9 What is Spring Web MVC скачать в хорошем качестве

9 What is Spring Web MVC

Ah nice, Spring Web MVC is a big-ticket interview topic. Let’s make it simple, structured, and answer-ready. 😄 ________________________________________ 🔹 What is Spring Web MVC? Spring Web MVC is a module of the Spring Framework used to build web applications using the Model–View–Controller (MVC) design pattern. In simple words: It helps you create web applications and REST APIs by separating business logic, UI, and request handling. ________________________________________ 🔹 One-Line Interview Answer Spring Web MVC is a Spring framework module that provides an MVC architecture for building web applications and RESTful services. ________________________________________ 🔹 2-Line Strong Answer Spring Web MVC is a web framework based on the Model–View–Controller pattern that handles HTTP requests, maps them to controllers, and returns views or responses. It separates business logic, presentation, and request handling. ________________________________________ 🔹 How Spring MVC Works (High-Level Flow) 1. Client sends HTTP request 2. DispatcherServlet receives the request (Front Controller) 3. Finds the appropriate Controller 4. Controller processes request and returns Model + View (or JSON) 5. ViewResolver resolves the view 6. Response is sent back to client 🧠 Interview line: DispatcherServlet is the front controller in Spring MVC. ________________________________________ 🔹 Key Components (Very Important for Interview) • DispatcherServlet – Front Controller • Controller / @RestController – Handles requests • Model – Data • View – UI (JSP, Thymeleaf, etc.) • ViewResolver – Finds the correct view • HandlerMapping – Maps URL to controller ________________________________________ 🔹 Simple Example @Controller public class HomeController { @GetMapping("/home") public String home(Model model) { model.addAttribute("msg", "Hello Spring MVC"); return "home"; // view name } } Or REST: @RestController public class ApiController { @GetMapping("/api/hello") public String hello() { return "Hello API"; } } ________________________________________ 🔹 Why Use Spring MVC? • Clean separation of concerns • Easy request mapping • Supports REST APIs • Integrates with Spring IoC & DI • Powerful and industry standard ________________________________________ 🔹 One Smart Line to Impress Interviewer 😎 Spring MVC uses DispatcherServlet as a front controller to handle requests and follows the MVC pattern to separate concerns. ________________________________________ 🔹 Common Follow-up Questions Q: What is DispatcherServlet? 👉 Front controller that handles all incoming requests. Q: Difference between @Controller and @RestController? 👉 @Controller returns views, @RestController returns data (JSON/XML). ________________________________________ If you want, I can also give you: • Spring MVC architecture diagram (explained in words) • Difference between Spring MVC and Spring Boot • Common annotations list for interviews