Spring MVC Basics
Spring MVC, MVC architecture, DispatcherServlet, @Controller, ViewResolver, Model-View-Controller pattern
1Which annotation transforms a Java class into a Spring MVC controller?
Which annotation transforms a Java class into a Spring MVC controller?
Odpowiedź
@Controller marks a class as a Spring MVC controller that handles HTTP requests. It is a specialization of @Component and allows component scanning to automatically detect the controller. @RestController combines @Controller and @ResponseBody for REST APIs, while @RequestMapping defines URL mappings but doesn't declare a controller by itself.
2What is the main difference between @Controller and @RestController?
What is the main difference between @Controller and @RestController?
Odpowiedź
@RestController combines @Controller and @ResponseBody, meaning all methods automatically return serialized data (JSON/XML) instead of view names. With @Controller, you must add @ResponseBody to each method to return data. @RestController is designed for REST APIs, while @Controller is used for traditional web applications with view rendering.
3How to map a controller method to an HTTP POST request on /users URL?
How to map a controller method to an HTTP POST request on /users URL?
Odpowiedź
@PostMapping is the specialized annotation for mapping a method to POST requests on a specific URL. It's a shortcut for @RequestMapping(method = RequestMethod.POST). Other specialized annotations include @GetMapping, @PutMapping, @DeleteMapping, and @PatchMapping. This approach is more readable and concise than @RequestMapping with method attribute.
How to retrieve a path variable from a URL like /users/{id}?
Which annotation to use to automatically deserialize JSON from HTTP request body?
+17 pytań z rozmów
Inne tematy rekrutacyjne Spring Boot
Spring Core - IoC & DI
Spring Boot Auto-Configuration
Spring Boot Starters
Application Properties & YAML
Logging with SLF4J & Logback
Spring Boot DevTools
Spring REST Controllers
Request & Response Handling
Exception Handling
Bean Validation
Spring Data JPA Basics
JPA Entities & Relationships
JPA Queries
Spring Data Repositories
Spring Security Basics
Spring Boot Actuator
Unit Testing with JUnit & Mockito
Spring Boot Testing
Profiles & Environment
RestTemplate & WebClient
Async & Scheduling
Caching with Spring
Spring WebFlux (Reactive)
Spring Transactions
Advanced Authentication & Authorization
JWT & Stateless Security
OAuth2 & Authorization Server
Spring Boot & Docker
Microservices with Spring
Spring Cloud Config
Performance Optimization
GraalVM Native Images
Opanuj Spring Boot na następną rozmowę
Uzyskaj dostęp do wszystkich pytań, flashcards, testów technicznych, ćwiczeń code review i symulatorów rozmów.
Zacznij za darmo