JavaFX:使用Filechooser移动文件后，图像未显示在ImageView中

在我的JavaFXGUI中，用户可以编辑他们的帖子，这涉及到将现有图像更改为用户上传的图像。这就是下面显示的函数的作用

postImage是我从FXML文件引用的ImageView-

@FXML private ImageView postImage

private void uploadImage(ActionEvent actionEvent) {
        // Create fileChooser
        FileChooser fileChooser = new FileChooser();
        FileChooser.ExtensionFilter extFilterImages = new FileChooser.ExtensionFilter("Image files (*.jpg)", "*.JPG", "*.PNG");
        fileChooser.getExtensionFilters().addAll(extFilterImages);

        // open dialog to have user select an image from the file system
        File selectedFile = fileChooser.showOpenDialog(title.getScene().getWindow());

        if (selectedFile != null) {
            System.out.println("File selected:" + selectedFile);
            System.out.println("Selected Image: " + selectedFile.getName());

            Path source = FileSystems.getDefault().getPath(selectedFile.getPath());
            String fileExtension = selectedFile.getName().substring(selectedFile.getName().lastIndexOf("."));
            String imagePath = "newImageUploaded" + fileExtension;
            Path destination = FileSystems.getDefault().getPath("resources/images/" + imagePath);

            System.out.println("Source: " + source);
            System.out.println("Destination: " + destination);

            // moving the uploaded image to the resources folder
            try {
                Files.copy(source, destination, StandardCopyOption.REPLACE_EXISTING);
            } catch (IOException ioException) {
                ioException.printStackTrace();
                System.out.println("Exception Caught");
            }

            System.out.println("Changing image: " + imagePath);

            // Set the uploaded image in the ImageView in GUI.
            postImage.setImage(new Image("/images/" + imagePath)); // error on this line: PostDetailsController.java:326

        }

    }

运行此功能时，图像将成功移动并显示在“我的资源”文件夹中。但是，最后一行
postImage.setImage（新图像（“/images/”+imagePath））
应该更新我的图像，但它给了我以下错误：

File selected:/Users/vaishnavinaik/Downloads/shoes.jpg
Selected Image: shoes.jpg
Source: /Users/vaishnavinaik/Downloads/shoes.jpg
Destination: resources/images/newImageUploaded.jpg
Changing image: newImageUploaded.jpg
Exception in thread "JavaFX Application Thread" java.lang.IllegalArgumentException: Invalid URL: Invalid URL or resource not found
    at javafx.graphics/javafx.scene.image.Image.validateUrl(Image.java:1107)
    at javafx.graphics/javafx.scene.image.Image.<init>(Image.java:617)
    at controller.PostDetailsController.uploadImage(PostDetailsController.java:326)
    at javafx.base/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
    at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
    at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
    at javafx.base/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
    at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
    at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
    at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
    at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
    at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
    at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
    at javafx.base/com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
    at javafx.base/com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49)
    at javafx.base/javafx.event.Event.fireEvent(Event.java:198)
    at javafx.graphics/javafx.scene.Node.fireEvent(Node.java:8879)
    at javafx.controls/javafx.scene.control.Button.fire(Button.java:200)
    at javafx.controls/com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:206)
    at javafx.controls/com.sun.javafx.scene.control.inputmap.InputMap.handle(InputMap.java:274)
    at javafx.base/com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:218)
    at javafx.base/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
    at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
    at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
    at javafx.base/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
    at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
    at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
    at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
    at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
    at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
    at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
    at javafx.base/com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
    at javafx.base/com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
    at javafx.base/javafx.event.Event.fireEvent(Event.java:198)
    at javafx.graphics/javafx.scene.Scene$MouseHandler.process(Scene.java:3851)
    at javafx.graphics/javafx.scene.Scene$MouseHandler.access$1200(Scene.java:3579)
    at javafx.graphics/javafx.scene.Scene.processMouseEvent(Scene.java:1849)
    at javafx.graphics/javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2588)
    at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:397)
    at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:295)
    at java.base/java.security.AccessController.doPrivileged(Native Method)
    at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$2(GlassViewEventHandler.java:434)
    at javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:390)
    at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:433)
    at javafx.graphics/com.sun.glass.ui.View.handleMouseEvent(View.java:556)
    at javafx.graphics/com.sun.glass.ui.View.notifyMouse(View.java:942)
    at javafx.graphics/com.sun.glass.ui.mac.MacView.notifyMouse(MacView.java:127)
Caused by: java.lang.IllegalArgumentException: Invalid URL or resource not found
    at javafx.graphics/javafx.scene.image.Image.validateUrl(Image.java:1099)
    ... 46 more


所选文件：/Users/vaishnavik/Downloads/shoes.jpg
所选图像：shoes.jpg
来源：/Users/vaishnavinaik/Downloads/shoes.jpg
目的地：resources/images/newimageupload.jpg
更改图像：newImageUpload.jpg
线程“JavaFX应用程序线程”java.lang.IllegalArgumentException中的异常：无效URL:找不到无效URL或资源
位于javafx.graphics/javafx.scene.image.image.validateUrl（image.java:1107）
在javafx.graphics/javafx.scene.image.image.（image.java:617）
在controller.PostDetailsController.uploadImage（PostDetailsController.java:326）
位于javafx.base/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent（CompositeEventHandler.java:86）
位于javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent（EventHandlerManager.java:238）
位于javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent（EventHandlerManager.java:191）
位于javafx.base/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent（CompositeEventDispatcher.java:59）
在javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent（BasicEventDispatcher.java:58）
位于javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent（EventDispatchChainImpl.java:114）
在javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent（BasicEventDispatcher.java:56）
位于javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent（EventDispatchChainImpl.java:114）
在javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent（BasicEventDispatcher.java:56）
位于javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent（EventDispatchChainImpl.java:114）
位于javafx.base/com.sun.javafx.event.EventUtil.fireEventImpl（EventUtil.java:74）
位于javafx.base/com.sun.javafx.event.EventUtil.firevent（EventUtil.java:49）
位于javafx.base/javafx.event.event.fireEvent（event.java:198）
位于javafx.graphics/javafx.scene.Node.firevent（Node.java:8879）
位于javafx.controls/javafx.scene.control.Button.fire（Button.java:200）
在javafx.controls/com.sun.javafx.scene.control.behavior.ButtonBehavior.MouseRelease（ButtonBehavior.java:206）
位于javafx.controls/com.sun.javafx.scene.control.inputmap.inputmap.handle（inputmap.java:274）
在javafx.base/com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent（CompositeEventHandler.java:218）上
位于javafx.base/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent（CompositeEventHandler.java:80）
位于javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent（EventHandlerManager.java:238）
位于javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent（EventHandlerManager.java:191）
位于javafx.base/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent（CompositeEventDispatcher.java:59）
在javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent（BasicEventDispatcher.java:58）
位于javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent（EventDispatchChainImpl.java:114）
在javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent（BasicEventDispatcher.java:56）
位于javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent（EventDispatchChainImpl.java:114）
在javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent（BasicEventDispatcher.java:56）
位于javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent（EventDispatchChainImpl.java:114）
位于javafx.base/com.sun.javafx.event.EventUtil.fireEventImpl（EventUtil.java:74）
位于javafx.base/com.sun.javafx.event.EventUtil.firevent（EventUtil.java:54）
位于javafx.base/javafx.event.event.fireEvent（event.java:198）
位于javafx.graphics/javafx.scene.scene$MouseHandler.process（scene.java:3851）
在javafx.graphics/javafx.scene.scene$MouseHandler.access$1200（scene.java:3579）
位于javafx.graphics/javafx.scene.scene.ProcessMouseeEvent（scene.java:1849）
位于javafx.graphics/javafx.scene.scene$ScenePeerListener.mouseEvent（scene.java:2588）
在javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run（GlassViewEventHandler.java:397）
在javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run（GlassViewEventHandler.java:295）
位于java.base/java.security.AccessController.doPrivileged（本机方法）
位于javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$2（GlassViewEventHandler.java:434）
位于javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock（QuantumToolkit.java:390）
位于javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent（GlassViewEventHandler.java:433）
位于javafx.graphics/com.sun.glass.ui.View.handleMouseEvent（View.java:556）
位于javafx.graphics/com.sun.glass.ui.View.notifyMouse（View.java:942）
位于javafx.graphics/com.sun.glass.ui.mac.MacView.notifyMouse（MacView.java:127）
原因：java.lang.IllegalArgumentException:找不到无效的URL或资源
位于javafx.graphics/javafx.scene.image.image.validateUrl（image.java:1099）
... 46多

当语句
postImage.setImage（新图像（“/images/”+imagePath））时是否可能：已执行，移动尚未完成？我是不是做错了什么
Path applicationDataPath = Paths.get(System.getProperty("user.home"), ".my-application");
Files.createDirectories(applicationDataPath);

Path destination = applicationDataPath.resolve("newImageUploaded"+fileExtension);

try {

    Files.copy(source, destination, StandardCopyOption.REPLACE_EXISTING);

    System.out.println("Changing image: " + imagePath);

    // Set the uploaded image in the ImageView in GUI.
    postImage.setImage(new Image(destination.toUri().toURL().toExternalForm())); 

} catch (IOException ioException) {
    ioException.printStackTrace();
    System.out.println("Exception Caught");
}