@Autowired不是Spring MVC中管理“自动装配Autowired依赖注射失败”

我尝试一个bean注入到我的级Java ValiderBR@Autowired不是Spring MVC中管理“自动装配Autowired依赖注射失败”

@Service 
public class ValiderBR extends BusinessRule { 
    @Autowired 
    ILog logger; 
... 
}

，但我有造成@Autowired注解注入的错误

22 mai 2013 14:44:02 org.apache.catalina.core.ApplicationContext log 
GRAVE: StandardWrapper.Throwable 
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'validerBR': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: ma.co.services.log.ILog awb.businessrules.WorkflowIndividu.ValiderBR.logger; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [ma.co.services.log.ILog] 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:288) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1122) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:522) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461) 
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295) 
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) 
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292) 
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) 
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:626) 
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932) 
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479) 
at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:651) 
at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:599) 
at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:665) 
at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:518) 
at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:459) 
at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136) 
at javax.servlet.GenericServlet.init(GenericServlet.java:160) 
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1267) 
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1186) 
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1081) 
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5027) 
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5314) 
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) 
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) 
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) 
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) 
at java.util.concurrent.FutureTask.run(Unknown Source) 
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) 
at java.lang.Thread.run(Unknown Source) 
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: ma.co.services.log.ILog awb.businessrules.WorkflowIndividu.ValiderBR.logger; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [ma.co.services.log.ILog] 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$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:514) 
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87) 
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:285) 
... 30 more 
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [ma.co.services.log.ILog] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} 
at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:986) 
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:856) 
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:768) 
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:486) 
... 32 more 
22 mai 2013 14:44:02 org.apache.catalina.core.StandardContext loadOnStartup 
GRAVE: La servlet /appExempleSpring-web a généré une exception "load()" 
org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [ma.co.services.log.ILog] 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:986) 
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:856) 
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:768) 
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:486) 
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87) 
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:285) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1122) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:522) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461) 
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295) 
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) 
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292) 
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) 
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:626) 
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932) 
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479) 
at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:651) 
at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:599) 
at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:665) 
at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:518) 
at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:459) 
at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136) 
at javax.servlet.GenericServlet.init(GenericServlet.java:160) 
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1267) 
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1186) 
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1081) 
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5027) 
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5314) 
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) 
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) 
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) 
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) 
at java.util.concurrent.FutureTask.run(Unknown Source) 
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) 
at java.lang.Thread.run(Unknown Source) 
22 mai 2013 14:44:02 org.apache.catalina.startup.HostConfig deployDirectory

，并有我的配置在spring-servlet.xml中

<context:annotation-config /> 
    <context:component-scan base-package="client.controller" /> 

    <context:component-scan base-package="ma" /> 
    <context:component-scan base-package="awb" /> 

    <bean id="jspViewResolver" 
     class="org.springframework.web.servlet.view.InternalResourceViewResolver"> 
     <property name="viewClass" 
      value="org.springframework.web.servlet.view.JstlView" /> 
     <property name="prefix" value="/WEB-INF/jsp/" /> 
     <property name="suffix" value=".jsp" /> 
    </bean>

和有我ILog的接口

public interface ILog { 


void debug(String msg); 

void debug(String msg, Throwable t); 

void error(String msg); 

void error(String msg, Throwable t); 

void fatal(String msg); 

void fatal(String msg, Throwable t); 

void info(String msg); 

void info(String msg, Throwable t); 

void warning(String msg); 

void warning(String msg, Throwable t);

}

和那里的类实现ILog的接口

public class Slf4jLogger implements ILog { 
private Logger logger = LoggerFactory.getLogger(Slf4jLogger.class); 

public void debug(String msg) { 
    logger.debug(msg); 
} 

public void debug(String msg, Throwable t) { 
    logger.debug(msg, t); 
} 

public void error(String msg) { 
    logger.error(msg); 
} 

public void error(String msg, Throwable t) { 
    logger.error(msg, t); 
} 

public void fatal(String msg) { 
    logger.error("FATAL ERROR:" + msg); 
} 

public void fatal(String msg, Throwable t) { 
    logger.error("FATAL ERROR:" + msg, t); 
} 

public void info(String msg) { 
    logger.info(msg); 
} 

public void info(String msg, Throwable t) { 
    logger.info(msg, t); 
} 

public void warning(String msg) { 
    logger.warn(msg); 
} 

public void warning(String msg, Throwable t) { 
    logger.warn(msg, t); 
}

}

感谢的提前寻求帮助。

来源

2013-05-22 Mouhie

你确定你有豆的背景下实施的ILog？你能发布完整的堆栈跟踪吗？ –

@leo我编辑了这篇文章，并把我的完整堆栈跟踪 – Mouhie

你有一个类实现ILog创建为一个spring bean（使用@ Component/@ Service或直接在XML中）？ – gkamal

Spring只能注入在其上下文中实例化的bean。

因此，您的课程必须位于使用@Component/@Service/@Repository注释激活组件扫描的程序包中。

或者，您可以在XML实例吧：

<bean id="iLog" class="my.package.Slf4jLogger"/>

来源

2013-05-22 14:24:06

谢谢你，你救了我的生命！ – Mouhie

@Autowired不是Spring MVC中管理“自动装配Autowired依赖注射失败”

回答

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