没有可用类型 'mypackage.repository' 的符合条件的 bean:预计至少有 1 个符合自动装配候选条件的 bean

No qualifying bean of type 'mypackage.repository' available: expected at least 1 bean which qualifies as autowire candidate

我在 Junit4 中有一个测试 class 需要使用 NutrientListService。

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = ApplicationContext.class)
public class CalculationTests {

    private NutrientListService nutrientService;

    @Test
    public void someTest()
        Result re = Calculator.calculate(response, nutrientService)
}

我得到一个空的 nutrientService,所以我尝试设置一个 ApplicationContext。

@Configuration
@ComponentScan("myservice")
@ComponentScan("myrepository")
public class ApplicationContext {

    @Autowired
    NutrientListService nutrientService;
}

但是,我得到

Error creating bean with name 'nutrientListService': Unsatisfied dependency expressed through field 'nutrientListRepository'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'repositories.NutrientListRepository' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

这是服务:

@Service
@Component
public class NutrientListService {
    @Autowired
    private NutrientListRepository repo;
}

存储库:

@Repository
public interface NutrientListRepository extends MongoRepository<MyClass, String> {

    MyClass findByID(String ID);
}

有任何正确连接服务的想法吗?我需要传递它进行计算,因为它是参数之一。我是否必须使用应用程序上下文 class 或应用程序-context.xml(我找不到)?这样做最不晦涩的方法是什么?我谢谢你。

@Configuration
@ComponentScan("myservice")
@ComponentScan("myrepository")
public class ApplicationContext {
    @Bean
    NutrientListService nutrientService(){
      new NutrientListService()
    }
}

然后用@Autowired

调用Bean
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = ApplicationContext.class)
public class CalculationTests {

    @Autowired
    NutrientListService nutrientService

    @Test
    public void someTest()
        Result re = Calculator.calculate(response, nutrientService)
}