Spring 配置文件ID值和类中getBean()中类的值不对应的报错信息

报错信息如下：

Exception in thread "main" org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'runit_ref' is defined

at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:527)

at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:1083)

at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:274)

at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)

at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1075)

at runit.runit.main(runit.java:19)

Spring 配置文件ID值和类中getBean()中类的值不对应