在 Application_BeginRequest 中設置會話變數

我正在使用 ASP.NET MVC，我需要在Application_BeginRequest. 問題是此時對象HttpContext.Current.Session始終是null.

protected void Application_BeginRequest(Object sender, EventArgs e)
{
   if (HttpContext.Current.Session != null)
   {
       //this code is never executed, current session is always null
       HttpContext.Current.Session.Add("__MySessionVariable", new object());
   }
}

在 Global.asax 中嘗試 AcquireRequestState。會話在此事件中可用，每個請求都會觸發：

void Application_AcquireRequestState(object sender, EventArgs e)
{
   // Session is Available here
   HttpContext context = HttpContext.Current;
   context.Session["foo"] = "foo";
}

Valamas - 建議編輯：

成功地將其與 MVC 3 一起使用並避免了會話錯誤。

protected void Application_AcquireRequestState(object sender, EventArgs e)
{
   HttpContext context = HttpContext.Current;
   if (context != null && context.Session != null)
   {
       context.Session["foo"] = "foo";
   }
}

引用自：https://stackoverflow.com/questions/5977285