Spring源码情操陶冶-AbstractApplicationContext#postProcessBeanFactory

时间:2024-06-09 13:33:38

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contextClassXmlWebApplicationContext

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