Spring source code invokeBeanFactoryPostProcessors method description (two)

Spring source code invokeBeanFactoryPostProcessors method description (two)

1. Start
1. Look for the configuration class (org.springframework.context.annotation.ConfigurationClassPostProcessor#processConfigBeanDefinitions)

2. There is such a piece of code in checkConfigurationClassCandidate. After



reading this code, does it suddenly get something? Is it for finding the configuration class? The method is understood.

3. Key points (org.springframework.context.annotation.ConfigurationClassParser#parse)


4. doProcessConfigurationClass analysis


5. doProcessConfigurationClass–>@PropertySource annotation analysis




6. doProcessConfigurationClass–>@ComponentScan annotation analysis (focus)

parse: Creating ClassPathBeanDefinitionScanner, convert componentScan ClassPathBeanDefinitionScanner into


the following main analysis doScan in these two methods

findCandidateComponents to analyze


findCandidateComponents-> isCandidateComponent

findCandidateComponents-> registerBeanDefinition, at a glance, registered beanDefinition, registered alias

Second, the end of the
chapter analyzes the @PropertySource and @ ComponentScan source code. The next chapter will analyze the @Import source code.