原文地址：http://www.ogrigas.eu/spring/2009/12/diagram-of-spring-3-0-module-dependencies
As Spring 3.0.0.RELEASE is finally out, I decided to draw a diagram that shows interdependency of modules comprising the latest Spring Framework. For the sake of simplicity, some direct dependencies have been omitted if they can be deduced transitively. Optional dependencies are not displayed.
The idea of this diagram is to get a bird’s-eye view of Spring Framework architecture. Also, if you use Maven’s central repository and include, e.g. spring-tx in your project, you should understand that you’re also including spring-context, spring-aop, spring-expression, spring-beans and spring-core.