Spring ioc 初始化过程

BeanPostProcessor

4.SmartInstantiationAwareBeanPostProcessor

determineCandidateConstructors

注入属性PropertyValues

JDK动态代理

BeanDefinitionRegisterPostProcessor

postProcessMergedBeanDefinition

postProcessBeforeInstantiation

BeanFactory

3.MergedBeanDefinitionPostProcessor

FileSystemXmlApplicationContext

bean的9大后置处理器

BeanDefinition

BeanPostProcessor.postProcessAfterInitialization

postProcessPropertyValues

getBean(\"beanName\")

注册

5.InstantiationAwareBeanPostProcessor

Spring是如何将自己写的@Compment或者XML中的 bean初始化成bean？

ClassPathXmlApplicationContext

BeanDefinitionReader

beanClassName

k:beanNamev：BeanDefinition

属性填充

CGLIB

getBean

postProcessBeforeInitialization

isSingleton

requireDistrction

1.InstantiationAwareBeanPostProcessor

put一级缓存

可直接返回bean停止创AOP切面建

8.BeanPostProcessor

more...

BeanDefinitionScanner

initMethod

getEarlyBeanReference

BeanFactoryPostProcessor：在BeanFactory标准初始化之后调用，来定制和修改BeanFactory的内容。BeanDefinitionRegisterPostProcessor：在所有bean定义信息将要被加载，bean实例还未创建的时候加载，优先于BeanFactoryPostProcessor执行，利用BeanDefinitionRegistryPostProcessor给容器中再额外添加一些组件

scope

指定实例化的构造函数

Bean

postProcessAfterInitialization

AOP

注册BeanDefinitionMap

destroyMethod

解析

解决循环引用AOP

7.BeanPostProcessor

2.SmartInstantiationAwareBeanPostProcessor

BeanPostProcessor.postProcessBeforeInitialization

bean的生命周期

BeanFactoryPostProcessor

lazzyInit

6.InstantiationAwareBeanPostProcessor

修改

实例化

dependson

initMethodName

终止赋值

资源文件定位

9.DistructionAwareBeanPostProcessor

BeanDefinitionRegister

AnnotationConfigApplicationContext

postProcessAfterInstantiation

@Autowired @Value预解析

初始化前调用@PostContruct

初始化后创建AOP代理