import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import java.sql.SQLException;
import java.util.logging.Level;
import java.util.logging.Logger;

public class przelewShow extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        try (PrintWriter out = response.getWriter()) {

            try {
                String query = "select * from przelew;";
                Class.forName("com.mysql.jdbc.Driver");
                Connection conn = null;
                conn = DriverManager.getConnection("jdbc:mysql://localhost/przelew_dane", "root", "");
                Statement s = (Statement) conn.createStatement();
                ResultSet rs = s.executeQuery(query);
                while (rs.next()) {
                    String odbiorca = rs.getString("odbiorca_przelewu");
                    String numer = rs.getString("numer_konta_przelewu");
                    String tytul = rs.getString("tytul_przelewu");
                    String kwota = rs.getString("kwota_przelewu");
                    out.println("Potwierdzenie przelewu <br>");
                    out.println("-----------------------------------"
                            + "----------------------------------------------------<br>");
                    out.println("Odbiorca: " + odbiorca + "<br>");
                    out.println("Numer konta: " + numer + "<br>");
                    out.println("Tytul przelewu: " + tytul + "<br>");
                    out.println("Kwota przelewu: " + kwota + "<br>");
                }
                conn.close();

            } catch (SQLException ex) {
                Logger.getLogger(przelewShow.class.getName()).log(Level.SEVERE, null, ex);
            } catch (ClassNotFoundException ex) {
                Logger.getLogger(przelewShow.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}