Introduction to Controllers
Explore the role of controllers in Spring MVC to handle HTTP requests, process data via models, and render Thymeleaf views. Understand the use of annotations like @Controller and @GetMapping, and learn how controller methods define application routes. This lesson helps you grasp essential MVC concepts to build scalable and maintainable applications with Spring Boot and Thymeleaf.
We'll cover the following...
What are controllers?
In an MVC framework, a controller receives data (the input) via the view. It then processes the received data with the help of the model, and finally returns the processed data (the output) back to the view.
Controllers in Spring MVC are the glue between the view (which are Thymeleaf templates in our case) and the business logic.
Controllers in Spring
Spring uses the @Controller annotation to mark a class ...