Java — файл не загружается на сервер из-за httpResponse

/**
* Uploading the file to server
* */
private class UploadFileToServer extends AsyncTask<Void, Integer, String> {
@Override
protected void onPreExecute() {
// setting progress bar to zero
progressBar.setProgress(0);
super.onPreExecute();
}

@Override
protected void onProgressUpdate(Integer... progress) {
// Making progress bar visible
progressBar.setVisibility(View.VISIBLE);

// updating progress bar value
progressBar.setProgress(progress[0]);

// updating percentage value
txtPercentage.setText(String.valueOf(progress[0]) + "%");
}

@Override
protected String doInBackground(Void... params) {
return uploadFile();
}

@SuppressWarnings("deprecation")
private String uploadFile() {
String responseString = null;

HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(“http://www.example.com/example/fileUpload.php”);//example site

try {
AndroidMultiPartEntity entity = new AndroidMultiPartEntity(
new ProgressListener() {

@Override
public void transferred(long num) {
publishProgress((int) ((num / (float) totalSize) * 100));
}
});

File sourceFile = new File(filePath);

// Adding file data to http body
entity.addPart("image", new FileBody(sourceFile));

// Extra parameters if you want to pass to server
entity.addPart("website",
new StringBody("www.androidhive.info"));
entity.addPart("email", new StringBody("[email protected]"));

totalSize = entity.getContentLength();
httppost.setEntity(entity);

// Making server call
HttpResponse response = httpclient.execute(httppost);
HttpEntity r_entity = response.getEntity();

int statusCode = response.getStatusLine().getStatusCode();
if (statusCode == 200) {
// Server response
responseString = EntityUtils.toString(r_entity);
} else {
responseString = "Error occurred! Http Status Code: "+ statusCode;
}

} catch (ClientProtocolException e) {
responseString = e.toString();
} catch (IOException e) {
responseString = e.toString();
}

return responseString;

}

@Override
protected void onPostExecute(String result) {
Log.e(TAG, "Response from server: " + result);

// showing the server response in an alert dialog
showAlert(result);

super.onPostExecute(result);
}

}

/**
* Method to show alert dialog
* */
private void showAlert(String message) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage(message).setTitle("Response from Servers")
.setCancelable(false)
.setPositiveButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// do nothing
}
});
AlertDialog alert = builder.create();
alert.show();
}

КОД PHP ДЛЯ СЕРВЕРА fileUpload.php

<?php

// Path to move uploaded files
$target_path = "uploads/";

// array for final json respone
$response = array();

// getting server ip address
$server_ip = gethostbyname(gethostname());

// final file url that is being uploaded
$file_upload_url = 'http://' . $server_ip . '/' . 'AndroidFileUpload' . '/' . $target_path;if (isset($_FILES['image']['name'])) {
$target_path = $target_path . basename($_FILES['image']['name']);

// reading other post parameters
$email = isset($_POST['email']) ? $_POST['email'] : '';
$website = isset($_POST['website']) ? $_POST['website'] : '';

$response['file_name'] = basename($_FILES['image']['name']);
$response['email'] = $email;
$response['website'] = $website;

try {
// Throws exception incase file is not being moved
if (!move_uploaded_file($_FILES['image']['tmp_name'], $target_path)) {
// make error flag true
$response['error'] = true;
$response['message'] = 'Could not move the file!';
}

// File successfully uploaded
$response['message'] = 'File uploaded successfully!';
$response['error'] = false;
$response['file_path'] = $file_upload_url . basename($_FILES['image']['name']);
} catch (Exception $e) {
// Exception occurred. Make error flag true
$response['error'] = true;
$response['message'] = $e->getMessage();
}
} else {
// File parameter is missing
$response['error'] = true;
$response['message'] = 'Not received any file!F';
}

// Echo final json response to client
echo json_encode($response);
?>

Выше кода ответ клиенту ниже ошибки:

httpResponse не отвечает. Исключением является org.apache.http.NoHttpResponseException: целевой сервер не отвечает.
HttpResponse response = httpclient.execute (httppost);