How to send a HTTP Post request from my android project to google app engine?

Question

I am working on an android project. I am new in android programming. How can i send a HTTP post request from my project to google app engine? I searched and found this code for sending request from android but its not working. Following is the code i am using:

try{
    HttpClient httpclient = new DefaultHttpClient();
    HttpPost httppost = new HttpPost("http://www.example.com/servleturl");

    List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
    nameValuePairs.add(new BasicNameValuePair("username", userEmailStr));
    nameValuePairs.add(new BasicNameValuePair("password", userPasswordStr));
    httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

    // Execute HTTP Post Request
    HttpResponse response = httpclient.execute(httppost);

    info.setText(response.toString());
} catch (ClientProtocolException e) {
    // TODO Auto-generated catch block
} catch (IOException e) {
    // TODO Auto-generated catch block
}

Thanks for help in advance.

Answer 1

I didn't give permission to user of my app to use internet. For doing that we just need to add this line in AndroidManifest.xml.

    <uses-permission android:name="android.permission.INTERNET" />