Javafx PropertyValueFactory未填充Tableview

Question

public class Stock {

    private SimpleStringProperty stockTicker;

    public Stock(String stockTicker) {
        this.stockTicker = new SimpleStringProperty(stockTicker);
    }

    public String getstockTicker() {
        return stockTicker.get();
    }

    public void setstockTicker(String stockticker) {
        stockTicker.set(stockticker);
    }
}

//控制器类Mainguicontroller.java

    private ObservableList<Stock> data;
    @FXML
    private TableView<Stock> stockTableView;// = new TableView<>(data);
    @FXML
    private TableColumn<Stock, String> tickerCol;


    private void setTickersToCol() {
    try {
        Statement stmt = conn.createStatement();//conn is defined and works
        ResultSet rsltset = stmt.executeQuery("SELECT ticker FROM tickerlist order by ticker");
        data = FXCollections.observableArrayList();
        Stock stockInstance;
        while (rsltset.next()) {
            stockInstance = new Stock(rsltset.getString(1).toUpperCase());
            data.add(stockInstance);
        }
    } catch (SQLException ex) {
        Logger.getLogger(WriteToFile.class.getName()).log(Level.SEVERE, null, ex);
        System.out.println("Connection Failed! Check output console");
    }

    tickerCol.setCellValueFactory(new PropertyValueFactory<Stock,String>("stockTicker"));
    stockTableView.setItems(data);
    }

    /*THIS, ON THE OTHER HAND, WORKS*/
    /*Callback<CellDataFeatures<Stock, String>, ObservableValue<String>> cellDataFeat =
            new Callback<CellDataFeatures<Stock, String>, ObservableValue<String>>() {
        @Override
        public ObservableValue<String> call(CellDataFeatures<Stock, String> p) {
            return new SimpleStringProperty(p.getValue().getstockTicker());
        }
    };*/

Answer 1

new PropertyValueFactory<Stock,String>("stockTicker")

public class Stock {

    private SimpleStringProperty stockTicker;

    public Stock(String stockTicker) {
        this.stockTicker = new SimpleStringProperty(stockTicker);
    }

    public String getStockTicker() {
        return stockTicker.get();
    }

    public void setStockTicker(String stockticker) {
        stockTicker.set(stockticker);
    }

    public StringProperty stockTickerProperty() {
        return stockTicker;
    }
}