可以将 组件和服务配置为产生过滤器，因此我们可以指定目标服务和控制器，并同时排除其他所有内容：
@ComponentScan( basePackageClasses = { MyTargetService.class, MyTargetController.class }, useDefaultFilters = false, includeFilters = { @ComponentScan.Filter(type = ASSIGNABLE_TYPE, value = MyTargetService.class), @ComponentScan.Filter(type = ASSIGNABLE_TYPE, value = MyTargetController.class) })仓库。 这不太可能适用于存储库，但幸运的是，
@EnableJpaRepositories支持相同类型的过滤器：
@EnableJpaRepositories( basePackageClasses = { MyTargetRepository.class }, includeFilters = { @ComponentScan.Filter(type = ASSIGNABLE_TYPE, value = MyTargetRepository.class) } )实体。 这部分比较棘手，因为@EntityScan不支持这些过滤器。尽管这些实体未引用Spring
Bean，但我更喜欢仅加载测试所需的实体。我找不到支持过滤的实体的任何注释，但是我们可以使用中的来
PersistenceUnitPostProcessor以编程方式过滤它们
EntityManagerFactory。这是我的完整解决方案：
//add also the filtered @ComponentScan and @EnableJpaRepositories annotations here @Configuration public class MyConfig { //here we specify the packages of our target entities private static String[] MODEL_PACKAGES = { "com.full.path.to.entity.package1", "com.full.path.to.entity.package2" }; //here we specify our target entities private static Set<String> TARGET_ENTITIES = new HashSet<>(Arrays.asList( "com.full.path.to.entity.package1.MyTargetEntity1", "com.full.path.to.entity.package2.MyTargetEntity2" )); @Bean public DataSource getDataSource() { EmbeddedDatabaseBuilder builder = new EmbeddedDatabaseBuilder(); return builder.setType(EmbeddedDatabaseType.H2).build(); } @Bean public EntityManagerFactory entityManagerFactory() { ReflectionsPersistenceUnitPostProcessor reflectionsPersistenceUnitPostProcessor = new ReflectionsPersistenceUnitPostProcessor(); HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter(); vendorAdapter.setGenerateDdl(true); vendorAdapter.setShowSql(true); LocalContainerEntityManagerFactoryBean factory = new LocalContainerEntityManagerFactoryBean(); factory.setJpaVendorAdapter(vendorAdapter); factory.setPackagesToScan(MODEL_PACKAGES); factory.setDataSource(getDataSource()); factory.setPersistenceUnitPostProcessors(reflectionsPersistenceUnitPostProcessor); factory.afterPropertiesSet(); return factory.getObject(); } @Bean public PlatformTransactionManager transactionManager() { JpaTransactionManager txManager = new JpaTransactionManager(); txManager.setEntityManagerFactory(entityManagerFactory()); return txManager; } public class ReflectionsPersistenceUnitPostProcessor implements PersistenceUnitPostProcessor { @Override public void postProcessPersistenceUnitInfo(MutablePersistenceUnitInfo pui) { Reflections r = new Reflections("", new TypeAnnotationsScanner()); Set<Class<?>> entityClasses = r.getTypesAnnotatedWith(Entity.class, true); Set<Class<?>> mappedSuperClasses = r.getTypesAnnotatedWith(MappedSuperclass.class, true); pui.getManagedClassNames().clear(); //here we remove all entities //here we add only the ones we are targeting for (Class<?> clzz : mappedSuperClasses) { if (TARGET_ENTITIES.contains(clzz.getName())) { pui.addManagedClassName(clzz.getName()); } } for (Class<?> clzz : entityClasses) { if (TARGET_ENTITIES.contains(clzz.getName())) { pui.addManagedClassName(clzz.getName()); } } } }}
