Empty response body on request validation Error (Apache CXF, JAX
I am using Apache CXF, JAX-RS and JSR-303 validation. Validation works properly, for invalid request objects I have HTTP 400 response and validation errrors in logs, but my response body is empty. How to have details about validation errors in response body?
I use Spring Boot 1.5.6, Apache CXF 3.1.2.
I setup CXF in java configuration
@Bean
BeanValidationFeature commonValidationFeature() {
return new BeanValidationFeature();
}
@Bean
ValidationExceptionMapper exceptionMapper() {
return new ValidationExceptionMapper();
}
@Bean
JAXRSParameterNameProvider parameterNameProvider() {
return new JAXRSParameterNameProvider();
}
@Bean
BeanValidationProvider validationProvider() {
return new BeanValidationProvider(parameterNameProvider());
}
@Bean
JAXRSBeanValidationInvoker validationInvoker() {
final JAXRSBeanValidationInvoker validationInvoker = new JAXRSBeanValidationInvoker();
validationInvoker.setProvider(validationProvider());
return validationInvoker;
}
@Bean
JAXRSBeanValidationFeature validationFeature() {
final JAXRSBeanValidationFeature feature = new JAXRSBeanValidationFeature();
feature.setProvider(validationProvider());
return feature;
}
then I use those beans to setup org.apache.cxf.endpoint.Server
JAXRSServerFactoryBean serverFactoryBean = new JAXRSServerFactoryBean();
serverFactoryBean.setProvider(new JacksonJsonProvider(objectMapper));
serverFactoryBean.setProvider(exceptionMapper());
serverFactoryBean.setFeatures(Arrays.asList(commonValidationFeature(),
swagger2Feature()));
serverFactoryBean.setBus(bus);
serverFactoryBean.setInvoker(validationInvoker());
serverFactoryBean.setServiceBeans(Collections.singletonList(myApiImplementation));
return serverFactoryBean.create();
How to have details about validation errors in response body? Are there some sensible defaults (like in Spring MVC?) Can I customize error response for validation errors?
Default implementation of org.apache.cxf.jaxrs.validation.ValidationExceptionMapper is not providing details about validation errors in response body, but this can be changed easily. When creating new instance of ValidationExceptionMapper one just need to .setAddMessageToResponse(true);
Then details about validation errors are present in response body.
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