Ошибка ввода зависимых от автоподключения - не удалось автополе (весна)

Question

Я создаю приложение, которое подключается к базе данных Stardog через API Snarl вместе с Springboot для переднего конца. Автообученные бобы для snarlTemplate работают нормально, но у всех обнаруженных мной компонентов возникают проблемы. Я вынул autwiring для ValidationDAO и получил его для загрузки. Я посмотрел на другие сообщения с этой же проблемой, но я не мог найти решение.

Прежде всего, вот DAO (который я аннотировал как компонент) ... Validation - это POJO, определенный в другом файле.
SRC/главная/Java/проверки/ValidationDAO.java

@ComponentScan("com.complexible.stardog.ext.spring") 
@Component 
public class ValidationDAO { 

    private static final Logger logger = LoggerFactory.getLogger(ValidationDAO.class); 

    @Autowired 
    public SnarlTemplate snarlTemplate; 

    public List<Validation> validate() { 

     // TODO: file input 

     String query = "SELECT * WHERE { ?s ?p ?o }"; 

     logger.debug("DAO Query: " + query); 
     List<Validation> results = snarlTemplate.query(query, new RowMapper<Validation>() { 

      public Validation mapRow(BindingSet bindingSet) { 
       Validation v = new Validation(); 

       // set results of query 
       v.setSubject(bindingSet.getValue("s").stringValue()); 
       v.setPredicate(bindingSet.getValue("p").stringValue()); 
       v.setObject(bindingSet.getValue("o").stringValue()); 

       // set error message 
       v.setError("No given description."); 

       return v; 
      } 
     }); 

     return results; 
    } 

    public SnarlTemplate getSnarlTemplate() { 
     return snarlTemplate; 
    } 

    public void setSnarlTemplate(SnarlTemplate snarlTemplate) { 
     this.snarlTemplate = snarlTemplate; 
    } 

} 

А потом вот HomeController:
SRC/главная/Java/проверки/HomeController.java

@RestController 
public class HomeController { 

    private static final Logger logger = LoggerFactory.getLogger(HomeController.class); 

    @Autowired 
    public ValidationDAO validationDAO; 

    @RequestMapping(value = "/", method = RequestMethod.GET) 
    public String home(Locale locale, Model model) { 

     List<Validation> results = validationDAO.validate(); 
     logger.debug("Found " + results.size() + " errors in ontology."); 
     model.addAttribute("results", results); 
     return "home"; 

    } 

    public ValidationDAO getValidationDAO() { 
     return validationDAO; 
    } 

    public void setValidationDAO(ValidationDAO validationDAO) { 
     this.validationDAO = validationDAO; 
    } 

} 

Корневой контекст:
src/main/webapp/WEB-INF/spring/root-context.xml

<?xml version="1.0" encoding="UTF-8"?> 
<beans xmlns="http://www.springframework.org/schema/beans" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> 

    <context:component-scan base-package="src.main.java.validation"/> 
    <context:annotation-config/> 

    <bean name="dataSource" class="com.complexible.stardog.ext.spring.DataSourceFactoryBean"> 
     <property name="to" value="validationTest"/> 
     <property name="username" value="admin"/> 
     <property name="password" value="admin"/> 
     <property name="url" value="snarl://localhost:5820"/> 
    </bean> 

    <bean name="template" class="com.complexible.stardog.ext.spring.SnarlTemplate"> 
     <property name="dataSource" ref="dataSource"/> 
    </bean> 

</beans> 

И наконец, полное сообщение об ошибке.

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'homeController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: public validation.ValidationDAO validation.HomeController.validationDAO; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'validationDAO': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: public com.complexible.stardog.ext.spring.SnarlTemplate validation.ValidationDAO.snarlTemplate; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.complexible.stardog.ext.spring.SnarlTemplate] 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)} 
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1214) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:772) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:839) ~[spring-context-4.2.6.RELEASE.jar:4.2.6.RELEASE] 
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538) ~[spring-context-4.2.6.RELEASE.jar:4.2.6.RELEASE] 
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118) ~[spring-boot-1.3.3.RELEASE.jar:1.3.3.RELEASE] 
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:766) [spring-boot-1.3.3.RELEASE.jar:1.3.3.RELEASE] 
    at org.springframework.boot.SpringApplication.createAndRefreshContext(SpringApplication.java:361) [spring-boot-1.3.3.RELEASE.jar:1.3.3.RELEASE] 
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) [spring-boot-1.3.3.RELEASE.jar:1.3.3.RELEASE] 
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1191) [spring-boot-1.3.3.RELEASE.jar:1.3.3.RELEASE] 
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1180) [spring-boot-1.3.3.RELEASE.jar:1.3.3.RELEASE] 
    at validation.Application.main(Application.java:14) [main/:na] 
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: public validation.ValidationDAO validation.HomeController.validationDAO; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'validationDAO': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: public com.complexible.stardog.ext.spring.SnarlTemplate validation.ValidationDAO.snarlTemplate; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.complexible.stardog.ext.spring.SnarlTemplate] 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)} 
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:573) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    ... 17 common frames omitted 
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'validationDAO': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: public com.complexible.stardog.ext.spring.SnarlTemplate validation.ValidationDAO.snarlTemplate; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.complexible.stardog.ext.spring.SnarlTemplate] 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)} 
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1214) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1192) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1116) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1014) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:545) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    ... 19 common frames omitted 
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: public com.complexible.stardog.ext.spring.SnarlTemplate validation.ValidationDAO.snarlTemplate; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.complexible.stardog.ext.spring.SnarlTemplate] 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)} 
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:573) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    ... 30 common frames omitted 
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.complexible.stardog.ext.spring.SnarlTemplate] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1373) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1119) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1014) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:545) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 
    ... 32 common frames omitted 

Answer 1

Аннотации ComponentScan должны быть в конфигурации, а не в классе компонентов. Я действительно не знаю, работает ли он вообще, и в нем содержится пакет, который вы не упоминаете.

Второй пункт: Не используйте полевую инъекцию. (http://olivergierke.de/2013/11/why-field-injection-is-evil/)

Теперь вернемся к проблеме: Я думаю, что сканирование компонентов в XML-файле неверно или у ваших пакетов есть некоторые запутанные имена. Но я уверен, что это ваш путь к файлу maven/gradle;) Он не должен содержать путь к файлу, а только пакет validation.

<context:component-scan base-package="validation"/><context:annotation-config/> 

Answer 2

Вы уверены, что ваша конфигурация xml загружена?

http://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#using-boot-importing-xml-configuration