test
Autofac
http://www.cnblogs.com/hbq-fczzw/archive/2012/03/21/2410705.html 中文版
http://code.google.com/p/autofac/wiki/Mvc3Integration 英文版
Tip 45 – How to swap EF metadata at runtime.
http://blogs.msdn.com/b/alexj/archive/2009/11/29/tip-45-how-to-swap-ef-metadata-at-runtime.aspx