Struts2拦截器浅析第二个案例struts-authInterceptor的相关问题

我用的Eclipse，java8+struts2.3，代码相同，后台没反应，前台报

Struts Problem Report

Struts has detected an unhandled exception:

Messages:    

There is no Action mapped for namespace [/] and action name [login] associated with context path [/struts-authInterceptor].

Stacktraces

There is no Action mapped for namespace [/] and action name [login] associated with context path [/struts-authInterceptor]. - [unknown location]    

   com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:185)
   org.apache.struts2.impl.StrutsActionProxy.prepare(StrutsActionProxy.java:63)

。。。。。。