How To Inject AuthenticationManager using Java Configuration in a Custom Filter

Question

I m using Spring Security 3 2 and Spring 4 0 1  I m working on converting an xml config into a Java config  When I annotate AuthenticationManager with  Autowired in my Filter  I m getting an exception   Caused by  org springframework beans factory NoSuchBeanDefinitionException  No qualifying bean of type  org springframework security authentication AuthenticationManager  found for dependency  expected at least 1 bean which qualifies as autowire candidate for this dependency  Dependency annotations       I ve tried injecting AuthenticationManagerFactoryBean but that also fails with a similar exception   Here is the XML configuration I m working from   lt  xml version  1 0  encoding  UTF-8   gt   lt beans     gt       lt security authentication-manager id  authenticationManager  gt           lt security authentication-provider user-service-ref  userDao  gt               lt security password-encoder ref  passwordEncoder   gt           lt  security authentication-provider gt       lt  security authentication-manager gt        lt security http             realm  Protected API              use-expressions  true              auto-config  false              create-session  stateless              entry-point-ref  unauthorizedEntryPoint              authentication-manager-ref  authenticationManager  gt           lt security access-denied-handler ref  accessDeniedHandler   gt           lt security custom-filter ref  tokenAuthenticationProcessingFilter  position  FORM LOGIN FILTER   gt           lt security custom-filter ref  tokenFilter  position  REMEMBER ME FILTER   gt           lt security intercept-url method  GET  pattern   rest news     access  hasRole  user     gt           lt security intercept-url method  PUT  pattern   rest news     access  hasRole  admin     gt           lt security intercept-url method  POST  pattern   rest news     access  hasRole  admin     gt           lt security intercept-url method  DELETE  pattern   rest news     access  hasRole  admin     gt       lt  security http gt        lt bean class  com unsubcentral security TokenAuthenticationProcessingFilter            id  tokenAuthenticationProcessingFilter  gt           lt constructor-arg value   rest user authenticate   gt           lt property name  authenticationManager  ref  authenticationManager   gt           lt property name  authenticationSuccessHandler  ref  authenticationSuccessHandler   gt           lt property name  authenticationFailureHandler  ref  authenticationFailureHandler   gt       lt  bean gt    lt  beans gt    Here is the Java Config I m attempting   Configuration  EnableWebSecurity public class SecurityConfig extends WebSecurityConfigurerAdapter         Autowired     private UserDetailsService userDetailsService        Autowired     private PasswordEncoder passwordEncoder        Autowired     private AuthenticationEntryPoint authenticationEntryPoint        Autowired     private AccessDeniedHandler accessDeniedHandler        Override     protected void configure AuthenticationManagerBuilder auth  throws Exception           auth                  userDetailsService userDetailsService  passwordEncoder passwordEncoder               Override     protected void configure HttpSecurity http  throws Exception           http                  sessionManagement                        sessionCreationPolicy SessionCreationPolicy STATELESS                       and                    exceptionHandling                        authenticationEntryPoint authenticationEntryPoint                       accessDeniedHandler accessDeniedHandler                       and              TODO  Custom Filters           And this is the Custom Filter class  The line giving me trouble is the setter for AuthenticationManager   Component public class TokenAuthenticationProcessingFilter extends AbstractAuthenticationProcessingFilter          Autowired     public TokenAuthenticationProcessingFilter  Value   rest useAuthenticationManagerr authenticate   String defaultFilterProcessesUrl            super defaultFilterProcessesUrl                Override     public Authentication attemptAuthentication HttpServletRequest request  HttpServletResponse response  throws AuthenticationException  IOException  ServletException                        private String obtainPassword HttpServletRequest request            return request getParameter  password               private String obtainUsername HttpServletRequest request            return request getParameter  username                Autowired      Override     public void setAuthenticationManager AuthenticationManager authenticationManager            super setAuthenticationManager authenticationManager               Autowired      Override     public void setAuthenticationSuccessHandler AuthenticationSuccessHandler successHandler            super setAuthenticationSuccessHandler successHandler               Autowired      Override     public void setAuthenticationFailureHandler AuthenticationFailureHandler failureHandler            super setAuthenticationFailureHandler failureHandler

User · Answer

In addition to what Angular University said above you may want to use @Import to aggregate @Configuration classes to the other class (AuthenticationController in my case) :

@Import(SecurityConfig.class)
@RestController
public class AuthenticationController {
@Autowired
private AuthenticationManager authenticationManager;
//some logic
}

Spring doc about Aggregating @Configuration classes with @Import: link

User · Answer

Override method authenticationManagerBean in WebSecurityConfigurerAdapter to expose the AuthenticationManager built using configure AuthenticationManagerBuilder  as a Spring bean   For example       Bean name   BeanIds AUTHENTICATION MANAGER      Override    public AuthenticationManager authenticationManagerBean   throws Exception          return super authenticationManagerBean

[java] How To Inject AuthenticationManager using Java Configuration in a Custom Filter

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