download file Error in struts2 action class

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B.sucharitha

download file Error in struts2 action class
0 Answer(s) a year and 3 months ago
Posted in : Struts

Hi,

i am using bellow block of code for download file :

public void downloadGreeting(String filename,HttpServletRequest request, HttpServletResponse response){
        String strPrefix = System.getProperty("astsoundsfolderoriginal");
        File requiredFile = new File(strPrefix + filename);
        System.out.println("requiredFile...."+requiredFile);
        if ( requiredFile.exists()) {
        try {
            response.setHeader("Content-Type", "application/wav; filename=" + filename);
            response.setHeader("Content-Disposition", "attachment; filename=" + filename);
            response.setHeader("Content-Length", "" + requiredFile.length());
                        **response.reset();**//even though i am using still i get the same problem
                       **response.resetBuffer();**//even though i am using still i get the same problem

                OutputStream os = response.getOutputStream();
                FileInputStream fis = new FileInputStream(requiredFile);
                int ch;
                while ( ( ch = fis.read() ) != -1 ) {
                    os.write(ch);
                    os.flush();

                }
                fis.close();
        } catch ( Exception ne ) {
                        System.out.println("Error in downloadGreeting()");
            }
    } else {
            System.out.println("file doesnot exist....");
    }
    }


while executing the following problem occured

**issue :**

WARNING: ApplicationDispatcher[/adminfive] PWC1231: Servlet.service() for servlet jsp threw exception
java.lang.IllegalStateException: PWC3991: getOutputStream() has already been called for this response
        at org.apache.catalina.connector.Response.getWriter(Response.java:705)
        at org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:225)
        at javax.servlet.ServletResponseWrapper.getWriter(ServletResponseWrapper.java:152)
        at org.apache.jasper.runtime.JspWriterImpl.initOut(JspWriterImpl.java:191)
        at org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:184)
        at org.apache.jasper.runtime.JspWriterImpl.write(JspWriterImpl.java:405)
        at java.io.PrintWriter.write(PrintWriter.java:382)
        at org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:185)
        at org.apache.jasper.runtime.JspWriterImpl.write(JspWriterImpl.java:458)
        at org.apache.jasper.runtime.JspWriterImpl.write(JspWriterImpl.java:471)
        at org.apache.jsp.layout.header_jsp._jspService(header_jsp.java from :437)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:111)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
        at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:403)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:492)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:378)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
        at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1534)
        at org.apache.catalina.core.ApplicationDispatcher.doInvoke(ApplicationDispatcher.java:787)
        at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:649)
        at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:604)
        at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:534)
        at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:1015)
        at org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:700)
        at org.apache.tiles.jsp.context.JspTilesRequestContext.include(JspTilesRequestContext.java:103)
        at org.apache.tiles.jsp.context.JspTilesRequestContext.dispatch(JspTilesRequestContext.java:96)
        at org.apache.tiles.renderer.impl.UntypedAttributeRenderer.write(UntypedAttributeRenderer.java:61)
        at org.apache.tiles.renderer.impl.AbstractBaseAttributeRenderer.render(AbstractBaseAttributeRenderer.java:103)
        at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:659)
        at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:337)
        at org.apache.tiles.jsp.taglib.InsertAttributeTag.render(InsertAttributeTag.java:234)
        at org.apache.tiles.jsp.taglib.InsertAttributeTag.render(InsertAttributeTag.java:211)
        at org.apache.tiles.jsp.taglib.RenderTag.doEndTag(RenderTag.java:220)
        at org.apache.jsp.layout.baselayout_jsp._jspx_meth_tiles_insertAttribute_1(baselayout_jsp.java from :199)
        at org.apache.jsp.layout.baselayout_jsp._jspx_meth_s_div_0(baselayout_jsp.java from :160)
        at org.apache.jsp.layout.baselayout_jsp._jspService(baselayout_jsp.java from :95)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:111)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
        at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:403)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:492)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:378)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
        at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1534)
        at org.apache.catalina.core.ApplicationDispatcher.doInvoke(ApplicationDispatcher.java:787)
        at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:649)
        at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:604)
        at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:534)
        at org.apache.tiles.servlet.context.ServletTilesRequestContext.include(ServletTilesRequestContext.java:260)
        at org.apache.tiles.servlet.context.ServletTilesRequestContext.dispatch(ServletTilesRequestContext.java:220)
        at org.apache.tiles.renderer.impl.TemplateAttributeRenderer.write(TemplateAttributeRenderer.java:44)
        at org.apache.tiles.renderer.impl.AbstractBaseAttributeRenderer.render(AbstractBaseAttributeRenderer.java:103)
        at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:659)
        at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:678)
        at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:633)
        at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:322)
        at org.apache.struts2.views.tiles.TilesResult.doExecute(TilesResult.java:105)
        at org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:186)
        at com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:362)
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:266)
        at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:165)
        at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
        at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:252)
        at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)
        at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
        at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:122)
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
        at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195)
        at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
        at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195)
        at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
        at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:179)
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
        at org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:75)
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
        at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:94)
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
        at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:235)
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
        at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:89)
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
        at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:130)
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
        at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:267)
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
        at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:126)
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
        at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:138)
        at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
        at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:165)
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
        at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
        at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:179)
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
        at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:176)
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
        at com.panterra.worldsmart.wsadmin.model.interceptor.ActionMediator.intercept(ActionMediator.java:42)
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
        at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)
        at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:488)
        at org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:395)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:215)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
        at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
        at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98)
        at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162)
        at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:326)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:227)
        at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:170)
        at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:822)
        at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:719)
        at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1013)
        at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225)
        at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
        at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
        at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
        at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
        at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
        at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
        at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
        at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
        at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
        at java.lang.Thread.run(Thread.java:619)

Please anyone can help me to solve this.

Thanks, B.Sucharitha.

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