Java Can'；t从IntelliJ连接到AWS rekognition API

我一直在使用来自Amazon的新rekognition API，在IntelliJ上运行Java应用程序时遇到了问题。我正在使用Maven构建项目，并在我的

pom.xml

中包含了AWS SDK，如下所示：

<dependency>
    <groupId>com.amazonaws</groupId>
    <artifactId>aws-java-sdk</artifactId>
    <version>${aws-java-sdk.version}</version>
</dependency>

…我得到的错误是：

com.amazonaws.services.rekognition.model.AmazonRekognitionException: null (Service: AmazonRekognition; Status Code: 400; Error Code: null; Request ID: null)
    at com.amazonaws.http.AmazonHttpClient$RequestExecutor.handleErrorResponse(AmazonHttpClient.java:1545)
    at com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeOneRequest(AmazonHttpClient.java:1183)
    at com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeHelper(AmazonHttpClient.java:964)
    at com.amazonaws.http.AmazonHttpClient$RequestExecutor.doExecute(AmazonHttpClient.java:676)
    at com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeWithTimer(AmazonHttpClient.java:650)
    at com.amazonaws.http.AmazonHttpClient$RequestExecutor.execute(AmazonHttpClient.java:633)
    at com.amazonaws.http.AmazonHttpClient$RequestExecutor.access$300(AmazonHttpClient.java:601)
    at com.amazonaws.http.AmazonHttpClient$RequestExecutionBuilderImpl.execute(AmazonHttpClient.java:583)
    at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:447)
    at com.amazonaws.services.rekognition.AmazonRekognitionClient.doInvoke(AmazonRekognitionClient.java:1130)
    at com.amazonaws.services.rekognition.AmazonRekognitionClient.invoke(AmazonRekognitionClient.java:1106)
    at com.amazonaws.services.rekognition.AmazonRekognitionClient.detectFaces(AmazonRekognitionClient.java:599)
    at com.github.jhenningsgaard.DetectFaces.main(DetectFaces.java:39)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)

我还应该注意到，我在AWS CLI中运行了该操作（请参见下文），并且操作成功

aws rekognition detect-faces \
--image '{"S3Object":{"Bucket":"Bucketname","Name":"s3ObjectKey"}}' \
--attributes "ALL" \
--region us-east-1 \
--profile adminuser

---

您可以使用以下代码创建rekognition客户端的实例：

AWSCredentials credentials;
try {
    credentials = new ProfileCredentialsProvider("default").getCredentials();
} catch (Exception e) {
    throw new AmazonClientException("Cannot load the credentials from the credential profiles file. "
            + "Please make sure that your credentials file is at the correct "
            + "location (/Users/<userid>/.aws/credentials), and is in a valid format.", e);
}
AmazonRekognitionClient rekognitionClient = new AmazonRekognitionClient(credentials)
        .withEndpoint("rekognition.eu-west-1.amazonaws.com");
rekognitionClient.setSignerRegionOverride("eu-west-1");

AWSCredentials凭证；
试一试{
凭据=新的ProfileCredentialsProvider（“默认”）.getCredentials（）；
}捕获（例外e）{
抛出新的AmazonClientException（“无法从凭据配置文件文件加载凭据。”
+“请确保您的凭据文件位于正确的位置”
+“位置（/Users/.aws/credentials），且格式有效。”，e）；
}
AmazonRekognitionClient rekognitionClient=新的AmazonRekognitionClient（凭据）
.withEndpoint（“rekognition.eu-west-1.amazonaws.com”）；
rekognitionClient.setSignerRegionOverride（“eu-west-1”）；

下面是一个完整的代码示例，使用软件.amazon.awssdk.services.rekognion.RekognitionClient对象（API的第2版）来比较两个面

您可以在AWS文档中找到更多使用RekognitionClient版本2的示例

此外，要从IntelliJ运行这些示例，您需要确保具有正确的POM。在AWS Github示例中，始终列出相应的POM

package com.example.rekognition;

// snippet-start:[rekognition.java2.compare_faces.import]
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.rekognition.RekognitionClient;
import software.amazon.awssdk.services.rekognition.model.RekognitionException;
import software.amazon.awssdk.services.rekognition.model.Image;
import software.amazon.awssdk.services.rekognition.model.CompareFacesRequest;
import software.amazon.awssdk.services.rekognition.model.CompareFacesResponse;
import software.amazon.awssdk.services.rekognition.model.CompareFacesMatch;
import software.amazon.awssdk.services.rekognition.model.ComparedFace;
import software.amazon.awssdk.services.rekognition.model.BoundingBox;
import software.amazon.awssdk.core.SdkBytes;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.util.List;
// snippet-end:[rekognition.java2.compare_faces.import]


public class CompareFaces {

    public static void main(String[] args) {

        final String USAGE = "\n" +
                "CompareFaces - how to compare two faces in two images\n\n" +
                "Usage: CompareFaces <pathSource> <pathTarget>\n\n" +
                "Where:\n" +
                "pathSource - the path to the source image (ie, C:\\AWS\\pic1.png) \n " +
                "pathTarget - the path to the target image (ie, C:\\AWS\\pic2.png) \n\n";

        Float similarityThreshold = 70F;
        String sourceImage = args[0];
        String targetImage = args[1];

        Region region = Region.US_EAST_2;
        RekognitionClient rekClient = RekognitionClient.builder()
                .region(region)
                .build();

        compareTwoFaces(rekClient, similarityThreshold, sourceImage, targetImage);
   }

    // snippet-start:[rekognition.java2.compare_faces.main]
    public static void compareTwoFaces(RekognitionClient rekClient, Float similarityThreshold, String sourceImage, String targetImage) {

        try {
            InputStream sourceStream = new FileInputStream(new File(sourceImage));
            InputStream tarStream = new FileInputStream(new File(targetImage));

            SdkBytes sourceBytes = SdkBytes.fromInputStream(sourceStream);
            SdkBytes targetBytes = SdkBytes.fromInputStream(tarStream);

            // Create an Image object for the source image
            Image souImage = Image.builder()
            .bytes(sourceBytes)
            .build();

            // Create an Image object for the target image
            Image tarImage = Image.builder()
                    .bytes(targetBytes)
                    .build();

            // Create a CompareFacesRequest object
            CompareFacesRequest facesRequest = CompareFacesRequest.builder()
                    .sourceImage(souImage)
                    .targetImage(tarImage)
                    .similarityThreshold(similarityThreshold)
                    .build();

            // Compare the two images
            CompareFacesResponse compareFacesResult = rekClient.compareFaces(facesRequest);

            // Display results
            List<CompareFacesMatch> faceDetails = compareFacesResult.faceMatches();
            for (CompareFacesMatch match: faceDetails){
                ComparedFace face= match.face();
                BoundingBox position = face.boundingBox();
                System.out.println("Face at " + position.left().toString()
                        + " " + position.top()
                        + " matches with " + face.confidence().toString()
                        + "% confidence.");

            }
            List<ComparedFace> uncompared = compareFacesResult.unmatchedFaces();

            System.out.println("There was " + uncompared.size()
                    + " face(s) that did not match");
            System.out.println("Source image rotation: " + compareFacesResult.sourceImageOrientationCorrection());
            System.out.println("target image rotation: " + compareFacesResult.targetImageOrientationCorrection());

        } catch(RekognitionException | FileNotFoundException e) {
            System.out.println("Failed to load source image " + sourceImage);
            System.exit(1);
        }
        // snippet-end:[rekognition.java2.compare_faces.main]
    }
}

package com.example.rekognion；
//代码段开始：[rekognition.java2.compare_faces.import]
导入software.amazon.awssdk.regions.Region；
导入software.amazon.awssdk.services.rekognition.RekognitionClient；
导入software.amazon.awssdk.services.rekognition.model.RekognitionException；
导入software.amazon.awssdk.services.rekognion.model.Image；
导入software.amazon.awssdk.services.rekognion.model.CompareFacesRequest；
导入software.amazon.awssdk.services.rekognion.model.CompareFacesResponse；
导入software.amazon.awssdk.services.rekognion.model.CompareFacesMatch；
导入software.amazon.awssdk.services.rekognion.model.ComparedFace；
导入software.amazon.awssdk.services.rekognion.model.BoundingBox；
导入software.amazon.awssdk.core.SdkBytes；
导入java.io.File；
导入java.io.FileInputStream；
导入java.io.FileNotFoundException；
导入java.io.InputStream；
导入java.util.List；
//代码段结尾：[rekognition.java2.compare_faces.import]
公共类比较{
公共静态void main（字符串[]args）{
最终字符串用法=“\n”+
“比较-如何比较两个图像中的两个面\n\n”+
“用法：比较\n\n”+
“其中：\n”+
pathSource-到源映像的路径（即，C:\\AWS\\pic1.png）\n+
“pathTarget-目标图像的路径（即，C:\\AWS\\pic2.png）\n\n”；
浮点相似阈值=70F；
字符串sourceImage=args[0]；
字符串targetImage=args[1]；
Region Region=Region.US_EAST_2；
RekognitionClient rekClient=RekognitionClient.builder（）
.地区（地区）
.build（）；
比较面（rekClient、相似性阈值、源图像、目标图像）；
}
//代码段开始：[rekognition.java2.compare_faces.main]
公共静态无效比较面（RekognitionClient rekClient、浮点相似性阈值、字符串源映像、字符串目标映像）{
试一试{
InputStream sourceStream=新文件InputStream（新文件（sourceImage））；
InputStream tarStream=新文件InputStream（新文件（targetImage））；
SdkBytes sourceBytes=SdkBytes.fromInputStream（sourceStream）；
SdkBytes targetBytes=SdkBytes.fromInputStream（tarStream）；
//为源图像创建图像对象
Image souImage=Image.builder（）
.bytes（源字节）
.build（）；
//为目标图像创建图像对象
Image tarImage=Image.builder（）
.bytes（targetBytes）
.build（）；
//创建CompareFacesRequest对象
CompareFacesRequest facesRequest=CompareFacesRequest.builder（）
.sourceImage（souImage）
.targetImage（tarImage）
.相似性阈值（相似性阈值）
.build（）；
//比较两幅图像
CompareFacesResponse compareFacesResult=rekClient.compareFaces（facesRequest）；
//显示结果
List faceDetails=compareFacesResult.faceMatches（）；
用于（比较匹配：faceDetails）{
ComparedFace=match.face（）；
BoundingBox位置=face.BoundingBox（）；
System.out.println（“位于“+位置的面.left（）.toString（））
+“”+位置。顶部（）
+与“+face.confidence（）.toString（）匹配”
+百分之百的信心;；
}
List uncompared=compareFacesResult.unmatchedFaces（）；
System.out.println（“有”+uncompare.size（）
+“不匹配的面”）；
System.out.println（“源图像旋转：+compareFacesResult.sourceImageOrientationCorrection（））；
System.out.println（“目标图像旋转：+compareFacesResult.targetImageOrientationCorrection（））；
}捕获（RekognitionException | FileNotFoundException e）{
System.out.println（“加载源映像失败”+源映像）；
系统出口（1）；
}
//代码段结尾：[rekognition.java2.compare_faces.main]
}
}

---

您可以在这里找到Java V2的完整示例：

能否显示您的

请求

？我的请求：

{Image:{S3Ob
package com.example.rekognition;

// snippet-start:[rekognition.java2.compare_faces.import]
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.rekognition.RekognitionClient;
import software.amazon.awssdk.services.rekognition.model.RekognitionException;
import software.amazon.awssdk.services.rekognition.model.Image;
import software.amazon.awssdk.services.rekognition.model.CompareFacesRequest;
import software.amazon.awssdk.services.rekognition.model.CompareFacesResponse;
import software.amazon.awssdk.services.rekognition.model.CompareFacesMatch;
import software.amazon.awssdk.services.rekognition.model.ComparedFace;
import software.amazon.awssdk.services.rekognition.model.BoundingBox;
import software.amazon.awssdk.core.SdkBytes;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.util.List;
// snippet-end:[rekognition.java2.compare_faces.import]


public class CompareFaces {

    public static void main(String[] args) {

        final String USAGE = "\n" +
                "CompareFaces - how to compare two faces in two images\n\n" +
                "Usage: CompareFaces <pathSource> <pathTarget>\n\n" +
                "Where:\n" +
                "pathSource - the path to the source image (ie, C:\\AWS\\pic1.png) \n " +
                "pathTarget - the path to the target image (ie, C:\\AWS\\pic2.png) \n\n";

        Float similarityThreshold = 70F;
        String sourceImage = args[0];
        String targetImage = args[1];

        Region region = Region.US_EAST_2;
        RekognitionClient rekClient = RekognitionClient.builder()
                .region(region)
                .build();

        compareTwoFaces(rekClient, similarityThreshold, sourceImage, targetImage);
   }

    // snippet-start:[rekognition.java2.compare_faces.main]
    public static void compareTwoFaces(RekognitionClient rekClient, Float similarityThreshold, String sourceImage, String targetImage) {

        try {
            InputStream sourceStream = new FileInputStream(new File(sourceImage));
            InputStream tarStream = new FileInputStream(new File(targetImage));

            SdkBytes sourceBytes = SdkBytes.fromInputStream(sourceStream);
            SdkBytes targetBytes = SdkBytes.fromInputStream(tarStream);

            // Create an Image object for the source image
            Image souImage = Image.builder()
            .bytes(sourceBytes)
            .build();

            // Create an Image object for the target image
            Image tarImage = Image.builder()
                    .bytes(targetBytes)
                    .build();

            // Create a CompareFacesRequest object
            CompareFacesRequest facesRequest = CompareFacesRequest.builder()
                    .sourceImage(souImage)
                    .targetImage(tarImage)
                    .similarityThreshold(similarityThreshold)
                    .build();

            // Compare the two images
            CompareFacesResponse compareFacesResult = rekClient.compareFaces(facesRequest);

            // Display results
            List<CompareFacesMatch> faceDetails = compareFacesResult.faceMatches();
            for (CompareFacesMatch match: faceDetails){
                ComparedFace face= match.face();
                BoundingBox position = face.boundingBox();
                System.out.println("Face at " + position.left().toString()
                        + " " + position.top()
                        + " matches with " + face.confidence().toString()
                        + "% confidence.");

            }
            List<ComparedFace> uncompared = compareFacesResult.unmatchedFaces();

            System.out.println("There was " + uncompared.size()
                    + " face(s) that did not match");
            System.out.println("Source image rotation: " + compareFacesResult.sourceImageOrientationCorrection());
            System.out.println("target image rotation: " + compareFacesResult.targetImageOrientationCorrection());

        } catch(RekognitionException | FileNotFoundException e) {
            System.out.println("Failed to load source image " + sourceImage);
            System.exit(1);
        }
        // snippet-end:[rekognition.java2.compare_faces.main]
    }
}