Download files component

[Mary Cole]

Hi,
Is there a component/sample code to download files from a web page using JSF?

Please advice

[Jason Lee]

Originally posted by Mary Cole:
Hi,
Is there a component/sample code to download files from a web page using JSF?

Please advice

Off hand, assuming I understand your request, I know of two such components. One is my own download component in the Mojarra Scales project: https://scales.dev.java.net/#download with a live demo here: http://jsftemplating.org/mojarra-scales-demo-facelets/download.jsf

RichFaces/Ajax4Jsf also offers a4j:mediaOutput: http://labs.jboss.org/file-access/default/members/jbossrichfaces/freezone/docs/devguide/en/html/RichFacesComponentsLibrary.html (section 6.12) and a live demo of that here: http://livedemo.exadel.com/richfaces-demo/richfaces/mediaOutput.jsf

[Mary Cole]

I didn't get much info from both the sites...actually, I have a filename (.pl or .zip , or .doc) with a hyperlink ( a command link ) to it on the web page..on click of the link, it should call the method on the bean to get the file contents and display the save open dialog box so that the user can view or downlad the file.. if possible I would prefer not to refresh the page..Ajaxit

any suggestions?

[ March 25, 2008: Message edited by: Mary Cole ]
[ March 25, 2008: Message edited by: Mary Cole ]

[Ketan Jambhekar]

Hi,
i dont think you need any special components to acheive this functionality.
You can use the link as a commandLink and call a method which does the following

    
HttpServletResponse response = (HttpServletResponse) FacesContext.getCurrentInstance()
.getExternalContext().getResponse();
response.setContentType(getContentType());
response.setHeader("Content-Disposition","attachment; filename="+getFileName());
response.setContentLength(getLength());
ServletOutputStream ouputStream = response.getOutputStream();
ouputStream.write(getByte(), 0, getByte().length);
ouputStream.flush();
ouputStream.close();

You need to write your own custom methods whereever applicable in the above scenario.

Thanks,
Ketan.