User development, A new message was posted in the thread "please help me,a jboss portal problem": http://community.jboss.org/message/520555#520555 Author : max liu Profile : http://community.jboss.org/people/liumax Message: -------------------------------------------------------------- public String download() {   ActionResponseImpl response = (ActionResponseImpl) FacesContext     .getCurrentInstance().getExternalContext().getResponse();   try {    downloadFile(response,"","");    return "";   } catch (IOException e) {    // TODO Auto-generated catch block    e.printStackTrace();   }   // FacesContext.getCurrentInstance().responseComplete();   return null; } public void downloadFile(ActionResponseImpl response, String realName,    String fileName) throws IOException {   System.out.println(response.getClass());     response.getRealResponse().setHeader("Content-Disposition",   "attachment; filename=b.rar");   OutputStream output = response.getRealResponse().getOutputStream();   byte[] b = new byte[1024];   int i = 0;   FileInputStream fis = new FileInputStream("c:/upload/upload2/b.rar");   while ((i = fis.read(b)) > 0) {    output.write(b, 0, i);   }   output.flush();   output.close(); }   sorry,i speak  english is not very well,so i used google translation to send message to here.my project(jbossportal+jsf) has a problem.it is an download development,i can not download rar or doc file.it will be opened in IE.the problem is  "response.getRealResponse().setHeader()" can not do anything.please help me,thank you evenybody -------------------------------------------------------------- To reply to this message visit the message page: http://community.jboss.org/message/520555#520555