asp.net-mvc - 如何在 ASP.NET Controller 中获取 'MvcApplication' 实例？

Question

我想 MvcApplication是全局singleton .我想获取 MvcApplication 的实例在 Controller 中。然后我将以下代码放入 Controller :

MvcApplication app = HttpContext.Current.Application as MvcApplication;

它给了我一个错误:

Error 2 'System.Web.HttpContextBase' does not contain a definition for 'Current' and no extension method 'Current' accepting a first argument of type 'System.Web.HttpContextBase' could be found (are you missing a using directive or an assembly reference?)

为什么？我如何访问 MvcApplication在 Controller 中？

Answer 1

尝试这个:

var app = HttpContext.Current.ApplicationInstance as MvcApplication;