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java - 带有 Couchbase 服务的 Spring WebMVC - 没有名为“couchbaseRepositoryOperationsMapping”的 bean 可用

问题描述

我正在使用 thymeleaf 创建一个简单的 Spring WebMVC 应用程序，现在我想添加一个提供与服务器连接的couchbase服务。

我尝试根据以下教程Couchbase with Spring-Boot and Spring Data创建 couchbase 服务

我有以下项目结构：

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

当尝试自动装配服务时，我得到一个异常，即没有命名的 beancouchbaseRepositoryOperationsMapping发生，因为我的存储库类扩展CouchbasePagingAndSortingRepository了抛出异常。

我得到以下异常：

[main] INFO org.springframework.web.servlet.DispatcherServlet - 初始化 Servlet 'dispatcher' [main] INFO org.springframework.data.repository.config.RepositoryConfigurationDelegate - 找到多个 Spring Data 模块，进入严格的存储库配置模式！[main] INFO org.springframework.data.repository.config.RepositoryConfigurationDelegate - 在默认模式下引导 Spring Data 存储库。[main] INFO org.springframework.data.repository.config.RepositoryConfigurationDelegate - 在 64 毫秒内完成 Spring 数据存储库扫描。找到 1 个存储库接口。[main] WARN org.springframework.web.context.support.AnnotationConfigWebApplicationContext - 上下文初始化期间遇到异常 - 取消刷新尝试：org.springframework.beans.factory.UnsatisfiedDependencyException：创建名为“buildingServiceImpl”的 bean 时出错：通过字段“buildingRepository”表示的依赖关系不满足；嵌套异常是 org.springframework.beans.factory.BeanCreationException：创建名为 'buildingRepository' 的 bean 时出错：'buildingRepository' 取决于缺少的 bean 'couchbaseRepositoryOperationsMapping'；嵌套异常是 org.springframework.beans.factory.NoSuchBeanDefinitionException：没有名为 'couchbaseRepositoryOperationsMapping' 的 bean 可用 [main] 错误 org.springframework.web.servlet.DispatcherServlet - 上下文初始化失败 org.springframework.beans.factory.UnsatisfiedDependencyException：创建 bean 时出错名称为“buildingServiceImpl”：通过字段“buildingRepository”表示不满足的依赖关系；嵌套异常是 org.springframework.beans.factory.BeanCreationException：创建名为 'buildingRepository' 的 bean 时出错：'buildingRepository' 取决于缺少的 bean 'couchbaseRepositoryOperationsMapping'；嵌套异常是 org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'couchbaseRepositoryOperationsMapping' 可用

据我了解，它不起作用，因为没有名为couchbaseRepositoryOperationsMapping.

我的 MvcWebConfig：

@Configuration
@EnableWebMvc
@ComponentScan("com.xplorg.controller")
@EnableCouchbaseRepositories(basePackages = {"com.xplorg.model"})
public class MvcWebConfig implements WebMvcConfigurer {

    @Autowired
    private ApplicationContext applicationContext;

    @Bean
    public SpringResourceTemplateResolver templateResolver() {
        SpringResourceTemplateResolver templateResolver = new SpringResourceTemplateResolver();
        templateResolver.setPrefix("/WEB-INF/views/");
        templateResolver.setSuffix(".html");
        return templateResolver;
    }

    @Bean
    public SpringTemplateEngine templateEngine() {
        SpringTemplateEngine templateEngine = new SpringTemplateEngine();
        templateEngine.setTemplateResolver(templateResolver());
        templateEngine.setEnableSpringELCompiler(true);
        return templateEngine;
    }

    public void configureViewResolvers(ViewResolverRegistry registry) {
        ThymeleafViewResolver viewResolver = new ThymeleafViewResolver();
        viewResolver.setTemplateEngine(templateEngine());
        registry.viewResolver(viewResolver);
    }

    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/webjars/**").addResourceLocations("classpath:/META-INF/resources/webjars/");
        registry.addResourceHandler("/resources/**").addResourceLocations("/resources/");
    }

}

我的 pom.xml：

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.project</groupId>
  <artifactId>xplorg</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>
  <name>Project</name>
  <properties>
    <failOnMissingWebXml>false</failOnMissingWebXml>
    <maven.compiler.target>1.8</maven.compiler.target>
    <maven.compiler.source>1.8</maven.compiler.source>
  </properties>
  <dependencies>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>5.1.7.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.thymeleaf</groupId>
        <artifactId>thymeleaf-spring5</artifactId>
        <version>3.0.11.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>4.0.1</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>org.webjars</groupId>
        <artifactId>bootstrap</artifactId>
        <version>3.3.7-1</version>
    </dependency>
    <dependency>
        <groupId>org.webjars</groupId>
        <artifactId>jquery</artifactId>
        <version>3.1.1</version>
    </dependency>
    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-simple</artifactId>
        <version>1.7.5</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-couchbase</artifactId>
        <version>3.1.8.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <version>1.18.8</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>javax.persistence</groupId>
        <artifactId>persistence-api</artifactId>
        <version>1.0.2</version>
    </dependency>
  </dependencies>
  <build>
    <plugins>
        <plugin>
            <groupId>org.eclipse.jetty</groupId>
            <artifactId>jetty-maven-plugin</artifactId>
            <version>9.4.18.v20190429</version>
        </plugin>
    </plugins>
  </build>
</project>

****更新****

添加 CouchbaseConfig 类解决了问题，couchbaseRepositoryOperationsMapping但我现在得到另一个错误，即现在名为 bean buildingRepository。所有类都基于教程Couchbase with Spring-Boot 和 Spring Data。我是否错过了注释，因此 spring 无法自动装配类？

我的存储库类：

@N1qlPrimaryIndexed
@ViewIndexed(designDoc = "building")
public interface BuildingRepository extends CouchbasePagingAndSortingRepository<Building, String> {

    List<Building> findByCompanyId(String companyId);

    Page<Building> findByCompanyIdAndNameLikeOrderByName(String companyId, String name, Pageable pageable);

    @Query("#{#n1ql.selectEntity} where #{#n1ql.filter} and companyId = $1 and $2 within #{#n1ql.bucket}")
    Building findByCompanyAndAreaId(String companyId, String areaId);

    @Query("#{#n1ql.selectEntity} where #{#n1ql.filter} AND ANY phone IN phoneNumbers SATISFIES phone = $1 END")
    List<Building> findByPhoneNumber(String telephoneNumber);

    @Query("SELECT COUNT(*) AS count FROM #{#n1ql.bucket} WHERE #{#n1ql.filter} and companyId = $1")
    Long countBuildings(String companyId);
}

我的服务等级：

@Service
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);
    }

}

标签： javaspringspring-mvcspring-datacouchbase

解决方案

你错过了配置类 couchbase 服务器

为您的 couhcebase创建一个扩展AbstractCouchbaseConfiguration的专用配置类，如下所示（ server @ ， user ， pwd ）

@Configuration
@EnableCouchbaseRepositories(basePackages = {"com.xplorg.model"})
public class CouchbaseConfig extends AbstractCouchbaseConfiguration {

    @Override
    protected List<String> getBootstrapHosts() {
        return Arrays.asList("your server ip (like localhost in local)");
    }

    @Override
    protected String getBucketName() {
        return "username";
    }

    @Override
    protected String getBucketPassword() {
        return "passsword";
    }
}

在您的项目配置中也更改@ComponentScan("com.xplorg.controller")为@ComponentScan("com.xplorg")，因此应扫描您的存储库接口和服务

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