http://blog.csdn.net/wojiaowo11111/article/details/51605213
http://blog.csdn.net/zhang854429783/article/details/6785574
http://crabboy.iteye.com/blog/339840
SpringMVC常用注解@Controller,@Service,@repository,@Component
原文：http://www.cnblogs.com/hyq0002013/p/6369149.html