从 Java 中的具有消息属性的队列接收消息时出现 AWS SQS 错误
AWS SQS error while receiving message from queue in Java with message attributes
我正在使用 AmazonSQS 发送消息。
AmazonSQS 客户端:
var sqs = AmazonSQSClientBuilder
.standard()
.withEndpointConfiguration(
buildEndpointConfiguration( configuration ) )
.withCredentials( buildCredentialsProvider( configuration ) )
.build();
设置属性:
var attributes = new HashMap<String, MessageAttributeValue>();
headers.forEach( ( key, value ) -> {
var headerValue = new MessageAttributeValue()
.withStringValue( value )
.withDataType( "String" );
attributes.put( key, headerValue );
} );
提出请求:
var request = new SendMessageRequest()
.withQueueUrl( eventQueueEndpoint )
.withMessageBody( messageBody )
.withMessageAttributes( attributes );
结果:
var result = sqs.sendMessage( request );
设置消息属性后,出现错误。使用 testcontainers Testcontainers Localstack
测试时的错误
com.amazonaws.SdkClientException: Unable to unmarshall response (Encountered unexpected event: [Stax Event #12]). Response Code: 200, Response Text:
at com.amazonaws.http.AmazonHttpClient$RequestExecutor.handleResponse(AmazonHttpClient.java:1750)
at com.amazonaws.http.AmazonHttpClient$RequestExecutor.handleSuccessResponse(AmazonHttpClient.java:1446)
Caused by: java.lang.RuntimeException: Encountered unexpected event: [Stax Event #12]
at com.amazonaws.transform.StaxUnmarshallerContext.readText(StaxUnmarshallerContext.java:127)
如何解决?
终于,经过长时间的研究,我找到了答案。默认情况下 AmazonSQS 的 MessageAttributeValue class 将属性包装到 CDATA 部分。解析到XML时出现异常。解决这个问题的方法是使用 byte[] 数据类型而不是 String 数据类型。
创建 MessageAttributeValue class 的正确方法是:
var attribute = new MessageAttributeValue()
.withDataType( "Binary" )
.withBinaryValue( ByteBuffer.wrap( message.getBytes( UTF8 ) ) );
问题出在 LocalStack 上。您可以通过访问 link Small deviation in SQS implementation
查看问题
我正在使用 AmazonSQS 发送消息。
AmazonSQS 客户端:
var sqs = AmazonSQSClientBuilder
.standard()
.withEndpointConfiguration(
buildEndpointConfiguration( configuration ) )
.withCredentials( buildCredentialsProvider( configuration ) )
.build();
设置属性:
var attributes = new HashMap<String, MessageAttributeValue>();
headers.forEach( ( key, value ) -> {
var headerValue = new MessageAttributeValue()
.withStringValue( value )
.withDataType( "String" );
attributes.put( key, headerValue );
} );
提出请求:
var request = new SendMessageRequest()
.withQueueUrl( eventQueueEndpoint )
.withMessageBody( messageBody )
.withMessageAttributes( attributes );
结果:
var result = sqs.sendMessage( request );
设置消息属性后,出现错误。使用 testcontainers Testcontainers Localstack
测试时的错误com.amazonaws.SdkClientException: Unable to unmarshall response (Encountered unexpected event: [Stax Event #12]). Response Code: 200, Response Text:
at com.amazonaws.http.AmazonHttpClient$RequestExecutor.handleResponse(AmazonHttpClient.java:1750)
at com.amazonaws.http.AmazonHttpClient$RequestExecutor.handleSuccessResponse(AmazonHttpClient.java:1446)
Caused by: java.lang.RuntimeException: Encountered unexpected event: [Stax Event #12]
at com.amazonaws.transform.StaxUnmarshallerContext.readText(StaxUnmarshallerContext.java:127)
如何解决?
终于,经过长时间的研究,我找到了答案。默认情况下 AmazonSQS 的 MessageAttributeValue class 将属性包装到 CDATA 部分。解析到XML时出现异常。解决这个问题的方法是使用 byte[] 数据类型而不是 String 数据类型。
创建 MessageAttributeValue class 的正确方法是:
var attribute = new MessageAttributeValue()
.withDataType( "Binary" )
.withBinaryValue( ByteBuffer.wrap( message.getBytes( UTF8 ) ) );
问题出在 LocalStack 上。您可以通过访问 link Small deviation in SQS implementation
查看问题