[JPA] Spring Data JPA와 Querydsl (feat. Spring MVC)

EntityListener @PrePersist @PostPersist @PreUpdate @PostUpdate @PreRemove @PostRemove @PostLoad AttributeConverter @Converter class SnackNutrientConverter : AttributeConverter { private val mapper = jacksonObjectMapper() override fun convertToDatabaseColumn(attribute: SnackNutrient): String { return mapper.writeValueAsString(attribute) } override fun convertToEntityAttribute(dbData: String): Sna..