public static String post(String url,String json) {
        
        /* HTTP Post */
        HttpPost httpRequest = new HttpPost(url);
        // param NameValuePair[]
        // request.getParameter("name")
        List<NameValuePair> params = new ArrayList<NameValuePair>();
        params.add(new BasicNameValuePair("jsonParameter", json));

        try {
            // HTTP request
            httpRequest.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));
            // HTTP response
            
            defaultHttpClient = new DefaultHttpClient();
            
            [color=#FF0000]HttpResponse httpResponse = defaultHttpClient.execute(httpRequest);[/color]
            
            // 200 ok
            if (httpResponse.getStatusLine().getStatusCode() == 200) {
                result= EntityUtils.toString(httpResponse
                        .getEntity());
                return result;
            }
        } catch (ClientProtocolException e) {
            e.printStackTrace();
            return null;
        }
    return result;
    }