Question

我需要从javafx控制器

打开一个fxml窗口

Stage graphStage = new Stage();
    FXMLLoader loader = new FXMLLoader();
    fenetre = new File("../graph/graph.fxml");
    if (!fenetre.exists()) {
        System.out.println("fichier inexistant");
    } else {
        Pane rootGraph = loader.load(getClass().getResource(fenetre.getPath()).openStream());
        GraphController controller = (GraphController) loader.getController();
        controller.getSystemChoice(id);
        Scene sceneGraph = new Scene(rootGraph);
        sceneGraph.getStylesheets().add(getClass().getResource("myStyle.css").toExternalForm());

        graphStage.setTitle("Graphe");
        graphStage.setScene(sceneGraph);
        graphStage.show();
    }

代码没有查找文件，如何访问此文件？

controler is on: cloud/composant/controler.java
my fxml is on:   cloud/graph/graph.fxml

Answer 1

您可以从文件中获取数据，也可以使用资源。

不要尝试将两种方法结合起来。它们通常是不相容的。

// assuming here the file path is correct
FXMLLoader loader = new FXMLLoader(fenetre.toURI().toURL());
...
Pane rootGraph = loader.load();

如果文件是资源，您应该更喜欢将其作为资源加载：

// assuming cloud is positioned in the "classpath root"
FXMLLoader loader = new FXMLLoader(getClass().getResource("/cloud/graph/graph.fxml"));

用它的相对路径打开javafx窗口

1 个答案: