Получение содержимого HTML страницы

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
 
public class App {
 
    public static void main(String[] args) {
        new App().exec();
    }
 
    public void exec() {
        BufferedReader reader = null;
        try {
            URL site = new URL("http://www.pravex.com.ua/rus/services/personal/currency-converter");
            reader = new BufferedReader(new InputStreamReader(site.openStream()));
            String line;
            while ((line = reader.readLine()) != null) {
                System.out.println(line);
            }
            reader.close();
        } catch (IOException ex) {
            //...
        } finally {
            try {
                reader.close();
            } catch (IOException ex) {
                //...
            }
        }
 
    }
}

public static void main(String[] args) throws IOException {
        String urlParameters = "param1=16&param2=09&param3=2014";
        String request = "http://www.pravex.com.ua/rus/currency/macros_response";
        URL url = new URL(request);
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection.setDoOutput(true);
        connection.setDoInput(true);
        connection.setInstanceFollowRedirects(false);
        connection.setRequestMethod("POST");
        connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
        connection.setRequestProperty("charset", "utf-8");
        connection.setRequestProperty("Content-Length", "" + Integer.toString(urlParameters.getBytes().length));
        connection.setUseCaches (false);
 
        DataOutputStream wr = new DataOutputStream(connection.getOutputStream ());
        wr.writeBytes(urlParameters);
        System.out.println(connection.getOutputStream().toString());
        wr.flush();
        wr.close();
        connection.disconnect();
    }

String urlParameters = "day=15&month=09&year=2014";

System.out.println(connection.getOutputStream().toString());

        BufferedReader in = new BufferedReader(
                new InputStreamReader(connection.getInputStream()));
        String inputLine;
        StringBuilder response = new StringBuilder();
 
        while ((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }