Modifying the OAuth2ClientAuthenticationProcessingFilter in Spring Boot

问题

I'd like to modify the OAuth2ClientAuthenticationProcessingFilter which is created by the @EnableOAuth2Sso configuration in Spring Boot 1.3.2. As far as I can tell, the OAuth2ClientAuthenticationProcessingFilter class is constructed internally without any application context wiring. Is there a way to do this?

回答1:

Not sure this is the best way of doing it, but you can do this with a BeanPostProcessor:

public static class DefaultRolesPrefixPostProcessor implements BeanPostProcessor, PriorityOrdered {

        @Override
        public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
            if (bean instanceof FilterChainProxy) {

                FilterChainProxy chains = (FilterChainProxy) bean;

                for (SecurityFilterChain chain : chains.getFilterChains()) {
                    for (Filter filter : chain.getFilters()) {
                        if (filter instanceof OAuth2ClientAuthenticationProcessingFilter) {
                            OAuth2ClientAuthenticationProcessingFilter oAuth2ClientAuthenticationProcessingFilter = (OAuth2ClientAuthenticationProcessingFilter) filter;
                            oAuth2ClientAuthenticationProcessingFilter
                                    .setAuthenticationSuccessHandler(authenticationSuccessHandler());
                        }
                    }
                }
            }
            return bean;
        }
    }

来源：https://stackoverflow.com/questions/35617718/modifying-the-oauth2clientauthenticationprocessingfilter-in-spring-boot