Bean Validation 기반 계층별 DTO 분리로 API 안정성 및 데이터 무결성 확보
OrderHub Day 4: Bean Validation + Clean DTOs (Spring Boot)
OrderHub Day 4: Bean Validation + Clean DTOs (Spring Boot)
Spring Boot Validation in Kotlin with @field
@NotBlank vs @Column(nullable = false) vs @NotNull — Which one should you use?