如何从url获取文本并将其放入textView？

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

<TextView
    android:id="@+id/textView"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

private class DownloadTextTask extends AsyncTask<String, Void, String> {
    protected String doInBackground(String... urls) {
        try {
            URL url = new URL(urls[0]);
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            connection.setRequestMethod("GET");
            connection.connect();

            InputStream inputStream = connection.getInputStream();
            BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
            StringBuilder stringBuilder = new StringBuilder();
            String line;
            while ((line = reader.readLine()) != null) {
                stringBuilder.append(line);
            }
            reader.close();
            inputStream.close();
            connection.disconnect();

            return stringBuilder.toString();
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

    protected void onPostExecute(String result) {
        if (result != null) {
            TextView textView = findViewById(R.id.textView);
            textView.setText(result);
        }
    }
}

String url = "https://example.com/text.txt";
DownloadTextTask task = new DownloadTextTask();
task.execute(url);