How to download a file via a button click i GWT?

Question

I hava a servleta that serves files?

I\'m building a page with a \"Download\" button usung a GWT.

How to make a GWT client download a file in an onClick even

Answer 1

None of the solutions above worked for me, then I realized I already have an implementation working. Here's how I do it:

Window.open(fileUrl, "_parent", "");

But the key is in your servlet:

response.setHeader("Content-Disposition", "attachment; filename=\"" + fileName + "\"");

This solution will NOT open new window and instead directly opens the "Save As" dialog. Best of both worlds imo.