Question

Good day. Having read about Model 2 architecture I got confused about some points.
For example my controller servlet url-pattern is '*.perform'.

1. How do I access the database and put the bean into the session if my jsp url does not correspond the servlet url-pattern?
2. If I’ve done the action, why do I use forward? The url remains the same 'actionName.perform'
3. How should be the app designed for the servlet to process every page and forward to the corresponding JSP without processing it again?

Answer 1

1. The point of a front controller is that it intercepts all requests. You should never send a request to a JSP directly. Always to some *.perform URL. All your links and forms must poiunt to an *.perform URL.
2. The forward gives the control, at server-side to another resource. Once the controller servlet has finished its job, it gives the control to the JSP, which generates the markup. This all happens at server-side, and the browser knows nothing about this. It’s absolutely normal for the URL to remain the same.
3. See 1. I don’t understand what you mean by “without processing it again”, though.