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L'injection de dépendances câblées automatiquement a échoué;

Je développe une petite application Java EE Hibernate Spring et une erreur est apparue:
Error creating bean with name 'articleControleur': Injection of autowired dependencies failed;

oct. 26, 2011 3:51:44 PM org.Apache.catalina.core.ApplicationContext log
Grave: StandardWrapper.Throwable
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'articleControleur': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.bd.service.ArticleService com.bd.controleur.ArticleControleur.articleService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [com.bd.service.ArticleService] 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:285)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.Java:1074)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.Java:517)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.Java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.Java:291)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.Java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.Java:288)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.Java:190)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.Java:580)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.Java:895)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.Java:425)
at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.Java:442)
at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.Java:458)
at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.Java:339)
at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.Java:306)
at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.Java:127)
at javax.servlet.GenericServlet.init(GenericServlet.Java:212)
at org.Apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.Java:1173)
at org.Apache.catalina.core.StandardWrapper.load(StandardWrapper.Java:993)
at org.Apache.catalina.core.StandardContext.loadOnStartup(StandardContext.Java:4350)
at org.Apache.catalina.core.StandardContext.start(StandardContext.Java:4659)
at org.Apache.catalina.core.ContainerBase.start(ContainerBase.Java:1045)
at org.Apache.catalina.core.StandardHost.start(StandardHost.Java:785)
at org.Apache.catalina.core.ContainerBase.start(ContainerBase.Java:1045)
at org.Apache.catalina.core.StandardEngine.start(StandardEngine.Java:445)
at org.Apache.catalina.core.StandardService.start(StandardService.Java:519)
at org.Apache.catalina.core.StandardServer.start(StandardServer.Java:710)
at org.Apache.catalina.startup.Catalina.start(Catalina.Java:581)
at Sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at Sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at Sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at Java.lang.reflect.Method.invoke(Unknown Source)
at org.Apache.catalina.startup.Bootstrap.start(Bootstrap.Java:289)
at org.Apache.catalina.startup.Bootstrap.main(Bootstrap.Java:414)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.bd.service.ArticleService com.bd.controleur.ArticleControleur.articleService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [com.bd.service.ArticleService] 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:502)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.Java:84)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.Java:282)
... 33 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [com.bd.service.ArticleService] 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:920)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.Java:789)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.Java:703)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.Java:474)
... 35 more

oct. 26, 2011 3:51:44 PM org.Apache.catalina.core.StandardContext loadOnStartup
Grave: La servlet /ExempleAchref a généré une exception "load()"
org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [com.bd.service.ArticleService] 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:920)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.Java:789)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.Java:703)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.Java:474)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.Java:84)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.Java:282)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.Java:1074)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.Java:517)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.Java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.Java:291)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.Java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.Java:288)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.Java:190)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.Java:580)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.Java:895)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.Java:425)
at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.Java:442)
at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.Java:458)
at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.Java:339)
at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.Java:306)
at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.Java:127)
at javax.servlet.GenericServlet.init(GenericServlet.Java:212)
at org.Apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.Java:1173)
at org.Apache.catalina.core.StandardWrapper.load(StandardWrapper.Java:993)
at org.Apache.catalina.core.StandardContext.loadOnStartup(StandardContext.Java:4350)
at org.Apache.catalina.core.StandardContext.start(StandardContext.Java:4659)
at org.Apache.catalina.core.ContainerBase.start(ContainerBase.Java:1045)
at org.Apache.catalina.core.StandardHost.start(StandardHost.Java:785)
at org.Apache.catalina.core.ContainerBase.start(ContainerBase.Java:1045)
at org.Apache.catalina.core.StandardEngine.start(StandardEngine.Java:445)
at org.Apache.catalina.core.StandardService.start(StandardService.Java:519)
at org.Apache.catalina.core.StandardServer.start(StandardServer.Java:710)
at org.Apache.catalina.startup.Catalina.start(Catalina.Java:581)
at Sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at Sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at Sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at Java.lang.reflect.Method.invoke(Unknown Source)
at org.Apache.catalina.startup.Bootstrap.start(Bootstrap.Java:289)
at org.Apache.catalina.startup.Bootstrap.main(Bootstrap.Java:414)

Et voici mon contrôleur ArticleControleur qui contient une fonction permettant de récupérer les listes d'articles:

package com.bd.controleur;

import Java.util.HashMap;
import Java.util.Map;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

import com.bd.service.ArticleService;

@Controller
@RequestMapping("/Article/GererArticle")
public class ArticleControleur {

    @Autowired
    ArticleService articleService;

    public ModelAndView listarticle() {

    Map<String, Object> model = new HashMap<String, Object>();
    model.put("articles", articleService.getAllArticles());

    // new ModelAndView("nom de la page jsp", model qui contient l'ensemble
    // des beans que tu vas passer a cette page)
    return new ModelAndView("GererArticle", model);

    }

}

Et voici mon articleService: 

package com.bd.service;

import Java.util.Collection;
import Java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.bd.dao.ArticleDao;
import com.bd.entity.Article;

@Service
public class ArticleServiceImp implements ArticleService {

    @Autowired
    private ArticleDao articledao;



    @Override
    public Article getArticleById(int articleId) {
        // TODO Auto-generated method stub
        return articledao.getById(articleId);
    }

    @Override
    public void saveArticle(Article article) {
        // TODO Auto-generated method stub
        articledao.save(article);

    }

    @Override
    public void deleteArticle(Article article) {
        // TODO Auto-generated method stub
        articledao.delete(article);
    }

    @Override
    public List<Article> getAllArticles() {
        // TODO Auto-generated method stub
        return articledao.getAll();
    }

}

Et voici mon contexte d'application: 

<?xml version="1.0" encoding="UTF-8"?>
<!--
  - Application context containing authentication, channel
  - security and web URI beans.
  -
  - Only used by "filter" artifact.
  -
  -->

<b:beans xmlns:b="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:p="http://www.springframework.org/schema/p" 
    xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:context="http://www.springframework.org/schema/context" 
    xmlns:jee="http://www.springframework.org/schema/jee"
    xmlns:tx="http://www.springframework.org/schema/tx"



    xsi:schemaLocation="http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
      http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.0.xsd
      http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
      http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
      http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
      ">


  <!-- Auto-detect components -->
  <context:component-scan base-package="com.bd.entity"/>


</b:beans>
springautowired
42
achref05

L'erreur indique que com.bd.service.ArticleService n'est pas un bean enregistré. Ajoutez les packages dans lesquels vous avez des beans qui seront automatiquement connectés dans le contexte de votre application: 

<context:component-scan base-package="com.bd.service"/>
<context:component-scan base-package="com.bd.controleur"/>

Sinon, si vous souhaitez inclure tous les sous-packages dans com.bd: 

<context:component-scan base-package="com.bd">
     <context:include-filter type="aspectj" expression="com.bd.*" />
</context:component-scan>

Remarque: si vous utilisez Spring 3.1 ou une version ultérieure, vous pouvez tirer parti de l'annotation @ComponentScan , de sorte que vous ne soyez pas obligé d'utiliser une configuration xml concernant le composant-scan. Utilisez-le avec @Configuration .

@Controller
@RequestMapping("/Article/GererArticle")
@Configuration
@ComponentScan("com.bd.service") // No need to include component-scan in xml
public class ArticleControleur {

    @Autowired
    ArticleService articleService;
    ...
}

Vous trouverez peut-être utile cette section Printemps/Profondeur sur Autowiring .

52
Xavi López

Avez-vous un bean déclaré dans votre fichier de contexte qui a un identifiant de "articleService"? Je crois que l'auto-câblage fait correspondre l'identifiant d'un bean dans vos fichiers de contexte avec le nom de variable que vous tentez d'autowire.

2
DaveH
public class Organization {

    @Id
    @Column(name="org_id")
    @GeneratedValue
    private int id;

    @Column(name="org_name")
    private String name;

    @Column(name="org_office_address1")
    private String address1;

    @Column(name="org_office_addres2")
    private String address2;

    @Column(name="city")
    private String city;

    @Column(name="state")
    private String state;

    @Column(name="country")
    private String country;

    @JsonIgnore
    @OneToOne
    @JoinColumn(name="pkg_id")
    private int pkgId;

    public int getPkgId() {
        return pkgId;
    }

    public void setPkgId(int pkgId) {
        this.pkgId = pkgId;
    }

    public String getCountry() {
        return country;
    }

    public void setCountry(String country) {
        this.country = country;
    }

    @Column(name="pincode")
    private String pincode;

    @OneToMany(mappedBy = "organization", cascade=CascadeType.ALL, fetch = FetchType.EAGER)
    private Set<OrganizationBranch> organizationBranch = new HashSet<OrganizationBranch>(0);

    @Column(name="status")
    private String status = "ACTIVE";

    @Column(name="project_id")
    private int redmineProjectId;

    public int getRedmineProjectId() {
        return redmineProjectId;
    }

    public void setRedmineProjectId(int redmineProjectId) {
        this.redmineProjectId = redmineProjectId;
    }

    public String getStatus() {
        return status;
    }

    public void setStatus(String status) {
        this.status = status;
    }

    public Set<OrganizationBranch> getOrganizationBranch() {
        return organizationBranch;
    }

    public void setOrganizationBranch(Set<OrganizationBranch> organizationBranch) {
        this.organizationBranch = organizationBranch;
    }

    public int getId() {
        return id;
    }

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

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getAddress1() {
        return address1;
    }

    public void setAddress1(String address1) {
        this.address1 = address1;
    }

    public String getAddress2() {
        return address2;
    }

    public void setAddress2(String address2) {
        this.address2 = address2;
    }

    public String getCity() {
        return city;
    }

    public void setCity(String city) {
        this.city = city;
    }

    public String getState() {
        return state;
    }

    public void setState(String state) {
        this.state = state;
    }

    public String getPincode() {
        return pincode;
    }

    public void setPincode(String pincode) {
        this.pincode = pincode;
    }
}

Vous modifiez la ligne private int pkgId dans change datatype int en nom de classe primitive ou ajoutez une annotation @autowired 

0
gajera bhavin