用Google的API有JSONException生成解决思路

private String doTranslate(String original, String from,            String to){        String result = translate.getResources().getString(                R.string.translation_error);        HttpURLConnection con = null;        Log.d(TAG, "doTranslate(" + original + ", " + from + ", "                + to + ")");                try{            // Check if task has been interrupted            if(Thread.interrupted())                throw new InterruptedException();                        // Build RESTful query for Google API            String q = URLEncoder.encode(original, "UTF-8");            URL url = new URL(                    "http://ajax.googleapis.com/ajax/services/language/translate"                    + "?v=1.0" + "&q=" + q + "&langpair=" + from                    + "%7C" + to);            con = (HttpURLConnection)url.openConnection();            con.setReadTimeout(10000 /* milliseconds */);            con.setConnectTimeout(15000 /* milliseconds */);            con.setRequestMethod("GET");            con.addRequestProperty("Referer",                     "http://www.pragprog.com/titles/eband3/hello-android");            con.setDoInput(true);                        // Start the query            con.connect();                        // Check if task has been interrupted            if(Thread.interrupted())                throw new InterruptedException();                        // Read results from the query            BufferedReader reader = new BufferedReader(                    new InputStreamReader(con.getInputStream(), "UTF-8"));            String payload = reader.readLine();            reader.close();                        // Parse to get translated text            JSONObject jsonObject = new JSONObject(payload);            result = jsonObject.getJSONObject("responseData")                    .getString("translatedText")                    .replace("&#39", ".")                    .replace("&amp", "&");                        // Check if task has been interrupted            if(Thread.interrupted())                throw new InterruptedException();        }catch(IOException e){            Log.e(TAG, "IOException", e);        }        catch(JSONException e){            Log.e(TAG, "JSONException", e);        }        catch(InterruptedException e){            Log.d(TAG, "InterruptedException", e);            result = translate.getResources().getString(                    R.string.translation_interrupted);        }        finally{            if(con != null){                con.disconnect();            }        }                // All done        Log.d(TAG, "   -> returned " + result);        return result;    }