我的代码：

 <default-action-ref name="index"></default-action-ref>

 <action name="index">

<result>/index.jsp</result>

网页报错：

Struts Problem Report

Struts has detected an unhandled exception:

Messages:    

com.imocc.action.adddaAction

Unable to instantiate Action, com.imocc.action.adddaAction, defined for 'addda' in namespace '/'com.imocc.action.adddaAction

File:    org/apache/catalina/loader/WebappClassLoader.java    

Line number:    1,358