application.properties 에서 기존꺼 주석하고 밑에거 붙여넣기 spring.datasource.driver-class-name=cohttp://m.mysql.cj.jdbc.Driver spring.datasource.url=jdbc:mysql://localhost:3306/sbb?serverTimezone=UTC&characterEncoding=UTF-8 spring.datasource.username=root spring.datasource.password=guro spring.jpa.show-sql=true spring.jpa.hibernate.ddl-auto=update spring.jpa.properties.hibernate.format_sql=true build.gradle에서 ..