条形图中的动态数据无法正常工作javaFX

Question

I am trying to load data from a result set but when the chart is displayed some of the bars are missing.

Following is my code:

        ResultSet rs = ps.executeQuery();

        XYChart.Series<String, Double> series = new XYChart.Series<>();
        while (rs.next()) {
            String name = rs.getString(1);
            Double no = rs.getDouble(2);
            series.getData().add(new XYChart.Data<>(name, no));
            barchart1.getData().add(series);
        }

Answer 1

You have to create a new series for each row-data,

ResultSet rs = ps.executeQuery();

while (rs.next()) {
     String name = rs.getString(1);
     Double no = rs.getDouble(2);
     XYChart.Series<String, Double> series = new XYChart.Series<>();
     series.getData().add(new XYChart.Data<>(name, no));
     barchart1.getData().add(new XYChart.Data<>);
}