Question

对于Java SDK V1，我有一个lambda函数，如下所示：

public static void doSomethingLambda(S3Event s3Event) throws Exception {
    s3Event....

但是在SDK V2中，S3Event似乎不存在。除非我使用了错误的依赖关系？（V2的文档非常稀疏）

这是我的SDK V1依赖项：

  <dependency>
        <groupId>com.amazonaws</groupId>
        <artifactId>aws-lambda-java-events</artifactId>
        <version>1.3.0</version>
    </dependency>

    <dependency>
        <groupId>com.amazonaws</groupId>
        <artifactId>aws-java-sdk-s3</artifactId>
        <version>1.11.534</version>
    </dependency>

和SDK V2：

 <dependency>
        <groupId>software.amazon.awssdk</groupId>
        <artifactId>s3</artifactId>
    </dependency>
    <dependency>
        <groupId>software.amazon.awssdk</groupId>
        <artifactId>lambda</artifactId>
    </dependency>

Answer 1

根据5月18日为aws lambda java libs to aws sdk java v2

提供的决议

aws-lambda-java-events version 3.0.0 was just released with support for all events (including S3) without the inclusion of SDK v1 dependencies.
This should help you make use of the AWS SDK for Java v2 and reduce your function package size as the v1 SDK does not need to be bundled anymore if it's not explicitly needed.

源代码为here

Answer 2

事件参数是json，如果您在其上调用getClass（）。getName（），则它最终将是LinkedHashMap。如果您在AWS控制台中进行测试触发器，它将为您提供一个示例，您可以modernize-concat-nested-namespaces找到有关该示例的信息。以下是2.2版

{  
   "Records":[  
      {  
         "eventVersion":"2.2",
         "eventSource":"aws:s3",
         "awsRegion":"us-west-2",
         "eventTime":The time, in ISO-8601 format, for example, 1970-01-01T00:00:00.000Z, when Amazon S3 finished processing the request,
         "eventName":"event-type",
         "userIdentity":{  
            "principalId":"Amazon-customer-ID-of-the-user-who-caused-the-event"
         },
         "requestParameters":{  
            "sourceIPAddress":"ip-address-where-request-came-from"
         },
         "responseElements":{  
            "x-amz-request-id":"Amazon S3 generated request ID",
            "x-amz-id-2":"Amazon S3 host that processed the request"
         },
         "s3":{  
            "s3SchemaVersion":"1.0",
            "configurationId":"ID found in the bucket notification configuration",
            "bucket":{  
               "name":"bucket-name",
               "ownerIdentity":{  
                  "principalId":"Amazon-customer-ID-of-the-bucket-owner"
               },
               "arn":"bucket-ARN"
            },
            "object":{  
               "key":"object-key",
               "size":object-size,
               "eTag":"object eTag",
               "versionId":"object version if bucket is versioning-enabled, otherwise null",
               "sequencer": "a string representation of a hexadecimal value used to determine event sequence, 
                   only used with PUTs and DELETEs"
            }
         },
         "glacierEventData": {
            "restoreEventData": {
               "lifecycleRestorationExpiryTime": "The time, in ISO-8601 format, for example, 1970-01-01T00:00:00.000Z, of Restore Expiry",
               "lifecycleRestoreStorageClass": "Source storage class for restore"
            }
         }
      }
   ]
}

Lambda S3Event的AWS开发工具包V2类是什么？

2 个答案: