Why iBookService's injection failed in springBoot framwork? thanks

@Service
public interface IBookService {

    public void getDetailInfo(Book book);

    public void getBackBook(Book book);

    public void buyBook(Book book);

}

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@SpringBootApplication(exclude = {
        DataSourceAutoConfiguration.class,
        DataSourceTransactionManagerAutoConfiguration.class,
        HibernateJpaAutoConfiguration.class,
        MongoAutoConfiguration.class})
public class Application {

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public class AOPTest extends BaseTest {
    @Autowired
    IBookService iBookService;

}

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Why iBookService's injection failed in springBoot framwork? thanks.