使用s:action标签时出现的问题！但是只出现在某一部分，不知道怎么回事！！谁来帮解决下？谢谢啦

Question

ERROR (OgnlUtil.java:242)|An error occured
       java.beans.IntrospectionException: java.lang.Object not superclass of java.lang.Object
at java.beans.Introspector.<init>(Unknown Source)
at java.beans.Introspector.getBeanInfo(Unknown Source)
at java.beans.Introspector.getBeanInfo(Unknown Source)
at com.opensymphony.xwork2.util.OgnlUtil.getBeanInfo(OgnlUtil.java:351)
at com.opensymphony.xwork2.util.OgnlUtil.getPropertyDescriptors(OgnlUtil.java:305)
at com.opensymphony.xwork2.util.OgnlUtil.copy(OgnlUtil.java:239)
at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:107)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:143)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:121)
............

Answer 1

贴jsp和struts.xml和Action关键代码

Answer 2

 <s:action name="strutsadheng!publ_find_Youqing_All_void_yqlist" namespace="/Adheng" executeResult="false" />request.setAttribute("yqlist",  selfservice.findAll("from Youqing where  sx = 1 order by id",null));使用的是hibernate框架查询

Answer 3

<%@ page language="java" pageEncoding="utf-8"%>  
 
 <s:action name="strutsadheng!publ_find_Youqing_All_void_yqlist" namespace="/Adheng" executeResult="false" />
 
 <table width="970" border="0" align="center" cellpadding="0" cellspacing="0" style="border:1px solid #CCCCCC; margin-bottom:5px; ">
  <tr>
    <td width="30" height="30" align="center" valign="middle" background="/img/ylh.gif"><img src="/img/sjxtb.gif" width="9" height="17"></td>
    <td width="938" align="left" valign="middle" background="/img/ylh.gif" class="zi">友情链接</td>
  </tr>
  <tr>
    <td colspan="2" style="padding:5px;"><table width="952" height="26" border="0" cellpadding="0" cellspacing="5">
        <tr>
        
        <c:forEach items="${yqlist}" var="youqing">
        <table style="float: left;">
        <tr>
          <td style="border:1px solid #BEDE9D;" width="125" height="25" align="center" valign="middle" bgcolor="#FFFFFF"><a href="${youqing.url}" class="youlian">${youqing.name}</a></td>
        
          <td align="center" valign="middle">&nbsp;</td>
          </tr>
          </table>
        </c:forEach>  
        </tr>
    </table></td>
  </tr>
</table>