如何重新初始化/刷新阶段

Question

每当我要在舞台上添加要在添加时使用外部表单的数据时，如何刷新或重新初始化舞台？ （对不起，我不太擅长强调事物。因此，我将通过图片解释我的问题）

这是我的parentStage，我从数据库中加载数据。

然后，每当我单击“ 添加数据”按钮时，都会弹出另一个fxml文件，要求用户输入，然后将其保存到数据库中，然后在保存之后，场景焦点将返回到父级并据以更新表。

这是代码。 。 。

ParentStage.fxml

@FXML private GridPane gPane;

     public void initialize(URL url, ResourceBundle rb) {

            loadData();

            btnAdd.setOnAction(e -> {
                       Stage parentStage = (Stage) btnAdd.getScene().getWindow();
                       Parent root = FXMLLoader.load(getClass().getResource("/AddEmployeeAddress.fxml"));
                       Scene scene = new Scene(root);

                       Stage stage = new Stage(StageStyle.DECORATED);
                       stage.initModality(Modality.APPLICATION_MODAL);
                       stage.setScene(scene);
                       stage.show();
                     }); 
    }

 public void loadData() {
            try {
                Method method = gPane.getClass().getDeclaredMethod("getNumberOfRows");
                method.setAccessible(true);
                Integer rows = (Integer) method.invoke(gPane);
                System.out.println(rows);
                try {
                    pst = con.prepareStatement("SELECT PK_EAdd_ID,"
                            + "Address_Type,"
                            + "CONCAT(HouseNo,"
                            + "' ', Street,"
                            + "' ', Subdivision) AS ADDRESS,"
                            + "City_Mun,"
                            + "Prov FROM Emp_Address WHERE Emp_ID = 20191120");
                    rs = pst.executeQuery();

                    int cols = rs.getMetaData().getColumnCount();

                    while (rs.next()) {

                        int i = 0;
                        for (int m = 1; m <= cols; m++) {
                            Text txt = new Text(rs.getString(m).trim());
                            TextFlow txtFlow = new TextFlow(txt);
                            if (m <= 2) {
                                txtFlow.setTextAlignment(TextAlignment.CENTER);
                            }

                            // (Node, column, row)
                            gPane.add(txtFlow, i, rows);
                            i++;
                        }
                        rows++;
                    }

                } catch (SQLException ex) {
                    Logger.getLogger(FXMLController.class.getName()).log(Level.SEVERE, null, ex);
                }
            } catch (SecurityException | IllegalArgumentException | IllegalAccessException | InvocationTargetException | NoSuchMethodException ex) {
                Logger.getLogger(FXMLController.class.getName()).log(Level.SEVERE, null, ex);
            }
        }

AddEmployeeAddress.fxml

@FXML
    private void handleSaveData(ActionEvent event) {
        String toa = cmbTOA.getValue().trim();
        String hn = txtHouseNo.getText().trim();
        String str = txtStreet.getText().trim();
        String sub = txtSub.getText().trim();
        String cit = cmbCit.getValue().trim();
        String prov = cmbProv.getValue().trim();

        try {
            pst = con.prepareStatement("INSERT INTO Emp_Address "
                    + "(Emp_ID, Address_Type, HouseNo, Street, Subdivision, City_Mun, Prov) "
                    + "VALUES (?, ?, ?, ?, ?, ?, ?)");
            pst.setInt(1, 20191120);
            pst.setString(2, toa);
            pst.setString(3, hn);
            pst.setString(4, str);
            pst.setString(5, sub);
            pst.setString(6, cit);
            pst.setString(7, prov);

            int res = pst.executeUpdate();

            if (res == 1) {

//                Close the AddEmpoyeeAddress.fxml then automatically updates the data from ParentStage.fxml

            } else {
                AlertMaker.notifyError("ADD ADDRESS", "Your current changes were not save. Please Try Again");
            }
        } catch (SQLException ex) {
            Logger.getLogger(AddEmployeeAddressController.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

PS：我不能直接从父级阶段手动添加数据，因为PK_EAdd_ID使用具有自动增量功能的数据库主键。 就像ParentStage.Address = AddEmployeeAddress.Address.getText（）;