Question

我想在关闭浏览器时保留会话cookie。

这是我的cookie会话配置部分：

<authentication mode="Forms">
  <forms name=".ASPXFORMSAUTH" cookieless="AutoDetect" defaultUrl="~/Default.aspx" loginUrl="~/Account/Login.aspx" timeout="99999999" />
</authentication>

我使用Chrome进行测试，但没关系，但是当我关闭浏览器时，Firefox和IE会删除cookie。

谢谢。

Answer 1

按照设计，ASP.NET会话状态使用非持久会话cookie，这些cookie在您关闭浏览器时无法生存。

您需要一种使ASP.NET会话cookie持久化的方法。

创建持久性Cookie。

//create a cookie
HttpCookie myCookie = new HttpCookie("myCookie");

//Add key-values in the cookie
myCookie.Values.Add("userid", "USER_ID_HERE");

//set cookie expiry date-time. Made it to last for next 12 hours.
myCookie.Expires = DateTime.Now.AddHours(12);

//Most important, write the cookie to client.
Response.Cookies.Add(myCookie);

阅读持久性Cookie。

//Assuming user comes back after several hours. several < 12.
//Read the cookie from Request.
HttpCookie myCookie = Request.Cookies["myCookie"];
if (myCookie == null)
{
    //No cookie found or cookie expired.
    //Handle the situation here, Redirect the user or simply return;
}

//ok - cookie is found.
//Gracefully check if the cookie has the key-value as expected.
if (!string.IsNullOrEmpty(myCookie.Values["userid"]))
{
    string userId = myCookie.Values["userid"].ToString();
    //Yes userId is found. Mission accomplished.
}

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ASP.NET关闭浏览器时不会清除cookie会话

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