Repositories.getRepositoryFor() 在 SpringBootTest 中返回 null

Question

我的目标是测试注释处理器。为此，我决定在测试包中创建一些带有注释的测试数据。我的注释处理器使用 Spring Repositories，但它们每次都返回 null，即使存储库存在。在调试中，我注意到我的存储库在 applicationContext 中不存在。 如何强制 Spring 查看我的存储库？

我的测试：

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = {AnnotationConfigWebApplicationContext.class, 
RepoConfig.class, AnnotationProcessor.class}, loader = AnnotationConfigContextLoader.class)
public class AnnotationProcessorTest{

@Autowired
private AnnotationProcessor processor;

@Test
public void test(){
    assertNotNull(processor.getRepositories()); //Repositories is empty
}
}

存储库：

@Repository
public interface MyRepository extends PagingAndSortingRepository<MyClass, 
Serializable> {
}

我的班级：

@Entity
public class MyClass implements Serializable{

    @Id
    private String ref;

    private String field;
}

回购配置：

@Configuration
@EnableJpaRepositories(basePackageClasses = {MyRepository.class})
public class RepoConfig{
}

注解处理器：

@Component
public class AnnotationProcessor{

    @Autowired
    private WebApplicationContext appContext;

    private Repositories repositories;


    @PostConstruct
    public void init() {
       repositories = new Repositories(appContext);

       ClassPathScanningCandidateComponentProvider scanner = new ClassPathScanningCandidateComponentProvider(false);
       scanner.addIncludeFilter(new AnnotationTypeFilter(Repository.class, false, false));
    scanner.findCandidateComponents("com").forEach(this::processRepository);
    }

    private void processRepository(BeanDefinition bean) {
        Class<?> repoClass = Class.forName(bean.getBeanClassName());
        Repository annotation = repoClass.getAnnotation(Repository.class);
        //TODO: processing annotation
    }

    public Repositories getRepositories(){
         return repositories;
    }
}

Answer 1

这是填充Repositories 对象的类的工作版本。

@Component
public class RepositoryConfigurer {
    private Repositories repositories;

    @Autowired
    public RepositoryConfigurer(ApplicationContext applicationContext) {
        this.repositories = new Repositories(applicationContext);
    }

    public Repositories getRepositories() {
        return this.repositories;
    }
}

单元测试

@RunWith(SpringRunner.class)
@SpringBootTest(classes = Application.class)
public class ApplicationTests {

    @Autowired
    ApplicationContext appContext;

    @Autowired
    RepositoryConfigurer repositoryConfigurer;

    @Test
    public void testRepositoriesConfigurer() {
        assertThat(repositoryConfigurer).isNotNull();

        Repositories repositories = repositoryConfigurer.getRepositories();
        assertThat(repositories).isNotNull();

        repositories.forEach(repository -> {
            System.out.println(repository.getName());
        });
    }
}

包括项目供参考。 spring-boot-tests