ASP.NET MVC registration routing process source code analysis

Four objects of the routing module:

• Route(Routing rule object): Contains routing rules and routing Handler(the responsibility of the routing handler is to obtain the final processing Http request PrHandler)
• RouteData(Routing data)
• RouteCollection(Collection object of routing rules)
• RouteTable(Routing table)

Between the seventh and eighth events: first determine whether there is a specific PrHandlerprocessing of this Http request specified in the context . If it is not specified, then create a page or a general processing program based on the URL address.

In MVC: by URLRoutingModelregistering the seventh event, that is, when the pipeline executes to the seventh event, URLRoutingModelthe Init()method HttpModuleinside is executed , and the time response method inside is executed . In this event

The response method is to redirect the current context to an existing one PrHandler.