更新时，未在返回的实体上设置标记为updatable = false的spring数据审核字段

Question

I'm using Spring Data's annotations to add auditing data to my entities when they are saved or updated. When I create the entity the createdBy , createdDate , lastModifiedBy and lastModifiedDate get set on the object returned by repository.save() .

ResourceEntity(id=ebbe1f3d-3359-4295-8c83-63eab21c4753, createdDate=2018-09-07T21:11:25.797, lastModifiedDate=2018-09-07T21:11:25.797, createdBy=5855070b-866f-4bc4-a18f-26b54f896a4b, lastModifiedBy=5855070b-866f-4bc4-a18f-26b54f896a4b)

Unfortunately, when I call repository.save() to update an existing entity the object returned does not have the createdBy and createdDate set.

 ResourceEntity(id=ebbe1f3d-3359-4295-8c83-63eab21c4753, createdDate=null, lastModifiedDate=2018-09-07T21:12:01.953, createdBy=null, lastModifiedBy=5855070b-866f-4bc4-a18f-26b54f896a4b)

All the fields are set correctly in the database and a call to repository.findOne() outside of my service class returns an object with all the fields set correctly.

ResourceEntity(id=ebbe1f3d-3359-4295-8c83-63eab21c4753, createdDate=2018-09-07T21:11:25.797, lastModifiedDate=2018-09-07T21:12:01.953, createdBy=5855070b-866f-4bc4-a18f-26b54f896a4b, lastModifiedBy=5855070b-866f-4bc4-a18f-26b54f896a4b)

But if I call repository.findOne() in the service right after calling repository.save() to update the entity I also get an object back with createdBy and createdDate set to null.

Here is my entity:

@Entity(name = "resource")
@EntityListeners(AuditingEntityListener.class)
@Table(name = "resource")
@Data
@EqualsAndHashCode(of = "id")
@Builder
@AllArgsConstructor
@NoArgsConstructor(access = AccessLevel.PRIVATE)
public class ResourceEntity {

@Id
@org.hibernate.annotations.Type(type = "org.hibernate.type.PostgresUUIDType")
private UUID id;

@CreatedDate
@Column(nullable = false, updatable = false)
private LocalDateTime createdDate;

@LastModifiedDate
private LocalDateTime lastModifiedDate;

@CreatedBy
@Column(nullable = false, updatable = false)
@org.hibernate.annotations.Type(type = "org.hibernate.type.PostgresUUIDType")
private UUID createdBy;

@LastModifiedBy
@org.hibernate.annotations.Type(type = "org.hibernate.type.PostgresUUIDType")
private UUID lastModifiedBy;
}

Here is my service:

@Component
public class ResourceService {
@Autowired
private ResourceRepository resourceRepository;

public ResourceEntity createResource(ResourceEntity resourceEntity) {
    return saveResource(resourceEntity);
}

public ResourceEntity updateResource(ResourceEntity resourceEntity) {
    return saveResource(resourceEntity);
}

public ResourceEntity getResource(UUID resourceId) {
    return resourceRepository.findOne(resourceId);
}

private ResourceEntity saveResource(ResourceEntity resourceEntity) {
    ResourceEntity savedResourceEntity = resourceRepository.save(resourceEntity);
    return savedResourceEntity;
}
}

Here is my test:

def "Test update"() {
    given:
    UUID id = aRandom.uuid()
    Resource resource = aRandom.resource().id(id).build()
    Resource savedResource = resourceClient.createResource(resource)

    when:
    Resource updatedResource = aRandom.resource().id(id).build()
    updatedResource = resourceClient.updateResource(updatedResource)

    then:
    Resource result = resourceClient.getResource(id)
    assert result.id == updatedResource.id
    assert result.createdBy == updatedResource.createdBy
    assert result.creationDate == updatedResource.creationDate
    assert result.lastModifiedBy == updatedResource.lastModifiedBy
    assert result.lastModifiedDate == updatedResource.lastModifiedDate
}

Answer 1

I tried before like this when i need to add audit info.

I have a DataConfig class like this.

@Configuration
@EnableJpaAuditing
public class DataConfig {

    @Bean
    public AuditorAware<UUID> auditorProvider() {
        return new YourSecurityAuditAware();
    }

    @Bean
    public DateTimeProvider dateTimeProvider() {
        return () -> Optional.of(Instant.from(ZonedDateTime.now()));
    }
}

Now you need AuditorAware class to get audit info. So this class will be like this ;

public class XPorterSecurityAuditAware implements AuditorAware<UUID> {

    @Override
    public Optional<UUID> getCurrentAuditor() {
        //you can change UUID format as well
        return Optional.of(UUID.randomUUID());
    }
}

Hope this will help you.