Generate tags with zk framework from java

I hope they are the best, the problem I have is that I want to generate a menu in zk framework, but I want to generate the data from java. The problem is that I do not know if what I formulate serves me. I need help, apart from that I do not know how to make java create the labels according to the data that it extracts from the database. I need help to be able to grab the data I take, and be able to generate the menu.

//// esta clase extraera y devolvera los datos que agarre de la base.
public class MenuOption {
private int id_memu;
private int id_padre;
private int id_orden;
private String nombre_menu;
private String url_img;
private String url_pag;





public MenuOption(int padre, int orden, String nombre, String img,String pag) {

    this.id_padre = padre;
    this.id_orden = orden;
    this.nombre_menu = nombre;
    this.url_img = img;
    this.url_pag = pag;

}


public int getId_memu() {
    return id_memu;
}

public void setId_memu(int id_memu) {
    this.id_memu = id_memu;
}

public int getId_padre() {
    return id_padre;
}

public void setId_padre(int id_padre) {
    this.id_padre = id_padre;
}

public int getId_orden() {
    return id_orden;
}

public void setId_orden(int id_orden) {
    this.id_orden = id_orden;
}

public String getNombre_menu() {
    return nombre_menu;
}

public void setNombre_menu(String nombre_menu) {
    this.nombre_menu = nombre_menu;
}

public String getUrl_img() {
    return url_img;
}

public void setUrl_img(String url_img) {
    this.url_img = url_img;
}

public String getUrl_pag() {
    return url_pag;
}

public void setUrl_pag(String url_pag) {
    this.url_pag = url_pag;
}



 }

/// another class

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;

import com.abraham.conexionSQL.conexion;;

public class DatosSql {

      private PreparedStatement pst;
      private ResultSet rst;
      private conexion con = new conexion();
      public ArrayList<MenuOption> GetConsultaMenu(String app) throws SQLException{
           Connection conn = con.getConexion();
           String query = "SELECT ID_OPCION_MENU,NIVEL,ORDEN,NOMBRE_MENU,URL_IMG,URL_PAG FROM MENU WHERE ID_APP ='"+app+"'";
           ArrayList<MenuOption> almacenes = new ArrayList<MenuOption>();
           pst = conn.prepareStatement(query);
           rst = pst.executeQuery();
           rst.moveToCurrentRow();
           while (!rst.isAfterLast()){
              MenuOption almacenesCon = cursorToContact(rst);
              almacenes.add(almacenesCon);
              rst.moveToCurrentRow();
           }
           rst.close();
           return almacenes;
     }

     private MenuOption cursorToContact(ResultSet cursor) throws SQLException {
    MenuOption alma1 = new MenuOption(
            cursor.getInt(1),
            cursor.getInt(2),
            cursor.getString(3),
            cursor.getString(4),
            cursor.getString(5));
       alma1.setId_memu(cursor.getInt(0));

       return alma1;
  }
}

//// and the class that will take the data

   import java.awt.Cursor;
   import java.sql.Connection;
   import java.sql.PreparedStatement;
   import java.sql.ResultSet;
   import java.sql.SQLException;
   import java.util.ArrayList;
   import java.util.List;
   import java.sql.SQLData;

   import com.abraham.conexionSQL.conexion;
       public class Menu {
         private ArrayList<MenuOption> opciones;
         private DatosSql datos;
         private conexion con = new conexion();
public void GenerarMenu(String app) throws SQLException{
    Connection conn = con.getConexion();
    opciones = datos.GetConsultaMenu(app);

    ArrayList<String> nombres = new ArrayList<String>();
    for (MenuOption opcionesMenu : opciones) {
        nombres.add(opcionesMenu.getNombre_menu());

      }
   }

  }