所以我只想使用谷歌云视觉API从图像中检测文本或标签。但是，当我运行此代码时，我总是得到：com.google.api.client.googleapis.json.GoogleJsonResponseException: 400 Bad Request
但我不知道为什么......这是我得到的完整的json输出：
{
"code": 400,
"errors": [
{
"domain": "global",
"message": "Request Admission Denied.",
"reason": "badRequest"
}
],
"message": "Request Admission Denied.",
"status": "INVALID_ARGUMENT"
}
我的测试代码在这里：
import com.google.api.client.http.HttpTransport;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.vision.v1.Vision;
import com.google.api.services.vision.v1.VisionRequestInitializer;
import com.google.api.services.vision.v1.model.*;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.awt.image.DataBufferByte;
import java.awt.image.WritableRaster;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
public class GoogleDetection extends Detector {
private static final String CLOUD_VISION_API_KEY = "MY_API_KEY";
@Override
String detect(String filePath) {
HttpTransport httpTransport = new NetHttpTransport();
JsonFactory jsonFactory = GsonFactory.getDefaultInstance();
Vision.Builder builder = new Vision.Builder(httpTransport, jsonFactory, null);
builder.setVisionRequestInitializer(new
VisionRequestInitializer(CLOUD_VISION_API_KEY));
Vision vision = builder.build();
BatchAnnotateImagesRequest batchAnnotateImagesRequest =
new BatchAnnotateImagesRequest();
batchAnnotateImagesRequest.setRequests(new ArrayList<AnnotateImageRequest>() {{
AnnotateImageRequest annotateImageRequest = new AnnotateImageRequest();
// Image to bytes
Image base64EncodedImage = new Image();
BufferedImage bufferedImage = null;
File imgPath = new File(filePath);
try {
bufferedImage = ImageIO.read(imgPath);
} catch (IOException e) {
e.printStackTrace();
}
WritableRaster raster = bufferedImage.getRaster();
DataBufferByte data = (DataBufferByte) raster.getDataBuffer();
byte[] imageBytes = data.getData();
// Base64 encode the JPEG
base64EncodedImage.encodeContent(imageBytes);
annotateImageRequest.setImage(base64EncodedImage);
// add the features we want
annotateImageRequest.setFeatures(new ArrayList<Feature>() {{
Feature labelDetection = new Feature();
labelDetection.setType("LABEL_DETECTION");
labelDetection.setMaxResults(10);
add(labelDetection);
}});
// Add the list of one thing to the request
add(annotateImageRequest);
}});
Vision.Images.Annotate annotateRequest;
BatchAnnotateImagesResponse response = null;
try {
annotateRequest = vision.images().annotate(batchAnnotateImagesRequest);
// Due to a bug: requests to Vision API containing large images fail when GZipped.
annotateRequest.setDisableGZipContent(true);
response = annotateRequest.execute();
System.out.println(response.toString());
} catch (IOException e) {
e.printStackTrace();
}
return convertResponseToString(response);
}
private String convertResponseToString(BatchAnnotateImagesResponse response) {
String message = "I found these things:\n\n";
List<EntityAnnotation> labels = response.getResponses().get(0).getLabelAnnotations();
if (labels != null) {
for (EntityAnnotation label : labels) {
message += String.format("%.3f: %s", label.getScore(), label.getDescription());
message += "\n";
}
} else {
message += "nothing";
}
return message;
}
}
所以问题是......这段代码出了什么问题？