Ausgabe
Ich erhalte die folgende Ausnahme, wenn ich versuche, eine Datei in AWS S3 Error zu lesen:
AWS-Anmeldeinformationen können von keinem Anbieter in der Kette geladen werden.
Ich habe einen öffentlichen Bucket und auch eine AWS IAM-Rolle mit vollständigem S3-Bucket-Zugriff und Textract-Zugriff generiert.
Ich versuche, ein Bild aus dem S3-Bucket zu lesen und den AWS Textract-Dienst auszuführen.
Java-Code:
package com.textract;
import com.amazonaws.auth.AWSStaticCredentialsProvider;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3Client;
import com.amazonaws.services.s3.AmazonS3ClientBuilder;
import com.amazonaws.services.s3.model.S3Object;
import com.amazonaws.services.s3.model.S3ObjectInputStream;
import software.amazon.awssdk.core.SdkBytes;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.textract.TextractClient;
import software.amazon.awssdk.services.textract.model.*;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
public class App {
public static Map<String, String> getRelationships(Map<String, Block> blockMap, Map<String, Block> keyMap,Map<String, Block> valueMap) {
Map<String, String> result = new LinkedHashMap<>();
for(Map.Entry<String, Block> itr : keyMap.entrySet()) {
Block valueBlock = findValue(itr.getValue(), valueMap);
String key = getText(itr.getValue(), blockMap);
String value = getText(valueBlock, blockMap);
result.put(key, value);
}
return result;
}
public static Block findValue(Block keyBlock, Map<String, Block> valueMap) {
Block b = null;
for(Relationship relationship : keyBlock.relationships()) {
if(relationship.type().toString().equals("VALUE")) {
for(String id : relationship.ids()) {
b = valueMap.get(id);
}
}
}
return b;
}
public static String getText(Block result, Map<String, Block> blockMap) {
StringBuilder stringBuilder = new StringBuilder();
for(Relationship relationship : result.relationships()) {
if(relationship.type().toString().equals("CHILD")) {
for(String id : relationship.ids()) {
Block b = blockMap.get(id);
if(b.blockTypeAsString().equals("WORD")) {
stringBuilder.append(b.text()).append(" ");
}
}
}
}
return stringBuilder.toString();
}
public static void main(String[] args) {
BasicAWSCredentials creds = new BasicAWSCredentials("<Secret Key>", "<Access Key>");
AmazonS3 s3client = AmazonS3Client.builder()
.withRegion("ap-southeast-1")
.withCredentials(new AWSStaticCredentialsProvider(creds))
.build();
// AmazonS3 s3client = AmazonS3ClientBuilder.standard().build();
S3Object s3Object = s3client.getObject("<S3 Bucket>", "image.jpg");
S3ObjectInputStream s3ObjectInputStream = s3Object.getObjectContent();
SdkBytes bytes = SdkBytes.fromInputStream(s3ObjectInputStream);
Document doc = Document.builder().bytes(bytes).build();
List<FeatureType> list = new ArrayList<>();
list.add(FeatureType.FORMS);
AnalyzeDocumentRequest request = AnalyzeDocumentRequest.builder().featureTypes(list).document(doc).build();
TextractClient textractClient = TextractClient.builder().region(Region.US_WEST_2).build();
AnalyzeDocumentResponse response = textractClient.analyzeDocument(request);
List<Block> blocks = response.blocks();
Map<String, Block> blockMap = new LinkedHashMap<>();
Map<String, Block> keyMap = new LinkedHashMap<>();
Map<String, Block> valueMap = new LinkedHashMap<>();
for (Block b : blocks) {
String block_id = b.id();
blockMap.put(block_id, b);
if(b.blockTypeAsString().equals("KEY_VALUE_SET")) {
for(EntityType entityType : b.entityTypes()) {
if(entityType.toString().equals("KEY")) {
keyMap.put(block_id, b);
} else {
valueMap.put(block_id, b);
}
}
}
}
System.out.println(getRelationships(blockMap, keyMap, valueMap));
textractClient.close();
}
}
Konsolenfehler:
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Exception in thread "main" software.amazon.awssdk.core.exception.SdkClientException: Unable to load credentials from any of the providers in the chain AwsCredentialsProviderChain(credentialsProviders=[SystemPropertyCredentialsProvider(), EnvironmentVariableCredentialsProvider(), WebIdentityTokenCredentialsProvider(), ProfileCredentialsProvider(), ContainerCredentialsProvider(), InstanceProfileCredentialsProvider()]) : [SystemPropertyCredentialsProvider(): Unable to load credentials from system settings. Access key must be specified either via environment variable (AWS_ACCESS_KEY_ID) or system property (aws.accessKeyId)., EnvironmentVariableCredentialsProvider(): Unable to load credentials from system settings. Access key must be specified either via environment variable (AWS_ACCESS_KEY_ID) or system property (aws.accessKeyId)., WebIdentityTokenCredentialsProvider(): Either the environment variable AWS_WEB_IDENTITY_TOKEN_FILE or the javaproperty aws.webIdentityTokenFile must be set., ProfileCredentialsProvider(): Profile file contained no credentials for profile 'default': ProfileFile(profiles=[]), ContainerCredentialsProvider(): Cannot fetch credentials from container - neither AWS_CONTAINER_CREDENTIALS_FULL_URI or AWS_CONTAINER_CREDENTIALS_RELATIVE_URI environment variables are set., InstanceProfileCredentialsProvider(): Unable to load credentials from service endpoint.]
at software.amazon.awssdk.core.exception.SdkClientException$BuilderImpl.build(SdkClientException.java:98)
at software.amazon.awssdk.auth.credentials.AwsCredentialsProviderChain.resolveCredentials(AwsCredentialsProviderChain.java:112)
at software.amazon.awssdk.auth.credentials.internal.LazyAwsCredentialsProvider.resolveCredentials(LazyAwsCredentialsProvider.java:45)
at software.amazon.awssdk.auth.credentials.DefaultCredentialsProvider.resolveCredentials(DefaultCredentialsProvider.java:104)
at software.amazon.awssdk.awscore.client.handler.AwsClientHandlerUtils.createExecutionContext(AwsClientHandlerUtils.java:76)
at software.amazon.awssdk.awscore.client.handler.AwsSyncClientHandler.createExecutionContext(AwsSyncClientHandler.java:68)
at software.amazon.awssdk.core.internal.handler.BaseSyncClientHandler.lambda$execute$1(BaseSyncClientHandler.java:97)
at software.amazon.awssdk.core.internal.handler.BaseSyncClientHandler.measureApiCallSuccess(BaseSyncClientHandler.java:167)
at software.amazon.awssdk.core.internal.handler.BaseSyncClientHandler.execute(BaseSyncClientHandler.java:94)
at software.amazon.awssdk.core.client.handler.SdkSyncClientHandler.execute(SdkSyncClientHandler.java:45)
at software.amazon.awssdk.awscore.client.handler.AwsSyncClientHandler.execute(AwsSyncClientHandler.java:55)
at software.amazon.awssdk.services.textract.DefaultTextractClient.analyzeDocument(DefaultTextractClient.java:215)
at com.textract.App.main(App.java:83)
Lösung
Ich habe es endlich mit dem folgenden Code mit dem folgenden Artikel zum Laufen gebracht:
Aufrufen von synchronen Amazon Textract-Operationen
String document="input.png";
String bucket="bucket";
AmazonTextract client = AmazonTextractClientBuilder.defaultClient();
DetectDocumentTextRequest request = new DetectDocumentTextRequest()
.withDocument(new Document()
.withS3Object(new S3Object()
.withName(document)
.withBucket(bucket)));
DetectDocumentTextResult result = client.detectDocumentText(request);
Arbeitscode
package aws.cloud.work;
import java.io.IOException;
import com.amazonaws.auth.AWSStaticCredentialsProvider;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.regions.Regions;
import com.amazonaws.services.textract.AmazonTextract;
import com.amazonaws.services.textract.AmazonTextractClientBuilder;
import com.amazonaws.services.textract.model.DetectDocumentTextRequest;
import com.amazonaws.services.textract.model.DetectDocumentTextResult;
import com.amazonaws.services.textract.model.Document;
import com.amazonaws.services.textract.model.S3Object;
public class TextractOriginalMaster3 {
static AmazonTextractClientBuilder clientBuilder = AmazonTextractClientBuilder.standard().withRegion(Regions.AP_SOUTHEAST_1);
public static void main(String[] args) throws IOException {
//Set AWS Credentials to use Textract
clientBuilder.setCredentials(new AWSStaticCredentialsProvider(new
BasicAWSCredentials("Accesskey", "Secretkey")));
//**Getting document from S3 Bucket Path
String document = "image.png";
String bucket = "Bucket Name";
//Calling AWS Textract Client
AmazonTextract client = clientBuilder.build();
DetectDocumentTextRequest request = new DetectDocumentTextRequest()
.withDocument(new Document()
.withS3Object(new S3Object()
.withName(document)
.withBucket(bucket)));
DetectDocumentTextResult result = client.detectDocumentText(request);
System.out.println(result);
result.getBlocks().forEach(block -> {
if (block.getBlockType().equals("LINE"))
System.out.println("text is " + block.getText() + " confidence is " + block.getConfidence());
});
}
}
Beantwortet von – watchme321
Antwort geprüft von – Cary Denson (FixError Admin)
