spring-全量自定义-BeanFactory

最新推荐文章于 2023-10-20 21:46:18 发布

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最新推荐文章于 2023-10-20 21:46:18 发布 · 884 阅读

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本文深入探讨了Spring中BeanFactory的角色，强调了其作为容器的基础客户端视图。介绍了BeanFactory的初始化顺序，包括aware接口和BeanPostProcessors流程。文章概述了BeanFactory的子接口HierarchicalBeanFactory、AutowireCapableBeanFactory和ListableBeanFactory的功能，并重点关注了ConfigurableBeanFactory，它是整个容器的配置接口，提供了丰富的可配置功能。

BeanFactory是接入spring-bean容器的基本客户端视图。有比较复杂的实现。其中，bean的完整初始化顺序如下：具体请参照BeanFactory源码

<ol>
 * <li>BeanNameAware's {@code setBeanName}
 * <li>BeanClassLoaderAware's {@code setBeanClassLoader}
 * <li>BeanFactoryAware's {@code setBeanFactory}
 * <li>EnvironmentAware's {@code setEnvironment}
 * <li>EmbeddedValueResolverAware's {@code setEmbeddedValueResolver}
 * <li>ResourceLoaderAware's {@code setResourceLoader}
 * (only applicable when running in an application context)
 * <li>ApplicationEventPublisherAware's {@code setApplicationEventPublisher}
 * (only applicable when running in an application context)
 * <li>MessageSourceAware's {@code setMessageSource}
 * (only applicable when running in an application context)
 * <li>ApplicationContextAware's {@code setApplicationContext}
 * (only applicable when running in an application context)
 * <li>ServletContextAware's {@code setServletContext}
 * (only applicable when running in a web application context)
 * <li>{@code postProcessBeforeInitialization} methods of BeanPostProcessors
 * <li>InitializingBean's {@code afterPropertiesSet}
 * <li>a custom init-method definition
 * <li>{@code postProcessAfterInitialization} methods of BeanPostProcessors
 * </ol>

以上是初始化方法和他们的标准顺序，主要是各种aware接口和BeanPostProcessors流程。本章将不做过多介绍，后续章节会对部分流程，结合Bean的初始化流程进行解析。