I extracted the fragments to two standalone programs reading a file, and
again, with 4.1 the upload succeeds, with 3.1 it fails. I sniffed the
network traffic, and I found two relevant differences: with 4.1 the
transfer encoding is chunked, and connection is set to keep-alive. So I
set the transfer encoding and a "Connection" header in 3.1, but the
problem persists.
Two differences persist, and I couldn't find a way to backport them to
3.1: chunk size is 800 in 4.1 and 1000 in 3.1; and the order of HTTP
headers is different in each case.
I have no other idea, any suggestion is welcome.
Francesco.
Il 08/03/2011 14.08, Francesco Marchetti-Stasi ha scritto:
Hello,
in one of the servlet of my web application I receive a multipart
form, from which I have to extract the file input stream and send it
via PUT to an existing servlet on an Alfresco repository.
I managed to accomplish this with httpclient 4.1, with the following
code fragment:
HttpClient httpclient = new DefaultHttpClient();
HttpPut httpput = new HttpPut(uploadUrl) ;
InputStreamEntity entity = new
InputStreamEntity(is, -1) ;
httpput.setEntity(entity);
HttpResponse alfResponse =
httpclient.execute(httpput);
HttpEntity resEntity = alfResponse.getEntity();
System.out.println("Status Line from alfresco:
" + alfResponse.getStatusLine().toString());
resEntity.getContent().close() ;
Unfortunately I have to use httpclient 3.1, since I also have to use a
third parti library (Remote Alfresco Access by Rivet logic) which
needs this version. So I tried to translate the above into the following:
HttpClient httpclient = new HttpClient();
PutMethod method = new PutMethod(uploadUrl);
RequestEntity entity = new
InputStreamRequestEntity(is) ;
method.setRequestEntity(entity) ;
int statusCode =
httpclient.executeMethod(method);
is.close() ;
System.out.println("Status code: " +
statusCode) ;
but in ths case I get a "417" status code, corresponding to the
dreadful "Expectation Failed" message (I have seen it a few times
during my first attempts, in which I was using 4.0).
There are still a few tests I can try (first and foremost, sniffing
the network traffic in the two cases), but in the meantime I thought I
could ask if anybody has experience using PutMethod with 3.1, and if
there is something clearly wrong with my code...
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