对每个页面请求执行检查（不是每个控制器操作）

Question

I have an external API check that I want to execute each time a user does requests a page on my site. However I don't want to execute the check every time an action is called - there are quite a lot of partial views, Html.Actions and ajax controller action calls in the views, and checking the API multiple times a page will slow the application down.

I've tried overriding OnActionExecuting in my base controller, but that obviously fires every time an action is called, meaning it will fire on partials, etc.

I've also tried implementing Application_ AcquireRequestState in global.asax but this is called multiple times per page, as well.

I was wondering if there was a way to only execute a block of code if there has been a full page request?

Answer 1

检查if (!ControllerContext.IsChildAction)

Answer 2

Set a bool saying that it has been executed to the HttpContext.Items collection. Check for the bool before executing the code.

The HttpContext.Items collection lives for the duration of a single request.