Interaction between forms and servlet?

Question

Web development

Good afternoon!
Suppose there are several forms on the page with different number of parameters. Does each form need its own servlet, or can it be "styled" all in one?
I will be grateful!

Answer 1

It would be more correct, of course, to arrange everything in one :)
According to the model-view-controller approach (one of the main web application design patterns ), such a servlet will be a controller . A single entry point makes it easy to control access to the application, pre-process the request, and route it to the right handlers.
This applies not only to the described case of a page with several forms, but also to the application as a whole. In particular, this is how the Spring and Struts frameworks work.

Answer 2

It would be more correct, of course, for each form to have its own servlet.
If in one, then you will have to get, say, one field from each form and check if they exist. And by this to understand from what form the request came. But in my opinion, this is a very clumsy performance.