Hi there, as far as I know Tomcat has no trouble with multipart forms, but
I'm no expert in this area...

But I have gone with the mechanism I proposed in my original post (it is
running on Resin, but I really don't see why this should affect the
results). It has been somewhat complicated by Oracle blobs (I think there is
something odd about their jdbc driver - but again, I am new to blobs, so it
could just be me with incorrect preconceptions).

Anyway, I use "commons-fileupload" to upload the image, then I write it to
the file system as a "temporary file", and do some funny gymnastics
streaming the file data to the oracle blob in the database.

Seems to work. I think it might be possible to avoid the step of writing the
file to the file system, as commons-fileupload provides an InputStream with
the data, but I haven't investigated that yet.

FYI, my HTML form looks like this:

<form action="/proj/servlet/Uploadservlet" method="post" name="uploadform"
enctype="multipart/form-data">
 <input type="hidden" name="UPLOAD_ID" value="<%=(String)data.get("ID")%>">
 <input type="hidden" name="UPLOAD_TYPE" value="PICTURE">
 <input type="file" name="uploadfile">
 <input type="submit">
</form>

This uploads the image file to my "Uploadservlet", which then handles
processing the data (with commons-fileupload), updating the database etc.
The UPLOAD_ID identifies the row in the database I am updating; and
UPLOAD_TYPE is used because other parts of the application also use this
servlet, and I have to identify myself as a "picture" upload.

Peter

I have built something like this with Resin, Apache Jakarta Commons
FileUpload and Software AG's Tamino.
No problems to upload files up to 15 MB, and even bigger as soon as we
modified some database parameters.

Hiran