struts2空指针 File: com/opensymphony/xwork2/ognl/SecurityMemberAccess.java Line number: 114
今天碰到一个很蛋疼的问题，在跟着视频学习struts2时，出现一个空指针异常，搞得我快要怀疑人生了（1）There is no Action mapped for namespace [/] and action name [hello] associated with context path [/jsp].（2）Messages: File
