springboot整合knife4j报错Failed to start bean ‘documentationPluginsBootstrapper‘

最新推荐文章于 2024-11-20 22:00:43 发布

原创最新推荐文章于 2024-11-20 22:00:43 发布 · 433 阅读

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#spring boot #java #spring

该代码实现了一个BeanPostProcessor，用于在初始化后定制Springfox的HandlerMappings。它检查bean是否是WebMvcRequestHandlerProvider或WebFluxRequestHandlerProvider类型，然后过滤并修改handlerMappings列表，确保没有null的PatternParser。

@Bean
public static BeanPostProcessor springfoxHandlerProviderBeanPostProcessor() {
    return new BeanPostProcessor() {

        @Override
        public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
            if (bean instanceof WebMvcRequestHandlerProvider || bean instanceof WebFluxRequestHandlerProvider) {
                customizeSpringfoxHandlerMappings(getHandlerMappings(bean));
            }
            return bean;
        }

        private <T extends RequestMappingInfoHandlerMapping> void customizeSpringfoxHandlerMappings(List<T> mappings) {
            List<T> copy = mappings.stream()
                    .filter(mapping -> mapping.getPatternParser() == null)
                    .collect(Collectors.toList());
            mappings.clear();
            mappings.addAll(copy);
        }

        @SuppressWarnings("unchecked")
        private List<RequestMappingInfoHandlerMapping> getHandlerMappings(Object bean) {
            try {
                Field field = ReflectionUtils.findField(bean.getClass(), "handlerMappings");
                field.setAccessible(true);
                return (List<RequestMappingInfoHandlerMapping>) field.get(bean);
            } catch (IllegalArgumentException | IllegalAccessException e) {
                throw new IllegalStateException(e);
            }
        }
    };
}