Untitled

package registracia;

/*
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 * and open the template in the editor.
 */
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author Juri
 */
@WebServlet(urlPatterns = {"/kontrola"})
public class kontrola extends HttpServlet {

    String driver = "com.mysql.jdbc.Driver";
    Connection con = null;
    Statement stmt = null;
    ResultSet rs = null;
    String userName = "root";
    String password = "";
    String URL = "jdbc:mysql://localhost/kelebercova_shop";

    public void init() {
        try {
            super.init();
            Class.forName(driver);
            con = DriverManager.getConnection(URL, userName, password);
        } catch (Exception ex) {
        }
    }

    void ZapisDoDB(PrintWriter out, String meno, String priezvisko, String email, String heslo, String adresa) {
        if (email.contains("@") == false || email.contains(".") == false) {
        } else {
            try {
                stmt = con.createStatement(); // "', "+"'" + priezvisko +
                stmt.executeUpdate("INSERT INTO pouzivatelia (meno, priezvisko, email, heslo, adresa) VALUES ('" + meno + "','" + priezvisko + "','" + email + "','" + heslo + "','" + adresa + "' ) ");
                stmt.close();
            } catch (Exception e) {
                System.out.println("Problém so zápisom " + e.toString());
            }
        }

    }


    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        try (PrintWriter out = response.getWriter()) {
            String tlacidlo = request.getParameter("tlacidlo").substring(0, 1);
            if (tlacidlo.equals("R")) {
                ZapisDoDB(out, request.getParameter("meno"), request.getParameter("priezvisko"), request.getParameter("email"), request.getParameter("heslo"), request.getParameter("adresa"));
            }

            out.println("<!DOCTYPE html>");

            out.println("<title>Servlet kontrola</title>");

            if (request.getParameter("email").toString().contains("@") == false || request.getParameter("email").toString().contains(".") == false) {

            } else {

              // sem vypises napriklad ze Dakujem za registraciu alebo tak

    // <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>

}