兼容cookie和webStorage
html页面
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script src="js/sea.js"></script>
<script>
seajs.config({
alias:{
cookie:'cookie',
strong:'strong'
}
})
seajs.use("main")
</script>
</head>
<body>
</body>
</html>
main.js页面
define(function(require,exports,module){
var strong=require("strong");
strong.setItem("hellowords","01-20 16:15",1);
strong.setItem("style","hello",1);
//strong.removeItem('style');
//strong.removeItem("hellowords");
strong.setItem("lili","hello",1);
strong.setItem("z","zz",1);
//strong.removeItem('lili');
strong.setItem('guo','boyu',1);
//strong.getItem("guo")
console.log(strong.getItem("guo"))
})
strong.js页面
define(function(require,exports,module){
var ls=window.localStorage;
if(!ls){// 如果支持webStorage
return{
getItem:function(key){
return ls.getItem(key);
},
setItem:function(key,val){
this.removeItem(key);
return ls.setItem(key,val);
},
removeItem:function(key){
return ls.removeItem(key);
}
}
}else{// 支持cookie
var cookie=require("cookie");
return{
getItem:function(key){
return cookie.getItem(key)
},
setItem:function(key,val,days){
cookie.setItem(key,val,days)
},
removeItem:function(key){
cookie.removeItem(key)
}
}
}
})
cookie页面
define(function(require,exports,module){
return {
getItem:function(key){
//console.log(key)
var reg=new RegExp('(^| )'+key+'=([^;]*)(;|$)');
var arr=document.cookie.match(reg);
//console.log(arr)
if(arr) return unescape(arr[2]);
return null;
},
setItem:function(key,val,days){
//如果不设置天数 , 默认为30天
days=days?days:30;
var exp=new Date();
exp.setTime(exp*1+days*(24*60*60*1000));
if(typeof(Domain)==="undefined" || Domain==null){
Domain=location.host // 获取主机地址
}
document.cookie=key+'='+escape(val)+';expires='+exp+';domain='+Domain+';path=/';
},
removeItem:function(key){
// 设置时间过期
if(this.getItem(key)){
this.setItem(key,"",-1);
}
}
}
})
