[Spring] No identifier specified for entity 에러 해결

No identifier specified for entity 에러 해결

이슈

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]:
Invocation of init method failed; nested exception is org.hibernate.AnnotationException: No identifier specified for entity: 엔티티명
 at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1786) ~[spring-beans-5.3.8.jar:5.3.8]

해결

• @Id 어노테이션이 누락되어 발생한 에러
• @Id 를 추가하여 해결

@Data
@RequiredArgsConstructor
@NoArgsConstructor(access = AccessLevel.PRIVATE, force = true)
@Entity
@Table(name = "ingredient")
public class Ingredient {

    @Id
    private final String id;
    private final String name;
    private final Type type;
}

교훈

• 해당 클래스의 @Id 값을 빼먹지 말자