注释 @ConditionalOnMissingBean 在测试中不匹配

Question

我有一个接口的两个实现 - default 和 dev。我使用@ConditionalOnProperty了默认的实施和组合@Profile，并@ConditionalOnMissingBean为开发实施。

@Service
@ConditionalOnProperty(prefix = "keystore", value = "file")
public class DefaultKeyStoreService implements KeyStoreService {

@Service
@Profile("dev")
@ConditionalOnMissingBean(KeyStoreService.class)
public class DevKeyStoreService implements KeyStoreService {

现在，问题正在测试DevKeyStoreServiceTest中DevKeyStoreService。我有这样的配置：

@SpringBootTest(
    classes = {DevKeyStoreService.class},
    properties = {"keystore.file="}
)
@RunWith(SpringRunner.class)
@ActiveProfiles("dev")
public class DevKeyStoreServiceTest {

    @Autowired
    private DevKeyStoreService tested;

    @Test
    public void testPrivateKey() {
    } //... etc.

结果是：

Negative matches:
-----------------
DevKeyStoreService:
   Did not match:
      - @ConditionalOnMissingBean (types: service.crypto.KeyStoreService; SearchStrategy: all) found bean 'devKeyStoreService' (OnBeanCondition)

和典型的org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'service.crypto.DevKeyStoreServiceTest'...。

如何配置测试类才能运行它？

Answer 1

好的，我想通了。

带值的注释@ConditionalOnMissingBean(KeyStoreService.class)试图只找到具体的实例，而KeyStoreService不是哪个接口。这样，它找不到任何东西。

当我使用带有类型的注释时，它就像一个魅力：@ConditionalOnMissingBean(type = "KeyStoreService")。