java.lang.String 类型中没有由 @DynamoDBHashKey 注释的方法或字段

Question

我不知道为什么不运行这个项目。

@Data
@DynamoDBTable(tableName = "tableName")
public class entityName implements Serializable {

    private static final long serialVersionUID = 1L;

    @Id
    @DynamoDBHashKey
    @DynamoDBAutoGeneratedKey
    private String id;

    @DynamoDBRangeKey
    private String rk;

    private String sy;
}

Caused by: java.lang.IllegalArgumentException: No method or field annotated by @DynamoDBHashKey within type java.lang.String!
    at org.socialsignin.spring.data.dynamodb.repository.support.DynamoDBHashAndRangeKeyMethodExtractorImpl.<init>(DynamoDBHashAndRangeKeyMethodExtractorImpl.java:99) ~[spring-data-dynamodb-5.1.0.jar:5.1.0]
    at org.socialsignin.spring.data.dynamodb.repository.support.CompositeIdHashAndRangeKeyExtractor.<init>(CompositeIdHashAndRangeKeyExtractor.java:31) ~[spring-data-dynamodb-5.1.0.jar:5.1.0]
    at org.socialsignin.spring.data.dynamodb.repository.support.DynamoDBHashAndRangeKeyExtractingEntityMetadataImpl.getHashAndRangeKeyExtractor(DynamoDBHashAndRangeKeyExtractingEntityMetadataImpl.java:71) ~[spring-data-dynamodb-5.1.0.jar:5.1.0]
    at org.socialsignin.spring.data.dynamodb.repository.support.DynamoDBIdIsHashAndRangeKeyEntityInformationImpl.<init>(DynamoDBIdIsHashAndRangeKeyEntityInformationImpl.java:49) ~[spring-data-dynamodb-5.1.0.jar:5.1.0]
    at org.socialsignin.spring.data.dynamodb.repository.support.DynamoDBEntityMetadataSupport.getEntityInformation(DynamoDBEntityMetadataSupport.java:125) ~[spring-data-dynamodb-5.1.0.jar:5.1.0]
    at org.socialsignin.spring.data.dynamodb.repository.support.DynamoDBRepositoryFactory.getEntityInformation(DynamoDBRepositoryFactory.java:104) ~[spring-data-dynamodb-5.1.0.jar:5.1.0]
    at org.socialsignin.spring.data.dynamodb.repository.support.DynamoDBRepositoryFactory.getDynamoDBRepository(DynamoDBRepositoryFactory.java:128) ~[spring-data-dynamodb-5.1.0.jar:5.1.0]
    at org.socialsignin.spring.data.dynamodb.repository.support.DynamoDBRepositoryFactory.getTargetRepository(DynamoDBRepositoryFactory.java:150) ~[spring-data-dynamodb-5.1.0.jar:5.1.0]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:305) ~[spring-data-commons-2.1.6.RELEASE.jar:2.1.6.RELEASE]
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.lambda$afterPropertiesSet$5(RepositoryFactoryBeanSupport.java:297) ~[spring-data-commons-2.1.6.RELEASE.jar:2.1.6.RELEASE]
    at org.springframework.data.util.Lazy.getNullable(Lazy.java:211) ~[spring-data-commons-2.1.6.RELEASE.jar:2.1.6.RELEASE]
    at org.springframework.data.util.Lazy.get(Lazy.java:94) ~[spring-data-commons-2.1.6.RELEASE.jar:2.1.6.RELEASE]
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:300) ~[spring-data-commons-2.1.6.RELEASE.jar:2.1.6.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1837) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1774) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
    ... 47 common frames omitted

Answer 1

我认为问题是这样的：

@DynamoDBRangeKey
private String rk;

我注意到你有一个@Id注释，这意味着你可能有一个 Spring Data Repository，看起来像这样：

@Repository
@EnableScan
public interface ServiceItemRepository extends CrudRepository<ServiceItem, String> {
}

该注释向 Spring Data 发出一个信号，表明这是Repository 声明中泛型@Id的主题。String但复合键似乎让事情变得混乱不堪。基本上，如果您删除并且@Id不使用此处的存储库，或者将其替换@DynamoDBRangeKey为普通的@DynamoDBAttribute. 你会发现事情又开始运转了。

顺便说一句：Lombok 与这个问题无关。