import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.SocketTimeoutException;
import java.net.URL;
import java.net.URLEncoder;

public class App {

    public static void main(String[] args) throws IOException {
        URL url = new URL("http://127.0.0.1:8080/fetch.php");
        HttpURLConnection client = null;
        try {
            client = (HttpURLConnection) url.openConnection();

            // Additional headers
            client.setRequestProperty("Connection", "close");
            client.setUseCaches(false);

            // Set the request method to POST
            client.setRequestMethod("POST");
            client.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
            client.setDoOutput(true);

            // Send the parameters in the request body
            String urlParameters = "username=" + URLEncoder.encode("zlevorantonin", "UTF-8") +
                                    "&password=" + URLEncoder.encode("Skolajenej!22", "UTF-8");

            DataOutputStream wr = new DataOutputStream(client.getOutputStream());
            wr.writeBytes(urlParameters);
            wr.flush();
            wr.close();

            // Get the response code
            int responseCode = client.getResponseCode();
            //System.out.println("Response Code: " + responseCode);

            // Read the response body
            try (BufferedReader in = new BufferedReader(new InputStreamReader(client.getInputStream()))) {
                String inputLine;
                StringBuilder response = new StringBuilder();

                while ((inputLine = in.readLine()) != null) {
                    response.append(inputLine);
                }

                // Print the response body
                System.out.println(response.toString());
            }

        } catch (MalformedURLException error) {
            // Handles an incorrectly entered URL
            System.out.println("malformed URL");
        } catch (SocketTimeoutException error) {
            // Handles URL access timeout.
            System.out.println("socket timeout");
        } catch (IOException error) {
            // Handles input and output errors
            System.out.println("IO exception: " + error.getMessage());
            error.printStackTrace();
        } finally {
            if (client != null) // Make sure the connection is not null.
                client.disconnect();
        }
    }
}