用session做购物车的具体实现

GridView 做购物车时用session怎么做，要具体代码，如果用Cookie做简单还是用session做简单

Cookie做简单点吧！

 //写cookies 

function setCookie(name,value) 
{ 
    var Days = 30; 
    var exp = new Date(); 
    exp.setTime(exp.getTime() + Days*24*60*60*1000); 
    document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString(); 
} 

//读取cookies 
function getCookie(name) 
{ 
    var arr,reg=new RegExp("(^| )"+name+"=([^;]*)(;|$)");

    if(arr=document.cookie.match(reg))

        return unescape(arr[2]); 
    else 
        return null; 
} 

//删除cookies 
function delCookie(name) 
{ 
    var exp = new Date(); 
    exp.setTime(exp.getTime() - 1); 
    var cval=getCookie(name); 
    if(cval!=null) 
        document.cookie= name + "="+cval+";expires="+exp.toGMTString(); 
} 
//使用示例 
setCookie("name","hayden"); 
alert(getCookie("name"));