Using java to submit a file in on a webpage form

Hi all
Does anyone know how to submit a file to a form with a <input 'file'> field?
What I'm really looking for here is what the format of the reply should be. Normally, form data is like
?forumID=31&name=tjacobs01
but file data needs to include at least 2 things: The name of the file and the data itself. How is this done? Anyone know?
BTW, if anyone knows of an apache or other open source solution to this, that would be fabulous!
Thanks!
-T

I tried wireshark but couldn't figure it out.
After lunch, I came back, took down my firewall, started up tomcat and tried hitting myself with the file upload request... I think I've got everything I need now. Thanks for the help paul.
BTW, there's this separator thing that separates sections of the multi-part content. It looks like
---------------------------7d73991030670
The dashes all stay the same but the numbers and letters change... Does anyone know how this is generated? To me, it looks like it might be a hex representation of the time. Does anyone know for sure?
- Just tried it. it's definitely not the hex for System.currentTimeMillis
Edited by: tjacobs01 on Dec 11, 2007 11:18 AM

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