javafx中vbox控件最下面的控件自动填充

String keyTab="1111111";

VBox vboxMeals = new VBox(10);

BorderPane tempBorderPane=GetKeyOneTableView(ConstUnit.TEST_DB_URL,ConstUnit.TEST_DB_TABLE,keyTab,"");

vboxMeals.getChildren().addAll(tempBorderPane,bottomView);

VBox.setVgrow(bottomView, Priority.ALWAYS);

arg0.setTitle(ObjectViewFileReader.GetTitleByTableName(ConstUnit.TEST_DB_TABLE));

arg0.setScene(new Scene(vboxMeals));

arg0.show();