以下是使用AWS Java SDK v2中的SQS监听器来监听S3 CreateEvent的示例代码:
首先,您需要在pom.xml文件中添加AWS Java SDK v2的依赖项:
software.amazon.awssdk
s3
software.amazon.awssdk
sqs
接下来,您可以使用以下代码创建SQS队列并将其与S3存储桶事件进行关联:
import software.amazon.awssdk.auth.credentials.DefaultCredentialsProvider;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.s3.S3Client;
import software.amazon.awssdk.services.s3.model.*;
import software.amazon.awssdk.services.sqs.SqsClient;
import software.amazon.awssdk.services.sqs.model.*;
public class S3SQSListenerExample {
public static void main(String[] args) {
String bucketName = "your-bucket-name";
String queueName = "your-queue-name";
String s3EventName = "s3:ObjectCreated:*";
// 创建S3和SQS客户端
S3Client s3Client = S3Client.builder()
.credentialsProvider(DefaultCredentialsProvider.create())
.region(Region.US_EAST_1)
.build();
SqsClient sqsClient = SqsClient.builder()
.credentialsProvider(DefaultCredentialsProvider.create())
.region(Region.US_EAST_1)
.build();
// 创建SQS队列
CreateQueueResponse createQueueResponse = sqsClient.createQueue(CreateQueueRequest.builder()
.queueName(queueName)
.build());
String queueUrl = createQueueResponse.queueUrl();
try {
// 获取S3存储桶的ARN
String bucketArn = s3Client.getBucketLocation(GetBucketLocationRequest.builder()
.bucket(bucketName)
.build()).locationConstraintAsString();
// 配置S3存储桶事件通知
s3Client.putBucketNotificationConfiguration(PutBucketNotificationConfigurationRequest.builder()
.bucket(bucketName)
.notificationConfiguration(BucketNotificationConfiguration.builder()
.queueConfigurations(QueueConfiguration.builder()
.queueArn(queueUrl)
.events(s3EventName)
.build())
.build())
.build());
// 使用长轮询接收SQS消息
ReceiveMessageResponse receiveMessageResponse = sqsClient.receiveMessage(ReceiveMessageRequest.builder()
.queueUrl(queueUrl)
.waitTimeSeconds(20)
.build());
for (Message message : receiveMessageResponse.messages()) {
System.out.println("Received message: " + message.body());
}
} finally {
// 删除S3存储桶事件通知和SQS队列
s3Client.deleteBucketNotificationConfiguration(DeleteBucketNotificationConfigurationRequest.builder()
.bucket(bucketName)
.build());
sqsClient.deleteQueue(DeleteQueueRequest.builder()
.queueUrl(queueUrl)
.build());
}
}
}
请确保替换代码中的your-bucket-name
和your-queue-name
为您自己的S3存储桶名称和SQS队列名称。
这段代码首先创建了S3和SQS客户端,然后使用createQueue
方法创建了一个SQS队列。接下来,它获取S3存储桶的ARN,并使用putBucketNotificationConfiguration
方法将S3存储桶的CreateEvent与SQS队列关联起来。最后,它使用receiveMessage
方法从SQS队列接收消息,并打印出接收到的消息。
注意:上面的代码只是一个示例,如果您想将其用于生产环境,请根据实际需求进行适当的修改和错误处理。