Are you calling this from an RPC? It looks like you are (rpc.
InvocationException<http://google-web-toolkit.googlecode.com/svn/javadoc/1.5/com/google/gwt/user/client/rpc/InvocationException.html>).
An RPC expects an RPC serialized response, not what it is getting. To get a
file back like this, you'll need to just open it like a new browser window.
i.e. window.open("yourServerUrl","_blank");
The above will get stopped by popup blockers. However, if you open it by
posting a form to the URL with a target="_blank" tag, it should just open.
If you're not using RPC, the docs say it is a communications error, which
could be many things.
Also, you might want to redact the titles of those images as they show your
whole package name.
Sincerely,
Joseph
~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*
Joseph R Lust
(919) 355-8785
[email protected]
On Mon, Jun 18, 2012 at 10:04 PM, tong123123 <[email protected]> wrote:
> I have added the catch (Exception e) in ExportServiceImpl.java and found
> there is no any exception, but when the rpc return to client, it go to
> onFailure with InvocationException as shown in attachment OnFailure.png. I
> don't know is this HTTP error.
>
> But what is the cause of this error?
>
>
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