mvc存储Cookie和读取Cookie方法：

//存储

HttpCookie cookie = new HttpCookie("User");

System.Text.Encoding enc = System.Text.Encoding.GetEncoding("gb2312");

cookie["id"] = HttpUtility.UrlEncode(logid.ToString(), enc);

cookie["UserName"] = HttpUtility.UrlEncode(loginname, enc);

cookie["password"] = HttpUtility.UrlEncode(loginpass, enc);

//读取                          

System.Text.Encoding encr = System.Text.Encoding.GetEncoding("gb2312");

string id = HttpUtility.UrlDecode(cookie["id"], encr);

string UserName = HttpUtility.UrlDecode(cookie["UserName"], encr);

string password = HttpUtility.UrlDecode(cookie["password"], encr);