HttpURLConnection Senden von POST an einen Webdienst mit FileNotFoundException

Question

Ich versuche, einen Registrierungsdummy als Post von einem Webdienst zu senden, um die Verbindung zu überprüfen. Aber ich kann das nicht tun.

@Override 
protected String doInBackground(String... params) { 
    try { 
     Log.i("tst", "Teste0"); 
     URL url = new URL(params[0]); 
     HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection(); 
     urlConnection.setDoInput(true); 
     urlConnection.setDoOutput(true); 
     urlConnection.setUseCaches(false); 
     urlConnection.setChunkedStreamingMode(0); 
     urlConnection.setRequestProperty("Content-Type", "application/json"); 
     urlConnection.connect(); 
     ; 
     JSONObject usuario = new JSONObject(); 
     usuario.put("nome", "Pelé"); 
     usuario.put("email", "pele@uol.com.br"); 
     usuario.put("senha", "qwerty"); 
     out = new DataOutputStream(urlConnection.getOutputStream()); 
     out.writeBytes(URLEncoder.encode(usuario.toString(), "UTF-8")); 
     out.flush(); 
     out.close(); 
     InputStream conteudo = urlConnection.getInputStream(); 
     json = Util.toString(conteudo); 
    } catch (Exception e) { 
     e.printStackTrace(); 
    } 

    return json; 
} 

unter Util Klasse Rückkehr vom Server zu erhalten, finden: Je weiter ich habe in der Lage zu gehen, kann unten gesehen werden

public class Util { 
    public static String toString(InputStream is) throws Exception{ 

     BufferedInputStream in = new BufferedInputStream(is); 
     InputStreamReader r = new InputStreamReader(in, "UTF-8"); 
     StringWriter w = new StringWriter(); 
     int v = r.read(); 

     while (v != -1) { 
      w.write(v); 
      v = r.read(); 
     } 

     return w.toString(); 
    } 
} 

unter dem Protokoll von Android-Monitor finden, wenn sie versuchen zu verbinden der Webdienst

---

08-21 15:16:41.451 12155-12287/br.com.fiap.petwell W/System: ClassLoader referenced unknown path: /system/framework/tcmclient.jar 
08-21 15:16:41.526 12155-12226/br.com.fiap.petwell D/OpenGLRenderer: endAllActiveAnimators on 0xa09d3280 (RippleDrawable) with handle 0xaea027a0 
08-21 15:16:41.541 12155-12155/br.com.fiap.petwell I/Timeline: Timeline: Activity_idle id: android.os.BinderProxy@1dbcd27 time:127326360 
08-21 15:16:41.560 12155-12287/br.com.fiap.petwell W/System.err: java.io.FileNotFoundException: *URL used to connection here* 
08-21 15:16:41.561 12155-12287/br.com.fiap.petwell W/System.err:  at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:238) 
08-21 15:16:41.561 12155-12287/br.com.fiap.petwell W/System.err:  at br.com.fiap.petwell.requesttask.RegisterRequestTask.doInBackground(RegisterRequestTask.java:55) 
08-21 15:16:41.561 12155-12287/br.com.fiap.petwell W/System.err:  at br.com.fiap.petwell.requesttask.RegisterRequestTask.doInBackground(RegisterRequestTask.java:20) 
08-21 15:16:41.561 12155-12287/br.com.fiap.petwell W/System.err:  at android.os.AsyncTask$2.call(AsyncTask.java:295) 
08-21 15:16:41.562 12155-12287/br.com.fiap.petwell W/System.err:  at java.util.concurrent.FutureTask.run(FutureTask.java:237) 
08-21 15:16:41.562 12155-12287/br.com.fiap.petwell W/System.err:  at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234) 
08-21 15:16:41.562 12155-12287/br.com.fiap.petwell W/System.err:  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113) 
08-21 15:16:41.562 12155-12287/br.com.fiap.petwell W/System.err:  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
08-21 15:16:41.563 12155-12287/br.com.fiap.petwell W/System.err:  at java.lang.Thread.run(Thread.java:818) 
08-21 15:16:41.565 12155-12155/br.com.fiap.petwell I/teste: teste2 

Execution-Code, wie gewünscht:

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_registration); 
    r = new RegisterRequestTask(this); 
    r.execute("Connection URL"); 
} 

Vielen Dank!

Answer 1

Einen Weg gefunden, mit OutputStreamWriter über DataOutputStream. Der Code wie folgt angepasst:

@Override 
protected String doInBackground(String... params) { 
    try { 
     Log.i("tst", "Teste0"); 
     URL url = new URL(params[0]); 
     HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection(); 
     urlConnection.setDoInput(true); 
     urlConnection.setDoOutput(true); 
     urlConnection.setUseCaches(false); 
     urlConnection.setChunkedStreamingMode(0); 
     urlConnection.setRequestProperty("Content-Type", "application/json"); 
     urlConnection.connect(); 
     JSONObject usuario = new JSONObject(); 
     usuario.put("nome", "Pelé"); 
     usuario.put("email", "pele@uol.com.br"); 
     usuario.put("senha", "qwerty"); 
     out = new OutputStreamWriter(urlConnection.getOutputStream()); 
     out.write(usuario.toString()); 
     out.flush(); 
     out.close(); 
     InputStream conteudo = urlConnection.getInputStream(); 
     json = Util.toString(conteudo); 

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

    return json; 
}