接下来方法是

// Register bean processors that intercept bean creation.registerBeanPostProcessors(beanFactory);

源码：

protected void registerBeanPostProcessors(ConfigurableListableBeanFactory beanFactory) {
            //首先获得配置文件中配置了多少类实现了BeanPostProcessor接口        String[] postProcessorNames = beanFactory.getBeanNamesForType(BeanPostProcessor.class, true, false);        // Register BeanPostProcessorChecker that logs an info message when        // a bean is created during BeanPostProcessor instantiation, i.e. when        // a bean is not eligible for getting processed by all BeanPostProcessors.        int beanProcessorTargetCount = beanFactory.getBeanPostProcessorCount() + 1 + postProcessorNames.length;        beanFactory.addBeanPostProcessor(new BeanPostProcessorChecker(beanFactory, beanProcessorTargetCount));        // Separate between BeanPostProcessors that implement PriorityOrdered,        // Ordered, and the rest.        List
     
       priorityOrderedPostProcessors = new ArrayList
      
       ();        List
       
         internalPostProcessors = new ArrayList
        
         ();        List
         
           orderedPostProcessorNames = new ArrayList
          
           (); List
           
             nonOrderedPostProcessorNames = new ArrayList
            
             (); for (String ppName : postProcessorNames) { if (isTypeMatch(ppName, PriorityOrdered.class)) { BeanPostProcessor pp = beanFactory.getBean(ppName, BeanPostProcessor.class); priorityOrderedPostProcessors.add(pp); if (pp instanceof MergedBeanDefinitionPostProcessor) { internalPostProcessors.add(pp); } } else if (isTypeMatch(ppName, Ordered.class)) { orderedPostProcessorNames.add(ppName); } else { nonOrderedPostProcessorNames.add(ppName); } } // First, register the BeanPostProcessors that implement PriorityOrdered. OrderComparator.sort(priorityOrderedPostProcessors); registerBeanPostProcessors(beanFactory, priorityOrderedPostProcessors); // Next, register the BeanPostProcessors that implement Ordered. List
             
               orderedPostProcessors = new ArrayList
              
               (); for (String ppName : orderedPostProcessorNames) { BeanPostProcessor pp = beanFactory.getBean(ppName, BeanPostProcessor.class); orderedPostProcessors.add(pp); if (pp instanceof MergedBeanDefinitionPostProcessor) { internalPostProcessors.add(pp); } } OrderComparator.sort(orderedPostProcessors); registerBeanPostProcessors(beanFactory, orderedPostProcessors); // Now, register all regular BeanPostProcessors. List
               
                 nonOrderedPostProcessors = new ArrayList
                
                 (); for (String ppName : nonOrderedPostProcessorNames) { BeanPostProcessor pp = beanFactory.getBean(ppName, BeanPostProcessor.class); nonOrderedPostProcessors.add(pp); if (pp instanceof MergedBeanDefinitionPostProcessor) { internalPostProcessors.add(pp); } } registerBeanPostProcessors(beanFactory, nonOrderedPostProcessors); // Finally, re-register all internal BeanPostProcessors. OrderComparator.sort(internalPostProcessors); registerBeanPostProcessors(beanFactory, internalPostProcessors); beanFactory.addBeanPostProcessor(new ApplicationListenerDetector()); }
                
               
              
             
            
           
          
         
        
       
      
     

 

这个方法主要是向beanFactory注册所有实现了 BeanPostProcessor接口的类，在通过getBean获得对象时，会调用这些类对应的方法