[Spring Boot] 오류: "Failed to configure a DataSource: ‘url’ attribute is not..."

• 위와 같이 오류 메시지가 나올 때
• 해결방법:
  
  • 1. application.yml 파일에 아래와 같이 jdbc driver 관련 설정 추가

 datasource:
    username: at
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://127.0.0.1:3306/at?useUnicode=true&characterEncoding=utf8&autoReconnect=true&serverTimezone=Asia/Seoul&useOldAliasMetadataBehavior=true&zeroDateTimeNehavior=convertToNull

• 2. db 없이 우선 작업 할 경우 main 에다가 아래 @ 어노테이션을 넣주면 된다

@EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class, XADataSourceAutoConfiguration.class})

• 그외 solution 들:
  • https://www.yawintutor.com/failed-to-configure-a-datasource-failed-to-determine-a-suitable-driver-class/

Failed to configure a DataSource: ‘url’ attribute is not specified and no embedded datasource could be configured. Reason: F