如何在Java Android App中使用从Webserver检索到的JSON动态创建和使用对象

import android.os.AsyncTask;
import android.util.Log;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {

    private static final String TAG = "MainActivity";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // 发送HTTP请求并获取JSON数据
        new FetchDataAsyncTask().execute("http://example.com/data.json");
    }

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

        @Override
        protected String doInBackground(String... urls) {
            String result = "";
            HttpURLConnection urlConnection = null;
            try {
                URL url = new URL(urls[0]);
                urlConnection = (HttpURLConnection) url.openConnection();
                InputStream inputStream = urlConnection.getInputStream();
                BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
                StringBuilder stringBuilder = new StringBuilder();
                String line;
                while ((line = reader.readLine()) != null) {
                    stringBuilder.append(line);
                }
                result = stringBuilder.toString();
            } catch (IOException e) {
                Log.e(TAG, "Error fetching data", e);
            } finally {
                if (urlConnection != null) {
                    urlConnection.disconnect();
                }
            }
            return result;
        }

        @Override
        protected void onPostExecute(String result) {
            super.onPostExecute(result);
            if (!result.isEmpty()) {
                try {
                    // 解析JSON数据
                    JSONArray jsonArray = new JSONArray(result);
                    List<MyObject> objects = new ArrayList<>();
                    for (int i = 0; i < jsonArray.length(); i++) {
                        JSONObject jsonObject = jsonArray.getJSONObject(i);
                        String name = jsonObject.getString("name");
                        int age = jsonObject.getInt("age");
                        MyObject object = new MyObject(name, age);
                        objects.add(object);
                    }

                    // 在应用程序中使用对象
                    for (MyObject object : objects) {
                        Log.d(TAG, "Name: " + object.getName() + ", Age: " + object.getAge());
                    }
                } catch (JSONException e) {
                    Log.e(TAG, "Error parsing JSON", e);
                }
            }
        }
    }

    private class MyObject {
        private String name;
        private int age;

        public MyObject(String name, int age) {
            this.name = name;
            this.age = age;
        }

        public String getName() {
            return name;
        }

        public int getAge() {
            return age;
        }
    }
}