CommonAnnotationBeanPostProcessor.java 文件源码

@Override
protected Object getResourceToInject(Object target, String requestingBeanName) {
    if (StringUtils.hasLength(this.beanName)) {
        if (beanFactory != null && beanFactory.containsBean(this.beanName)) {
            // Local match found for explicitly specified local bean name.
            Object bean = beanFactory.getBean(this.beanName, this.lookupType);
            if (beanFactory instanceof ConfigurableBeanFactory) {
                ((ConfigurableBeanFactory) beanFactory).registerDependentBean(this.beanName, requestingBeanName);
            }
            return bean;
        }
        else if (this.isDefaultName && !StringUtils.hasLength(this.mappedName)) {
            throw new NoSuchBeanDefinitionException(this.beanName,
                    "Cannot resolve 'beanName' in local BeanFactory. Consider specifying a general 'name' value instead.");
        }
    }
    // JNDI name lookup - may still go to a local BeanFactory.
    return getResource(this, requestingBeanName);
}