The mockbean annotation in the Java – spring boot test results in a nonuniquebeandefinitionexception

I have a problem using @ mockbean annotation The document says that mockbean can replace beans in the context, but I get nonuniquebeandefinitionexception in the unit test I can't see how to use annotations If I can simulate repo, there will obviously be multiple bean definitions

Let me take the example here: https://spring.io/blog/2016/04/15/testing-improvements-in-spring-boot-1-4

I have a Mongo Repository:

public interface MyMongoRepository extends MongoRepository<MyDTO,String>
{
   MyDTO findById(String id);
}

Jersey resources:

@Component
@Path("/createMatch")
public class Create
{
    @Context
    UriInfo uriInfo;

    @Autowired
    private MyMongoRepository repository;

    @POST
    @Produces(MediaType.APPLICATION_JSON)
    public Response createMatch(@Context HttpServletResponse response)
    {
        MyDTO match = new MyDTO();
        match = repository.save(match);
        URI matchUri = uriInfo.getBaseUriBuilder().path(String.format("/%s/details",match.getId())).build();

        return Response.created(matchUri)
                .entity(new MyResponseEntity(Response.Status.CREATED,match,"Match created: " + matchUri))
                .build();
    }
}

There is also a JUnit test:

@RunWith(SpringRunner.class)
@SpringBootTest
public class TestMocks {

    @Autowired
    private TestRestTemplate restTemplate;

    @MockBean
    private MyMongoRepository mockRepo;

    @Before
    public void setup()
    {
        MockitoAnnotations.initMocks(this);

        given(this.mockRepo.findById("1234")).willReturn(
                new MyDTO());
    }

    @Test
    public void test()
    {
        this.restTemplate.getForEntity("/1234/details",MyResponseEntity.class);

    }

}

Error message:

Field repository in path.to.my.resources.Create required a single bean,but 2 were found:
    - myMongoRepository: defined in null
    - path.to.my.MyMongoRepository#0: defined by method 'createMock' in null

Solution

This is an error: https://github.com/spring-projects/spring-boot/issues/6541

The fix is in spring Data 1.0 2-snapshot and 2.0 3-SNAPSHOT： https://github.com/arangodb/spring-data/issues/14#issuecomment -3741173

If you do not use these versions, you can resolve it by declaring the impersonation Name:

@MockBean(name="myMongoRepository")
private MyMongoRepository repository;

Respond to your comments

From spring's doc:

After reading this article, I think you need to declare @ springboottest using the web environment:

@SpringBootTest(webEnvironment=WebEnvironment.RANDOM_PORT)

If your spring boot does not start the web environment, what are the requirements of testresttemplate So I guess spring doesn't even offer it