Introduction to Spring MVC
Spring Web MVC is the original web framework built specifically on top of the native Java Servlet API. The name "MVC" stands for Model-View-Controller, which is the foundational design pattern determining how the application separates logic.
Spring MVC Internal Flow
Spring Web MVC enforces a Front Controller architecture. A single centralized Java Servlet handles absolutely every distinct HTTP request entering the entire application cleanly.
Creating a Web App
To actually execute the MVC design pattern practically, you construct a Java class and decorate it with the extremely powerful @Controller annotation.
Spring MVC Validations
When users submit data explicitly via HTTP POST forms, you must strictly validate the input values structurally before evaluating database configurations securely.