Setting setChunkedStreamingMode in HttpURLConnection fails to deliver data to server

Question

My server version is as follows on my dev machine:

Apache/2.2.21 (Win32) mod_fcgid/2.3.6

I have been testing HttpURLConnection as my project requires easy streaming capabilties. I have read a great synopsis from @BalusC on how to use the class.

Using java.net.URLConnection to fire and handle HTTP requests

The trouble I am currently having is when setting setChunkedStreamingMode. Regardless of what I set it to my stream doesn't seem to make it to the server the data stream is empty when my server api method/connection is called/made. However, if I remove it, it works fine.

I have seen another person with a similar issue:

Java/Android HttpURLConnection setChunkedStreamingMode not working with all PHP servers

But with no real resolution. I am unable to set it to setFixedLengthStreamingMode simply because the content (json) is variable in length.

This is NOT OK. I potentially will be transfering very large quantities of data and hence cannot have the data stored in memory.

My question is, how can I get setChunkedStreamingMode to play nice? Is it a server setup issue or can it be fixed in code?

EDIT I have now tested my code on my production server and it works no problem. I would however still like to know why my Apache server on my local machine fails. Any help is still much appreciated.

Answer 1

Try adding this HTTP header:

urlConnection.setRequestHeader("Transfer-Encoding","chunked");

I haved a problem like this: although I haved set the chunked HTTP streaming mode (urlConnection.setChunkedStreamingMode(0) ), it not worked, but putting the HTTP header above it works fine.