Spring安全性：期望只为类型接口org.springframework.security.authentication.AuthenticationManager找到一个bean。

Question

I am having below code in Myconfig class which extends WebSecurityConfigurerAdapter .

I am getting statcktrace as Caused by:

java.lang.IllegalArgumentException: Expecting to only find a single bean for type interfacorg.springframework.security.authentication.AuthenticationManager, but found [authenticationManagerBean, providerManager].

@Bean(name="preAuthFilter")
    public SSOCookieFilter preAuthFilter() throws Exception {
        SSOCookieFilter cookieFilter=   new SSOCookieFilter();
        cookieFilter.setAuthenticationManager(authenticationManagerBean());
        return cookieFilter;
    }

    @Bean(name = "preAuthProvider")
    public PreAuthenticatedAuthenticationProvider getPreAuthProvider() {
        PreAuthenticatedAuthenticationProvider preAuthenticatedAuthenticationProvider = new PreAuthenticatedAuthenticationProvider();
         preAuthenticatedAuthenticationProvider.setPreAuthenticatedUserDetailsService(new PreAuthenticatedGrantedAuthoritiesUserDetailsService());
         return preAuthenticatedAuthenticationProvider;
    }

    @Bean
    @Override
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }

I have already tried few links from stackoverflow which suggested to have @qualifier but my bad it doesn't work(logically it should work as method name is considered as bean id).

Please help.

Thanks in advance

Answer 1

The exception message indicates that a bean named providerManager bean is instantiated by Spring. Make sure you do not have any other AuthenticationManager classes annotated with @Bean or have them setup in your xml confiuration file.

Why do you @Override authenticationManagerBean() ? If this method is already annotated with @Bean in the super class, this could be your problem.