hours){
var date=new Date();
date.setTime(date.getTime()+hours*3600*1000);
document.cookie=key+"="+value+";expires="+date.toGMTString()+";path=/";
},
get:function(key){
var getCookie=document.cookie.replace(/[ ]/g,"");
var arrCook=getCookie.split(";");
var tips;//存储获取
for(var i=0;i<arrCook.length;i++){
var arr=arrCook[i].split("=");
if(key == arr[0]){
tips=arr[1];
break;
}
}
return tips;
},
del:function(key){
var exp=new Date();
exp.setTime(exp.getTime()-1);
var val=this.get(key);
if(val!=null){
document.cookie=key+"="+val+';expires='+exp.toGMTString();
}
}
}
//main func
function advSpread(img,hour,num){
//console.log(img,hour,num);//yeah!
var intervals;
var imgCookie=cookie.get('image'),imgStatus=cookie.get('status');
if(imgCookie){
console.log('1:img有缓存');
$("#adv").hide(0);
}else{
if(imgStatus){
console.log('2:缓存过期啦');
cookie.del("image");
cookie.del("status");
var img='images/advimg.png',hour=0.1,num=5;
advSpread(img,hour,num);
}else{
console.log('3:没有缓存');
cookie.set('image',img,hour);
cookie.set('status',status,hour);
$("#adv").show(0);
clearInterval(intervals);
intervals=setInterval(function(){
if(num<=1){
hiddenAdv();
clearInterval(intervals);
}
$("#adv p").html(num);
num--;
}, 1000)
}
}
}
function hiddenAdv(){
$("#adv").stop().fadeOut('slow');
}
var path='http://127.0.0.1:8020/demo/';
var advimg=path+$('#adv').find('img').attr('src'); //广告图路径
var hourNum=0.1,shouNum=10; //hourNum为多少(小时)内在同一个浏览器中展示一次；shouNum为显示多少(秒)，也就是几秒后关闭广告图
advSpread(advimg,hourNum,shouNum);
$('.close').on('click',hiddenAdv);
});
</script>
</body>
</html>