CODEWITHSUNDEEP
javadownloadvaadin
Boris Mitioglov
Boris Mitioglov

Reputation: 1182

How to download file from server in Vaadin7?

I have FileResource

FileResource curResource = new FileResource(new File(basepath +
                                "/WEB-INF/docs/"+path+".pdf"));

and i want save this file from browser on the computer by click the button. How can i do this in Vaadin 7? Thanks

I try something like this:

ExternalResource resource = new ExternalResource(basepath +
                                "/WEB-INF/icons/"+"block_16.png");
Page.getCurrent().open(resource.getURL(),"Download",true);

but i have empty about:blank page and nothing happens...

Upvotes: 7

Views: 12409

Answers (2)

Nhat Nam NGUYEN
Nhat Nam NGUYEN

Reputation: 1272

The problem of this solution is that: The file name and file content must be known before you call the fd.extend.

If you want to build the file name and file content on demand, see the tutorial in Vaadin wiki page: Letting The User Download A File

Upvotes: 8

Boris Mitioglov
Boris Mitioglov

Reputation: 1182

I resolve my problem! 

private String basepath = VaadinService.getCurrent()
            .getBaseDirectory().getAbsolutePath();
private Button saveExcel = new Button();
Resource res = new FileResource(new File(basepath +
                "/WEB-INF/docs/settings.xlsx"));
FileDownloader fd = new FileDownloader(res);
fd.extend(saveExcel);

It's so easy to download from server in Vaadin

Upvotes: 10

Related Questions