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/
