在jar的maven依赖项中找不到要自动连线的Bean，

Question

I add jar with bean using maven. Than I want to autowire them in context file...

    <?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">

    <bean id="statisticsService" class="com.ac.kpi.AcStatisticsService">
        <constructor-arg name="dataService" ref="acDataService"/>
    </bean>

</beans>

Problem: when I run tomcat I get Error:

Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.ac.kpi.StatisticsService] 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:1326)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1072)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:967)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:543)

Despite the fact that all maven dependencies are imported and present. MoreOver in Idea, in LinuxOS everyring work, problem is only in eclipse, Windows OS.

Answer 1

This kind of exception is thrown if Spring doesn't find any bean to autowire. This may be due to the fact that you are autowiring an interface but there is no actual implementation of that interface. Check if this is the case of your StatisticsService.

Answer 2

I have same problem with you sometimes. Delete the local com.ac.* package file in .m2, then download it again.