RestTemplate for Android is not properly converting json to http request for postForObjects method -

i trying post json object .net web service:

resttemplate resttemplate = new resttemplate(); resttemplate.getmessageconverters().add(new gsonhttpmessageconverter()); answer[] answers = resttemplate.postforobject(url, new gson().tojson(request), answer[].class); 

the generated json looks fine far:

{"request":1234} 

but when sent web service of resttemplate content of http request kind of messed up:

"{\"request\":1234}" 

and service responds error code 400 bad request

edit: found problem

the problem encoded object twice. resttemplate encodes object json.

the working code is:

resttemplate resttemplate = new resttemplate(); resttemplate.getmessageconverters().add(new gsonhttpmessageconverter()); answer[] answers = resttemplate.postforobject(url, request, answer[].class); 

use method post json on server  public string postdata(string url, jsonobject obj) {         // create new httpclient , post header         string inserttransactionresult = null;         httpclient httpclient = new defaulthttpclient();         httpparams myparams = new basichttpparams();         httpconnectionparams.setconnectiontimeout(myparams, 1000);         httpconnectionparams.setsotimeout(myparams, 1000);          try {              httppost httppost = new httppost(url.tostring());             httppost.setheader("content-type", "application/json");             stringentity se = new stringentity(obj.tostring());             se.setcontentencoding(new basicheader(http.content_type,                     "application/json"));             httppost.setentity(se);              httpresponse response = httpclient.execute(httppost);             result = entityutils                     .tostring(response.getentity());          } catch (clientprotocolexception e) {          } catch (ioexception e) {         }         return result;     }