Loading class 'com.mysql.jdbc.Driver'. This is deprecated.
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
application.properties 파일에서 spring.datasource.driver-class-name 부분을 com.mysql.cj.jdbc.Driver로 바꿔준다.
application.properties
spring.datasource.driver-class-name
com.mysql.cj.jdbc.Driver