Spring Boot 应用程序中的存储库无法识别 @Autowired 注释

Question

我创建了一个小型 Spring Boot 项目，它将进行 DB 交互，我正在使用 @Controller、@Service 和 @Repository。

spring boot主类在父包com.bisnu.main下，那么controller、service和repository都在com.bisnu.main.service....这样的父包下。

一切都很好，但是当@Autowired 用于存储库时，它无法为存储库创建 bean，它给出了错误。

@EnableSwagger2
@RestController
@CrossOrigin(origins="*",allowedHeaders="*")
@RequestMapping("/TestController")
public class TestController {

    @Autowired
    private SourceService sourceService;

    @GetMapping("/getSourcelist")
    public List<SourceListDTO> getAllTelevisionSource(){
        List<SourceListDTO> televisionSource = null;

        televisionSource = sourceService.getTelevisionSource();
        return televisionSource;
    }

}

@Service
public class SourceService {

    @Autowired
    private TestRepository testRepo;

    public List<SourceListDTO> getTelevisionSource() {
        Pageable pageable = PageRequest.of(0, 100);
        List<SourceListDTO> list = testRepo.findSourceList(pageable);
        return list;
    } 
}

public interface TestRepository extends JpaRepository<MyTelevisionSource,Long> {
    @Query("select query")
    List<SourceListDTO> findSourceList(Pageable pageable);
}

我遇到了错误，

Field testRepo in com.tivo.extract.core.service.SourceService required a bean of type 'com.tivo.extract.core.repository.TestRepository' that could not be found.

The injection point has the following annotations:
    - @org.springframework.beans.factory.annotation.Autowired(required=true)


Action:

Consider defining a bean of type 'com.tivo.extract.core.repository.TestRepository' in your configuration.

谁能指导一下，这里出了什么问题。

谢谢

Answer 1

在类中添加@Repository注解

@Repository
public interface TestRepository extends JpaRepository<MyTelevisionSource,Long> {
   ...

并将以下注释添加到主类（标记为@SpringBootApplication）或任何@Configuration-标记的类

@SpringBootApplication
@EnableJpaRepositories(basePackages = {"com.example.repositories"})
@EntityScan("com.example.entities")
public class BootApplication {
    ...