Where to place business logic within spring mvc?

Question

I do not know where to put the business logic in mvc spring, because I am new to this. I have an idea of ​​what to do, but due to lack of knowledge of spring, I do not know where to start. I would also like to ask if anyone knows where I can get a good tutorial on this or a complete Spring mvc web application example that has business logic on it? In any case, the business logic that I talked about is related to database processing :)

Answer 1

@Controllerclasses serve C from MVC . Note that the real controller is in Spring MVC DispatchServlet, which will use a specific class @Controllerto process the request URL.

@Serviceclasses should serve your level of service. Here you should put your business logic .

@Repositoryclasses should serve for your level of data access. Here you must place the CRUD logic: insert, update, delete, select.

@Service, @RepositoryAnd your classes are essential M from the MVC . JSP and other viewing technologies (e.g. JSP, Thymeleaf, etc.) will match V from MVC .

@Controller @Service . @Service @Service @Repository .

Answer 2

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Answer 3

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