Untitled

<tr><td>
                        <label>SQL Server</label>
                    </td>
                    <td>
                        <input class="input" type="radio" id="base" name="base" value=2>
                    </td></tr>

                <tr><td>
                        <label>PostgreSQL</label>
                    </td>
                    <td>
                        <input class="input" type="radio" id="base" name="base" value=3>
                    </td></tr>
            </table>
            <div class="btn__form">
                <input class="btn__submit" type="submit" value="ACEPTAR">
            </div>
        </form>
    </div>
</center>

try (PrintWriter out = response.getWriter()) {
        /* TODO output your page here. You may use following sample code. */
        out.println("<!DOCTYPE html>");
        out.println("<html>");
        out.println("<head>");
        out.println("<title>Servlet Selecciona</title>");
        out.println("<link rel='stylesheet' href='CSS/cajasred.css'/>");
        out.println("</head>");
        out.println("<body>");
        out.println("<br>");
      int tb = Integer.parseInt(request.getParameter("base"));
        switch (tb) {
            case 1:
                out.println("<form class='form__reg' action='Login.jsp'>");
                out.println("<div class='box-blue'>");
                out.println("<center><input class='btn__submit' type='submit' style='font-size: 15pt;' value='INGRESAR AL SISTEMA MySQL'></center>");
                out.println("</div>");
                out.println("</form>");
                break;
            case 2:
                out.println("<form class='form__reg' action='Login.jsp'>");
                out.println("<div class='box-green'>");
                out.println("<center><input class='btn__submit' type='submit' style='font-size: 15pt;' value='INGRESAR AL SISTEMA SQL Server'></center>");
                out.println("</div>");
                out.println("</form>");
                break;
            default:
                out.println("<center><h2>EN MANTENIMIENTO</h2>");
                out.println("<a href='index.html'><font color = red style='font-size:25px'>Vuelva a Ingresar</font></a><br>");
                out.println("<img src='IMG/construccion.jpg' alt=''/></center>");
                break;
        }
        out.println("</body>");
        out.println("</html>");
    }
}

ClaseCadena cad = new ClaseCadena();
public Connection cn = null;
public Connection conexionBd() {
    try {
        switch (tipoBase) {
            case 1:
                cad.setCadConDri("com.mysql.jdbc.Driver");
                cad.setCadConbd("jdbc:mysql://localhost/agenciabus");
                cad.setUsuario("root");
                cad.setPass("1234");
                break;
            case 2:
                cad.setCadConDri("com.microsoft.sqlserver.jdbc.SQLServerDriver");
                cad.setCadConbd("jdbc:sqlserver://localhost;databaseName=agenciabus");
                cad.setUsuario("sa");
                cad.setPass("123456");
                break;
            default:
                break;
        }
        Class.forName(cad.getCadConDri());
        cn = DriverManager.getConnection(cad.getCadConbd(), cad.getUsuario(), cad.getPass());
    } catch (HeadlessException | ClassNotFoundException | SQLException e) {
        System.out.println("NO se conecto n" + e);
    }
    return cn;
}