the input stream comes from Request
the output stream comes from Response response.getOutputStream();
http://java.sun.com/javaee/5/docs/api/javax/servlet/ServletResponse.html#getOutputStream()
this code is problematic as it is NOT associated with output stream from
HttpServletResponse response
> baos = new ByteArrayOutputStream();
> pw = new PrintWriter(baos);
Martin
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> Date: Fri, 6 Mar 2009 05:32:21 -0800
> From: divya.rajendran...@gmail.com
> To: user@struts.apache.org
> Subject: Get jsp content in struts action
>
>
> Hello,
>
> I have a JSP with struts tags in it. I want to get its contents from the
> struts action class. I did it using RequestDispatcher.
>
> I wrote the following code ..
>
> ======
> // Creates a response wrapper object.
> BufferedHttpResponseWrapper responseWrapper = new
> BufferedHttpResponseWrapper(response);
>
> // Creates a requestDispatcher object.
> ServletContext sc = request.getSession().getServletContext();
> String url =
> response.encodeRedirectURL("/web/jsp/osf/ShowStaffingForm.jsp");
> RequestDispatcher dispatcher = sc.getRequestDispatcher(url);
> try {
> dispatcher.include(request,responseWrapper);
> } catch (Exception e) {
> e.printStackTrace();
> }
> try {
> String result = new String(responseWrapper.getOutput());
> System.out.println("Result :: "+result);
> } catch (Exception e) {
> System.out.println("Exception occurring here...");
> e.printStackTrace();
> }
>
> //This is the reponse wrapper class.
> /*
> * BufferedHttpResponseWrapper class
> * *
> */
> public class BufferedHttpResponseWrapper extends
> HttpServletResponseWrapper
> {
>
> PrintWriter pw = null;
> ByteArrayOutputStream baos = null;
>
> public BufferedHttpResponseWrapper(HttpServletResponse
> response) {
>
> super(response);
> baos = new ByteArrayOutputStream();
> pw = new PrintWriter(baos);
> }
>
> public PrintWriter getWriter() throws IOException {
> return pw;
> }
>
> public String getOutput() {
> pw.flush();
> pw.close();
> return baos.toString();
> }
>
> }
>
>
> I get the jsp content in my log files, but I get an exception on the browser
> when I call this action.
> Please note that when the JSP has simple HTML tags i get the content with
> _no_ exception. Even when the JSP contains some custom tags which I
> developed , then also there is no exception I get the content. The problem
> is only when there is Struts tags in the JSP, though I get the content, I
> get the exception on the browser.
>
> The following is the exception:
>
> ==========================================================
>
> type Exception report
>
> message
>
> description The server encountered an internal error () that prevented it
> from fulfilling this request.
>
> exception
>
> javax.servlet.ServletException: Stream closed
>
> org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:515)
>
> org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:419)
>
> org.apache.struts2.dispatcher.ActionContextCleanUp.doFilter(ActionContextCleanUp.java:99)
> jcifs.http.NtlmHttpFilter.doFilter(NtlmHttpFilter.java:147)
>
> root cause
>
> java.io.IOException: Stream closed
>
> org.apache.jasper.runtime.JspWriterImpl.ensureOpen(JspWriterImpl.java:203)
>
> org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:113)
> org.apache.jasper.runtime.JspWriterImpl.flush(JspWriterImpl.java:171)
>
> org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:954)
>
> org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:601)
>
> org.apache.struts2.dispatcher.ServletDispatcherResult.doExecute(ServletDispatcherResult.java:119)
>
> org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:178)
>
> com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:348)
>
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:253)
>
> com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:221)
>
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
>
> com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
>
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
>
> com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:150)
>
> org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:48)
>
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
>
> com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
>
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
>
> com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:123)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
>
> com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
>
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
>
> com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:186)
>
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
>
> com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
>
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
>
> com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:105)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
>
> com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
>
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
>
> org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:83)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
>
> com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
>
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
>
> org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:207)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
>
> com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
>
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
>
> com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:74)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
>
> com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
>
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
>
> com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:127)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
>
> com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
>
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
>
> org.apache.struts2.interceptor.ProfilingActivationInterceptor.intercept(ProfilingActivationInterceptor.java:107)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
>
> com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
>
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
>
> org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:206)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
>
> com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
>
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
>
> com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:115)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
>
> com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
>
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
>
> com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:143)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
>
> com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
>
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
>
> com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:121)
>
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
>
> com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
>
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
>
> org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:170)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
>
> com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
>
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
>
> com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:123)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
>
> com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
>
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
>
> com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:176)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
>
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
>
> com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
>
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
>
> org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:50)
>
> org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:504)
>
> org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:419)
>
> org.apache.struts2.dispatcher.ActionContextCleanUp.doFilter(ActionContextCleanUp.java:99)
> jcifs.http.NtlmHttpFilter.doFilter(NtlmHttpFilter.java:147)
>
> =========================================================================
>
>
> Could any one please help me with this.
>
> Thanks
> -D
> --
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>
>
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