How to create a bean of repository class

Question

I'm doing unit test using spring mvc test framework.

The following is my source code: com.exmple.main

MyController.java

@Controller
public class MyController {

    @Autowired
    private MyService myService;

    @RequestMapping(method = RequestMethod.POST)
    @ResponseBody
    public Map<Object, Object> myControllerFunction(@RequestBody final Object jsonRequest) {
        /* do something */

        return response;
    }
}

MyRepository.java

@Repository
public interface MyRepository extends JpaRepository<My, String> {

    @Query(value="select * from my d where (d.start_date<to_date(:date,'YYYY/DD/MM')) and (d.end_date>to_date(:date,'YYYY/DD/MM'))", nativeQuery=true)
    List<My> findByDate(@Param("date") String date);
}

MyService.java

public interface MyService {
    List<My> findByDate(String date);
}

MyServiceImpl.java

@Service

public class MyServiceImpl implements MyService {
    @Autowired
    MyRepository destRepo;

    @Override
    public List<My> findByDate(String date) {
        List<My> listDest = destRepo.findByDate(date);

        return listDest;
    }
}

com.example.test

MyControllerTest.java

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes={TestConfig.class})
@WebAppConfiguration
public class MyControllerTest {
    private MockMvc mockMvc;

    @Autowired
    MyService myService;

    @Autowired
    protected WebApplicationContext webApplicationContext;

    @Before
    public void setup() throws Exception {
        // this.mockMvc = MockMvcBuilders.standaloneSetup(controller).build();
        mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).build();
    }

    @Test
    public void listAllMy() throws Exception {

    }
}

TestConfig.java

@Configuration
public class TestConfig {
    @Bean
    public MyService myService() {
        // set properties, etc.
        return new MyServiceImpl();
    }
}

When I run test, the following error is displayed nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException

I know the exception occurred because MyService didn't find any bean of MyRepository. But I don't know how to create a bean of repository. Please teach me how to create a bean of repository class using Java (not xml).

Answer 1

You need to enable the JPA repositories in your config class, specify the package that contains the repositories as below

@Configuration
@EnableJpaRepositories(basePackages = {
    "com.example.repository"
})
public class TestConfig {
    @Bean
    public MyService myService() {
        // set properties, etc.
        return new DestinationServiceImpl();
    }
}

Edit: looks like you haven't defined entityManager, and dataSource. Refer to a tutorial here and also answer to similar question here