实例化(反射创建实例)
初始化
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给属性赋值:populateBean(beanName, mbd, instanceWrapper);
如果实现了BeanNameAware接口：执行((BeanNameAware) bean).setBeanName(beanName);
如果实现了BeanClassLoaderAware接口：执行((BeanClassLoaderAware) bean).setBeanClassLoader(bcl);
如果实现了BeanFactoryAware接口：((BeanFactoryAware) bean).setBeanFactory(AbstractAutowireCapableBeanFactory.this);
找到所有BeanPostProcessor，逐个执行processor.postProcessBeforeInitialization(result, beanName);
wrappedBean = applyBeanPostProcessorsBeforeInitialization(wrappedBean, beanName);
processor.postProcessBeforeInitialization(result, beanName);
如果实现了InitializingBean，执行((InitializingBean) bean).afterPropertiesSet();
invokeInitMethods(beanName, wrappedBean, mbd);
如果配置了init-method，执行配置的init-method
invokeCustomInitMethod(beanName, bean, mbd);
找到所有BeanPostProcessor，逐个执行processor.postProcessAfterInitialization(result, beanName);
wrappedBean = applyBeanPostProcessorsAfterInitialization(wrappedBean, beanName);
processor.postProcessAfterInitialization(result, beanName);
如果是单实例BEAN，添加到singletonObjects中
if (newSingleton) {
addSingleton(beanName, singletonObject);
}
如果是销毁Bean，调用destory-method配置的方法
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