asp.net-mvc – 控制器的实例上的HttpContext在ASP.net MVC中为n

public JsonResult SomeControllerAction() {

    //The current method has the HttpContext just fine
    bool currentIsNotNull = (this.HttpContext == null); //which is false    

    //creating a new instance of another controller
    SomeOtherController controller = new SomeOtherController();
    bool isNull = (controller.HttpContext == null); // which is true

    //The actual HttpContext is fine in both
    bool notNull = (System.Web.HttpContext.Current == null); // which is false        

}

我注意到控制器上的HttpContext不是“实际的”HttpContext，你会发现System.Web.HttpContext.Current。

有没有办法手动填充控制器上的HttpContextBase？或者更好的方法来创建一个Controller的实例？