我有一个ASP MVC应用程序,其中包含一些看似简单的代码来保存和检索cookie,但由于某种原因它们无法持久化。控制器中的代码如下:
if (System.Web.HttpContext.Current.Response.Cookies["CountryPreference"] == null)
{
HttpCookie cookie = new HttpCookie("CountryPreference");
cookie.Value = country;
cookie.Expires = DateTime.Now.AddYears(1);
System.Web.HttpContext.Current.Response.Cookies.Add(cookie);
}
再次加载它的方法:
if (System.Web.HttpContext.Current.Request.Cookies["CountryPreference"] != null)
{
System.Web.HttpContext.Current.Request.Cookies["CountryPreference"].Expires = DateTime.Now.AddYears(1);
data.Country = System.Web.HttpContext.Current.Request.Cookies["CountryPreference"].Value;
}
出于某些原因,Cookie 总是 null?