Re: HttpClient 4.0 httppost with parameters

[Oleg Kalnichevski]

Tobias Frei wrote:

Hello together,
i am a new subsciber to this mailing list and i hope that anyone can help.

I am trying to simulate a login to a webpage via a httppost-request. When i 
send the post, i cannot see the pair parameter/value in the post-data section 
of my http sniffer. When i try to send the information via a webbrowser, i can 
see the right data in the sniffer. Strangely in the header of the request, i 
see a content-length of 23. Where are the parameters, what is wrong with my 
request?

Here is the relevant part of my code:

public void sendLoginInformation(){
                
                HttpPost httppost=new HttpPost(ggserverurl+phpexec);
                HttpResponse response;
                HttpEntity entity;
                BufferedReader bufferedreader;
                List <NameValuePair> parameters = new ArrayList 
<NameValuePair>();
                parameters.add(new BasicNameValuePair("a", "a"));
                parameters.add(new BasicNameValuePair("b", "b"));
                parameters.add(new BasicNameValuePair("c", "c"));
                parameters.add(new BasicNameValuePair("d", "e"));
                parameters.add(new BasicNameValuePair("e", "f"));
                parameters.add(new BasicNameValuePair("f", "g"));
                try {
                        UrlEncodedFormEntity sendentity = new 
UrlEncodedFormEntity(parameters, HTTP.UTF_8);
                        httppost.setEntity(sendentity);
                        response=httpclient.execute(httppost);
                        entity=response.getEntity();
                        /**if (entity!=null){
                                bufferedreader=new BufferedReader(new 
InputStreamReader (new BufferedInputStream(entity.getContent())));
                                int i;
                                
for(i=0;i<1000;i++)System.out.println(bufferedreader.readLine());
                        }**/
                } catch (ClientProtocolException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                } catch (IOException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                }
        }

Help would be appreciated.

You can use wire logging to see what gets sent across the wire

http://hc.apache.org/httpcomponents-client/logging.html

Oleg

Thanks

Tobias

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