[jboss-user] [JBoss Portal] - Link for downalding a document PDF in a portlet

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) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4155442#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...