Poslat dotaz na tisk: TCP Port 9100 – Java – Fórum – Programujte.com

Dobrý den, potřeboval bych poradit jak v Androidu pošlu požadavek na tiskárnu po TCP Port 9100.

Můj pokus:

class SendPrint extends AsyncTask<String, String, String> {
	@Override
	protected String doInBackground(String... params) {
		Log.e("pritning", "start");

		// ///////////
		Socket socket = null;
		OutputStream output = null;
		BufferedReader reader = null;
		// /////////
		try {
			socket = new Socket("192.168.1.5", 9100);
			socket.setSoTimeout(5000);
			output = socket.getOutputStream();
			reader = new BufferedReader(new InputStreamReader(
					socket.getInputStream()));
		} catch (UnknownHostException | SocketException e) {
		} catch (IOException e) {
			Log.e("pritning", "catch");
			e.printStackTrace();
		}
		// ///////
		if (socket != null && output != null) {
			try {
				Log.e("pritning", "yes");
				String message = "asdasdasd";
				output.write(message.getBytes());
				output.flush();
				socket.shutdownOutput();

				String response = reader.readLine();

				System.out.println(response.toString());

				output.close();
				socket.close();
			} catch (Exception e) {
				System.out.println(e.toString());

			}
		}
		return "";
	}
}