Spring源码情操陶冶-AbstractApplicationContext#postProcessBeanFactory

阅读源码有利于陶冶情操，承接前文Spring源码情操陶冶-AbstractApplicationContext#prepareBeanFactory
约定：web.xml中配置的contextClass为XmlWebApplicationContext

瞧瞧官方注释

/**
	 * Modify the application context's internal bean factory after its standard
	 * initialization. All bean definitions will have been loaded, but no beans
	 * will have been instantiated yet. This allows for registering special
	 * BeanPostProcessors etc in certain ApplicationContext implementations.
	 * @param beanFactory the bean factory used by the application context
	 */

主要承接前文中的prepareBeanFactory()方法后，供子类在标准的基础上再添加自定义的属性性质，主要是注册BeanPostProcessors

源码简析

对应的父类AbstractRefreshableWebApplicationContext#postProcessBeanFactory代码清单如下

	/**
	 *注册request/session环境
	 * Register request/session scopes, a {@link ServletContextAwareProcessor}, etc.
	 */
	@Override
	protected void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) {
		//注册ServletContextAwareProcessor
		beanFactory.addBeanPostProcessor(new ServletContextAwareProcessor(this.servletContext, this.servletConfig));
		beanFactory.ignoreDependencyInterface(ServletContextAware.class);
		beanFactory.ignoreDependencyInterface(ServletConfigAware.class);
		//注册web环境，包括request、session、golableSession、application
		WebApplicationContextUtils.registerWebApplicationScopes(beanFactory, this.servletContext);
		//注册servletContext、contextParamters、contextAttributes  、servletConfig单例bean
		WebApplicationContextUtils.registerEnvironmentBeans(beanFactory, this.servletContext, this.servletConfig);
	}

具体的调用BeanFactoryPostProcessors可见下节

下节预告

Spring源码情操陶冶-AbstractApplicationContext#invokeBeanFactoryPostProcessors