3 Replies Latest reply on Jun 4, 2008 11:25 AM by Peter Johnson

    Link for downalding a document PDF in a portlet

    jbal khadija Newbie

      I want to make a link for telecharger file PDF, in a portlet, but that does not work, i have a error.
      Here is my code in the portlet:

      public void doView(RenderRequest req, RenderResponse rep)
       throws PortletException, IOException {
       String filename = (String) req.getParameter("filename");
      
       if (filename!=null) {
       rep.setContentType("application/pdf");
      File file= new File ("C://Documents and Settings/"+filename);
      InputStream in = new FileInputStream(ff);
      OutputStream outs = rep.getPortletOutputStream(); try {
       int bit = in.read();
       while ((bit) >= 0) {
       outs.write(bit);
       bit = in.read();
       }
       } catch (Exception e) {
       e.printStackTrace(System.out);
       }
       outs.flush();
       outs.close();
       in.close();
       }
       }


      i have this exception:
      Cause: javax.portlet.PortletException: org.apache.jasper.JasperException: java.lang.IllegalStateException: The window output stream is already used
      Message: org.apache.jasper.JasperException: java.lang.IllegalStateException: The window output stream is already used
      StackTrace:
      javax.portlet.PortletException: org.apache.jasper.JasperException: java.lang.IllegalStateException: The window output stream is already used
      at org.jboss.portal.portlet.impl.jsr168.api.PortletRequestDispatcherImpl.include(PortletRequestDispatcherImpl.java:91)
      at portal.portlets.PListeFormation.doView(Unknown Source)
      at javax.portlet.GenericPortlet.doDispatch(GenericPortlet.java:133)
      at javax.portlet.GenericPortlet.render(GenericPortlet.java:306)