#Spring
spring 3.0.x doc http://docs.spring.io/spring/docs/3.0.x/spring-framework-reference/html/
##spring mvc
ModelAttribute http://java.dzone.com/articles/using-spring-mvc%E2%80%99s
http://www.intertech.com/Blog/understanding-spring-mvc-model-and-session-attributes/
@transaction http://blog.jhades.org/how-does-spring-transactional-really-work/
http://www.ibm.com/developerworks/java/library/j-ts1/index.html
http://www.byteslounge.com/tutorials/spring-transaction-propagation-tutorial
http://www.byteslounge.com/tutorials/spring-transaction-isolation-tutorial
http://howtodoinjava.com/category/frameworks/java-spring-tutorials/