Prevent Spring Boot from registering a servlet filter

Question

I have a Spring Boot WebMVC application, and a bean that inherits from AbstractPreAuthenticatedProcessingFilter which I am explicitly adding to a specific spot in the Spring

Answer 1

If you want to unregister all filters at one time here's my trick:

public class DefaultFiltersBeanFactoryPostProcessor implements BeanFactoryPostProcessor {

    @Override
    public void postProcessBeanFactory(ConfigurableListableBeanFactory bf)
            throws BeansException {
        DefaultListableBeanFactory beanFactory = (DefaultListableBeanFactory) bf;

        Arrays.stream(beanFactory.getBeanNamesForType(javax.servlet.Filter.class))
                .forEach(name -> {

                    BeanDefinition definition = BeanDefinitionBuilder
                            .genericBeanDefinition(FilterRegistrationBean.class)
                            .setScope(BeanDefinition.SCOPE_SINGLETON)
                            .addConstructorArgReference(name)
                            .addConstructorArgValue(new ServletRegistrationBean[]{})
                            .addPropertyValue("enabled", false)
                            .getBeanDefinition();

                    beanFactory.registerBeanDefinition(name + "FilterRegistrationBean",
                            definition);
                });
    }
}

A bit more about this technique - here.