.net - How can I use System.Web.Caching.Cache in a Console application? -

Reference: .Net 3.5, C #
I want to see the caching mechanism in my console application.
Instead of searching the wheel, I would like to use the System.Web.Caching.Cache (and this is the final decision, I can not use other caching frameworks, why not ask ).
However, it seems that System.Web.Caching.Cache should only be run in a valid HTTP context. My very simple snippet looks like this:

  using the system; Using System.Web.Caching; Using System.Web; Cache c = new cache (); Try {c.Insert ("a", 123); } Hold (Exception Pre) {Console.WriteLine ("Can not be inserted to the cache, exception:"); Console.WriteLine (ex); }  

And the result is:

 The cache can not be included in the exception: System.NullReferenceException: Object is not set to an instance of reference object . On MyWeb.Caching.Cache.Instert (string key, object value) on MyClass.RunSnippet () 

So obviously, I'm doing something wrong here, any thoughts?

HttpContext.Current.Cache . thanks all!

The document for the cash constructor says that this is only for internal use. To get your cache object, call HttpRuntime.Cache instead of making an example through Constructor.