spring-boot - 您如何在 Spring Boot 应用程序中的同一个域类上同时使用 Spring Data JPA 和 Spring Data Elasticsearch 存储库？

Question

我试图在同一个域对象上同时使用 Spring Data JPA 和 Spring Data Elasticsearch，但它不起作用。

当我尝试运行一个简单的测试时，出现以下异常:

org.springframework.data.mapping.PropertyReferenceException: No property index found for type Person! at org.springframework.data.mapping.PropertyPath.(PropertyPath.java:75) ~[spring-data-commons-1.11.0.RELEASE.jar:na] at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:327) ~[spring-data-commons-1.11.0.RELEASE.jar:na] at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:307) ~[spring-data-commons-1.11.0.RELEASE.jar:na] at org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:270) ~[spring-data-commons-1.11.0.RELEASE.jar:na] at org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:241) ~[spring-data-commons-1.11.0.RELEASE.jar:na] at org.springframework.data.repository.query.parser.Part.(Part.java:76) ~[spring-data-commons-1.11.0.RELEASE.jar:na] at org.springframework.data.repository.query.parser.PartTree$OrPart.(PartTree.java:235) ~[spring-data-commons-1.11.0.RELEASE.jar:na] at org.springframework.data.repository.query.parser.PartTree$Predicate.buildTree(PartTree.java:373) ~[spring-data-commons-1.11.0.RELEASE.jar:na] at org.springframework.data.repository.query.parser.PartTree$Predicate.(PartTree.java:353) ~[spring-data-commons-1.11.0.RELEASE.jar:na] at org.springframework.data.repository.query.parser.PartTree.(PartTree.java:84) ~[spring-data-commons-1.11.0.RELEASE.jar:na] at org.springframework.data.jpa.repository.query.PartTreeJpaQuery.(PartTreeJpaQuery.java:61) ~[spring-data-jpa-1.9.0.RELEASE.jar:na] at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$CreateQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:95) ~[spring-data-jpa-1.9.0.RELEASE.jar:na] at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$CreateIfNotFoundQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:206) ~[spring-data-jpa-1.9.0.RELEASE.jar:na] at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$AbstractQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:73) ~[spring-data-jpa-1.9.0.RELEASE.jar:na] at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.(RepositoryFactorySupport.java:408) ~[spring-data-commons-1.11.0.RELEASE.jar:na] at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:206) ~[spring-data-commons-1.11.0.RELEASE.jar:na] at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.initAndReturn(RepositoryFactoryBeanSupport.java:251) ~[spring-data-commons-1.11.0.RELEASE.jar:na] at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:237) ~[spring-data-commons-1.11.0.RELEASE.jar:na] at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:92) ~[spring-data-jpa-1.9.0.RELEASE.jar:na] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1637) ~[spring-beans-4.2.1.RELEASE.jar:4.2.1.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1574) ~[spring-beans-4.2.1.RELEASE.jar:4.2.1.RELEASE] ... 43 common frames omitted

它们在禁用任何一个时起作用。

该项目基于 Spring Boot 1.3.0.M5。

这是一个重现这种情况的示例项目:

https://github.com/izeye/spring-boot-throwaway-branches/tree/data-jpa-and-elasticsearch

Answer 1

Spring Data 中的存储库与数据源无关，这意味着 JpaRepository和 ElasticsearchRepository两者都汇总为 Repository界面。在这种情况下，Spring Boot 的自动配置将导致 Spring Data JPA 尝试为项目中继承任何 Spring Data Commons 基础存储库的每个存储库配置一个 bean。

要解决此问题，您需要将 JPA 存储库和 Elasticsearch 存储库移动到单独的包中，并确保注释您的 @SpringBootApplication应用程序类:

@EnableJpaRepositories

@EnableElasticsearchRepositories

然后，您需要为每个启用注释指定存储库的位置。这最终看起来像:

@SpringBootApplication
@EnableJpaRepositories("com.izeye.throwaway.data")
@EnableElasticsearchRepositories("com.izeye.throwaway.indexing")
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }

}

然后您的应用程序将能够消除哪些存储库用于哪个 Spring Data 项目。