设置 Amazon SQS 队列属性

以下代码示例演示如何设置 Amazon SQS 队列的属性。

操作示例是大型程序的代码摘录，必须在上下文中运行。在以下代码示例中，您可以查看此操作的上下文：

• 将消息发布到队列

.NET

AWS SDK for .NET

注意

还有更多相关信息 GitHub。在 AWS 代码示例存储库中查找完整示例，了解如何进行设置和运行。

为主题设置队列的策略属性。

    /// <summary>
    /// Set the policy attribute of a queue for a topic.
    /// </summary>
    /// <param name="queueArn">The ARN of the queue.</param>
    /// <param name="topicArn">The ARN of the topic.</param>
    /// <param name="queueUrl">The url for the queue.</param>
    /// <returns>True if successful.</returns>
    public async Task<bool> SetQueuePolicyForTopic(string queueArn, string topicArn, string queueUrl)
    {
        var queuePolicy = "{" +
                                "\"Version\": \"2012-10-17\"," +
                                "\"Statement\": [{" +
                                     "\"Effect\": \"Allow\"," +
                                     "\"Principal\": {" +
                                         $"\"Service\": " +
                                             "\"sns.amazonaws.com\"" +
                                            "}," +
                                     "\"Action\": \"sqs:SendMessage\"," +
                                     $"\"Resource\": \"{queueArn}\"," +
                                      "\"Condition\": {" +
                                           "\"ArnEquals\": {" +
                                                $"\"aws:SourceArn\": \"{topicArn}\"" +
                                            "}" +
                                        "}" +
                                "}]" +
                             "}";
        var attributesResponse = await _amazonSQSClient.SetQueueAttributesAsync(
            new SetQueueAttributesRequest()
            {
                QueueUrl = queueUrl,
                Attributes = new Dictionary<string, string>() { { "Policy", queuePolicy } }
            });
        return attributesResponse.HttpStatusCode == HttpStatusCode.OK;
    }

• 有关 API 的详细信息，请参阅 AWS SDK for .NETAPI 参考SetQueueAttributes中的。

C++

适用于 C++ 的 SDK

注意

还有更多相关信息 GitHub。在 AWS 代码示例存储库中查找完整示例，了解如何进行设置和运行。

        Aws::Client::ClientConfiguration clientConfig;
        // Optional: Set to the AWS Region (overrides config file).
        // clientConfig.region = "us-east-1";

//! Set the value for an attribute in an Amazon Simple Queue Service (Amazon SQS) queue.
/*!
  \param queueUrl: An Amazon SQS queue URL.
  \param attributeName: An attribute name enum.
  \param attribute: The attribute value as a string.
  \param clientConfiguration: AWS client configuration.
  \return bool: Function succeeded.
 */
bool AwsDoc::SQS::setQueueAttributes(const Aws::String &queueURL,
                                     Aws::SQS::Model::QueueAttributeName attributeName,
                                     const Aws::String &attribute,
                                     const Aws::Client::ClientConfiguration &clientConfiguration) {
    Aws::SQS::SQSClient sqsClient(clientConfiguration);

    Aws::SQS::Model::SetQueueAttributesRequest request;
    request.SetQueueUrl(queueURL);
    request.AddAttributes(
            attributeName,
            attribute);

    const Aws::SQS::Model::SetQueueAttributesOutcome outcome = sqsClient.SetQueueAttributes(
            request);
    if (outcome.IsSuccess()) {
        std::cout << "Successfully set the attribute  " <<
                  Aws::SQS::Model::QueueAttributeNameMapper::GetNameForQueueAttributeName(
                          attributeName)
                  << " with value " << attribute << " in queue " <<
                  queueURL << "." << std::endl;
    }
    else {
        std::cout << "Error setting attribute for  queue " <<
                  queueURL << ": " << outcome.GetError().GetMessage() <<
                  std::endl;
    }

    return outcome.IsSuccess();
}

• 有关 API 的详细信息，请参阅 AWS SDK for C++API 参考SetQueueAttributes中的。

CLI

AWS CLI

设置队列属性

此示例将指定队列的传输延迟设置为 10 秒，最大消息大小为 128 KB（128 KB * 1,024 字节），消息保留期为 3 天（3 天 * 24 小时 * 60 分钟 * 60 秒），接收消息等待时间为 20 秒，默认可见性超时为 60 秒。此示例还将指定的死信队列与最大接收数 1,000 条消息相关联。

命令:

aws sqs set-queue-attributes --queue-url https://sqs.us-east-1.amazonaws.com/80398EXAMPLE/MyNewQueue --attributes file://set-queue-attributes.json

输入文件 (set-queue-attributes.json)：

{
  "DelaySeconds": "10",
  "MaximumMessageSize": "131072",
  "MessageRetentionPeriod": "259200",
  "ReceiveMessageWaitTimeSeconds": "20",
  "RedrivePolicy": "{\"deadLetterTargetArn\":\"arn:aws:sqs:us-east-1:80398EXAMPLE:MyDeadLetterQueue\",\"maxReceiveCount\":\"1000\"}",
  "VisibilityTimeout": "60"
}

输出：

None.

• 有关 API 的详细信息，请参阅AWS CLI命令参考SetQueueAttributes中的。

Go

适用于 Go V2 的 SDK

注意

还有更多相关信息 GitHub。在 AWS 代码示例存储库中查找完整示例，了解如何进行设置和运行。

// SqsActions encapsulates the Amazon Simple Queue Service (Amazon SQS) actions
// used in the examples.
type SqsActions struct {
	SqsClient *sqs.Client
}



// AttachSendMessagePolicy uses the SetQueueAttributes action to attach a policy to an
// Amazon SQS queue that allows the specified Amazon SNS topic to send messages to the
// queue.
func (actor SqsActions) AttachSendMessagePolicy(queueUrl string, queueArn string, topicArn string) error {
	policyDoc := PolicyDocument{
		Version: "2012-10-17",
		Statement: []PolicyStatement{{
			Effect:    "Allow",
			Action:    "sqs:SendMessage",
			Principal: map[string]string{"Service": "sns.amazonaws.com"},
			Resource:  aws.String(queueArn),
			Condition: PolicyCondition{"ArnEquals": map[string]string{"aws:SourceArn": topicArn}},
		}},
	}
	policyBytes, err := json.Marshal(policyDoc)
	if err != nil {
		log.Printf("Couldn't create policy document. Here's why: %v\n", err)
		return err
	}
	_, err = actor.SqsClient.SetQueueAttributes(context.TODO(), &sqs.SetQueueAttributesInput{
		Attributes: map[string]string{
			string(types.QueueAttributeNamePolicy): string(policyBytes),
		},
		QueueUrl: aws.String(queueUrl),
	})
	if err != nil {
		log.Printf("Couldn't set send message policy on queue %v. Here's why: %v\n", queueUrl, err)
	}
	return err
}

// PolicyDocument defines a policy document as a Go struct that can be serialized
// to JSON.
type PolicyDocument struct {
	Version   string
	Statement []PolicyStatement
}

// PolicyStatement defines a statement in a policy document.
type PolicyStatement struct {
	Effect    string
	Action    string
	Principal map[string]string `json:",omitempty"`
	Resource  *string           `json:",omitempty"`
	Condition PolicyCondition   `json:",omitempty"`
}

// PolicyCondition defines a condition in a policy.
type PolicyCondition map[string]map[string]string

• 有关 API 的详细信息，请参阅 AWS SDK for GoAPI 参考SetQueueAttributes中的。

JavaScript

适用于 JavaScript (v3) 的软件开发工具包

注意

还有更多相关信息 GitHub。在 AWS 代码示例存储库中查找完整示例，了解如何进行设置和运行。

import { SetQueueAttributesCommand, SQSClient } from "@aws-sdk/client-sqs";

const client = new SQSClient({});
const SQS_QUEUE_URL = "queue-url";

export const main = async (queueUrl = SQS_QUEUE_URL) => {
  const command = new SetQueueAttributesCommand({
    QueueUrl: queueUrl,
    Attributes: {
      DelaySeconds: "1",
    },
  });

  const response = await client.send(command);
  console.log(response);
  return response;
};

将 Amazon SQS 队列配置为使用长轮询。

import { SetQueueAttributesCommand, SQSClient } from "@aws-sdk/client-sqs";

const client = new SQSClient({});
const SQS_QUEUE_URL = "queue_url";

export const main = async (queueUrl = SQS_QUEUE_URL) => {
  const command = new SetQueueAttributesCommand({
    Attributes: {
      ReceiveMessageWaitTimeSeconds: "20",
    },
    QueueUrl: queueUrl,
  });

  const response = await client.send(command);
  console.log(response);
  return response;
};

• 有关 API 的详细信息，请参阅 AWS SDK for JavaScriptAPI 参考SetQueueAttributes中的。