[jboss-user] [JBoss Seam] - Re: Downloading Files

[goku2]

Put this action in some Seam component.

<s:link action="{someSeamComponent.download}" value="Download"/>

And the action in SomeSeamComponent


  | public void download() {
  |                //Here you get the entity that has a byte array with the data
  | 	SomeEntity entity = getEntityFromEntityManager();
  | 
  | 		
  | 	FacesContext facesContext = FacesContext.getCurrentInstance();
  | 	HttpServletResponse response = (HttpServletResponse) facesContext
  | 				.getExternalContext().getResponse();
  | 	response.setContentType(entity.getContentType());
  | //Asume a data property inside entity
  | 	byte[] data = entity.getData();
  | 	response.setContentLength(data.length);
  | 	response.setHeader("Content-disposition", "inline; filename=\""
  | 				+ entity.getFileName() + "\"");
  | 
  | 		try {
  | 
  | 			OutputStream out = response.getOutputStream();
  | 
  | 			out.write(data);
  | 
  | 			out.flush();
  | 			out.close();
  | 
  | 			facesContext.responseComplete();
  | 		} catch (IOException ex) {
  | 			FacesMessages.instance().add(
  | 					"Error while downloading the file: " + entity.getFileName());
  | 		}
  | 
  | 	}
  | 
  | 

Cheers

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