(수정중)org.springframework.transaction.UnexpectedRollbackException

org.springframework.transaction.UnexpectedRollbackException: Transaction silently rolled back because it has been marked as rollback-only

참고

• https://ws-pace.tistory.com/m/138
• https://velog.io/@melodie104/SpringBoot-%ED%85%8C%EC%8A%A4%ED%8A%B8%EC%99%80-Rollback