Comment réparer NoSuchBeanDefinitionException en utilisant CrudRepository de Spring Data Jpa?

Question

Collegues, I'am essayant d'obtenir des données de base de données à l'aide du référentiel Spring Crud:

@Component 
public interface AssetsGapSortDAO extends CrudRepository<AssetsGapSortEntity, Integer> { 
    AssetsGapSortEntity getByIsin(String ISIN); 
} 

entité JPA ressemble à:

@Entity 
@Table(name = "Assets", schema = "dbo", catalog = "") 
public class AssetsGapSortEntity { 
    private BigInteger id; 

    private String shortName; 
    private String isin; 
    private int registrationDate; 
    /*Some other properties*/ 

    @Basic 
    @Column(name = "id") 
    public BigInteger getId() { 
     return id; 
    } 

    public void setId(BigInteger id) { 
     this.id = id; 
    } 


    @Id 
    @Column(name = "ShortName") 
    public String getShortName() { 
     return shortName; 
    } 

    public void setShortName(String shortName) { 
     this.shortName = shortName; 
    } 


    @Basic 
    @Column(name = "ISIN") 
    public String getIsin() { 
     return isin; 
    } 

    public void setIsin(String isin) { 
     this.isin = isin; 
    } 

    /*Equals and hashcode methods*/ 


    @Override 
    public String toString() { 
     ToStringStyle style = new NotNullToStringStyle(); 
     return ToStringBuilder.reflectionToString(this, style); 
    } 


} 

Quand je lance test JUnit:

@RunWith(SpringJUnit4ClassRunner.class) 
@ContextConfiguration(classes = OlmeSmbConfig.class, loader = AnnotationConfigContextLoader.class) 
public class AssetsGapSortDAOTest { 
    private static final Logger log = LoggerFactory.getLogger(ExtractionsDAOTest.class); 

    @Autowired 
    AssetsGapSortDAO assetsGapSortDAO; 

    @Test 
    public void getByIsin() throws Exception { 
     log.info(assetsGapSortDAO.getByIsin("TT0W3888254").toString()); 
    } 

} 

je reçois la pile naxtTrace:

java.lang.IllegalStateException: Failed to load ApplicationContext 

    at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:124) 
    at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:83) 
.... 
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144) 
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'assetInfoLoader': Unsatisfied dependency expressed through field 'assetsGapSortDAO'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.comp.olme.jpa.dao.GapSort.AssetsGapSortDAO' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} 
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:588) 
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) 
    .... 
    at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:116) 
    ... 29 more 
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.comp.olme.jpa.dao.GapSort.AssetsGapSortDAO' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1474) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1102) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1064) 
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:585) 
    ... 45 more 

Ma config ressemble:

@Configuration 
@EnableTransactionManagement 
@ComponentScan (basePackages = {"com.comp.olme"}) 
@PropertySource("classpath:OlmeSmb-${env}.properties") 
@EnableScheduling 
public class OlmeSmbConfig { 
/*There are DataSource, EntityManagerFactory beans etc....*/ 
} 

Quand j'utilise tout simplement JPA fonctionne très bien, mais je voudrais essayer CrudRepository. Donc la question est pourquoi je reçois NoSuchBeanDefinitionException et comment y remédier? Merci.

MISE À JOUR

Selon @javaguy conseils, j'ai ajouté à mon annotation config @EnableJpaRepositories:

@EnableJpaRepositories(basePackages="com.comp.olme", entityManagerFactoryRef ="emGapSort", transactionManagerRef = "txManagerGapSort") 

et le "NoSuchBeanDefinitionException" a été fixé, mais la nouvelle augmentation:

Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name '(inner bean)#3e4e8fdf': Unsatisfied dependency expressed through method 'createSharedEntityManager' parameter 0: 
Could not convert argument value of type [com.sun.proxy.$Proxy44] to required type [javax.persistence.EntityManagerFactory]: 
Failed to convert value of type 'com.sun.proxy.$Proxy44 implementing org.hibernate.jpa.HibernateEntityManager,org.springframework.orm.jpa.EntityManagerProxy' to required type 'javax.persistence.EntityManagerFactory'; 
nested exception is java.lang.IllegalStateException: 
Cannot convert value of type 'com.sun.proxy.$Proxy44 implementing org.hibernate.jpa.HibernateEntityManager,org.springframework.orm.jpa.EntityManagerProxy' to required type 'javax.persistence.EntityManagerFactory': 
no matching editors or conversion strategy found 
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:723) 
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:467) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1134) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1028) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) 
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:299) 
    ... 58 more 

Peut-être parce que j'ai plus d'une source de données dans Spring Config (il y en a deux pour diffe louer DB)? Comment le réparer? Désolé si elle hors de portée ...

Answer 1

spring-data fournit automatiquement la mise en œuvre pour vos classes DAO (référentiel) (à savoir, pour votre interface AssetsGapSortDAO), mais vous devez savoir où se trouvent vos classes de référentiel. Ainsi, ajoutez l'annotation de niveau de classe @EnableJpaRepositories(basePackages="com.yourproject") à votre classe OlmeSmbConfig pour rechercher les référentiels.

Je vous suggère de vous référer à here pour plus de compréhension sur le fonctionnement des données de printemps.

Aussi, je vous recommande d'annoter votre AssetsGapSortDAO comme @Repository plutôt que @Component (même si techniquement cela fonctionne, le marquage @Repository rend plus clair pour les classes dépôt/dao).