spring官网
http://spring.io/
--->spring project--->点击github图标--->artifactory
--->进入到了https://repo.spring.io-->树形结构查看tree-->https://repo.spring.io/release
--->https://repo.spring.io/release/org/springframework/spring-core/
原文：http://www.cnblogs.com/jinhuazhe2013/p/4124969.html