build.gradle dependencies { implementation 'org.springframework.boot:spring-boot-starter-web' testImplementation 'org.springframework.boot:spring-boot-starter-test' runtimeOnly 'org.mariadb.jdbc:mariadb-java-client' } application.properties spring.datasource.driver-class-name=org.mariadb.jdbc.Driver spring.datasource.url=jdbc:mariadb://localhost:3306/(DB이름) spring.datasource.username=(id) spring..