目录1.定义对象2.注册对象3.DEBUGAware处理4.完整初始化流程概览5. applyBeanPostProcessorsBeforeInitialization5.1 this.beanPostProcessors里面的处理顺序5.1.1ApplicationContextAwareProcessor5.1.2 ApplicationListenerDetector5.1.3 WebApplicationContextServletContextAwareProcessor5.1.4ConfigurationClassPostProcessor.ImportAwareBeanPost