spring中的spring-security-oauth2和spring-security-oauth2-core有什么区别？spring-security-oauth2 是否被 spring-security-oauth2-core 取代？
spring-security-oauth2 发布链接：http ://repo.spring.io/release/org/springframework/security/oauth/spring-security-oauth2/
spring-security-oauth2-core 发布链接 http://repo.spring.io/release/org/springframework/security/spring-security-oauth2-core/