4.0.0 org.springframework.bootspring-boot-starter-parent4.0.9 studyoauth2-authorization1 21true org.springframework.bootspring-boot-starter-webmvc org.springframework.bootspring-boot-starter-security-oauth2-authorization-server org.springframework.bootspring-boot-starter-security-oauth2-client org.springframework.bootspring-boot-starter-security-oauth2-resource-server org.springframework.bootspring-boot-maven-plugin