Java – dynamodbmapppingexception: mapping without hash key

2020-08-21 • Java

When writing dynamodb Java application, if the table and its data model are not configured correctly, you can receive "no mapped hash key" error when writing or retrieving from the table The complete exception is similar to:

com. amazonaws. services. dynamodbv2. datamodeling. DynamoDBMappingException：< YourClassNameHere> ;; No hash key mapping

Solution

Ensure that the getter of the annotated mapping class is declared public

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Java