javax.servlet.ServletException: Cannot find message resources under key org.apache.str

我部署好书上一个例子，打开浏览器测试的时候，遇到如下异常：
  exception
 
  javax.servlet.ServletException: Cannot find message resources under key org.apache.struts.action.MESSAGE
  org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:867)
  org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:800)
  org.apache.jsp.login_jsp._jspService(login_jsp.java:86)
  org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133)
  javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
  org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311)
  org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
  org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
  javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
 
 
  root cause
 
  javax.servlet.jsp.JspException: Cannot find message resources under key org.apache.struts.action.MESSAGE
  org.apache.struts.util.RequestUtils.retrieveMessageResources(RequestUtils.java:1103)
  org.apache.struts.util.RequestUtils.message(RequestUtils.java:1043)
  org.apache.struts.taglib.bean.MessageTag.doStartTag(MessageTag.java:294)
  org.apache.jsp.login_jsp._jspx_meth_bean_message_0(login_jsp.java:101)
  org.apache.jsp.login_jsp._jspService(login_jsp.java:72)
  org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133)
  javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
  org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311)
  org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
  org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
  javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
 
  可是我在我的struts程序的/WEB-INF/classes/com/wiley/放了ApplicationResources.properties文件
  而且在struts-config.xml里也有：
  <message-resources
  parameter="com.wiley.ApplicationResources"/>
  请问是什么原因？？请大家指教

------解决方法--------------------------------------------------------
<message-resources parameter="com/wiley/ApplicationResources"/>
 
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