@Bean public RequestMappingHandlerAdapter requestMappingHandlerAdapter() { RequestMappingHandlerAdapter adapter = createRequestMappingHandlerAdapter(); adapter.setMessageReaders(serverCodecConfigurer().getReaders()); adapter.setWebBindingInitializer(getConfigurableWebBindingInitializer()); adapter.setReactiveAdapterRegistry(webFluxAdapterRegistry()); ArgumentResolverConfigurer configurer = new ArgumentResolverConfigurer(); configureArgumentResolvers(configurer); adapter.setArgumentResolverConfigurer(configurer); return adapter; }