Spring Boot 无法扫描多个模块的注释

Question

我使用 Spring Boot 并通过多个模块进行设计。下面是我的项目结构：模块商店核心：包名称：com.baotrung.core.business 我设计了一些子包：模型，存储库，服务行长：<modelVersion>4.0.0</modelVersion>    <artifactId>shop-core</artifactId>    <packaging>jar</packaging>    <dependencies>        <!-- shop-core-model !-->        <dependency>            <groupId>com.baotrung</groupId>            <artifactId>shop-core-model</artifactId>            <version>0.0.1-SNAPSHOT</version>        </dependency>        <dependency>            <groupId>org.apache.commons</groupId>            <artifactId>commons-lang3</artifactId>            <version>3.9</version>        </dependency>        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-data-jpa</artifactId>        </dependency>    </dependencies>类别服务 public interface CategoryService {    List<Object> countProductsByCategories(MerchantStore store, List<Long> categoryIds);    List<Category> listByStoreAndParent(MerchantStore store, Category category);    PersistableCategory saveCategories(MerchantStore store, PersistableCategory persistableCategory);    Category findById(Long id);    List<ReadableCategory> findCategories(MerchantStore store, int dept, Language language,List<String> filters);}类别 服务实施@Servicepublic class CategoryServiceImpl implements CategoryService {    @Autowired    private CategoriesRepository categoryRepository;    @Autowired    private LanguageRepository languageRepository;    @Autowired    private Mapper<Category,ReadableCategory> categoryReadableCategoryMapper;    //some method@存储库public interface CategoriesRepository extends CrudRepository<Category, Long>, CategoryRepositoryCustom { }public interface CategoryRepositoryCustom {    List<Object> countProductsByCategories(MerchantStore store, List<Long> categoryIds);    List<Category> listByStoreAndParent(MerchantStore store, Category category);    }@Repositorypublic class CategoryRepositoryCustomImpl implements CategoryRepositoryCustom {// some method impl}

Answer 1

我使用 Spring Boot 并通过多个模块进行设计。下面是我的项目结构：

模块商店核心：包名称：com.baotrung.core.business 我设计了一些子包：模型，存储库，服务

行长：

<modelVersion>4.0.0</modelVersion>

    <artifactId>shop-core</artifactId>

    <packaging>jar</packaging>

    <dependencies>

        <!-- shop-core-model !-->

        <dependency>

            <groupId>com.baotrung</groupId>

            <artifactId>shop-core-model</artifactId>

            <version>0.0.1-SNAPSHOT</version>

        </dependency>

        <dependency>

            <groupId>org.apache.commons</groupId>

            <artifactId>commons-lang3</artifactId>

            <version>3.9</version>

        </dependency>

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-data-jpa</artifactId>

        </dependency>

    </dependencies>

类别服务

 public interface CategoryService {

    List<Object> countProductsByCategories(MerchantStore store, List<Long> categoryIds);

    List<Category> listByStoreAndParent(MerchantStore store, Category category);

    PersistableCategory saveCategories(MerchantStore store, PersistableCategory persistableCategory);

    Category findById(Long id);

    List<ReadableCategory> findCategories(MerchantStore store, int dept, Language language,List<String> filters);

}

类别 服务实施

@Service

public class CategoryServiceImpl implements CategoryService {

    @Autowired

    private CategoriesRepository categoryRepository;

    @Autowired

    private LanguageRepository languageRepository;

    @Autowired

    private Mapper<Category,ReadableCategory> categoryReadableCategoryMapper;

    //some method

@存储库

public interface CategoriesRepository extends CrudRepository<Category, Long>, CategoryRepositoryCustom {

 }

public interface CategoryRepositoryCustom {

    List<Object> countProductsByCategories(MerchantStore store, List<Long> categoryIds);

    List<Category> listByStoreAndParent(MerchantStore store, Category category);

    }

@Repository

public class CategoryRepositoryCustomImpl implements CategoryRepositoryCustom {

// some method impl

}

我还创建了模块shopping-app p 并在其中使用了商店代码依赖项。看起来像 ：

Answer 2

我建议您清理/重组您的包层次结构以使其正常工作。

如果您将Application 类放在应用程序的根包中，例如com.baotrung.shop，组件扫描将从该包向下开始。所有其他组件应驻留在此包或子包中，事情会变得更容易，并且您需要更少的样板代码。将 Application 类放入其他组件的并行包（及以下）中（就像您所做的那样）将强制您设置组件扫描的路径，以查找这些（以及未来的）未按预期工作的组件。