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我尝试使用<s:url ..标记实现令牌拦截器,但在第一次单击时显示错误.即The form has already been processed or no token was supplied, please try again.

我想实现这个拦截器,因为如果用户已经删除了一行并再次刷新页面,那么同一个动作不应该再次执行.

<s:url id="linkdelete" action="DeleteLatestUpload.action" namespace="/admin/insecure/upload">
     <s:param name="latestUploadId" value="latestUploadId"></s:param>
     <s:token name="token"></s:token>
</s:url> 
<a href='<s:property value="#linkdelete"/>' style="color: white;text-decoration:  none;" class="delbuttonlink">Clear current Uploads</a>

和我的struts.xml:

 <action name="DeleteLatestUpload" class="v.esoft.actions.UploadExcel" method="deleteUploads">                   
     <interceptor-ref name="token"></interceptor-ref>
     <interceptor-ref name="basicStack"></interceptor-ref>  
     <result name="success" type="tiles"> uploadforward</result>
     <result name="invalid.token" type="tiles">uploadforward </result>
 </action>