将 POST 中的 JsonObject 从 android 发送到服务器

Question

我想发送这个jsonobject finalObject到这个服务器地址http://www.xxxx.com/app/pruebaurl我正在使用这个代码

     try {

                URL url = new URL("http://www.xxxx.com/app/pruebaurl");

                HttpURLConnection httpURLConnection = (HttpURLConnection)url.openConnection();
                httpURLConnection.setDoOutput(true);
                httpURLConnection.setRequestMethod("POST");
                httpURLConnection.setRequestProperty("Content-Type","application/json");
                httpURLConnection.setRequestProperty("Accept", "application/json");
                httpURLConnection.connect();

                OutputStream outputStream = httpURLConnection.getOutputStream();
                OutputStreamWriter outputStreamWriter = new OutputStreamWriter(outputStream, "UTF-8");
                outputStreamWriter.write(finalObject.toString());
                outputStreamWriter.flush();
                outputStreamWriter.close();

   BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(urlConnection.getInputStream(), "UTF-8"));

            String line = null;
            StringBuilder sb = new StringBuilder();

            while ((line = bufferedReader.readLine()) != null) {
                sb.append(line);
            }

            bufferedReader.close();
            result = sb.toString();

      }catch (Exception e) {
                e.printStackTrace();
      }

但是当我通过调试运行代码时，我注意到从行

跳转时

 httpURLConnection.connect();

到行

OutputStream outputStream = httpURLConnection.getOutputStream();

生成错误并转到异常，它告诉我以下内容

android.os.NetworkOnMainThreadException

我正在处理一个片段，我可以做些什么来修复这个错误。

Answer 1

在 android 中，您不能在主线程（UI 线程）上进行网络操作。请使用其他线程，如：How to fix android.os.NetworkOnMainThreadException?

使用 AsyncTask 或任何线程来解决这个问题。

Answer 2

您需要使用 AsyncTask 来执行网络操作。您不能在主线程上执行它。

将 POST 中的 JsonObject 从 android 发送到服务器

Send JsonObject in POST from android to server

java

android

json

httpurlconnection

server