What is MVC?
MVC stands for:
M → Model
V → View
C → Controller
It is a design pattern used to organize your code by separating concerns.
=> In Spring Boot, MVC helps structure web applications cleanly.
MVC in Spring Boot is a design pattern that separates an application into Model, View, and Controller. The Model handles data and business logic, while the View is responsible for displaying the user interface. The Controller acts as a bridge, receiving user requests and coordinating between Model and View. When a request comes in, the Controller processes it, interacts with the Model, and sends the result to the View. This separation keeps the code organized and easier to maintain. Overall, MVC improves scalability, readability, and development efficiency in web applications.
Why MVC is Used?
Without MVC, all code (logic + UI + data) gets mixed → messy
With MVC:
✔ Code is clean and organized
✔ Easy to maintain & debug
✔ Supports team development
✔ Reusable components
Components of MVC
1.Model (Data Layer)
Represents data + business logic
Usually includes:
=> Entity classes
=> Database interaction
Example:
class Student {
int id;
String name;
}
2.View (UI Layer)
What the user sees 👀
Can be:
-> HTML
-> JSP
-> Thymeleaf
Example:
<h1>Welcome Student</h1>
<p th:text="${name}"></p>
3.Controller (Request Handler)
=> Handles user requests
=> Connects Model and View
Example:
@RestController
public class StudentController {
@GetMapping("/student")
public String getStudent() {
return "Hello Student";
}
}
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