[SPRING] 스프링 부트 Autowired가 Configuration 클래스에서 작동하지 않습니다.

스프링 부트 Autowired가 Configuration 클래스에서 작동하지 않습니다.

캐싱을 위해 Redis 서버를 사용하는 Spring Boot 애플리케이션이 있습니다. Redis 서버에 연결하기 위해 Spring RedisTemplate을 사용합니다. @Confiuration 클래스에서 Redis 매개 변수를 구성합니다. 그러나 redis url 및 port는 DB에 저장되고 해당 DAO는 다른 클래스의 멤버로 포함됩니다 (다른 전역 정보로드도 포함). Configuration 클래스에서 부모 클래스를 autowire하려고하지만 오류가 발생합니다. 이것은 내가 가지고있는 코드이다.

@Configuration
public class MyConfiguration {
    @Autowired
    protected GlobalPropertiesLoader globalPropertiesLoader;

    @Bean
    JedisConnectionFactory jedisConnectionFactory() {
        JedisConnectionFactory factory = new JedisConnectionFactory();
        GlobalPropertiesDAO globalPropertiesDAO = globalPropertiesLoader.getGlobalProperties();

        factory.setHostName(globalPropertiesDAO.getRedisUrl());
        factory.setPort(globalPropertiesDAO.getRedisPort());
        factory.setUsePool(true);
        return factory;
    }

    @Bean
    RedisTemplate< String, Object > redisTemplate() {
        final RedisTemplate< String, Object > template =  new RedisTemplate< String, Object >();
        template.setConnectionFactory( jedisConnectionFactory() );
        template.setKeySerializer( new StringRedisSerializer() );
        template.setHashValueSerializer( new GenericToStringSerializer< Object >( Object.class ) );
        template.setValueSerializer( new GenericToStringSerializer< Object >( Object.class ) );
        return template;
    }
}

GlobalPropertiesLoader는 DAO (GlobalPropertiesDAO)를 개체로 포함하는 클래스입니다. 내 응용 프로그램을 실행하려고하면 다음 오류가 발생합니다.

Exception in thread "main" 
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.mypkg.CommonsConfiguration': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: protected com.utils.GlobalPropertiesLoader com.mypkg.CommonsConfiguration.globalPropertiesLoader; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.utils.GlobalPropertiesLoader] 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)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1202)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1127)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1051)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:949)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:533)
    ... 50 more
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: protected com.utils.GlobalPropertiesLoader com.mypkg.CommonsConfiguration.globalPropertiesLoader; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.utils.GlobalPropertiesLoader] 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$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:561)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331)
    ... 61 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.utils.GlobalPropertiesLoader] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1308)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1054)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:949)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:533)

여기에 무슨 문제가 있습니까? @Configuration 클래스에서 Autowire 할 수 있습니까? 다른 클래스에서 같은 클래스를 자동으로 호출 할 수 있기 때문입니다.

::::::::::::::::::::: 편집하다 ::::::::::::::::::::

나는 아래에 @Import를 시도했다 :

@Configuration
@Import({GlobalPropertiesLoader.class})
public class CommonsConfiguration {
    @Autowired
    GlobalPropertiesLoader globalPropertiesLoader;
    ....
}

그러나 이렇게하면 다음과 같은 오류가 발생합니다.

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.utils.GlobalPropertiesLoader': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: public com.persistence.repositories.GlobalPropertiesRepository com.utils.GlobalPropertiesLoader.globalPropertiesRepository; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.persistence.repositories.GlobalPropertiesRepository] 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)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1202)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1127)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1051)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:949)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:533)
    ... 63 more
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: public com.persistence.repositories.GlobalPropertiesRepository com.utils.GlobalPropertiesLoader.globalPropertiesRepository; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.persistence.repositories.GlobalPropertiesRepository] 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$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:561)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331)
    ... 74 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.persistence.repositories.GlobalPropertiesRepository] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1308)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1054)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:949)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:533)

이것은 GlobalPropertiesLoader 클래스입니다.

@Component
@Scope("singleton")
public class GlobalPropertiesLoader {
    @Autowired
    public GlobalPropertiesRepository globalPropertiesRepository;
    private GlobalPropertiesDAO globalProperties;
/*
     * Load GlobalProperties once upon loading the context.
     */
    @PostConstruct
    public void init(){
        globalProperties = globalPropertiesRepository.findOne(1L);
        ....
    }
}

그리고 GlobalPropertiesRepository java :

@Repository
public interface GlobalPropertiesRepository extends CrudRepository<GlobalPropertiesDAO, Long>{      
}

감사.

해결법

1. ==============================

   1.@Import는 다른 구성 클래스에 구성 클래스를 추가하는 것입니다.

   @Import는 다른 구성 클래스에 구성 클래스를 추가하는 것입니다.

   http://docs.spring.io/spring-javaconfig/docs/1.0.0.M4/reference/html/ch04s03.html

   @ComponentScan은 @Service, @Component, @Repository 등과 같이 코드에서 선언 된 구성 요소를 검색하는 것입니다.

   http://docs.spring.io/spring-javaconfig/docs/1.0.0.M4/reference/html/ch06s02.html

   구성 클래스에 @ComponentScan을 추가해야 구성 요소 클래스로 패키지를 검사 할 수 있다고 생각합니다.

   @Configuration
   @ComponentScan(value = "org.foo.path.baseFolder")
   public class MyConfiguration {
       @Autowired
       protected GlobalPropertiesLoader globalPropertiesLoader;
   

2. ==============================

   2.@Configurations는 먼저 시작하려고하는 클래스입니다. MyConfiguration이 시작되면 GlobalPropertiesLoader에 인스턴스가 없습니다. 이 시도.

   @Configurations는 먼저 시작하려고하는 클래스입니다. MyConfiguration이 시작되면 GlobalPropertiesLoader에 인스턴스가 없습니다. 이 시도.

   @Configuration
   @Import({GlobalPropertiesLoader.class})
   public class MyConfiguration {
   }
   

3. ==============================

   3.이 오류의 원인 중 하나는이 클래스를 구현하지 않았기 때문입니다. UserDetailsService를 구현하는 CustomUserDetailsService라는 클래스를 만들고 @Component로 주석을 만듭니다. 자세한 것은 스프링 문서를 참조하십시오. @reos가 인용 한 솔루션을 따르십시오.

   이 오류의 원인 중 하나는이 클래스를 구현하지 않았기 때문입니다. UserDetailsService를 구현하는 CustomUserDetailsService라는 클래스를 만들고 @Component로 주석을 만듭니다. 자세한 것은 스프링 문서를 참조하십시오. @reos가 인용 한 솔루션을 따르십시오.

from https://stackoverflow.com/questions/33642199/spring-boot-autowired-not-working-in-configuration-class by cc-by-sa and MIT license