ImageView siguiente = (ImageView) findViewById(R.id.imageView2);
        siguiente.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                Log.i("Vehiculos",vehiculos.getText().toString());

                miCC.setVehiclos(vehiculos.getText().toString());
                miCC.setAparcamiento(apar.getText().toString());
                miCC.setInfo(notas.getText().toString());

                Gson gson = new Gson();
                json = gson.toJson(miCC);

                Log.i("JSON",json);

                String result = makeRequest("urlWebService",json);

                Intent passIntent = new Intent();
                passIntent.setClass(Nuevo6.this,Menu.class);
                startActivity(passIntent);
            }
        });

public static String makeRequest(String uri, String json) {
        HttpURLConnection urlConnection;
        String url;
        String data = json;
        String result = null;
        try
        {
            urlConnection = (HttpURLConnection) ((new URL(uri).openConnection()));
            urlConnection.setDoOutput(true);
            urlConnection.setRequestProperty("Content-Type", "application/json");
            urlConnection.setRequestProperty("Accept", "application/json");
            urlConnection.setRequestMethod("POST");
            urlConnection.connect();

            OutputStream outputStream = urlConnection.getOutputStream();
            BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(outputStream, "UTF-8"));
            writer.write(data);
            writer.close();
            outputStream.close();

            BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(urlConnection.getInputStream(), "UTF-8"));
            String line = null; StringBuilder sb = new StringBuilder();
            while ((line = bufferedReader.readLine()) != null) {
                sb.append(line);
            }
            bufferedReader.close();
            result = sb.toString();
        }
        catch (UnsupportedEncodingException e) {
            e.printStackTrace(); }
        catch (IOException e) {
            e.printStackTrace(); }
        return result;
    }

if (android.os.Build.VERSION.SDK_INT > 9) {
            StrictMode.ThreadPolicy policy =
                    new StrictMode.ThreadPolicy.Builder().permitAll().build();
            StrictMode.setThreadPolicy(policy);
        }

public static String makeRequest(String json) {
        HttpURLConnection urlConnection;
        URL url;

        if (android.os.Build.VERSION.SDK_INT > 9) {
            StrictMode.ThreadPolicy policy =
                    new StrictMode.ThreadPolicy.Builder().permitAll().build();
            StrictMode.setThreadPolicy(policy);
        }

        try {
            url = new URL("http://www.miWebService.php");
        } catch (IOException e) {
            throw new RuntimeException(e);
        }

        String data = json;
        String result = null;
        try
        {
            urlConnection = (HttpURLConnection) url.openConnection();
            urlConnection.setDoOutput(true);
            urlConnection.setRequestProperty("Content-Type", "application/json");
            urlConnection.setRequestProperty("Accept", "application/json");
            urlConnection.setRequestMethod("POST");
            urlConnection.connect();

            OutputStream outputStream = urlConnection.getOutputStream();
            BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(outputStream, "UTF-8"));
            writer.write(data);
            writer.close();
            outputStream.close();

            BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(urlConnection.getInputStream(), "UTF-8"));
            String line = null; StringBuilder sb = new StringBuilder();
            while ((line = bufferedReader.readLine()) != null) {
                sb.append(line);
            }
            bufferedReader.close();
            result = sb.toString();
        }
        catch (UnsupportedEncodingException e) {
            e.printStackTrace(); }
        catch (IOException e) {
            e.printStackTrace(); }
        return result;
    }

public class RequestTask extends AsyncTask <String,String,String> {

    @Override
    public String doInBackground(String... params) {

        String uri= params[0];
        String json = params[1];
        /*--------------------------------------------*/
        HttpURLConnection urlConnection;
        String url;
        String data = json;
        String result = null;
        try
        {
            urlConnection = (HttpURLConnection) ((new URL(uri).openConnection()));
            urlConnection.setDoOutput(true);
            urlConnection.setRequestProperty("Content-Type", "application/json");
            urlConnection.setRequestProperty("Accept", "application/json");
            urlConnection.setRequestMethod("POST");
            urlConnection.connect();

            OutputStream outputStream = urlConnection.getOutputStream();
            BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(outputStream, "UTF-8"));
            writer.write(data);
            writer.close();
            outputStream.close();

            BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(urlConnection.getInputStream(), "UTF-8"));
            String line = null; StringBuilder sb = new StringBuilder();
            while ((line = bufferedReader.readLine()) != null) {
                sb.append(line);
            }
            bufferedReader.close();
            result = sb.toString();
        }
        catch (UnsupportedEncodingException e) {
            e.printStackTrace(); }
        catch (IOException e) {
            e.printStackTrace(); }
        return result;
        /*--------------------------------------------*/

    }

    @Override
    protected void onPreExecute() {
    }

    @Override
    public void onPostExecute(String result) {
        //result retorna valor obtenido por la petición.
    }

    @Override
    protected void onProgressUpdate(String... values) {
    }
}

//String result = makeRequest("urlWebService",json);
  String resultadoPeticion =  new RequestTask().execute(new String[]{"urlWebService",json}).get();

StrictMode.ThreadPolicy policy =
                    new StrictMode.ThreadPolicy.Builder().permitAll().build();
            StrictMode.setThreadPolicy(policy);