Auditing (생성일, 수정일, 생성자, 수정자)

@EntityListeners(AuditingEntityListener.class)
@MappedSuperclass
public abstract class BaseEntity {
    @CreatedDate
    @Column(updatable = false)
    private LocalDateTime createdDate;
    
    @LastModifiedDate
    private LocalDateTime lastModifiedDate;
    
    @CreatedBy
    @Column(updatable = false)
    private String createdBy;
    
    @LastModifiedBy
    private String lastModifiedBy;
}

 

등록자, 수정자를 처리해주는 AuditorAware 스프링 빈 등록

DataJpaApplication에 추가함.

@SpringBootApplication
public class DataJpaApplication {

	public static void main(String[] args) {
		SpringApplication.run(DataJpaApplication.class, args);
	}

	// 추가한 부분
	@Bean
	public AuditorAware<String> auditorProvider() {
		return () -> Optional.of(UUID.randomUUID().toString());
	}
}

실무에서는 세션 정보나, 스프링 시큐리티 로그인 정보에서 ID를 받음

 

참고: 실무에서 대부분의 엔티티는 등록시간, 수정시간이 필요하지만, 등록자, 수정자는 없을 수도 있다.

그래서 다음과 같이 Base 타입을 분리하고, 원하는 타입을 선택해서 상속한다.

 

public abstract class BaseTimeEntity {
    @CreatedDate
    @Column(updatable = false)
    private LocalDateTime createdDate;
    
    @LastModifiedDate
    private LocalDateTime lastModifiedDate;
}

public abstract class BaseEntity extends BaseTimeEntity {
    @CreatedBy
    @Column(updatable = false)
    private String createdBy;
    
    @LastModifiedBy
    private String lastModifiedBy;
}