Question

我正在尝试使用Spring-jpa-data中的Crud Repository：

我的数据访问bean配置如下：

@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;
    }

}

所以，正如你所看到的，我有两个数据源，两个EntityManagerFactories，两个TransactionManagers和其他...

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

问题是：两个如何使用多个DataSources（entityManagerFactory）和Spring-jpa-data？

我读了一个将分配配置描述为解决方案的示例，但我想使用一个Spring Config。可能吗？谢谢。

Answer 1

从春季开机 - #5401

经过仔细考虑后，我们决定不执行此操作。您的注释提议是配置键前缀，bean前缀和其他与bean相关的设置的混合。虽然它在纸面上听起来很吸引人，但它很难实现，甚至可能更难以使其与用户的自定义保持一致。

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

Spring-jpa-data：多个DataSource和一个Spring配置

1 个答案: