具有数据和Couchbase的Spring WebMVC-尝试作为服务注入时创建bean时出错

Question

我刚刚开始使用Spring。我遵循了一些教程来创建一个有效的Spring Web MVC项目。这是一个简单的项目，使用百里香叶将一些信息显示为网站。

现在，我想添加一个用于存储数据的couchbase数据库，我已经使用过基于ouchbase的简单.Net Apps。因此，我遵循了官方Couchbase博客上的教程，以创建用于连接Couchbase的服务。 Couchbase with Spring-Boot and Spring Data

但是当我尝试自动连接服务时，出现以下错误消息：

[main] INFO org.springframework.web.servlet.DispatcherServlet - Initializing Servlet 'dispatcher'
[main] INFO org.springframework.data.repository.config.RepositoryConfigurationDelegate - Multiple Spring Data modules found, entering strict repository configuration mode!
[main] INFO org.springframework.data.repository.config.RepositoryConfigurationDelegate - Bootstrapping Spring Data repositories in DEFAULT mode.
[main] INFO org.springframework.data.repository.config.RepositoryConfigurationDelegate - Finished Spring Data repository scanning in 70ms. Found 1 repository interfaces.
[main] WARN org.springframework.web.context.support.AnnotationConfigWebApplicationContext - Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'indexController': Unsatisfied dependency expressed through field 'buildingService'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.xplorg.model.BuildingService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
[main] ERROR org.springframework.web.servlet.DispatcherServlet - Context initialization failed
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'indexController': Unsatisfied dependency expressed through field 'buildingService'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.xplorg.model.BuildingService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

据我了解的消息，找到了Spring存储库，但它不符合自动装配的要求。

我的WebConfig：

@Configuration
@EnableWebMvc
@ComponentScan("com.project.controller")
@ComponentScan("com.xplorg.model")
@EnableCouchbaseRepositories(basePackages = {"com.project.model"})
public class MvcWebConfig implements WebMvcConfigurer {
    // Code for generating templateEngine/Resolver ...
}

我的控制器（在这里我尝试自动连接服务，不确定它是否在正确的位置，会导致异常）：

@Controller
public class IndexController {
    private int count = 0;

    @Autowired
    private BuildingService buildingService;
    // This line causes the exception

    @GetMapping("/")
    public String index(Model model) {
        model.addAttribute("message", "Welcome to Hello World");
        return "index";
    }

    // Some more mapping no use of service
}

我的BuildingService：

public interface BuildingService {

    Building save(Building building);

    Building findById(String buildingId);

    List<Building> findByCompanyId(String companyId);

    Building findByCompanyAndAreaId(String companyId, String areaId);

    List<Building> findByCompanyIdAndNameLike(String companyId, String name, int page);

    List<Building> findByPhoneNumber(String telephoneNumber);

    Long countBuildings(String companyId);

}

我的BuildingServiceImpl：

@Service("BuildingService")
public class BuildingServiceImpl implements BuildingService {

    @Autowired
    private BuildingRepository buildingRepository;

    @Override
    public List<Building> findByCompanyId(String companyId) {
        return buildingRepository.findByCompanyId(companyId);
    }

    public List<Building> findByCompanyIdAndNameLike(String companyId, String name, int page) {
        return buildingRepository.findByCompanyIdAndNameLikeOrderByName(companyId, name, new PageRequest(page, 20))
                .getContent();
    }

    @Override
    public Building findByCompanyAndAreaId(String companyId, String areaId) {
        return buildingRepository.findByCompanyAndAreaId(companyId, areaId);
    }

    @Override
    public List<Building> findByPhoneNumber(String telephoneNumber) {
        return buildingRepository.findByPhoneNumber(telephoneNumber);
    }

    @Override
    public Building findById(String buildingId) {
        return buildingRepository.findById(buildingId).get();
    }

    @Override
    public Building save(Building building) {
        return buildingRepository.save(building);
    }

    @Override
    public Long countBuildings(String companyId) {
        return buildingRepository.countBuildings(companyId);
    }
}

订单类很容易从教程中复制。

项目结构：

src/main/java
    com.project
        config
            MvcWebApplicationInitializer
            MvcWebConfig
        controller
            IndexController
        model
            Area
            Building
            BuildingRepository
            BuildingService
            BuildingServiceImpl

编辑

在错误消息的末尾，以下行保持不变，这是否意味着我缺少依赖项？

Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'couchbaseRepositoryOperationsMapping' available
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:769)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:1221)

编辑2

尝试了不同的方法并详细了解了Spring / Couchbase和Autowired之后，我得到了No bean named 'couchbaseRepositoryOperationsMapping' available的例外。整个异常如下所示：

[main] INFO org.springframework.web.servlet.DispatcherServlet - Initializing Servlet 'dispatcher'
[main] INFO org.springframework.data.repository.config.RepositoryConfigurationDelegate - Bootstrapping Spring Data repositories in DEFAULT mode.
[main] INFO org.springframework.data.repository.config.RepositoryConfigurationDelegate - Finished Spring Data repository scanning in 63ms. Found 1 repository interfaces.
[main] WARN org.springframework.web.context.support.AnnotationConfigWebApplicationContext - Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'buildingServiceImpl': Unsatisfied dependency expressed through field 'buildingRepository'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'buildingRepository': 'buildingRepository' depends on missing bean 'couchbaseRepositoryOperationsMapping'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'couchbaseRepositoryOperationsMapping' available
[main] ERROR org.springframework.web.servlet.DispatcherServlet - Context initialization failed
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'buildingServiceImpl': Unsatisfied dependency expressed through field 'buildingRepository'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'buildingRepository': 'buildingRepository' depends on missing bean 'couchbaseRepositoryOperationsMapping'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'couchbaseRepositoryOperationsMapping' available
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:596)