Android POST request with JSON
Po badaniach nadal nie mogę wysłać żądania JSON POST na serwer.
Próbowałem już kilku starszych odpowiedzi:
Java-łatwe przesyłanie parametrów HTTP metodą POST
[Android] - POST Json z HttpUrlConnection
Wyślij żądanie rejestracji danych użytkownika na serwerze przez HttpUrlConnection
Wysyłanie obiektu json metodą http post w systemie android
Jak wysłać obiekt JSON Wniosek z Androidem?
Mój obecny kod to:
FloatingActionButton btn_sendMsg = (FloatingActionButton) findViewById(R.id.btn_sendMsg);
btn_sendMsg.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
/*Snackbar.make(view, "Sendevorgang...", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();*/
createMsg();
}
});
private void createMsg() {
Message message = new Message(txtbox_msg.getText().toString(), "testUser");
AsyncT asyncT = new AsyncT();
asyncT.execute(message);
}
AsyncT.java:
@Override
protected Message doInBackground(Message... params) {
try {
URL url = new URL("http://[ip]:[port]"); //in the real code, there is an ip and a port
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Type", "application/json");
conn.setRequestProperty("Accept","application/json");
conn.setDoOutput(true);
conn.setDoInput(true);
conn.connect();
JSONObject jsonParam = new JSONObject();
jsonParam.put("uname", params[0].getUser());
jsonParam.put("message", params[0].getMessage());
jsonParam.put("latitude", "0");
jsonParam.put("longitude", "0");
jsonParam.put("id", "1");
DataOutputStream os = new DataOutputStream(conn.getOutputStream());
os.writeBytes(URLEncoder.encode(jsonParam.toString(), "UTF-8"));
os.flush();
os.close();
Log.i("STATUS", String.valueOf(conn.getResponseCode()));
Log.i("MSG" , conn.getResponseMessage());
conn.disconnect();
} catch (Exception e) {
}
return null;
}
Otrzymuję kod błędu networkonmainthreadexception 500
Jak mogę to rozwiązać? 12
2 answers
Rozwiązany:
Zmieniony
os.writeBytes(URLEncoder.encode(jsonParam.toString(), "UTF-8"));
Do
os.writeBytes(jsonParam.toString());
I umieść kod w wątku (dzięki @Ravi Sanker)
Kod roboczy:
public void sendPost() {
Thread thread = new Thread(new Runnable() {
@Override
public void run() {
try {
URL url = new URL(urlAdress);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Type", "application/json;charset=UTF-8");
conn.setRequestProperty("Accept","application/json");
conn.setDoOutput(true);
conn.setDoInput(true);
JSONObject jsonParam = new JSONObject();
jsonParam.put("timestamp", 1488873360);
jsonParam.put("uname", message.getUser());
jsonParam.put("message", message.getMessage());
jsonParam.put("latitude", 0D);
jsonParam.put("longitude", 0D);
Log.i("JSON", jsonParam.toString());
DataOutputStream os = new DataOutputStream(conn.getOutputStream());
//os.writeBytes(URLEncoder.encode(jsonParam.toString(), "UTF-8"));
os.writeBytes(jsonParam.toString());
os.flush();
os.close();
Log.i("STATUS", String.valueOf(conn.getResponseCode()));
Log.i("MSG" , conn.getResponseMessage());
conn.disconnect();
} catch (Exception e) {
e.printStackTrace();
}
}
});
thread.start();
}
35
Author: Cihat,
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2017-03-14 07:54:42
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2017-03-14 07:54:42
Możesz spróbować napisać to w metodzie createMsg ():
Thread thread = new Thread(new Runnable() {
@Override
public void run() {
try {
// The code written in doInBackground()
} catch (Exception e) {
e.printStackTrace();
}
}});
thread.start();
Wyjątek networkonmainthread pojawia się, gdy uruchamiasz operacje sieciowe w tym samym wątku. Ale, ponieważ używasz zadania asynchronicznego, powinno działać dobrze. Ale żeby to potwierdzić. 4
Author: Ravi Sanker,
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2017-03-13 17:40:16
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2017-03-13 17:40:16