关于springboot:Spring-Boot-如何处理Autowired二

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Spring Boot 如何解决 @Autowired（一）
这篇小文可知 AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues() 最终执行对 @Autowired 的属性实例进行织入；而后以 DefaultListableBeanFactory.resolveDependency()->DefaultListableBeanFactory.doResolveDependency()->DependencyDescriptor.resolveCandidate()->beanFactory.getBean() 的链条进行创立 field bean 实例：

public Object resolveDependency(){
    // 省略其余 code
    {Object result = getAutowireCandidateResolver().getLazyResolutionProxyIfNecessary(descriptor, requestingBeanName);
            if (result == null) {result = doResolveDependency(descriptor, requestingBeanName, autowiredBeanNames, typeConverter);
            }
            return result;
        }
}

public Object resolveCandidate(String beanName, Class<?> requiredType, BeanFactory beanFactory)
            throws BeansException {return beanFactory.getBean(beanName);
    }

当初是不是恍然大悟了？整个调用链路就清晰起来了～，原本有点懒，就不总结了，总结就交给读者敌人了，欢送留言加友探讨～

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