Spring源码地址，通过svn导入
Spring SVN url

Spring3.0 源码 https://github.com/SpringSource/spring-framework

Spring2.5 及以下版本 https://src.springframework.org/svn/spring-maintenance/

Spring Security https://src.springframework.org/svn/spring-security/

Struts2 SVN : http://svn.apache.org/repos/asf/struts/struts2/