Error creating bean with name 'testController': Injection of resource dependencies failed;

启动ssm项目报错:

org.springframework.beans.factory.BeanCreationException:
Error creating bean with name 'testController': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.test.www.web.service.user.UserService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@javax.annotation.Resource(shareable=true, lookup=, name=, description=, authenticationType=CONTAINER, type=class java.lang.Object, mappedName=)} Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException:
No qualifying bean of type [com.test.www.web.service.user.UserService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@javax.annotation.Resource(shareable=true, lookup=, name=, description=, authenticationType=CONTAINER, type=class java.lang.Object, mappedName=)}

检查配置spring的配置文件里面的自动扫描配置、mybatis与spring整合配置、事务aop配置中的路径是否正确:

<!-- 自动扫描包 ,将带有注解的类 纳入spring容器管理 -->
<context:component-scan base-package="com.test.www"></context:component-scan>
<!-- mybatis文件配置,扫描所有mapper文件 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean" p:dataSource-ref="dataSource"
p:configLocation="/WEB-INF/conf/mybatis-config.xml"
p:mapperLocations="classpath*:com/test/www/web/dao/*.xml"/> <!-- spring与mybatis整合配置,扫描所有dao -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer" p:basePackage="com.test.www.web.dao"
p:sqlSessionFactoryBeanName="sqlSessionFactory"/>
<!-- 事务 aop 配置 -->
<aop:config>
<aop:pointcut id="serviceMethods" expression="execution(* com.test.www.web.service..*(..))"/>
<aop:advisor advice-ref="txAdvice" pointcut-ref="serviceMethods"/>
</aop:config>

No qualifying bean of type [com.test.www.web.service.user.UserService] found for dependency:

以及contorller和serviceimp中的是否添加了正确的注解:
@Controller、@Service

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