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我正在构建一个使用 spring 4.1.2 和 Cassandra 2.1.2 作为数据库的 Web 应用程序。在 spring-data-cassandra 的集成过程中，我遇到了 bean 创建异常。谁能指导我哪里出错了？错误跟踪是 


org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.springframework.data.cassandra.core.CassandraOperations someapp.dao.role.JdbcSomeDao.cassandraOperations; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException. No qualifying bean of type [org.springframework.data.cassandra.core.CassandraOperations] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. 
Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

我的源代码如下：
Web 应用程序被初始化的 Web 初始化文件

public class WebInitConfig implements WebApplicationInitializer {

    @Override
    public void onStartup(ServletContext servletContext) throws ServletException {
        AnnotationConfigWebApplicationContext rootContext = new           AnnotationConfigWebApplicationContext();
        rootContext.register(DispatcherConfig.class);
        servletContext.addListener(new ContextLoaderListener(rootContext));
        servletContext.setInitParameter("defaultHtmlEscape", "true");

        AnnotationConfigWebApplicationContext mvcContext = new AnnotationConfigWebApplicationContext();
           mvcContext.register(CassandraConfig.class);
        // The main Spring MVC servlet.
        ServletRegistration.Dynamic appServlet = servletContext.addServlet("appServlet", new DispatcherServlet(mvcContext));
                appServlet.setLoadOnStartup(1);
        Set<String> mappingConflicts = appServlet.addMapping("/");
        if (!mappingConflicts.isEmpty()) {
            for (String s : mappingConflicts) {
               System.out.println("Mapping conflict: " + s);
            }
            throw new IllegalStateException(
                 "'appServlet' cannot be mapped to '/' under Tomcat versions <= 7.0.14");
           }
        }

     }

包含 spring 调度程序代码和视图解析器的 DispatcherConfig 文件。

@Configuration
@EnableWebMvc
@PropertySource("classpath:cassandra.properties")
@ComponentScan("randompackage.*")
public class DispatcherConfig extends WebMvcConfigurerAdapter {

     @Override
     public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/css/**").addResourceLocations("/css/");
     }

     @Bean
     public ViewResolver configureViewResolver() {
         InternalResourceViewResolver viewResolve = new InternalResourceViewResolver();
         viewResolve.setPrefix("/WEB-INF/jsp/");
         viewResolve.setSuffix(".jsp");

         return viewResolve;
     }

     @Override
     public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer){
       configurer.enable();
     }
}

spring-data-cassandra 配置文件“CassandraConfig.java，在应用启动时加载在 webinitconfig.java

@Configuration
@PropertySource(value = { "classpath:cassandra.properties" })
@EnableCassandraRepositories(basePackages = { "someapp.dao" })
public class CassandraConfig {
/*  
      @Autowired
      private Environment env;
*/
      @Bean
      public CassandraClusterFactoryBean cluster() {

        CassandraClusterFactoryBean cluster = new CassandraClusterFactoryBean();
        cluster.setContactPoints("10.20.13.157");
        cluster.setPort(Integer.parseInt("9042"));

        return cluster;
      }

      @Bean
      public CassandraMappingContext mappingContext() {
        return new BasicCassandraMappingContext();
      }

      @Bean
      public CassandraConverter converter() {
        return new MappingCassandraConverter(mappingContext());
      }

      @Bean
      public CassandraSessionFactoryBean session() throws Exception {

        CassandraSessionFactoryBean session = new CassandraSessionFactoryBean();
        session.setCluster(cluster().getObject());
        session.setKeyspaceName("spring_data");
        session.setConverter(converter());
        session.setSchemaAction(SchemaAction.NONE);

        return session;
      }

      @Bean
      public CassandraOperations cassandraTemplate() throws Exception {
        return new CassandraTemplate(session().getObject());
      }


      @Bean(name="someManager")
      public SomeManager getSomeManager() throws Exception {
          return new someClassManager();
      }

      @Bean(name="someDao")
      public SomeDao getSomeDao() throws Exception {
          return new someDao();
      }

}

我有各自的控制器、服务和道。

@Controller
public class SomeRegistrationController {

    @Autowired
    SomeManager someManager;

    @RequestMapping(value="registration.htm")
    public String registration() {
        someManager.Registration(new SomeDom());

        return "registration";

    }


}

一些映射的服务类

@Service("someManager")
public class SomeClassManager implements SomeManager {

    @Autowired
    SomeDao someDao;


    @Override
    public void registration(SomeDom details) {
        someDao.registration(details);
    }

}

jdbc交互的dao类

@Repository("someDao")
//@EnableAutoConfiguration
public class JDBCSomeDao implements SomeDao{

    @Autowired
    private CassandraOperations cassandraOperations;

    @Override
    public void Registration(SomeDom details) {
        System.out.println("JDBC");
        System.out.println(cassandraOperations.toString());     
    }
}
4

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