适用于 Java 的 AWS 开发工具包
开发人员指南
AWS 文档中描述的 AWS 服务或功能可能因区域而异。要查看适用于中国区域的差异,请参阅中国的 AWS 服务入门

使用 Amazon SQS 消息队列

消息队列是用于在 Amazon SQS 中可靠地发送消息的逻辑容器。有两种类型的队列:标准先进先出 (FIFO)。要了解有关队列以及这些类型之间的差异的更多信息,请参阅 Amazon SQS 开发人员指南

本主题介绍如何使用 AWS SDK for Java 来创建、列出、删除和获取 Amazon SQS 队列的 URL。

创建队列

使用 SqsClientcreateQueue 方法,然后提供一个描述队列参数的 CreateQueueRequest 对象。

导入

import software.amazon.awssdk.services.sqs.SqsClient; import software.amazon.awssdk.services.sqs.model.ChangeMessageVisibilityRequest; import software.amazon.awssdk.services.sqs.model.CreateQueueRequest; import software.amazon.awssdk.services.sqs.model.DeleteMessageRequest; import software.amazon.awssdk.services.sqs.model.DeleteQueueRequest; import software.amazon.awssdk.services.sqs.model.GetQueueUrlRequest; import software.amazon.awssdk.services.sqs.model.GetQueueUrlResponse; import software.amazon.awssdk.services.sqs.model.ListQueuesRequest; import software.amazon.awssdk.services.sqs.model.ListQueuesResponse; import software.amazon.awssdk.services.sqs.model.Message; import software.amazon.awssdk.services.sqs.model.ReceiveMessageRequest; import software.amazon.awssdk.services.sqs.model.SendMessageBatchRequest; import software.amazon.awssdk.services.sqs.model.SendMessageBatchRequestEntry; import software.amazon.awssdk.services.sqs.model.SendMessageRequest;

代码

CreateQueueRequest createQueueRequest = CreateQueueRequest.builder().queueName(queueName).build(); sqsClient.createQueue(createQueueRequest);

请参阅 GitHub 上的完整示例

列出队列

要列出您的账户的 Amazon SQS 队列,请使用 ListQueuesRequest 对象调用 SqsClientlistQueues 方法。

使用 listQueues 重载(不带任何参数)将返回所有队列,最多 1,000 个队列。您可以向 ListQueuesRequest 对象提供一个队列名称前缀,以将结果限制为与该前缀匹配的队列。

导入

import software.amazon.awssdk.services.sqs.SqsClient; import software.amazon.awssdk.services.sqs.model.ChangeMessageVisibilityRequest; import software.amazon.awssdk.services.sqs.model.CreateQueueRequest; import software.amazon.awssdk.services.sqs.model.DeleteMessageRequest; import software.amazon.awssdk.services.sqs.model.DeleteQueueRequest; import software.amazon.awssdk.services.sqs.model.GetQueueUrlRequest; import software.amazon.awssdk.services.sqs.model.GetQueueUrlResponse; import software.amazon.awssdk.services.sqs.model.ListQueuesRequest; import software.amazon.awssdk.services.sqs.model.ListQueuesResponse; import software.amazon.awssdk.services.sqs.model.Message; import software.amazon.awssdk.services.sqs.model.ReceiveMessageRequest; import software.amazon.awssdk.services.sqs.model.SendMessageBatchRequest; import software.amazon.awssdk.services.sqs.model.SendMessageBatchRequestEntry; import software.amazon.awssdk.services.sqs.model.SendMessageRequest;

代码

String prefix = "que"; ListQueuesRequest listQueuesRequest = ListQueuesRequest.builder().queueNamePrefix(prefix).build(); ListQueuesResponse listQueuesResponse = sqsClient.listQueues(listQueuesRequest); for (String url : listQueuesResponse.queueUrls()) { System.out.println(url); }

请参阅 GitHub 上的完整示例

获取队列的 URL

使用 GetQueueUrlRequest 对象调用 SqsClientgetQueueUrl 方法。

导入

import software.amazon.awssdk.services.sqs.SqsClient; import software.amazon.awssdk.services.sqs.model.ChangeMessageVisibilityRequest; import software.amazon.awssdk.services.sqs.model.CreateQueueRequest; import software.amazon.awssdk.services.sqs.model.DeleteMessageRequest; import software.amazon.awssdk.services.sqs.model.DeleteQueueRequest; import software.amazon.awssdk.services.sqs.model.GetQueueUrlRequest; import software.amazon.awssdk.services.sqs.model.GetQueueUrlResponse; import software.amazon.awssdk.services.sqs.model.ListQueuesRequest; import software.amazon.awssdk.services.sqs.model.ListQueuesResponse; import software.amazon.awssdk.services.sqs.model.Message; import software.amazon.awssdk.services.sqs.model.ReceiveMessageRequest; import software.amazon.awssdk.services.sqs.model.SendMessageBatchRequest; import software.amazon.awssdk.services.sqs.model.SendMessageBatchRequestEntry; import software.amazon.awssdk.services.sqs.model.SendMessageRequest;

代码

GetQueueUrlResponse getQueueUrlResponse = sqsClient.getQueueUrl(GetQueueUrlRequest.builder().queueName(queueName).build()); String queueUrl = getQueueUrlResponse.queueUrl(); System.out.println(queueUrl);

请参阅 GitHub 上的完整示例

删除队列

DeleteMessageRequest 对象提供队列的 URL。然后,调用 SqsClientdeleteQueue 方法。

导入

import software.amazon.awssdk.services.sqs.SqsClient; import software.amazon.awssdk.services.sqs.model.ChangeMessageVisibilityRequest; import software.amazon.awssdk.services.sqs.model.CreateQueueRequest; import software.amazon.awssdk.services.sqs.model.DeleteMessageRequest; import software.amazon.awssdk.services.sqs.model.DeleteQueueRequest; import software.amazon.awssdk.services.sqs.model.GetQueueUrlRequest; import software.amazon.awssdk.services.sqs.model.GetQueueUrlResponse; import software.amazon.awssdk.services.sqs.model.ListQueuesRequest; import software.amazon.awssdk.services.sqs.model.ListQueuesResponse; import software.amazon.awssdk.services.sqs.model.Message; import software.amazon.awssdk.services.sqs.model.ReceiveMessageRequest; import software.amazon.awssdk.services.sqs.model.SendMessageBatchRequest; import software.amazon.awssdk.services.sqs.model.SendMessageBatchRequestEntry; import software.amazon.awssdk.services.sqs.model.SendMessageRequest;

代码

for (Message message : messages) { DeleteMessageRequest deleteMessageRequest = DeleteMessageRequest.builder() .queueUrl(queueUrl) .receiptHandle(message.receiptHandle()) .build(); sqsClient.deleteMessage(deleteMessageRequest); }

请参阅 GitHub 上的完整示例

更多信息