Question

我尝试使用提供的Java客户端谷歌愿景通过Google Vision注释图片时遇到异常。

特别是批量client.batchAnnotateImages发生的代码：

public void processOCR(byte[] file) 
{
     List<AnnotateImageRequest> requests = new ArrayList<>();

      ByteString imageByteString = ByteString.copyFrom(file);

      Image img = Image.newBuilder().setContent(imageByteString).build();
      Feature feat = Feature.newBuilder().setType(Type.DOCUMENT_TEXT_DETECTION).build();

      AnnotateImageRequest request = AnnotateImageRequest.newBuilder().addFeatures(feat).setImage(img).build();
      requests.add(request);

      try (ImageAnnotatorClient client = ImageAnnotatorClient.create()) 
      {

        BatchAnnotateImagesResponse response = client.batchAnnotateImages(requests);
        List<AnnotateImageResponse> responses = response.getResponsesList();
        client.close();

        //visionResultsDTO result = new visionResultsDTO();
        String ParagraphText = "";


        for (AnnotateImageResponse res : responses) {
          if (res.hasError()) {
            //throw exception.
            return;
          }

          // For full list of available annotations, see http://g.co/cloud/vision/docs
          TextAnnotation annotation = res.getFullTextAnnotation();
          for (Page page: annotation.getPagesList()) {
            String pageText = "";
            for (Block block : page.getBlocksList()) {
          String blockText = "";
              for (Paragraph para : block.getParagraphsList()) {
                String paraText = "";
                for (Word word: para.getWordsList()) {
                  String wordText = "";
              for (Symbol symbol: word.getSymbolsList()) {
                    wordText = wordText + symbol.getText();
                  }
              paraText = paraText + wordText;
                }
                // Output Example using Paragraph:
                blockText = blockText + paraText;
              }
              pageText = pageText + blockText;
            }
          }
          ParagraphText = annotation.getText();
        //  result.setResultText(ParagraphText);
        }
      } catch (Exception e) 
      {
        // TODO Auto-generated catch block
        e.printStackTrace();
       }
 }

我遇到了以下堆栈跟踪/错误：

java.lang.NoSuchMethodError：com.google.common.util.concurrent.MoreExecutors.directExecutor（）Ljava / util / concurrent / Executor; 在com.google.api.gax.retrying.BasicRetryingFuture。（BasicRetryingFuture.java:77）在com.google.api.gax.retrying.CallbackChainRetryingFuture。（CallbackChainRetryingFuture.java:62）在com.google.api.gax.retrying.ScheduledRetryingExecutor.createFuture（ScheduledRetryingExecutor.java:86）在com.google.api.gax.grpc.RetryingCallable.futureCall（RetryingCallable.java:57）在com.google.api.gax.grpc.RetryingCallable.futureCall（RetryingCallable.java:42）在com.google.api.gax.grpc.AuthCallable.futureCall（AuthCallable.java:57）在com.google.api.gax.grpc.UnaryCallable.futureCall（UnaryCallable.java:282）在com.google.api.gax.grpc.UnaryCallable.futureCall（UnaryCallable.java:293）在com.google.api.gax.grpc.UnaryCallable.call（UnaryCallable.java:321）在com.google.cloud.vision.v1.ImageAnnotatorClient.batchAnnotateImages（ImageAnnotatorClient.java:201）在com.google.cloud.vision.v1.ImageAnnotatorClient.batchAnnotateImages（ImageAnnotatorClient.java:177）在za.co.thumbtribe.core.googlevision.service.impl.GoogleVisionServiceImpl.processOCR（GoogleVisionServiceImpl.java:55）

以下是我的POM依赖关系：

<dependencies>
<!-- Spring -->
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-web</artifactId>
  <version>4.2.5.RELEASE</version>
  <scope>compile</scope>
</dependency>
<dependency>
    <groupId>com.google.cloud</groupId>
    <artifactId>google-cloud-vision</artifactId>
    <version>0.20.3-beta</version>
    <exclusions>
    <exclusion>
      <groupId>com.google.auth</groupId>
      <artifactId>google-auth-library-oauth2-http</artifactId>
    </exclusion>
    <exclusion>
      <groupId>com.google.auth</groupId>
      <artifactId>google-auth-library-credentials</artifactId>
    </exclusion>
  <exclusion>
    <groupId>com.google.guava</groupId>
    <artifactId>*</artifactId>
</exclusion>
  </exclusions>
</dependency>
<dependency>
  <groupId>com.google.auth</groupId>
  <artifactId>google-auth-library-oauth2-http</artifactId>
  <version>0.7.0</version>
 </dependency>
 <dependency>
  <groupId>com.google.auth</groupId>
  <artifactId>google-auth-library-credentials</artifactId>
  <version>0.7.0</version>
</dependency>

</dependencies>

我尝试排除guava并包含多个版本的API。

显示的代码是来自Google Vision客户端实施的示例代码。

任何想法？

Answer 1

MoreExecutors类中缺少的方法@since 18.0在番石榴来源中注释mvn dependency:analyze（参见source）。

我猜你在你的类路径中有一个旧版本的Guava，它出现在版本19之前。

您应该运行mvn dependency:analyze | grep guava来追踪罪魁祸首。您可以mvn dependency:tree -Dverbose过滤输出。

然后，您可以使用以下命令检查哪个包导入旧的依赖项：

import maker from operators import op_morph import unittest from unittest.mock import Mock import cv2 img = cv2.imread("/img_tests/unitTestBaseImage.png") def my_side_effect(*args, **kwargs): global img print(args) print(kwargs) if args!=None: if len(args)>0: if args[0] == img: return 0 return 3 else: return 2 return 1 class TestCalls(unittest.TestCase): def test_dispatch(self): global img makerMock = Mock() makerMock.deal_with_result.side_effect = my_side_effect #calling the dispatch function maker.dispatch(["json_example.json"]) #instead of passing this mock I want to get the real parameters passed #when the function deal_with_result is called in dispatch. temp=makerMock.deal_with_result("img") print("image return code: "+str(temp)) if __name__ == '__main__': unittest.main(exit=False)

Answer 2

查看similar question

基本上，删除番石榴重复依赖。

在eclipse上打开pom.xml。
更改为“依赖”标签。
on filter，text“guava”。
如果有多个lib版本，右键单击old并“排除maven artifact”。
运行maven clean。
运行maven build。

为了获得最佳内存使用，我建议重写此代码的一部分以使用StringBuffer ou StringBuilder而不是String concat StringBuffer ou StringBuilder。

Answer 3

You excluded guava from the google-cloud-vision dependency (because the version may be old i guess) but you are not adding the version you need as a dependency :

<dependency>
  <groupId>com.google.guava</groupId>
  <artifactId>guava</artifactId>
  <version>22.0</version>
</dependency>

google-auth-library-oauth2-http also is including a version of guava :com.google.guava:guava:jar:19.0:compile. I you are adding a version of guava as a dependency, you may want to exclude the one from

Google Vision Batch使用Java客户端库批注图像

3 个答案: