# application.ymlapp: name: MyApplication version: 1.0 features: enableFeatureX: true enableFeatureY: false #kotlin - 클래스는 위의 설정 값으로 매핑됨@ConfigurationProperties("app")class AppProperties { lateinit var name: String lateinit var version: String lateinit var features: Features class Features { var enableFeatureX: Boolean = false var enableFeatureY: Boolean = f..