Javascript中有decodeURI和encodeURI两个函数

.net端

C# code

    private void setCookie(string name,string value)
    {
        System.Web.HttpCookie cookie = new HttpCookie(name, System.Web.HttpUtility.UrlEncode(value));
        cookie.Expires = System.DateTime.Now.AddDays(30);
        cookie.Path = "/";
        System.Web.HttpContext.Current.Response.AppendCookie(cookie);
    }

    private string getCookie(string name)
    {
        if (Request.Cookies[name] != null)
        {
            return System.Web.HttpUtility.UrlDecode(Request.Cookies[name].Value);
        }
        else
        {
            return "";
        }
    }

Javascript端

JScript code

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

function getCookie(name)
{
    var arrCookies = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));
     if(arrCookies != null) return decodeURI(arrCookies[2]); return null;

}