我不能發佈SNS信息如電子郵件

Question

我使用下面的代碼：

AmazonSNSClient snsClient = new AmazonSNSClient(credentials); 
snsClient.setRegion(Region.getRegion(Regions.SA_EAST_1)); 
        String msg = "My text published to SNS topic with email endpoint"; 
        String arn = "XXXXX"; 
        PublishRequest publishRequest = new PublishRequest("topicARN here",msg); 
        PublishResult publishResult = snsClient.publish(publishRequest); 

但我得到下面的錯誤。

「拋出：InvalidParameterException：狀態碼：400，AWS服務：AmazonSNS， AWS請求ID：446fef49-4eba-5484-ba4c-bf82682cdc46，AWS錯誤代碼： 無效參數，AWS錯誤消息：無效參數：TopicArn」

任何人都可以幫助我嗎？

Answer 1

我認爲你的主題ARN尚不存在。檢查它是否存在或明確創建它。

Here'a HelloWorldSNS你：

public class HelloWorldSNS { 

    public static void main(String[] args) throws Exception { 

     AmazonSNSClient client = Region.getRegion(Regions.EU_CENTRAL_1).createClient(AmazonSNSClient.class, null, 
       null); 
     CreateTopicResult createTopic = client.createTopic("myTopic"); 
     SubscribeResult subscribe = client.subscribe(createTopic.getTopicArn(), "email", "some@email.com"); 
     PublishRequest publishRequest = new PublishRequest(createTopic.getTopicArn(), "Test message"); 
     client.publish(publishRequest); 
    } 
}