Spring Framework · question
Q.05 of 49
What is @Autowired and how does it work?
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Re-explain
@Autowired enables automatic dependency injection. Spring automatically injects matching beans by type. It can be used on:
- Constructors
- Setter methods
- Fields
- Method parameters
@Service
public class UserService {
@Autowired
private UserRepository userRepository; // Field injection
@Autowired
public UserService(UserRepository userRepository) { // Constructor injection
this.userRepository = userRepository;
}
}
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