How can I customize the AuditingHandler injected by Spring-Data when using Auditing?
I met the same question.
The short version
You have to register jpaAuditingHandler
bean definition using BeanDefinitionRegistry
.
The long version
the org.springframework.data.jpa.domain.support.AuditingEntityListener
is a special class which mixed in with aspectj when compiling. see here
It need a bean definition to work. see the spring framework document.
the org.springframework.data.jpa.repository.config.EnableJpaAuditing
you are using will register the bean definition with auditingHandler bind to a jpaAuditingHandler
bean. It also will register the jpaAuditingHandler
bean definition.
If you add a jpaAuditingHandler
using @Component, it won't work because Spring prefer another one. see org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader#loadBeanDefinitionsForConfigurationClass
So you have to register your bean definition using BeanDefinitionRegistry
.
public class jpaAuditingHandlerRegistrar implements ImportBeanDefinitionRegistrar { @Override public void registerBeanDefinitions(AnnotationMetadata importingClassMetadata, BeanDefinitionRegistry registry) { registry.registerBeanDefinition("jpaAuditingHandler", BeanDefinitionBuilder .rootBeanDefinition(JpaAuditingHandler.class) .addConstructorArgReference("jpaMappingContext") .getBeanDefinition()); }}
and add @Import(JpaAuditingHandlerRegistrar.class)
to your Configuration class
@SpringBootApplication@EnableJpaAuditing@Import(JpaAuditingHandlerRegistrar.class)public class Application {
I put sample code https://github.com/macdao/customize-auditing-handler