[Jprogramming] Parsing multipart/form-data in JHP

[bill lam]

Sherlock, Ric wrote:
> It seems to me (someone with no indepth knowledge of the area) that HTTP
> in general must be able to work with files bigger than "a few megabytes"
> given that many HTTP downloads of software are 50MB+. Having said that,
> 50MB should still fit in the memory of most servers, as long as many
> people are not uploading at once.
> 
> Is there a difference between upload & download in this regard, or is it
> just because downloads are 1 computer to many computers and uploads are
> potentially many computers to 1?

I'm not familiar with JHP. AFAIK most http servers (at least apache) have a 
configurable upper limit on the size of post data per request. The default limit 
can be changed in its conf file.  I guess this is needed for security reason. 
Http server may also receive data in-memory up to say 500kB then flush it to a 
temp file and continue receiving.  After all data is received the server will 
send the content to cgi client via stdio/stdout. I guess this is the usual 
scenario that data is buffered before sending to cgi client.

-- 
regards,
bill