我正在尝试从数据库中选定的数据填充表视图。
下面代码中的一个片段

TableView<String> tableView = new TableView();

TableColumn<String, String> column1 = new TableColumn<String, String>("Customer Name");
column1.setCellValueFactory(new PropertyValueFactory<String, String>("Customer Name"));

TableColumn<String, String> column2 = new TableColumn<String, String>("Bill");
column2.setCellValueFactory(new PropertyValueFactory<String, String>("Bill"));

TableColumn<String, String> column3 = new TableColumn<String, String>("Phone Number");
column3.setCellValueFactory(new PropertyValueFactory<String, String>("Phone Number"));

try {
    ObservableList<String> list = fill_table();
    tableView.getItems().addAll(list);
} catch (ClassNotFoundException ex) {
    Logger.getLogger(Restaurant_reservation.class.getName()).log(Level.SEVERE, null, ex);
}

tableView.getColumns().addAll(column1, column2, column3);

填表法

public  ObservableList fill_table() throws SQLException, ClassNotFoundException {
    ObservableList<String> details = null;

    Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/restaurant?serverTimezone=Europe/Amsterdam", "root", "123456");
    Statement stmt = conn.createStatement();
    String query = "SELECT customer_name,bill,phone_number FROM customer";

    try {
        ResultSet rs = stmt.executeQuery(query);

        while (rs.next()) {
            String Customer_Name = rs.getString("customer_name");
            int Bill = rs.getInt("bill");
            int PhoneNumber = rs.getInt("phone_number");
            list.add(Customer_Name);
            list.add(String.valueOf(Bill));
            list.add(String.valueOf(PhoneNumber));
        }
        details = FXCollections.observableArrayList(list);
    } catch (SQLException ex) {
        Logger.getLogger(Restaurant_reservation.class.getName()).log(Level.SEVERE, null, ex);
    }
    return details;
}

当我打开sysout列表时，我得到了值，但是tableview仍然是空的。