Enviar una solicitud JSON HTTP POST desde Android

Estoy usando el siguiente código para enviar una solicitud http POST que envía un objeto a un servicio WCF. Esto funciona bien, pero ¿qué sucede si mi servicio WCF también necesita otros parámetros? ¿Cómo puedo enviarlos desde mi cliente de Android?

Este es el código que he escrito hasta ahora:

StringBuilder sb = new StringBuilder(); String http = "http://android.schoolportal.gr/Service.svc/SaveValues"; HttpURLConnection urlConnection=null; try { URL url = new URL(http); urlConnection = (HttpURLConnection) url.openConnection(); urlConnection.setDoOutput(true); urlConnection.setRequestMethod("POST"); urlConnection.setUseCaches(false); urlConnection.setConnectTimeout(10000); urlConnection.setReadTimeout(10000); urlConnection.setRequestProperty("Content-Type","application/json"); urlConnection.setRequestProperty("Host", "android.schoolportal.gr"); urlConnection.connect(); //Create JSONObject here JSONObject jsonParam = new JSONObject(); jsonParam.put("ID", "25"); jsonParam.put("description", "Real"); jsonParam.put("enable", "true"); OutputStreamWriter out = new OutputStreamWriter(urlConnection.getOutputStream()); out.write(jsonParam.toString()); out.close(); int HttpResult =urlConnection.getResponseCode(); if(HttpResult ==HttpURLConnection.HTTP_OK){ BufferedReader br = new BufferedReader(new InputStreamReader( urlConnection.getInputStream(),"utf-8")); String line = null; while ((line = br.readLine()) != null) { sb.append(line + "\n"); } br.close(); System.out.println(""+sb.toString()); }else{ System.out.println(urlConnection.getResponseMessage()); } } catch (MalformedURLException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); }finally{ if(urlConnection!=null) urlConnection.disconnect(); } 

Publicar parámetros usando POST: –

 URL url; URLConnection urlConn; DataOutputStream printout; DataInputStream input; url = new URL (getCodeBase().toString() + "env.tcgi"); urlConn = url.openConnection(); urlConn.setDoInput (true); urlConn.setDoOutput (true); urlConn.setUseCaches (false); urlConn.setRequestProperty("Content-Type","application/json"); urlConn.setRequestProperty("Host", "android.schoolportal.gr"); urlConn.connect(); //Create JSONObject here JSONObject jsonParam = new JSONObject(); jsonParam.put("ID", "25"); jsonParam.put("description", "Real"); jsonParam.put("enable", "true"); 

La parte que te perdiste está en lo siguiente … es decir, como sigue ..

 // Send POST output. printout = new DataOutputStream(urlConn.getOutputStream ()); printout.writeBytes(URLEncoder.encode(jsonParam.toString(),"UTF-8")); printout.flush (); printout.close (); 

El rest de lo que puedes hacer.

intenta algo como golpe:

 SString otherParametersUrServiceNeed = "Company=acompany&Lng=test&MainPeriod=test&UserID=123&CourseDate=8:10:10"; String request = "http://android.schoolportal.gr/Service.svc/SaveValues"; URL url = new URL(request); HttpURLConnection connection = (HttpURLConnection) url.openConnection(); connection.setDoOutput(true); connection.setDoInput(true); connection.setInstanceFollowRedirects(false); connection.setRequestMethod("POST"); connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); connection.setRequestProperty("charset", "utf-8"); connection.setRequestProperty("Content-Length", "" + Integer.toString(otherParametersUrServiceNeed.getBytes().length)); connection.setUseCaches (false); DataOutputStream wr = new DataOutputStream(connection.getOutputStream ()); wr.writeBytes(otherParametersUrServiceNeed); JSONObject jsonParam = new JSONObject(); jsonParam.put("ID", "25"); jsonParam.put("description", "Real"); jsonParam.put("enable", "true"); wr.writeBytes(jsonParam.toString()); wr.flush(); wr.close(); 

Referencias

  1. http://www.xyzws.com/Javafaq/how-to-use-httpurlconnection-post-data-to-web-server/139
  2. Java: el envío de parámetros HTTP mediante el método POST fácilmente