Tell us about your experience using the Spring framework in projects

In projects, I used Spring for creating RESTful services and managing dependencies through the Spring IoC container. I applied Spring Boot for quick application startup with minimal configuration. I used Spring Data JPA for database interactions, which greatly simplified repository implementation.

Example of a simple controller in Spring Boot:

@RestController
@RequestMapping("/api/users")
public class UserController {

    private final UserRepository userRepository;

    public UserController(UserRepository userRepository) {
        this.userRepository = userRepository;
    }

    @GetMapping
    public List<User> getAllUsers() {
        return userRepository.findAll();
    }
}

Also familiar with security configuration via Spring Security and using profiles for different environments.