类AuthenticationManagerBuildier中的方法不能应用于给定类型

Question

我正在尝试使用spring安全性将密码加密到数据库中，但是我收到了错误。当我尝试编码密码时，我的spring安全类返回错误。我不知道我哪里出错了。

此图显示安全类抛出的错误：

SecurityConfig.java

@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {

@Autowired  
private UserService userService;

protected void configure(AuthenticationManagerBuilder auth) throws Exception {
    auth.userDetailsService(userService).passwordEncoder(passwordEncoder());
  }

@Bean
public PasswordEncoder passwordEncoder() {
    return new BCryptPasswordEncoder();
   }
}

ApplicationAuthenticationSuccessHandler.java

public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response, Authentication
        authentication) throws IOException, ServletException {
    User user = (User) authentication.getPrincipal();
    request.getSession().setAttribute("authenticated_user", user);
    super.onAuthenticationSuccess(request, response, authentication);
}

UserService.java

@Service
@Transactional
public class UserService {
@Autowired
private UserRepository userRepository;

@Autowired
private PasswordEncoder passwordEncoder;

public Response createUser(User user) {
      if( user == null || user.getId() == null){
          throw new ResourceNotFoundException("Empty", "Missing Data Exception");
      } else {
          user.setPassword(passwordEncoder.encode(user.getPassword()));
          userRepository.save(user);
          return new Response(user.getId(), "Customer Created Successfully");
      }

 }

User.java

@Entity
public class User implements Serializable, UserDetails {
@NotBlank
private String surname;

@NotBlank
@Size(min = 5, max = 20, message = "Please enter between {min} and {max} characters.")
private String phoneNumber;

@NotBlank
@Size(min = 5, max = 100, message = "Please enter between {min} and {max} characters.")
private String password;
}

RegisterController.java

@RestController
public class RegisterController {

@Autowired
private UserService userService;

@RequestMapping(method = RequestMethod.POST, value = "/users")
public Response createUser(@Valid @RequestBody User user){
    return userService.createUser(user);

   }
 }