PersistenceUnitPostProcessor实现在junit测试期间不工作

Question

我已经实现了一个PersistenceUnitPostProcessor，用于扫描不同包中的实体，而不在persistence.xml中列出它们。

遗憾的是，它只在部署期间工作，而不是在运行junit测试时工作。

处理器在上下文应用程序xml中声明如下：

<bean id="entityManagerFactoryMdm"
    class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
    <property name="persistenceUnitPostProcessors">
        <list>
            <bean class="com.mypackage.MyPersistenceUnitPostProcessor" />
        </list>
    </property>
</bean>

程序包按如下方式列出：

<util:properties id="entitiesScanProperties">
    <prop key="packagesToScan">package1.entities,package2.entities.view,package3.entities</prop>
</util:properties>

逻辑是：

public class MyPersistenceUnitPostProcessor implements PersistenceUnitPostProcessor {

    @Autowired
    private ResourcePatternResolver resourceLoader;

    @Value("#{entitiesScanProperties['packagesToScan']}")
    private String[] packagesToScan;

    @Override
    public void postProcessPersistenceUnitInfo(final MutablePersistenceUnitInfo mutablePersistenceUnitInfo) {
        try {
            List<Resource> resourcesList = new ArrayList<Resource>();
            for (String packageToScan : packagesToScan) {
                packageToScan = packageToScan.replace(".", "/");
                final Resource[] packageResources = resourceLoader.getResources(String.format("classpath:%s/*.class", packageToScan));
                resourcesList.addAll(Arrays.asList(packageResources));
            }
            final Resource[] resources = new Resource[resourcesList.size()];
            resourcesList.toArray(resources);

            for (Resource resource : resources) {
                final CachingMetadataReaderFactory cachingMetadataReaderFactory = new CachingMetadataReaderFactory();
                final MetadataReader metadataReader = cachingMetadataReaderFactory.getMetadataReader(resource);
                if (metadataReader.getAnnotationMetadata().isAnnotated(javax.persistence.Entity.class.getName())) {
                    mutablePersistenceUnitInfo.addManagedClassName(metadataReader.getClassMetadata().getClassName());
                }
            }
            mutablePersistenceUnitInfo.setExcludeUnlistedClasses(true);
        }
        catch (IOException e) {
            throw new RuntimeException(e);
        }
      }
    }

测试定义：

@ContextConfiguration(locations = { "classpath:application-context-test.xml" })
@DatabaseDataAsResource(locations = { "/META-INF/testdata/dbunit/master-dataset.xml", "/META-INF/testdata/dbunit/complaints-dataset.xml" })
public class FuelComplaintServiceImplIntegrationTest extends TestBase {
}

超类：

@RunWith(SpringJUnit4ClassRunner.class)
@TestExecutionListeners({ DependencyInjectionTestExecutionListener.class, DirtiesContextTestExecutionListener.class,
    TransactionalTestExecutionListener.class, TestExecutionLifecycleListener.class })
@TransactionConfiguration(transactionManager = "transactionManager", defaultRollback = true)
@Transactional
public abstract class TestBase {

}

我得到了这个异常：

Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private     com.company.repository.DataProviderRepository com.company.service.impl.ProviderConfigurationServiceImpl.dataProviderRepository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataProviderRepository': FactoryBean threw exception on object creation; nested exception is java.lang.IllegalArgumentException: Not an managed type: class package1.entities.DataProviderEntity
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:514)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:285)
... 43 more

处理器在耗尽期间工作，但在单元测试期间不工作，这可能是什么问题？我在监督什么吗？

任何提示都非常受欢迎。

Answer 1

对于那些可能遇到这样的问题的人。

错误的原因是这个表达式：

"classpath:%s/*.class"

将其更改为：

"classpath*:%s/*.class"

已解决错误。

问题是，第一个表达式将只查找找到的第一个路径。一些需要的类将不在那里，比如本例中导致此类错误消息的实体。

第二个表达式将告诉ResourcePatternResolver查找与路径模式匹配的所有类目录，例如

../classes/package1/Entity.class

../test-classes/package1/ServiceTest.class

在我的例子中，它以前只是为了：

../test-classes/package1/ServiceTest.class

希望这对某些人有帮助。