backend com.ittim 1.0.0-SNAPSHOT 4.0.0 backend-admin 1.8 UTF-8 UTF-8 org.springframework.boot spring-boot-starter mysql mysql-connector-java com.alibaba druid-spring-boot-starter 1.1.21 com.ittim backend-common 1.0.0-SNAPSHOT com.github.whvcse easy-captcha 1.6.2