4.0.0 springboot-jdbc-mysql org.springframework.boot spring-boot-starter-parent 2.3.6.RELEASE 2.7.0 org.springframework.boot spring-boot-starter-web org.springframework.boot spring-boot-starter-jdbc mysql mysql-connector-java 8.0.21 io.springfox springfox-swagger2 ${swagger.version} io.springfox springfox-swagger-ui ${swagger.version} com.github.xiaoymin knife4j-spring-boot-starter 2.0.4