Current URL /web/guest/HTML generates exception: null in Liferay 6.0.6

StackOverflow https://stackoverflow.com/questions/16876101

문제

I develop an example of Struts2 with Jasper Reports and every thing work fine. In my index.jsp I have

index.jsp:

<body>
  <a href="HTML.action" target="_blank" >click to generate pdf report</a>
</body>

struts.xml:

<struts>
  <package name="default" extends="struts-default,jasperreports-default">
    <action name="HTML" class="com.tutorialspoint.DataBeanList" method="exporte">
      <result name="success">/index.jsp</result>
    </action>
  </package>
</struts>

but when I want to do that with Liferay 6.0.6 I got this error: 

INFO [PortalImpl:3829] Current URL /web/guest/HTML.action generates exception: null

In my struts.xml I have:

<!-- Action pour générer un rapport pdf -->

<package namespace="/reporting" extends="struts-portlet-default,json-default,jasperreports-default" name="reportingview"> 
  <action name="HTML" class="com.xxxxxx.struts2.actions.genererQPpdf" method="exporte">
    <result name="success">/JSPs/reporting/resultQP.jsp</result> 
  </action> 
</package>

so any one can help me.

도움이 되었습니까?

해결책

Better use the struts tags to exclude errors in the code. For example url tag could be used to construct the correct link that point to the action.

<a href="<s:url namespace="/reporting" action="HTML"/>" target="_blank" >click to generate pdf report</a>
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