java - 在 Eclipse 中使用 Java 测试 Google Cloud Vision

Question

我正在 Eclipse 中使用 Java 测试 Google Cloud Vision。

我已经从https://cloud.google.com/vision/docs/reference/libraries#client-libraries-install-java复制了java代码

// Imports the Google Cloud client library

import com.google.cloud.vision.v1.AnnotateImageRequest;
import com.google.cloud.vision.v1.AnnotateImageResponse;
import com.google.cloud.vision.v1.BatchAnnotateImagesResponse;
import com.google.cloud.vision.v1.EntityAnnotation;
import com.google.cloud.vision.v1.Feature;
import com.google.cloud.vision.v1.Feature.Type;
import com.google.cloud.vision.v1.Image;
import com.google.cloud.vision.v1.ImageAnnotatorClient;
import com.google.protobuf.ByteString;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.List;

public class QuickstartSample {
  public static void main(String... args) throws Exception {
    // Instantiates a client
    try (ImageAnnotatorClient vision = ImageAnnotatorClient.create()) {

      // The path to the image file to annotate
      String fileName = "./resources/wakeupcat.jpg";

      // Reads the image file into memory
      Path path = Paths.get(fileName);
      byte[] data = Files.readAllBytes(path);
      ByteString imgBytes = ByteString.copyFrom(data);

      // Builds the image annotation request
      List<AnnotateImageRequest> requests = new ArrayList<>();
      Image img = Image.newBuilder().setContent(imgBytes).build();
      Feature feat = Feature.newBuilder().setType(Type.LABEL_DETECTION).build();
      AnnotateImageRequest request = AnnotateImageRequest.newBuilder()
          .addFeatures(feat)
          .setImage(img)
          .build();
      requests.add(request);

      // Performs label detection on the image file
      BatchAnnotateImagesResponse response = vision.batchAnnotateImages(requests);
      List<AnnotateImageResponse> responses = response.getResponsesList();

      for (AnnotateImageResponse res : responses) {
        if (res.hasError()) {
          System.out.printf("Error: %s\n", res.getError().getMessage());
          return;
        }

        for (EntityAnnotation annotation : res.getLabelAnnotationsList()) {
          annotation.getAllFields().forEach((k, v) ->
              System.out.printf("%s : %s\n", k, v.toString()));
        }
      }
    }
  }
}

我可以从哪里下载 .JAR 以便一切都能正确编译？

Google 自己说(请参阅上面的链接)

If you are using Maven, add this to your pom.xml file:

    <groupId>com.google.cloud</groupId>  
    <artifactId>google-cloud-vision</artifactId>  
    <version>1.14.0</version> </dependency>

但是，我没有使用 Maven(也没有使用 Gradle 或 SBT，这是他们的其他建议)。

所以我想在 Eclipse 中打开一个新的 Maven 项目，然后它会自动下载所有 JAR，然后将它们复制到我的项目中。

所以我在 Eclipse 中执行了“new Maven Project”，然后当它说“输入 Artifact 的组 ID”时，我输入了上面粘贴的来自 Google 的详细信息，但它没有下载任何内容。

有什么想法可以获取 JAR 以便代码可以编译吗？

Eclipse自动生成的pom.xml文件是

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>com.google.cloud</groupId>
  <artifactId>google-cloud-vision</artifactId>
  <version>1.14.0</version>
  <packaging>jar</packaging>

  <name>google-cloud-vision</name>
  <url>http://maven.apache.org</url>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  </properties>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
  </dependencies>
</project>

Answer 1

现在，当您拥有 Maven 时，您可以添加依赖项。

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <!-- THIS IS YOUR APP RELATED STUFF -->
  <groupId>com.your.app.group.id</groupId> <!-- YOU SHOULD PROVIDE THIS -->
  <artifactId>your-app-name</artifactId> <!-- YOU SHOULD PROVIDE THIS -->
  <version>1.0-SNAPSHOT</version>
  <packaging>jar</packaging>


  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  </properties>

  <!-- THIS ARE YOUR APP dependencies -->
  <!-- Google lib should be declared here -->
  <dependencies>
    <dependency>
      <groupId>com.google.cloud</groupId>
      <artifactId>google-cloud-vision</artifactId>
      <version>1.14.0</version>
    </dependency>

    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
  </dependencies>
</project>

如果此依赖项位于 Maven Central - Maven 将下载它。