Building Applications with Spring 5 and Vue.js 2

Implementing UserDetailsService

We will implement UserDetailsService inside the existing UserApplicationServiceImpl and let's change the UserApplicationService interface to extend UserDetailsService, as shown here:

public interface UserApplicationService extends UserDetailsService {  ...}

Here is the change to UserApplicationServiceImpl:

...public class UserApplicationServiceImpl implements UserApplicationService {  ...  @Autowired  private UserRepository userRepository;  @Override  public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {    if (StringUtils.isEmpty(username)) {      throw new UsernameNotFoundException("No user found");    }    User user;    if (username.contains("@")) { user = userRepository.findByEmailAddress(username); ...