How to print out returned message from HttpResponse?

Use ResponseHandler. One line of code. See here and here for sample Android projects using it.

public void postData() {    // Create a new HttpClient and Post Header    HttpClient httpclient = new DefaultHttpClient();    HttpPost httppost = new HttpPost("http://www.yoursite.com/user");    try {        // Add your data        List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);        nameValuePairs.add(new BasicNameValuePair("id", "12345"));        nameValuePairs.add(new BasicNameValuePair("stringdata", "AndDev is Cool!"));        httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));        // Execute HTTP Post Request        ResponseHandler<String> responseHandler=new BasicResponseHandler();        String responseBody = httpclient.execute(httppost, responseHandler);        JSONObject response=new JSONObject(responseBody);    } catch (ClientProtocolException e) {        // TODO Auto-generated catch block    } catch (IOException e) {        // TODO Auto-generated catch block    }} 

add combination of this post and complete HttpClient at - http://www.androidsnippets.org/snippets/36/

I would just do it the old way. It's a more bulletproof than ResponseHandler, in case you get different content types in the response.

ByteArrayOutputStream outstream = new ByteArrayOutputStream();response.getEntity().writeTo(outstream);byte [] responseBody = outstream.toByteArray();

I used the following code

BufferedReader r = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));StringBuilder total = new StringBuilder();String line = null;while ((line = r.readLine()) != null) {   total.append(line);}r.close();return total.toString();