Does the <s:action...> take make an actual request? I guess I assumed it executed the action without making a full request, which could cause the error you're seeing, as the response would already have been written to by the time your stream result got ahold of it.
Dave --- "Hoying, Ken" <[EMAIL PROTECTED]> wrote: > BTW.. I have tested the stream action by calling it directly by > placing > the url to action in the address window of my browser and it works > perfectly then. > > > -----Original Message----- > From: news [mailto:[EMAIL PROTECTED] On Behalf Of Laurie Harper > Sent: Wednesday, May 21, 2008 2:09 PM > To: user@struts.apache.org > Subject: Re: [S2] Advice on Handling CLOBs in Struts2 > > Since that's not a normal result of using a stream result, I have to > assume you are doing something wrong. Without seeing the relevant > code/configuration, though, we can't offer much help. > > L. > > Hoying, Ken wrote: > > I have tried to accomplish this by creating an action with a stream > > > result type. > > > > I am then including calling the action from with in my JSP page > using > > the <s:action> tag. > > > > Unfortunately though, I am getting the following error: > > > > [2008-05-21 11:26:25,702] [http-0.0.0.0-8080-2] [ERROR] [] > > [ts2.components.ActionComponent]: Could not execute action: > > /catalog/ContractDetailsNote > > java.lang.IllegalStateException: getWriter() has already been > called > > for this response > > at > > > org.apache.catalina.connector.Response.getOutputStream(Response.java:5 > > 73 > > ) > > at > > > org.apache.catalina.connector.ResponseFacade.getOutputStream(ResponseF > > ac > > ade.java:183) > > at > > > org.apache.struts2.dispatcher.StreamResult.doExecute(StreamResult.java > > :2 > > 19) > > at > > > org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResult > > Su > > pport.java:178) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultA > > ct > > ionInvocation.java:348) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionIn > > vo > > cation.java:253) > > at > > > org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.ja > > va > > :50) > > at > > > org.apache.struts2.components.ActionComponent.executeAction(ActionComp > > on > > ent.java:255) > > at > > > org.apache.struts2.components.ActionComponent.end(ActionComponent.java > > :1 > > 55) > > at > > > org.apache.struts2.views.jsp.ComponentTagSupport.doEndTag(ComponentTag > > Su > > pport.java:43) > > at > > > org.apache.jsp.jsps.catalog.AjaxContractInfo_jsp._jspx_meth_s_005facti > > on > > _005f0(AjaxContractInfo_jsp.java:413) > > at > > > org.apache.jsp.jsps.catalog.AjaxContractInfo_jsp._jspx_meth_s_005fiter > > at > > or_005f0(AjaxContractInfo_jsp.java:297) > > at > > > org.apache.jsp.jsps.catalog.AjaxContractInfo_jsp._jspx_meth_s_005fsort > > _0 > > 05f0(AjaxContractInfo_jsp.java:247) > > at > > > org.apache.jsp.jsps.catalog.AjaxContractInfo_jsp._jspx_meth_s_005felse > > _0 > > 05f0(AjaxContractInfo_jsp.java:200) > > at > > > org.apache.jsp.jsps.catalog.AjaxContractInfo_jsp._jspService(AjaxContr > > ac > > tInfo_jsp.java:99) > > 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. > > ja > > va:373) > > at > > > org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:336) > > at > > org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265) > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) > > at > > > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli > > ca > > tionFilterChain.java:290) > > at > > > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi > > lt > > erChain.java:206) > > at > > > org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispa > > tc > > her.java:654) > > at > > > org.apache.catalina.core.ApplicationDispatcher.processRequest(Applicat > > io > > nDispatcher.java:445) > > at > > > org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDi > > sp > > atcher.java:379) > > at > > > org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDisp > > at > > cher.java:292) > > at > > > org.apache.struts2.dispatcher.ServletDispatcherResult.doExecute(Servle > > tD > > ispatcherResult.java:139) > > at > > > org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResult > > Su > > pport.java:178) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultA > > ct > > ionInvocation.java:348) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionIn > > vo > > cation.java:253) > > at > > > com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doInter > > ce > > pt(DefaultWorkflowInterceptor.java:221) > > at > > > com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept( > > Me > > thodFilterInterceptor.java:86) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:224) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:223) > > at > > > com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTime > > rS > > tack.java:455) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionIn > > vo > > cation.java:221) > > at > > > com.opensymphony.xwork2.interceptor.TimerInterceptor.invokeUnderTiming > > (T > > imerInterceptor.java:125) > > at > > > com.opensymphony.xwork2.interceptor.TimerInterceptor.intercept(TimerIn > > te > > rceptor.java:112) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:224) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:223) > > at > > > com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTime > > rS > > tack.java:455) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionIn > > vo > > cation.java:221) > > at > > > com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(Va > > li > > dationInterceptor.java:150) > > at > > > org.apache.struts2.interceptor.validation.AnnotationValidationIntercep > > to > > r.doIntercept(AnnotationValidationInterceptor.java:48) > > at > > > com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept( > > Me > > thodFilterInterceptor.java:86) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:224) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:223) > > at > > > com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTime > > rS > > tack.java:455) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionIn > > vo > > cation.java:221) > > at > > > com.opensymphony.xwork2.interceptor.TimerInterceptor.invokeUnderTiming > > (T > > imerInterceptor.java:125) > > at > > > com.opensymphony.xwork2.interceptor.TimerInterceptor.intercept(TimerIn > > te > > rceptor.java:112) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:224) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:223) > > at > > > com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTime > > rS > > tack.java:455) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionIn > > vo > > cation.java:221) > > at > > > com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.interce > > pt > > (ConversionErrorInterceptor.java:123) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:224) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:223) > > at > > > com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTime > > rS > > tack.java:455) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionIn > > vo > > cation.java:221) > > at > > > com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept( > > Pa > > rametersInterceptor.java:167) > > at > > > com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept( > > Me > > thodFilterInterceptor.java:86) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:224) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:223) > > at > > > com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTime > > rS > > tack.java:455) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionIn > > vo > > cation.java:221) > > at > > > com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.interc > > ep > > t(StaticParametersInterceptor.java:105) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:224) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:223) > > at > > > com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTime > > rS > > tack.java:455) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionIn > > vo > > cation.java:221) > > at > > > org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxI > > nt > > erceptor.java:83) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:224) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:223) > > at > > > com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTime > > rS > > tack.java:455) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionIn > > vo > > cation.java:221) > > at > > > com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(Chai > > ni > > ngInterceptor.java:115) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:224) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:223) > > at > > > com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTime > > rS > > tack.java:455) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionIn > > vo > > cation.java:221) > > at > > > com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInte > > rc > > eptor.java:143) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:224) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:223) > > at > > > com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTime > > rS > > tack.java:455) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionIn > > vo > > cation.java:221) > > at > > > com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(Pre > > pa > > reInterceptor.java:121) > > at > > > com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept( > > Me > > thodFilterInterceptor.java:86) > > at > > > com.premierinc.sca.interceptor.ScaPrepareInterceptor.intercept(ScaPrep > > ar > > eInterceptor.java:42) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:224) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:223) > > at > > > com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTime > > rS > > tack.java:455) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionIn > > vo > > cation.java:221) > > at > > > org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(Serv > > le > > tConfigInterceptor.java:170) > > at > > > com.premierinc.sca.interceptor.ServletConfigEnhancedInterceptor.interc > > ep > > t(ServletConfigEnhancedInterceptor.java:73) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:224) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:223) > > at > > > com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTime > > rS > > tack.java:455) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionIn > > vo > > cation.java:221) > > at > > > com.premierinc.sca.interceptor.UserInterceptor.intercept(UserIntercept > > or > > ..java:129) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:224) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:223) > > at > > > com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTime > > rS > > tack.java:455) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionIn > > vo > > cation.java:221) > > at > > > com.premierinc.sca.interceptor.HibernateSessionInterceptor$FilterChain > > In > > voker.doFilter(HibernateSessionInterceptor.java:145) > > at > > > org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doF > > il > > terInternal(OpenSessionInViewFilter.java:198) > > at > > > org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRe > > qu > > estFilter.java:75) > > at > > > com.premierinc.sca.interceptor.HibernateSessionInterceptor.intercept(H > > ib > > ernateSessionInterceptor.java:75) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:224) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:223) > > at > > > com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTime > > rS > > tack.java:455) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionIn > > vo > > cation.java:221) > > at > > > com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.interc > > ep > > t(ExceptionMappingInterceptor.java:176) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:224) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultA > > ct > > ionInvocation.java:223) > > at > > > com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTime > > rS > > tack.java:455) > > at > > > com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionIn > > vo > > cation.java:221) > > at > > > org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.ja > > va > > :50) > > at > > > org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java > > :5 > > 04) > > at > > > org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatch > > er > > ..java:419) > > at > > > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli > > ca > > tionFilterChain.java:235) > > at > > > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi > > lt > > erChain.java:206) > > at > > > org.apache.struts2.dispatcher.ActionContextCleanUp.doFilter(ActionCont > > ex > > tCleanUp.java:99) > > at > > > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli > > ca > > tionFilterChain.java:235) > > at > > > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi > > lt > > erChain.java:206) > > at > > > org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFil > > te > > r.java:96) > > at > > > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli > > ca > > tionFilterChain.java:235) > > at > > > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi > > lt > > erChain.java:206) > > at > > > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperVa > > lv > > e.java:230) > > at > > > org.apache.catalina.core.StandardContextValve.invoke(StandardContextVa > > lv > > e.java:175) > > at > > > org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(Security > > As > > sociationValve.java:179) > > at > > > org.apache.catalina.authenticator.AuthenticatorBase.invoke(Authenticat > > or > > Base.java:432) > > at > > > org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve > > .j > > ava:84) > > at > > > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.ja > > va > > :127) > > at > > > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.ja > > va > > :102) > > at > > > org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedCo > > nn > > ectionValve.java:157) > > at > > > org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve. > > java:109) > > at > > > org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java > > :2 > > 62) > > at > > > org.apache.coyote.http11.Http11Processor.process(Http11Processor.java: > > 84 > > 4) > > at > > > org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proces > > s( > > Http11Protocol.java:583) > > at > > > org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446) > > at java.lang.Thread.run(Thread.java:595) > > > > > > -----Original Message----- > > From: Hoying, Ken [mailto:[EMAIL PROTECTED] > > Sent: Wednesday, May 21, 2008 9:42 AM > > To: user@struts.apache.org > > Subject: [S2] Advice on Handling CLOBs in Struts2 > > > > Generally when working with Struts2, we have been loading a domaon > > object from the database in our action and then sending then > > referencing the properties as needed from the JSP to generate our > output. > > > > However, we now what could potentially be a large amount of data > > stored in a CLOB. Using the method that we have been using to > date, > > we would have to place the entire CLOB in a string in the action > and > > then access it from the JSP. Obviously, we would like to avoid > doing > that. > > > > I was wondering if anyone else had come across this and how they > had > > managed to solve it. How do we stream the content of the CLOB? > > > > Thank you! > > Ken > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
