Error message: Cannot forward after response has been commited

[sonia pandit]

  public void download(){
	FacesContext context = FacesContext.getCurrentInstance();			 
	 HttpServletRequest request = (HttpServletRequest) context.getExternalContext().getRequest();		
	// request.setAttribute("selected",getSelected());
   // HttpSession session = request.getSession();
   // session.setAttribute("selected", selected);
    request.setAttribute("selected", selected);
    HttpServletResponse response = (HttpServletResponse)context.getExternalContext().getResponse();
	 try {
		//context.getExternalContext().redirect(request.getContextPath()+"/FileServlet");
	    request.getRequestDispatcher("/DownloadServlet").forward(request, response);
	 }catch (ServletException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}  catch (IOException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}  
}  

This is the error message i get with the code above. If I use the redirect instead, i am getting a null for the request.getAttribute("selected") in the DownloadServlet. How do I do this?

Thanks,

Sonia

[agnu sargar]

hello

might be you are re-forwarding a response which is already sent once(committed). you can check for null by setting an attribute with ServletContext object which will work.

Agnu.

[sujith Acharya]

Since you are using JSF framework, why are you going out of this framework? framework provides you the facility to seperate your business logic and navigation part. I dont think its necessary to forward the request to Servlet from a manged bean