Question

 public FileDownloadController() {          
    InputStream stream = ((ServletContext)FacesContext.getCurrentInstance().getExternalContext().getContext()).getResourceAsStream("/images/optimusprime.jpg");  
    file = new DefaultStreamedContent(stream, "image/jpg", "downloaded_optimus.jpg");  
}  

In this above code we can download only jpg file. i want to download any format of file selected in UI is there any option?

Answer 1

You need to pass a MIME type other than "image/jpg" to the DefaultStreamedContent constructor. Specifically, pass the MIME type of whatever it is that you’re trying to download, or don’t pass a MIME type at all.