After researches i still cant send a JSON POST request to a server.
I already tried some older answers:
Java - sending HTTP parameters via POST method easily
[Android]-POST Json with HttpUrlConnection
Post request for registering user data on server by HttpUrlConnection
Sending json object via http post method in android
How to send a JSON object over Request with Android?
My current code is:
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;
}
I'm getting the error code networkonmainthreadexception 500
How can i solve this?
getting the error code networkonmainthreadexception 500
. Nonsense. 500 means something different. – greenapps