ASP. net mvc request process

ASP. net mvc request process

I. Application startup

1. Application_Start method, program startup

　　

2. Use the RegisterRoutes method to register a route

　　

3. The System. Web. Mvc. RouteCollectionExtensions. MapRoute method shows the MvcRoutehandler object.

　　

Ii. Request to enter

You can find "" in "$ \ Windows \ Microsoft. NET \ Framework \ version \ Config \ Web. config ""

The request passes through the System. Web. Routing. UrlRoutingModule. Init method.

1. System. Web. Routing. UrlRoutingModule. Init Method

　　

2. System. Web. Routing. UrlRoutingModule. PostResolveRequestCache Method

　　

3. System. Web. Routing. RouteCollection. GetRouteData Method

　　

4. System. Web. Routing. Route. GetRouteDara Method

　　

Here this. RouteHandler is an instantiated MvcRouteHandler object in the first part. Now we have obtained the MvcRouteHandler instance. continue to the next step and return Step 1:

2. System. Web. Routing. UrlRoutingModule. PostResolveRequestCache Method

　　

3. The System. Web. Mvc. MvcRouteHandler. GetHttpHandler method returns the MvcHandler object.

　　

4. System. Web. Mvc. MvcHandler Construction Method

　　

If this class implements the IHttpHandler interface, you have to check the ProcessRequest method.

5. System. Web. Mvc. MvcHandler. ProcessRequest Method

　　

6. System. Web. Mvc. MvcHandler. ProcessRequestInit Method

　　

Return to Step 1

5. System. Web. Mvc. MvcHandler. ProcessRequest Method

　　

6. System. Web. Mvc. ControllerBase. Excete Method

　　

7. System. Web. Mvc. Controller. ExcuteCore Method

　　

8. System. Web. Mvc. Controller. ActionInvoker attributes

　　

9. System. Web. Mvc. Controller. CreateActionInvoker Method

　　

Return the instance that implements the IActionInvoker interface, and return step 1.

7. System. Web. Mvc. Controller. ExcuteCore Method

　　

8. System. Web. Mvc. ControllerActionInvoker. InvokeAction Method

　　

9. System. Web. Mvc. ControllerActionInvoker. InvokeActionResult Method

　　

10. The System. Web. Mvc. ActionResult class encapsulates the results of an operation method.

　　

Let's take a look at the override of the derived class of the ExcuteResult ActionResult:

　　

Choose the ExcuteResult method in the ViewResultBase class.

11. System. Web. Mvc. ViewResultBase. ExcuteResult Method

　　

12. System. Web. Mvc. ViewResult. ExcuteResult Method

　　

13. System. Web. Mvc. ViewEngineCollection. FindView Method

　　

14. System. Web. Mvc. VirtualPathProviderViewEngine. FindView Method

　　

Return to step 2

13. System. Web. Mvc. ViewEngineCollection. FindView Method

　　

14. System. Web. Mvc. ViewEngineCollection. Find Method

　　

15. System. Web. Mvc. ViewEngineCollection. Find Method

　　

So far, we have obtained the ViewEngineResult object. ViewEngineResult indicates the result of locating the view engine.

Now let's go back to Step 1 and continue.

11. System. Web. Mvc. ViewResultBase. ExcuteResult Method

　　

12. System. Web. Mvc. BuildManagerCompiledView. Render Method

　　

13. The System. Web. Mvc. RazorView. RenderView method is used to display the page using the Razor view engine.