如何在SpringDataJPA和eclipselink中的不同模块上分布实体？

Question

我目前正在开发一个具有核心模块和不同“扩展”模块的应用程序。核心模块包括基于Spring配置类的JPA配置以及一些“基本”实体及其存储库，这些实体和存储库将在“扩展”模块中使用。扩展模块包含额外的实体类和JPARepositories。启动扩展模块的JUnit测试时，我遇到以下错误：

No [ManagedType] was found for the key class [a.b.c.data.Config] in 
the Metamodel - please verify that the [Managed] class was referenced
in persistence.xml using a specific <class>a.b.c.data.Config</class>
property or a global <exclude-unlisted-classes>false</exclude-unlisted-classes>
element.

为了做到这一点，我尝试了三种不同的方法：

• 创建了一个名为coreEntityManager和setPackagesToScan的LocalContainerEntityManager的LocalContainerEntityManagerFactoryBean，包括核心和扩展包，其中包含指向核心存储库包的@Entity类和@EnableJpaRepositories，扩展的spring配置包含指向核心存储库包的@EnableJpaRepositories扩展存储库包

使用前两种方法时，会出现前面提到的错误，而使用第三种方法时，会出现未找到配置存储库的错误：

No qualifying bean of type 'a.b.c.ext.repositories.ConfigRepository' available

方法1的代码：

@Configuration
@ComponentScan(basePackages = {"a.b.c.core.services"})
@EnableJpaRepositories(basePackages = {"a.b.c.core.repositories"}, entityManagerFactoryRef = "coreEntityManager")
public class CoreJPAConfig {
...
    @Bean
    public LocalContainerEntityManagerFactoryBean coreEntityManager() {
        LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
        JpaVendorAdapter jpaVendorAdapter = new EclipseLinkJpaVendorAdapter();
        JpaDialect jpaDialect = new EclipseLinkJpaDialect();
        em.setJpaVendorAdapter(jpaVendorAdapter);
        em.setJpaDialect(jpaDialect);
        em.setJpaPropertyMap(getJpaProperties());
        em.setPersistenceUnitName("a.core");
        em.setPackagesToScan("a.b.c.core.data",
                "a.b.c.ext.data");
        em.setDataSource(dataSource());
        return em;
    }
...
}

Configuration
@ComponentScan(basePackages = {
        "a.b.c.config.services"})
@EnableJpaRepositories(basePackages = {"a.b.c.ext.repositories"}, entityManagerFactoryRef = "coreEntityManager")
public class JobSpringConfig {
...
}

方法2的代码：

@Configuration
@ComponentScan(basePackages = {"a.b.c.core.services"})
@EnableJpaRepositories(basePackages = {"a.b.c.core.repositories"}, entityManagerFactoryRef = "coreEntityManager")
public class CoreJPAConfig {
...
    @Bean
    public LocalContainerEntityManagerFactoryBean coreEntityManager() {
        LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
        JpaVendorAdapter jpaVendorAdapter = new EclipseLinkJpaVendorAdapter();
        JpaDialect jpaDialect = new EclipseLinkJpaDialect();
        em.setJpaVendorAdapter(jpaVendorAdapter);
        em.setJpaDialect(jpaDialect);
        em.setJpaPropertyMap(getJpaProperties());
        em.setPersistenceUnitName("a.core");
        em.setPackagesToScan("a.b.c.core.data");
        em.setDataSource(dataSource());
        return em;
    }
...
}

@Configuration
@ComponentScan(basePackages = {"a.b.c.config.services"})
@EnableJpaRepositories(basePackages = {"a.b.c.ext.repositories"}, entityManagerFactoryRef = "jobEntityManager")
public class JobSpringConfig {
...
    @Bean
    public LocalContainerEntityManagerFactoryBean jobEntityManager() {
        LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
        JpaVendorAdapter jpaVendorAdapter = new EclipseLinkJpaVendorAdapter();
        JpaDialect jpaDialect = new EclipseLinkJpaDialect();
        em.setJpaVendorAdapter(jpaVendorAdapter);
        em.setJpaDialect(jpaDialect);
        em.setJpaPropertyMap(getJpaProperties());
        em.setPersistenceUnitName("a.config");
        em.setPackagesToScan("a.b.c.ext.data");
        em.setDataSource(dataSource);
        return em;
    }

方法3的代码：

@Configuration
@ComponentScan(basePackages = {"a.b.c.core.services"})
@EnableJpaRepositories(basePackages = {"a.b.c.core.repositories",
        "a.b.c.ext.repositories"}, entityManagerFactoryRef = "coreEntityManager")
public class CoreJPAConfig {
...
    @Bean
    public LocalContainerEntityManagerFactoryBean coreEntityManager() {
        LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
        JpaVendorAdapter jpaVendorAdapter = new EclipseLinkJpaVendorAdapter();
        JpaDialect jpaDialect = new EclipseLinkJpaDialect();
        em.setJpaVendorAdapter(jpaVendorAdapter);
        em.setJpaDialect(jpaDialect);
        em.setJpaPropertyMap(getJpaProperties());
        em.setPersistenceUnitName("a.core");
        em.setPackagesToScan("a.b.c.core.data",
                "a.b.c.ext.data");
        em.setDataSource(dataSource());
        return em;
    }
...

最后我想实现的是一种“乐高”积木，模块及其配置可以简单地作为依赖项添加，相应的配置实体（及其表）可以添加到持久性单元，而无需进一步调整。

有人能帮我吗？

问候

缺陷

Answer 1

所以很明显，我看不到树林...我错过了一个扩展实体中的@Entity注释...嗯！面部

感谢大家阅读我的问题并试图帮助我！我真丢脸！