Returning a file as the response on doAction()

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bdi...@gmail.com

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Aug 7, 2015, 4:39:17 AM8/7/15
to Hippo Community
Hi;

What I'm trying to do is; 
Save document list to a CSV or Excel file and return it to the user.

I have a classic page that list the documents and on the doAction() method I'm trying to create the file on the server side and return it to the user, so s/he can download the file.

When I modify response object I'm getting:
[INFO] [talledLocalContainer] java.lang.IllegalStateException: Cannot call sendError() after the response has been committed
Do I have to use response.sendRedirect() and prepare another page for this purpose?

I could not find any examples on the web. Can someone help me with this?

Regards.

Berkhan Dipso

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Aug 10, 2015, 3:23:31 AM8/10/15
to Hippo Community
This is the code I tried; 
@Override
public void doAction(HstRequest request, HstResponse response) {

//super.doAction(request, response);
       FileInputStream inputStream;
try {
inputStream = new FileInputStream("C:\\KKL.xls");
response.setContentType("application/vnd.ms-excel");
       response.setHeader("Content-Disposition","attachment; filename=KKL.xls");
       IOUtils.copy(inputStream, response.getOutputStream());
} catch (IOException e) {
e.printStackTrace();
} 
}


It is downloading the file but on the server site it raises an error:
[INFO] [talledLocalContainer] Aug 10, 2015 10:21:13 AM org.apache.catalina.core.StandardWrapperValve invoke
[INFO] [talledLocalContainer] SEVERE: Servlet.service() for servlet [default] in context with path [/site] threw exception
[INFO] [talledLocalContainer] java.lang.IllegalStateException: Cannot call sendError() after the response has been committed
[INFO] [talledLocalContainer] at org.apache.catalina.connector.ResponseFacade.sendError(ResponseFacade.java:466)
[INFO] [talledLocalContainer] at javax.servlet.http.HttpServletResponseWrapper.sendError(HttpServletResponseWrapper.java:128)
[INFO] [talledLocalContainer] at javax.servlet.http.HttpServletResponseWrapper.sendError(HttpServletResponseWrapper.java:128)
[INFO] [talledLocalContainer] at org.springframework.security.web.context.SaveContextOnUpdateOrErrorResponseWrapper.sendError(SaveContextOnUpdateOrErrorResponseWrapper.java:87)
[INFO] [talledLocalContainer] at org.hippoecm.hst.container.HstFilter.sendError(HstFilter.java:752)
[INFO] [talledLocalContainer] at org.hippoecm.hst.container.HstFilter.doFilter(HstFilter.java:524)
[INFO] [talledLocalContainer] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
[INFO] [talledLocalContainer] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
[INFO] [talledLocalContainer] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
[INFO] [talledLocalContainer] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
[INFO] [talledLocalContainer] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
[INFO] [talledLocalContainer] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
[INFO] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
[INFO] [talledLocalContainer] at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118)
[INFO] [talledLocalContainer] at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84)
[INFO] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
[INFO] [talledLocalContainer] at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
[INFO] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
[INFO] [talledLocalContainer] at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103)
[INFO] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
[INFO] [talledLocalContainer] at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
[INFO] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
[INFO] [talledLocalContainer] at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:154)
[INFO] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
[INFO] [talledLocalContainer] at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45)
[INFO] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
[INFO] [talledLocalContainer] at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150)
[INFO] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
[INFO] [talledLocalContainer] at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:199)
[INFO] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
[INFO] [talledLocalContainer] at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:110)
[INFO] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
[INFO] [talledLocalContainer] at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:50)
[INFO] [talledLocalContainer] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
[INFO] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
[INFO] [talledLocalContainer] at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
[INFO] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
[INFO] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)
[INFO] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
[INFO] [talledLocalContainer] at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:343)
[INFO] [talledLocalContainer] at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:260)
[INFO] [talledLocalContainer] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
[INFO] [talledLocalContainer] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
[INFO] [talledLocalContainer] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
[INFO] [talledLocalContainer] at org.apache.catalina.core.StandardContextValve.__invoke(StandardContextValve.java:122)
[INFO] [talledLocalContainer] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java)
[INFO] [talledLocalContainer] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
[INFO] [talledLocalContainer] at org.apache.catalina.core.StandardHostValve.__invoke(StandardHostValve.java:170)
[INFO] [talledLocalContainer] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java)
[INFO] [talledLocalContainer] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
[INFO] [talledLocalContainer] at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
[INFO] [talledLocalContainer] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
[INFO] [talledLocalContainer] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
[INFO] [talledLocalContainer] at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
[INFO] [talledLocalContainer] at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
[INFO] [talledLocalContainer] at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:313)
[INFO] [talledLocalContainer] at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
[INFO] [talledLocalContainer] at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
[INFO] [talledLocalContainer] at java.lang.Thread.run(Unknown Source)
[INFO] [talledLocalContainer] 
[INFO] [talledLocalContainer] Aug 10, 2015 10:21:13 AM org.apache.catalina.core.ApplicationDispatcher invoke
[INFO] [talledLocalContainer] SEVERE: Servlet.service() for servlet jsp threw exception
[INFO] [talledLocalContainer] java.lang.IllegalStateException: getOutputStream() has already been called for this response
[INFO] [talledLocalContainer] at org.apache.catalina.connector.Response.getWriter(Response.java:636)
[INFO] [talledLocalContainer] at org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:213)
[INFO] [talledLocalContainer] at javax.servlet.ServletResponseWrapper.getWriter(ServletResponseWrapper.java:104)
[INFO] [talledLocalContainer] at org.apache.jasper.runtime.JspWriterImpl.initOut(JspWriterImpl.java:125)
[INFO] [talledLocalContainer] at org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:118)
[INFO] [talledLocalContainer] at org.apache.jasper.runtime.PageContextImpl.release(PageContextImpl.java:186)
[INFO] [talledLocalContainer] at org.apache.jasper.runtime.JspFactoryImpl.internalReleasePageContext(JspFactoryImpl.java:126)
[INFO] [talledLocalContainer] at org.apache.jasper.runtime.JspFactoryImpl.releasePageContext(JspFactoryImpl.java:80)
[INFO] [talledLocalContainer] at org.apache.jsp.WEB_002dINF.jsp.errorpages.ErrorPage500_jsp._jspService(ErrorPage500_jsp.java:96)
[INFO] [talledLocalContainer] at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
[INFO] [talledLocalContainer] at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
[INFO] [talledLocalContainer] at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
[INFO] [talledLocalContainer] at org.apache.jasper.servlet.JspServlet._serviceJspFile(JspServlet.java:390)
[INFO] [talledLocalContainer] at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java)
[INFO] [talledLocalContainer] at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
[INFO] [talledLocalContainer] at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
[INFO] [talledLocalContainer] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
[INFO] [talledLocalContainer] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
[INFO] [talledLocalContainer] at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:748)
[INFO] [talledLocalContainer] at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:604)
[INFO] [talledLocalContainer] at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:543)
[INFO] [talledLocalContainer] at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:460)
[INFO] [talledLocalContainer] at org.apache.catalina.core.StandardHostValve.throwable(StandardHostValve.java:411)
[INFO] [talledLocalContainer] at org.apache.catalina.core.StandardHostValve.__invoke(StandardHostValve.java:200)
[INFO] [talledLocalContainer] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java)
[INFO] [talledLocalContainer] 10.08.2015 10:21:13 WARN  http-bio-9080-exec-10 [HstFilter.doFilter:522] ContainerException for '/mevzuat/_hn:action%7Cr74_r1_r2%7C/site/kalite/cevre-mevzuati_iii_/cevre-kanunu_iii_2872a-000_': org.hippoecm.hst.core.container.ContainerException: java.lang.IllegalStateException: Cannot call sendRedirect() after the response has been committed
[INFO] [talledLocalContainer] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
[INFO] [talledLocalContainer] at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
[INFO] [talledLocalContainer] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
[INFO] [talledLocalContainer] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
[INFO] [talledLocalContainer] at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
[INFO] [talledLocalContainer] at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
[INFO] [talledLocalContainer] at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:313)
[INFO] [talledLocalContainer] at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
[INFO] [talledLocalContainer] at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
[INFO] [talledLocalContainer] at java.lang.Thread.run(Unknown Source)
[INFO] [talledLocalContainer] 
[INFO] [talledLocalContainer] Aug 10, 2015 10:21:13 AM org.apache.catalina.core.StandardHostValve custom
[INFO] [talledLocalContainer] SEVERE: Exception Processing ErrorPage[exceptionType=java.lang.Exception, location=/WEB-INF/jsp/errorpages/ErrorPage500.jsp]
[INFO] [talledLocalContainer] org.apache.jasper.JasperException: java.lang.IllegalStateException: getOutputStream() has already been called for this response
[INFO] [talledLocalContainer] at org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:585)
[INFO] [talledLocalContainer] at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:465)
[INFO] [talledLocalContainer] at org.apache.jasper.servlet.JspServlet._serviceJspFile(JspServlet.java:390)
[INFO] [talledLocalContainer] at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java)
[INFO] [talledLocalContainer] at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
[INFO] [talledLocalContainer] at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
[INFO] [talledLocalContainer] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
[INFO] [talledLocalContainer] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
[INFO] [talledLocalContainer] at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:748)
[INFO] [talledLocalContainer] at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:604)
[INFO] [talledLocalContainer] at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:543)
[INFO] [talledLocalContainer] at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:460)
[INFO] [talledLocalContainer] at org.apache.catalina.core.StandardHostValve.throwable(StandardHostValve.java:411)
[INFO] [talledLocalContainer] at org.apache.catalina.core.StandardHostValve.__invoke(StandardHostValve.java:200)
[INFO] [talledLocalContainer] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java)
[INFO] [talledLocalContainer] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
[INFO] [talledLocalContainer] at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
[INFO] [talledLocalContainer] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
[INFO] [talledLocalContainer] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
[INFO] [talledLocalContainer] at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
[INFO] [talledLocalContainer] at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
[INFO] [talledLocalContainer] at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:313)
[INFO] [talledLocalContainer] at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
[INFO] [talledLocalContainer] at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
[INFO] [talledLocalContainer] at java.lang.Thread.run(Unknown Source)
[INFO] [talledLocalContainer] Caused by: java.lang.IllegalStateException: getOutputStream() has already been called for this response
[INFO] [talledLocalContainer] at org.apache.catalina.connector.Response.getWriter(Response.java:636)
[INFO] [talledLocalContainer] at org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:213)
[INFO] [talledLocalContainer] at javax.servlet.ServletResponseWrapper.getWriter(ServletResponseWrapper.java:104)
[INFO] [talledLocalContainer] at org.apache.jasper.runtime.JspWriterImpl.initOut(JspWriterImpl.java:125)
[INFO] [talledLocalContainer] at org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:118)
[INFO] [talledLocalContainer] at org.apache.jasper.runtime.PageContextImpl.release(PageContextImpl.java:186)
[INFO] [talledLocalContainer] at org.apache.jasper.runtime.JspFactoryImpl.internalReleasePageContext(JspFactoryImpl.java:126)
[INFO] [talledLocalContainer] at org.apache.jasper.runtime.JspFactoryImpl.releasePageContext(JspFactoryImpl.java:80)
[INFO] [talledLocalContainer] at org.apache.jsp.WEB_002dINF.jsp.errorpages.ErrorPage500_jsp._jspService(ErrorPage500_jsp.java:96)
[INFO] [talledLocalContainer] at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
[INFO] [talledLocalContainer] at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
[INFO] [talledLocalContainer] at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
[INFO] [talledLocalContainer] ... 23 more
[INFO] [talledLocalContainer] 

Berkhan Dipso

unread,
Aug 10, 2015, 5:16:10 AM8/10/15
to Hippo Community
I've resolved this issue with redirection.

on doAction() method I've created my file and pass file name parameter to a new page using redirection;
this is the code that I used doBeforeRender() method of redirected page:
@Override
public void doBeforeRender(HstRequest request, HstResponse response) {
super.doBeforeRender(request, response);

String file = getPublicRequestParameter(request, "file");
System.out.println(file);
        FileInputStream inputStream;
try {
inputStream = new FileInputStream("C:\\temp\\" + file);
response.setContentType("application/vnd.ms-excel");
       response.setHeader("Content-Disposition","attachment; filename=" + FilenameUtils.getName(file));
       
       try {
       IOUtils.copy(inputStream, response.getOutputStream());
       } finally {
           if (inputStream != null) 
               inputStream.close();
       }
} catch (IOException e) {
e.printStackTrace();
} 
}



Bert Leunis

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Aug 10, 2015, 5:21:54 AM8/10/15
to Hippo Community
On Mon, Aug 10, 2015 at 11:16 AM, Berkhan Dipso <bdi...@gmail.com> wrote:
I've resolved this issue with redirection.
Ah, you found it already. You have dealt with the PRG pattern now, as described on [1]. After the processing in the doAction method, a redirect is done always. Next steps, like for example showing validation or success info (which is the example described at [1]) are done in a next GET request. So that code will, indeed, be added to a doBeforeRender method of an HstComponent.

[1] http://www.onehippo.org/library/concepts/component-development/hst-2-forms.html

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