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我一直在尝试调用 detectImageLabels 方法并将结果放入用户定义的数组 ObjectLabel 中，但我不断收到错误消息。我不知道该怎么做。labelImage 方法调用main 中的getFile 方法，获取文件的绝对路径，然后将路径输入到GoogleVision 中。应该从用户选择的图像文件中输出一组标签。例如，如果用户选择了一张鸟照片，它应该返回一个包含鸟类、羽毛、飞行、翅膀、自然等值的数组。也许我在 main.js 中错误地处理了抛出异常。

public static void labelImage(String filename) throws IOException, InterruptedException {
        String userFile = filename;
        JFrame img = new JFrame();
        ImageIcon icon = new ImageIcon(userFile);
        JLabel label = new JLabel(icon);
        img.add(label);
        img.pack();
        img.setVisible(true);
        ArrayList<ObjectLabel> labels = GoogleCloudVision.detectImageLabels(userFile);
        System.out.println(labels);

如果我正确处理了异常，这就是我的 Main 。

String userFile = getFilename();
        try {
            labelImage(userFile);
        } catch (IOException e) {
            e.printStackTrace();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }

然后这是我的 ObjectLabel 方法

class ObjectLabel {

    private String labels;
    private double confidence;

    public ObjectLabel(String labels, double confidence) {
        this.labels = labels;
        this.confidence = confidence;
    }

    public String getlabels() {
        return labels;
    }

    public void setLabels(String labels) {
        this.labels = labels;
    }

    public double getConfidence() {
        return confidence;
    }

    public void setConfidence(double confidence) {
        this.confidence = confidence;
    }

    @Override
    public String toString() {
        return "ObjectLabel{" +
                "labels='" + labels + '\'' +
                ", confidence=" + confidence +
                '}';
    }
}

这是 GoogleCloudVision

 ArrayList<ObjectLabel> results = new ArrayList<>();

        // create the ImageAnnotatorClient to make the call to Google Cloud Vision
        try (ImageAnnotatorClient imageAnnotatorClient = ImageAnnotatorClient.create(imageAnnotatorSettings)) {
            // call the Google Cloud Vision service to detect the labels
            BatchAnnotateImagesResponse response = imageAnnotatorClient.batchAnnotateImages(requests);

            // process the results
            for (AnnotateImageResponse res : response.getResponsesList()) {
                // if an error occurred, print it and return an empty list
                if (res.hasError()) {
                    System.err.println("Error: " + res.getError().getMessage());
                    return results;
                } // end if error

                // put the labels into our results ArrayList
                for (EntityAnnotation annotation : res.getLabelAnnotationsList()) {
                    results.add(new ObjectLabel(annotation.getDescription(),
                            annotation.getScore()));
                } // end for each annotation
            } // end for each response
        } // end try with resources
        return results;
    } // end labelImage

然后这是我得到的错误

java.nio.file.NoSuchFileException: C:\Users\DELL Laptop\Downloads\Exam3Starter\src
    at java.base/sun.nio.fs.WindowsException.translateToIOException(WindowsException.java:85)
    at java.base/sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:103)
    at java.base/sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:108)
    at java.base/sun.nio.fs.WindowsDirectoryStream.<init>(WindowsDirectoryStream.java:86)
    at java.base/sun.nio.fs.WindowsFileSystemProvider.newDirectoryStream(WindowsFileSystemProvider.java:533)
    at java.base/java.nio.file.Files.newDirectoryStream(Files.java:544)
    at GoogleCloudVision.findJsonCredentialsFile(GoogleCloudVision.java:51)
    at GoogleCloudVision.detectImageLabels(GoogleCloudVision.java:80)
    at SeeFood.labelImage(SeeFood.java:61)
    at SeeFood.main(SeeFood.java:93)
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