Android, get page contents with Post method and parameters

DownloadWebPageTask task = new DownloadWebPageTask();  task.execute("http://yahoo.com","param1","value1"); 

private class DownloadWebPageTask extends AsyncTask<String, Void, String> {

        @Override

        protected String doInBackground(String... urls) {

        // url, param1Name, param1Value,...

        

        if(urls.length < 3) return null;

        

        String url = urls[0];

        

        HttpClient client = new DefaultHttpClient();

        

    HttpPost post = new HttpPost(url);

    List<NameValuePair> pairs = new ArrayList<NameValuePair>();

    

    pairs.add(new BasicNameValuePair(urls[1], urls[2]));

    

    String resString = null;

    try{

    post.setEntity(new UrlEncodedFormEntity(pairs));

    

    HttpResponse res = client.execute(post);

    

    HttpEntity entity = res.getEntity();

        resString = EntityUtils.toString(entity); 

                

    }catch(Exception e){

    Log.e(null, e.toString());

    }

        

    return resString;

        }

        @Override

        protected void onPostExecute(String result) {

        

        //do something

        }

}

ref : http://www.wikihow.com/Execute-HTTP-POST-Requests-in-Android