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

  1. /**
  2. * Modify the application context's internal bean factory after its standard
  3. * initialization. All bean definitions will have been loaded, but no beans
  4. * will have been instantiated yet. This allows for registering special
  5. * BeanPostProcessors etc in certain ApplicationContext implementations.
  6. * @param beanFactory the bean factory used by the application context
  7. */

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

  1. /**
  2. *注册request/session环境
  3. * Register request/session scopes, a {@link ServletContextAwareProcessor}, etc.
  4. */
  5. @Override
  6. protected void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) {
  7. //注册ServletContextAwareProcessor
  8. beanFactory.addBeanPostProcessor(new ServletContextAwareProcessor(this.servletContext, this.servletConfig));
  9. beanFactory.ignoreDependencyInterface(ServletContextAware.class);
  10. beanFactory.ignoreDependencyInterface(ServletConfigAware.class);
  11. //注册web环境,包括request、session、golableSession、application
  12. WebApplicationContextUtils.registerWebApplicationScopes(beanFactory, this.servletContext);
  13. //注册servletContext、contextParamters、contextAttributes 、servletConfig单例bean
  14. WebApplicationContextUtils.registerEnvironmentBeans(beanFactory, this.servletContext, this.servletConfig);
  15. }

具体的调用BeanFactoryPostProcessors可见下节

下节预告

Spring源码情操陶冶-AbstractApplicationContext#invokeBeanFactoryPostProcessors

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