hello ppl, as usual, i have a problem :)
My application needs to allow the user to download files from the server.
I used on my jspx:
<a4j:commandLink
action="#{versementsController.generateFile}"
value="#{msg.generateFile}" />
on versementsController the file is generated and then added to the response with:
public static void attachFileToResponse(String fileName, String fileContent,String contentType) throws Exception{
OutputStream out;
HttpServletResponse response=getResponse();
if( response != null ){
response.setContentType(contentType);
response.setHeader( "Content-Disposition",
"attachment;filename="+fileName);
response.setContentLength(fileContent.length());
out = response.getOutputStream( );
}
else{
out = new FileOutputStream( fileName );
}
try {
out.write(fileContent.getBytes());
}
catch(Exception e ){
handleException( e );
}
finally{
try{
out.close( );
}
catch( Exception e ){
handleException( e );
}
finally{
if( response != null ){
// there cannot be HTTP multipart response. if the page needs refreshing, it MUST be done by another request
FacesContext.getCurrentInstance().responseComplete();
}
}
}
}
where contentType="application/force-download"
The problem is that the response is shown in the browser window when the right behaviour is that the Save As... window should appear.
I solved this problem by using h:commandLink, but i was wondering what could cause that behaviour?
