cookie与封装 

<!DOCTYPE HTML>
<html lang="zh">
<head>
    <meta charset="utf-8"/>
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"/>
    <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no"/>
    <meta name="applicable-device" content="pc,mobile"/>
    <meta name="renderer" content="webkit"/>
    <meta name="keywords" content=""/>
    <meta name="description" content=""/>
    <title>cookie与封装</title>
</head>
<body>

<script src="http://s0.ifengimg.com/static/js/jquery-1.7.2.min_c4de8813.js"></script>
<script>
var cookieUtil={
    set:function(name,value,expires,path,domain,secure){//设置cookie
        var cookieName=encodeURIComponent(name)+'='+encodeURIComponent(value);
        if(expires instanceof Date){
            cookieName+= ';expires='+expires;
        }
        if(path){
            cookieName+= ';path='+path;
        }
        if(domain){
            cookieName+= ';domain='+domain;
        }
        if(secure){
            cookieName+= ';secure';
        }
        document.cookie=cookieName;

    },
    setDate:function(day){//设置过期时间
        var date=null;
        if(typeof day =='number' && day>0){
            date=new Date();
            date.setDate(date.getDate()+day);
        }else{
            throw new Error('你输入的天数不合法，请输入大于0的数字');
        }
        return date;

    },
    get:function(name){//获取cookie
        var cookieName=encodeURIComponent(name)+'=',
                cookieStart,
                cookieValue;
        cookieStart=document.cookie.indexOf(cookieName);
        if(cookieStart>-1){
            var cookieEnd=document.cookie.indexOf(';',cookieStart);
            if(cookieEnd == -1){
                cookieEnd=document.cookie.length;
            }
            cookieValue=decodeURIComponent(document.cookie.substring(cookieStart+cookieName.length,cookieEnd));
        }
        return cookieValue;

    },
    unSet:function(name,path,domain,secure){//删除cookie
        cookieUtil.set(name,'',new Date(0),path,domain,secure);

    }
};

//测试设置cookie
/*cookieUtil.set('use','xiangcy',cookieUtil.setDate(1));
cookieUtil.set('url','ycvo.com',cookieUtil.setDate(28));
cookieUtil.set('email','xiangcy@163.com');*/

//测试删除cookie
/*
cookieUtil.unSet('use');
cookieUtil.unSet('url');
cookieUtil.unSet('email');
*/

//测试获取cookie
alert(cookieUtil.get('use'));
alert(cookieUtil.get('url'));
alert(cookieUtil.get('email'));


</script>
</body>
</html>

　　

posted @ 2016-05-12 11:06  xiangcy  阅读(146)  评论(0)    收藏  举报