#7. Auditing 엔티티 공통 속성 공통화

Auditing : Spring Data Jpa 가 제공하며 엔티티가 저장 또는 수정될 때 자동으로 등록일, 수정일, 등록자, 수정자를 입력해줍니다. 

 

1. AuditorAware 인터페이스를 구현한 클래스를 생성합니다.

package won.shop.config;

import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;

import java.util.Optional;

public class AuditorAwareImpl implements org.springframework.data.domain.AuditorAware<String> {

    @Override
    public Optional<String> getCurrentAuditor() {
        Authentication authentication =
                SecurityContextHolder.getContext().getAuthentication();
        String userId = "";
        if(authentication != null){
            userId = authentication.getName();
        }
        return Optional.of(userId);
    }
}

2. Auditor 기능을 사용하기 위해 Config 파일 생성합니다. 

package won.shop.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.domain.AuditorAware;
import org.springframework.data.jpa.repository.config.EnableJpaAuditing;

@Configuration
@EnableJpaAuditing
public class AuditConfig {

    @Bean
    public AuditorAware<String> auditorProvider(){
        return new AuditorAwareImpl();
    }
}

3. BaseTimeEntity 를 생성해 등록,수정 시간용 도메인 생성

package won.shop.domain;

import jakarta.persistence.Column;
import jakarta.persistence.EntityListeners;
import jakarta.persistence.MappedSuperclass;
import lombok.Getter;
import lombok.Setter;
import org.springframework.data.annotation.CreatedDate;
import org.springframework.data.annotation.LastModifiedDate;
import org.springframework.data.jpa.domain.support.AuditingEntityListener;

import java.time.LocalDateTime;

@EntityListeners(value = {AuditingEntityListener.class})
@MappedSuperclass
@Getter
@Setter
public abstract class BaseTimeEntity {

    @CreatedDate
    @Column(updatable = false)
    private LocalDateTime regTime;

    @LastModifiedDate
    private LocalDateTime updateTime;

}

4. BaseEntitiy 생성, BaseTimeEntity를 상속받아 등록, 수정시간 과 등록,수정한 사람용 도메인생성

package won.shop.domain;

import jakarta.persistence.Column;
import jakarta.persistence.EntityListeners;
import jakarta.persistence.MappedSuperclass;
import lombok.Getter;
import lombok.Setter;
import org.springframework.data.annotation.CreatedBy;
import org.springframework.data.annotation.CreatedDate;
import org.springframework.data.annotation.LastModifiedBy;
import org.springframework.data.annotation.LastModifiedDate;
import org.springframework.data.jpa.domain.support.AuditingEntityListener;

import java.time.LocalDateTime;

@EntityListeners(value = {AuditingEntityListener.class})
@MappedSuperclass
@Getter
public abstract class BaseEntity extends BaseTimeEntity{

    @CreatedBy
    @Column(updatable = false)
    private String createdBy;

    @LastModifiedBy
    private String modifiedBy;

}

5. Member, Cart 등 기존 도메인에 상속시켜줍니다. 

 

@Entity
@Getter
@Setter
public class Member extends BaseEntity {
,,,


}