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List:       struts-user
Subject:    Re: FormFile.getFileData() not throwing FileNotFoundException?
From:       "Martin Gainty" <mgainty () hotmail ! com>
Date:       2005-07-31 12:30:11
Message-ID: BAY103-DAV7497EF9FBECEB20B87884AEC00 () phx ! gbl
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Folks-
I found an example of implementing a FileUploadBean via a taglib. Take note 
of the doUpload method reads the InputStream from the request which of 
course bring back 0 length string and  you can take it from there..
http://forums.devshed.com/t56547/s.html
HTH,
Martin-
----- Original Message ----- 
From: "Laurie Harper" <laurie@holoweb.net>
To: <user@struts.apache.org>
Sent: Saturday, July 30, 2005 6:48 PM
Subject: Re: FormFile.getFileData() not throwing FileNotFoundException?


> nicole.wollgast wrote:
>> I am using Struts 1.1. I have found the following problem when using
>> FormFile. If the user enters a nonexistent path into a <html:file> (not
>> using the FileSelector, but inserting the file directly into the input
>> field), struts doesn't recognize, that the file doesn't exist. Even a
>> call to FormFile.getFileData() doesn't throw a FileNotFoundException, it
>> just returns an empty byte[]. Is this a known bug in Struts? Or what else 
>> can go wrong here?
>
> It's been some time since I looked at the code underlying this behaviour, 
> but as I recall there is no way to distinguish between the user submitting 
> a non-existent file and a zero-length file. You need to handle both the 
> same way and either tell the user 'the file you selected is empty or does 
> not exist' or, depending on what makes sense for your application, just 
> accept the zero-length file irrespective of whether it existed client side 
> or not.
>
> Unfortunately you can't solve this client side either (at least not 
> trivially).
>
> L.
> -- 
> Laurie, Open Source advocate, Java geek and novice blogger:
> http://www.holoweb.net/laurie
>
>
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