java - Spring-jpa-数据 : more than one DataSource and one single Spring config

Question

我正在尝试使用 Spring-jpa-data 中的 Crud 存储库:

我的数据访问 bean 的配置如下所示:

@Configuration
@EnableTransactionManagement
@ComponentScan (basePackages = {"com.comp.olme"})
@PropertySource("classpath:OlmeSmb-${env}.properties")
@EnableJpaRepositories(basePackages="com.comp.olme", entityManagerFactoryRef ="emGapSort", transactionManagerRef = "txManagerGapSort")
@EnableScheduling
public class OlmeSmbConfig {

   @Bean
    public BasicDataSource olmeDataSource() {
        BasicDataSource olmeDataSource = new BasicDataSource();
        ...
        return olmeDataSource;
    }



    @Bean
    public BasicDataSource gapSortDataSource() {
        BasicDataSource gapSortDataSource = new BasicDataSource();
      ...
        return gapSortDataSource;
    }



    @Bean
    public LocalContainerEntityManagerFactoryBean emFactoryOLME(@Qualifier("olmeDataSource") BasicDataSource olmeDataSource) {
        LocalContainerEntityManagerFactoryBean localConnectionFactoryBean = new LocalContainerEntityManagerFactoryBean();
      ...
        return localConnectionFactoryBean;
    }



    @Bean
    public LocalContainerEntityManagerFactoryBean emFactoryGapSort(@Qualifier("gapSortDataSource") BasicDataSource gapSortDataSource) {
        LocalContainerEntityManagerFactoryBean localConnectionFactoryBeanGapSort = new LocalContainerEntityManagerFactoryBean();
     ...
        return localConnectionFactoryBeanGapSort;
    }


    @Bean
    public EntityManager emOLME(@Qualifier("emFactoryOLME") EntityManagerFactory entityManagerFactory) {
        return entityManagerFactory.createEntityManager();
    }

    @Bean
    public EntityManager emGapSort(@Qualifier("emFactoryGapSort") EntityManagerFactory entityManagerFactory) {
        return entityManagerFactory.createEntityManager();
    }



    @Bean
    public JpaTransactionManager txManagerOLME(@Qualifier("emFactoryOLME") EntityManagerFactory entityManagerFactoryOLME) {
        JpaTransactionManager txManagerOLME = new JpaTransactionManager();
        ...
        return txManagerOLME;
    }


    @Bean
    public JpaTransactionManager txManagerGapSort(@Qualifier("emFactoryGapSort") EntityManagerFactory entityManagerFactoryGapSort) {
        JpaTransactionManager txManagerGapSort = new JpaTransactionManager();
      ....
        return txManagerGapSort;
    }

}

因此，如您所见，我有两个数据源、两个 EntityManagerFactories、两个 TransactionManager 等等......

但我只将一个 EntityManagerFactory 传递到 @EnableJpaRepositories 注释 (entityManagerFactoryRef ="emGapSort")。

问题是:两个人如何将多个数据源(entityManagerFactory)与 Spring-jpa-data 一起使用？

我读过一个示例，其中将拆分配置描述为一种解决方案，但我想使用一个 Spring 配置。有可能吗？谢谢。

Answer 1

来自 Spring Boot - #5401

After a careful consideration we've decided not to implement this. That annotation proposal of yours is a mix of configuration key prefix, bean prefix and other bean-related settings. While it sounds appealing on paper, it would be quite hard to implement and probably even harder to keep it consistent with user's customizations.

因此，您可以尝试将其放在两个 @Configuration 类上(每个 @Configuration 一个 @EnableJpaRepositories)。