使用Java sdk刪除AWS SQS消息

我正在探索AWS SQS服務。當試圖從使用java sdk的隊列中刪除消息時，我正面臨着一些問題。使用Java sdk刪除AWS SQS消息

隊列在SQS中創建，它有三條消息。該隊列由AWS S3存儲支持，用於處理大型郵件。

以下是用於通過輪詢多次來接收消息的方法。

接收SQS消息：

private static void receiveMessage(String queueUrl) { 
     // Receive messages 
     ReceiveMessageRequest receiveMessageRequest = new ReceiveMessageRequest(queueUrl).withMaxNumberOfMessages(10) 
       .withWaitTimeSeconds(10).withVisibilityTimeout(100); 
     List<Message> messages = sqsExtended.receiveMessage(receiveMessageRequest).getMessages(); 
     System.out.println("Number of mesasges : First poll : " + messages.size()); 
     while (messages.size() > 0) { 
      messages = pollForMessages(messages, receiveMessageRequest, queueUrl); 
      System.out.println("Messages in next poll : " + messages.size()); 
     } 
     if (messages.size() > 0) { 
      System.out.println("displaying last set of messages "); 
      for (int i = 0; i < messages.size(); i++) { 
       System.out.println("\nMessage received:"); 
       System.out.println(" ID: " + messages.get(i).getMessageId()); 
       System.out.println(" Receipt handle: " + messages.get(i).getReceiptHandle()); 
       System.out.println("approx. num of messages : " 
         + messages.get(i).getAttributes().get("ApproximateNumberOfMessages")); 
       System.out.println(" Message body (first sentence): " + messages.get(i).getBody().substring(0, 56)); 
       // deleteMessage(messages.get(i), queueUrl); 
      } 
      deleteMessage(messages, queueUrl); 
     } 
    }

方法來輪詢消息：

private static List<Message> pollForMessages(List<Message> messages, ReceiveMessageRequest receiveMessageRequest, 
      String queueUrl) { 
     // display the received messages 
     for (int i = 0; i < messages.size(); i++) { 
      System.out.println("\nMessage received:"); 
      System.out.println(" ID: " + messages.get(i).getMessageId()); 
      System.out.println(" Receipt handle: " + messages.get(i).getReceiptHandle()); 
      System.out.println(
        "approx. num of messages : " + messages.get(i).getAttributes().get("ApproximateNumberOfMessages")); 
      System.out.println(" Message body (first sentence): " + messages.get(i).getBody().substring(0, 56)); 
      // deleteMessage(messages.get(i), queueUrl); 
     } 
     deleteMessage(messages, queueUrl); 
     messages = sqsExtended.receiveMessage(receiveMessageRequest).getMessages(); 
     return messages; 
    }

刪除SQS消息：

private static void deleteMessage(List<Message> messages, String queueUrl) { 
     // Delete the messages 
     for (Message message : messages) { 
      DeleteMessageRequest dmr = new DeleteMessageRequest(); 
      dmr.withQueueUrl(queueUrl).withReceiptHandle(message.getReceiptHandle()); 
      sqsExtended.deleteMessage(dmr); 
      System.out.println("Deleted the message with Id : " + message.getMessageId()); 
     } 

    }

當作出deleteMessage方法調用，程序遇到以下情況例外：

java.lang.AbstractMethodError: com.amazon.sqs.javamessaging.AmazonSQSExtendedClient.deleteMessage(Lcom/

日誌消息：

Apr 21, 2017 5:32:56 PM com.amazon.sqs.javamessaging.ExtendedClientConfiguration setLargePayloadSupportEnabled 
INFO: Large-payload support enabled. 
Number of mesasges : First poll : 1 

Message received: 
ID: f4f00368-b308-4763-84cf-8e33e1931fed 
Receipt handle: AQEBwhLDOIMobJazre1KoSYoMlHajHD1A6j7gZClk1h4FYWAmFd0p6wIFU69rSuhhVdQef+qF6E6RQIQLWaLqS2r0/Kfw3rUrmppIkTcowsVRW36uJ3p4UqnNjZu0cxncNMw78kHfHRej0gwH0gvvMedZXvEimoXUYZq1+K3Gz35etKsUR9EPKuroYaHZ6Aghdu0Osb4cQu+iLxlBrANhFl63762V7EDEEjSeULyQm52wS/OQq7JiktRWFgyGkp/41tHlN3ARB0v2MM3wXaoZMBt8bAyGURXb+Nx+5e3UoSI5J8pQccSwFnk70N1lV7XUswBTk4549uJ0FPlEMoFef6cxeFi1nxEXkfwIJQ9e93wMJUGLnhsx7rNWhS9w6UCVv4yZoARBsMrQbg287LkACLLnw== 
approx. num of messages : null 
Message body (first sentence): { 
    "Type" : "Notification", 
    "MessageId" : "fc1b19bc-6 
Exception in thread "main" java.lang.AbstractMethodError: com.amazon.sqs.javamessaging.AmazonSQSExtendedClient.deleteMessage(Lcom/amazonaws/services/sqs/model/DeleteMessageRequest;)Lcom/amazonaws/services/sqs/model/DeleteMessageResult; 
    at org.nfjs.aws.sqs.SQSExtendedClient.deleteMessage(SQSExtendedClient.java:149) 
    at org.nfjs.aws.sqs.SQSExtendedClient.pollForMessages(SQSExtendedClient.java:139) 
    at org.nfjs.aws.sqs.SQSExtendedClient.receiveMessage(SQSExtendedClient.java:108) 
    at org.nfjs.aws.sqs.SQSExtendedClient.main(SQSExtendedClient.java:63)

我無法準確地計算出了異常的原因。我是否在上面的代碼片段中使用java sdk缺少任何東西？

在此先感謝您的任何建議。

來源

2017-04-21 Vignesh

我自己沒有使用Amazon SQS Extended Client Library for Java，所以我不能真正判斷細節，但看起來它已經與AWS Java SDK不同步。

看到Exeption on AmazonSQSExtendedClient.deleteMessage爲此（以及尚未解決）的問題，以及SQS Extended Client Lib not compatible with Core SDK 1.11.xx爲更一般的問題。

後者指向最終有幫助support aws-sdk-java 1.11.8拉的請求，雖然那個人現在也相當過時。

來源

2017-04-21 13:21:28

謝謝Henrik的建議。這個問題似乎是從maven倉庫中挑選出來的。 – Vignesh

當從https://github.com/awslabs/amazon-sqs-java-extended-client-lib（已下載源代碼和編譯）中挑選庫罐時，SQS消息正在成功刪除。

但是，當它從maven存儲庫中選取，如下所示它具有問題，如最初發布的問題中所述。

<dependency> 
     <groupId>com.amazonaws</groupId> 
     <artifactId>amazon-sqs-java-extended-client-lib</artifactId> 
     <version>1.0.0</version> 
</dependency>

我曾提出在github上寫明同一個問題（https://github.com/awslabs/amazon-sqs-java-extended-client-lib/issues/18）。

來源

2017-04-22 09:50:43 Vignesh

使用Java sdk刪除AWS SQS消息

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