Error creating bean with name 'com.taotao.content.service.ContentCategoryService': Cannot resolve……

配置了spring的项目中，tomcat启动时报错：

严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.taotao.content.service.ContentCategoryService': Cannot resolve reference to bean 'ContentCategoryServiceImpl' while setting bean property 'ref'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'ContentCategoryServiceImpl' is defined

    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:359)

    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108)

    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1481)

    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1226)

    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543)

    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)

    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)

    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)

    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)

    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)

    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:772)

    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:839)

    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538)

    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:446)

    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:328)

    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107)

    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4939)

    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5434)

    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.run(FutureTask.java:266)

    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)

    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)

    at java.lang.Thread.run(Thread.java:748)

Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'ContentCategoryServiceImpl' is defined

    at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:698)

    at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:1175)

    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:284)

    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)

    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351)

    ... 24 more

原因 ：spring配置文件中扫描包没有扫描上。

原来在applicationContextService中的配置为：

<dubbo:service inter ref="ContentCategoryServiceImpl" timeout="300000"/>      

导致没有扫描上@Service标注的类ContentCategoryServiceImpl，配置文件改成：

<dubbo:service inter

ref="contentCategoryServiceImpl" timeout="300000"/>

配置ref=""的时候，ContentCategoryServiceImpl首字母小写就可以了。