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copied!<p>I think the best and correct way is this</p> <pre><code>private static final String gurl = "www.googleapis.com"; private static final String gpath = "/language/translate/v2/detect"; public String detectLangGooglePost(String text) throws SystemException { List<NameValuePair> qparams = new ArrayList<NameValuePair>(); qparams.add(new BasicNameValuePair("key", key)); URI uri; try { uri = URIUtils.createURI("https", gurl, -1, gpath, URLEncodedUtils.format(qparams, "UTF-8"), null); } catch (URISyntaxException e) { throw new SystemException("Possibly invalid URI parameters", e); } HttpResponse response = getPostResponse(uri, text); StringBuilder builder = getBuilder(response); String language = getLanguage(builder); return language; } private HttpResponse getPostResponse(URI uri, String text) throws SystemException { List<NameValuePair> qparams = new ArrayList<NameValuePair>(); qparams.add(new BasicNameValuePair("q", text)); HttpResponse response; HttpClient httpclient = new DefaultHttpClient(); HttpPost httpPost = new HttpPost(uri); httpPost.addHeader("X-HTTP-Method-Override", "GET"); try { httpPost.setEntity(new UrlEncodedFormEntity(qparams)); response = httpclient.execute(httpPost); } catch (Exception e) { throw new SystemException("Problem when executing Google get request", e); } int sc = response.getStatusLine().getStatusCode(); if (sc != HttpStatus.SC_OK) throw new SystemException("google status code : " + sc); return response; } private StringBuilder getBuilder(HttpResponse response) throws SystemException { HttpEntity entity = response.getEntity(); if (entity == null) throw new SystemException("response entity null"); StringBuilder builder = new StringBuilder(); BufferedReader in = null; String str; try { in = new BufferedReader(new InputStreamReader(entity.getContent())); while ((str = in.readLine()) != null) builder.append(str); } catch (IOException e) { throw new SystemException("Reading input stream of http google response entity problem", e); } finally { IOUtils.closeQuietly(in); } if (builder.length() == 0) throw new SystemException("content stream of response entity empty has zero length"); return builder; } private String getLanguage(StringBuilder builder) throws SystemException { JSONObject data = null; JSONArray detections = null; String language = null; JSONObject object = (JSONObject) JSONValue.parse(builder.toString()); if (object == null) throw new SystemException("JSON parsing builder object returned null"); if (object.containsKey("data") == false) throw new SystemException("JSONObject doesn't contain data key"); data = (JSONObject) object.get("data"); detections = (JSONArray) data.get("detections"); if (detections == null) throw new SystemException("JSON detections is null"); JSONObject body = (JSONObject) ((JSONArray) detections.get(0)).get(0); if (body == null) throw new SystemException("detections body is null"); if (body.containsKey("language") == false) throw new SystemException("language key is null"); language = (String) body.get("language"); if (language == null || language.equals(unknown)) throw new SystemException("Google lang detection - resulting language : " + language); return language; } </code></pre>

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