SpringMVC 异常统一处理

参考：http://www.open-open.com/lib/view/open1413639779887.html

http://blog.csdn.net/ufo2910628/article/details/40399539

http://blog.csdn.net/mr__fang/article/details/9092511

http://gaojiewyh.iteye.com/blog/1297746