你了解spring多少

Spring 官网上有这么多，好多没见过，汗....
     * Spring Framework
    * Spring Web Flow
    * Spring BlazeDS Integration
    * Spring Web Services
    * Spring Roo
    * Spring Security (Acegi Security)
    * Spring Batch
    * Spring Integration
    * Spring AMQP
    * Spring Gemfire
    * Spring Payment Services
    * SpringSource dm Server (Eclipse Virgo)
    * SpringSource dm Server Tools
    * SpringSource Bundlor
    * Spring Dynamic Modules For OSGi(tm) Service Platforms (Eclipse Gemini)
    * Spring LDAP
    * Spring IDE
    * Spring Extensions
    * Spring Rich Client
    * Spring .NET
    * Spring BeanDoc