JavaFx 2 设置窗口图标.

@Override
    public void start(Stage stage) throws Exception {
        Parent root = FXMLLoader.load(getClass().getResource("FXMLDocument.fxml"));

        Scene scene = new Scene(root);
        //设置标题
        stage.setTitle("测试");
        stage.setScene(scene);
        //设置窗口的图标.
        stage.getIcons().add(new Image(
                Test.class.getResourceAsStream("/resource/orange-ball.png")));

        stage.show();
    }