Android POST Json to API

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

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

import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;

public class JsonPostTask extends AsyncTask<String, Void, String> {

    private static final String TAG = "JsonPostTask";

    @Override
    protected String doInBackground(String... params) {
        String apiUrl = params[0];
        String jsonData = params[1];

        HttpURLConnection urlConnection = null;
        try {
            URL url = new URL(apiUrl);
            urlConnection = (HttpURLConnection) url.openConnection();
            urlConnection.setRequestMethod("POST");
            urlConnection.setRequestProperty("Content-Type", "application/json");
            urlConnection.setDoOutput(true);

            OutputStream outputStream = new BufferedOutputStream(urlConnection.getOutputStream());
            outputStream.write(jsonData.getBytes());
            outputStream.flush();

            int statusCode = urlConnection.getResponseCode();
            if (statusCode == HttpURLConnection.HTTP_OK) {
                InputStream inputStream = urlConnection.getInputStream();
                BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
                StringBuilder response = new StringBuilder();
                String line;
                while ((line = bufferedReader.readLine()) != null) {
                    response.append(line);
                }
                bufferedReader.close();
                return response.toString();
            } else {
                Log.e(TAG, "HTTP POST Request Failed with Error code: " + statusCode);
            }
        } catch (IOException e) {
            Log.e(TAG, "Error in HTTP POST Request: " + e.getMessage());
        } finally {
            if (urlConnection != null) {
                urlConnection.disconnect();
            }
        }
        return null;
    }

    @Override
    protected void onPostExecute(String result) {
        if (result != null) {
            // 处理API接口返回的结果
            try {
                JSONObject jsonResponse = new JSONObject(result);
                // 解析返回的JSON数据
                // ...
            } catch (JSONException e) {
                Log.e(TAG, "Error in parsing JSON response: " + e.getMessage());
            }
        }
    }
}

String apiUrl = "https://example.com/api";
String jsonData = "{\"name\":\"John\",\"age\":30}";

JsonPostTask jsonPostTask = new JsonPostTask();
jsonPostTask.execute(apiUrl, jsonData);