Pessoal, bom dia! estou com um sério problema para exportar com o displaytag. essa é a JSP. Quando eu retiro as tags do struts, a exportação funciona perfeitamente, entretanto, quando eu tento exportar com as t…

Problema exportação displaytag + Struts 2

Pessoal, bom dia!

estou com um sério problema para exportar com o displaytag.

essa é a JSP.

<%@ taglib prefix=“s” uri="/struts-tags" %>
<%–@ taglib uri="/WEB-INF/displaytag.tld" prefix=“display”–%>
<%@taglib uri=“http://displaytag.sf.net” prefix=“display” %>

" type="text/css" rel="stylesheet" /> ">

<script type="text/javascript" language="javascript" src="<s:url value="/lib/js/simova-core.js" />"></script>
<script type="text/javascript" language="javascript" src="<s:url value="/lib/js/simova-validacao.js" />"></script>

<div id="div_principal">    
 	
 	<s:include value="/WEB-INF/portal/include/topo.jsp" />
    
   	<div id="div_titulo">
    	<label class="texto_titulo" style="margin-left:15px;">Celular - Lista</label>
    </div>
    
    <div id="div_sub_menu">
    	<div style="position:relative; margin-top:8px; margin-left:50px;">
    		<a href="<s:url value="/Celular/iniciarCadastro.action" includeParams="none" />" class="link">Incluir</a>
    	</div>
    </div>
    
    
    <div id="div_conteudo" onmouseover="javascript:submenus()">
        <!-- Todo o conteúdo do site fica aqui dentro desse div -->
		
        <s:form id="fr_principal" name="celular" namespace="/Celular" action="listar">    
        	<div class="div_campo_padrao">
        		<s:actionerror/>
        	</div>   
            <div class="div_campo_duplo" style="width:200px;">
	    		<label>Id Mobile:</label>
	            <s:textfield
	            	name="celular.idMobile"
	            	maxlength="18"
	            	size="20"
	            	cssClass="campo_texto_desativado" 
	            	onfocus="this.className='campo_texto_ativado'" 
	            	onblur="mascara(this, soNumeros); this.className='campo_texto_desativado'" 
	            	onkeypress="mascara(this, soNumeros);" />
    		</div>
    		<div class="div_campo_duplo">
	    		<label>Celular:</label>
	            <s:textfield
	            	name="celular.numero"
	            	maxlength="14"
	            	size="20"
	            	cssClass="campo_texto_desativado" 
	            	onfocus="this.className='campo_texto_ativado'" 
	            	onblur="validar(this); this.className='campo_texto_desativado';"
	            	onkeypress="mascara(this, telefone);" />
    		</div>

			<div class="div_campo_padrao" style="padding-left:5px;">
	    		<label>Status:</label>
	            <s:select
	            	name="status"      
	            	headerValue="true"
	            	list="#{'true':'Ativado', 'false':'Desativado'}"
	            	cssClass="campo_texto_desativado" 
	            	onfocus="this.className='campo_texto_ativado'" 
	            	onblur="this.className='campo_texto_desativado';" />
    		</div>
    		
    		<div class="div_campo_padrao" style="top:10px; padding-left:5px;">
	    		<s:submit 
	            	id="bt_acao" 
	            	name="bt_acao" 
	            	value="Consultar" 
	            	align="left"
	            	cssClass="botao_padrao" />
    		</div>
        </s:form>
        <div class="div_campo_padrao" style="top:20px; padding-left:5px;">
         	<display:table name="lista"
         		id="celular" 
				requestURI="/Celular/listar.action"
				sort="list" 
				pagesize="30"
				style="width:95%; padding-right:10px;"
				class="branco"
				defaultsort="1"
				export="true">
				<s:url includeParams="none" namespace="/Celular" action="carregar" id="editar" >
					<s:param name="celular.id">${celular.id}</s:param>
				</s:url>		
				
				<s:url includeParams="none" namespace="/Celular"  action="excluir" id="excluir" >
					<s:param name="celular.id">${celular.id}</s:param>
				</s:url>
				
				<display:column property="idMobile" title="Id Mobile" sortable="true" />
				<display:column property="numero" title="N&uacute;mero Celular" sortable="true" />
				<display:column property="statusStr" title="Status" sortable="true" />
				
				<display:column title="Editar" sortable="true">
					<a href="<s:property value="%{editar}" />" >
						<img src="<s:url value="/lib/img/img_edit.gif" />" alt="Editar Registro" border="0"/>
					</a>
				</display:column>
				<display:column title="Excluir" sortable="false">
					<s:if test="#attr.celular.status">
						<a onclick="javascript: return confirmaExclusao();" href="<s:property value="%{excluir}" />" >
							<img src="<s:url value="/lib/img/img_excluir.gif" />" border="0" alt="Desativar Registro"/>
						</a>
					</s:if>
					<s:else>
						<a onclick="javascript: return confirmaAtivacao();" href="<s:property value="%{excluir}" />" >
							<img src="<s:url value="/lib/img/img_ativar.gif" />" border="0" alt="Ativar Registro"/>
						</a>
					</s:else>
				</display:column>
				<display:setProperty name="export.excel.filename" value="ActorDetails.xls"/> 
			</display:table>
			<div  class="div_campo_padrao" onclick="javascript: abrirJanela('<s:url value="/Celular/export.action"/>', 760, 520);">
				<a href="#"><label>exportar</label></a>
			</div
        </div>
		
    </div>
    <s:include value="/WEB-INF/portal/include/rodape.jsp" />

Quando eu retiro as tags do struts, a exportação funciona perfeitamente, entretanto, quando eu tento exportar com as tags do struts que preciso para efetuar as pesquisas, ocorre uma exceção

25/03/2009 09:28:54 org.apache.catalina.core.StandardWrapperValve invoke

SEVERE: Servlet.service() for servlet default threw exception

Exception: [.TableTag] Unable to reset response before returning exported data. You are not using an export filter. Be sure that no other jsp tags are used before display:table or refer to the displaytag documentation on how to configure the export filter (requires j2ee 1.3).

at org.displaytag.tags.TableTag.writeExport(TableTag.java:1430)

at org.displaytag.tags.TableTag.doExport(TableTag.java:1356)

at org.displaytag.tags.TableTag.doEndTag(TableTag.java:1227)

at org.apache.jsp.WEB_002dINF.portal.cadastro.celular_005flistar_jsp._jspService(celular_005flistar_jsp.java:278)

at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)

at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)

at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:337)

at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:630)

at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)

at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)

at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)

at org.apache.struts2.dispatcher.ServletDispatcherResult.doExecute(ServletDispatcherResult.java:139)

at org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:178)

at com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:348)

at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:253)

at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:221)

at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)

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.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:150)

at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:48)

at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)

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.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:123)

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.ParametersInterceptor.doIntercept(ParametersInterceptor.java:167)

at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)

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.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:105)

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 org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:83)

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 org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:207)

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.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:74)

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.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:127)

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 org.apache.struts2.interceptor.ProfilingActivationInterceptor.intercept(ProfilingActivationInterceptor.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 org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:206)

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.ChainingInterceptor.intercept(ChainingInterceptor.java:115)

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)

at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)

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 org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:170)

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.AliasInterceptor.intercept(AliasInterceptor.java:123)

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.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:176)

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 br.com.simova.bob.system.interceptor.ApplicationSecurityInterceptor.intercept(ApplicationSecurityInterceptor.java:52)

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 org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:50)

at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:504)

at org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:419)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)

at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)

at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)

at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)

at java.lang.Thread.run(Unknown Source)

Alguém tem idéia do que seja???

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