Question

我知道这个错误已被多次看到，但在尝试了所有我能读到的内容之后，我仍然会被这个错误所吸引。

所以在我的JavaFX项目中，我尝试加载一个fxml文件，但是我有这个错误：

java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:389)
        at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:767)
Caused by: java.lang.RuntimeException: Exception in Application start method
        at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:917)
        at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$155(LauncherImpl.java:182)
        at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.IllegalStateException: Location is not set.
        at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2434)
        at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2409)
        at PeerApp.start(PeerApp.java:25)
        at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$162(LauncherImpl.java:863)
        at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$175(PlatformImpl.java:326)
        at com.sun.javafx.application.PlatformImpl.lambda$null$173(PlatformImpl.java:295)
        at java.security.AccessController.doPrivileged(Native Method)
        at com.sun.javafx.application.PlatformImpl.lambda$runLater$174(PlatformImpl.java:294)
        at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
Exception running application PeerApp

这是我的代码：

public class PeerApp extends Application {

    private AnchorPane mainLayout;
    private Stage primaryStage;

    public void start(Stage primaryStage) {
        try {
            FXMLLoader loader = new FXMLLoader();
        loader.setLocation(PeerApp.class.getResource("PeerAppMessenger/resources/fxml/PeerApp.fxml"));
            mainLayout = loader.load();
        } catch (IOException e) {
            e.printStackTrace();
        }

        this.primaryStage = primaryStage;
        this.primaryStage.setTitle("Peer Messenger");
        JFXDecorator decorator = new JFXDecorator(primaryStage, mainLayout);
        decorator.setCustomMaximize(true);
        Scene scene = new Scene(decorator, 600, 400);
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }
}

最后这是我的项目结构：

我让它工作的唯一方法是将我的fxml文件放在我的src文件夹中，然后将传递给getResource()的路径设置为“PeerApp.fxml”。当我使用Intellij而不是在命令行中运行时，它运行良好...任何想法为什么？

修改我使用getResource()更改了传递给/production/PeerAppMessenger/fxml/PeerApp.fxml的路径，所以现在看来文件已找到，但我现在有这个错误：

javafx.fxml.LoadException: 
/Users/yoangrandjacques/Documents/Development/Peer/PeerAppMessenger/out/production/PeerAppMessenger/fxml/PeerApp.fxml:9

        at javafx.fxml.FXMLLoader.constructLoadException(FXMLLoader.java:2601)
        at javafx.fxml.FXMLLoader.access$700(FXMLLoader.java:103)
        at javafx.fxml.FXMLLoader$ValueElement.processAttribute(FXMLLoader.java:922)
        at javafx.fxml.FXMLLoader$InstanceDeclarationElement.processAttribute(FXMLLoader.java:971)
        at javafx.fxml.FXMLLoader$Element.processStartElement(FXMLLoader.java:220)
        at javafx.fxml.FXMLLoader$ValueElement.processStartElement(FXMLLoader.java:744)
        at javafx.fxml.FXMLLoader.processStartElement(FXMLLoader.java:2707)
        at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2527)
        at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2441)
        at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2409)
        at PeerApp.start(PeerApp.java:25)
        at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$162(LauncherImpl.java:863)
        at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$175(PlatformImpl.java:326)
        at com.sun.javafx.application.PlatformImpl.lambda$null$173(PlatformImpl.java:295)
        at java.security.AccessController.doPrivileged(Native Method)
        at com.sun.javafx.application.PlatformImpl.lambda$runLater$174(PlatformImpl.java:294)
        at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
Caused by: java.lang.ClassNotFoundException: PeerAppController
        at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
        at javafx.fxml.FXMLLoader$ValueElement.processAttribute(FXMLLoader.java:920)
        ... 14 more
Exception in Application start method
java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:389)
        at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:767)
Caused by: java.lang.RuntimeException: Exception in Application start method
        at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:917)
        at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$155(LauncherImpl.java:182)
        at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException: Children: child node is null: parent = StackPane@17b46e9e[styleClass=jfx-decorator-content-container]
        at javafx.scene.Parent$2.onProposedChange(Parent.java:435)
        at com.sun.javafx.collections.VetoableListDecorator.add(VetoableListDecorator.java:206)
        at com.jfoenix.controls.JFXDecorator.<init>(JFXDecorator.java:255)
        at com.jfoenix.controls.JFXDecorator.<init>(JFXDecorator.java:92)
        at PeerApp.start(PeerApp.java:32)
        at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$162(LauncherImpl.java:863)
        at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$175(PlatformImpl.java:326)
        at com.sun.javafx.application.PlatformImpl.lambda$null$173(PlatformImpl.java:295)
        at java.security.AccessController.doPrivileged(Native Method)
        at com.sun.javafx.application.PlatformImpl.lambda$runLater$174(PlatformImpl.java:294)
        at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
Exception running application PeerApp

JavaFX：“错误：未设置位置”

0 个答案: