A large company in Beijing: SpringBean life cycle

25 articles have been serialized in the "Line Interviewer" series! deep and fun series!

• [Online interviewer] Java comment
• [Online Interviewer] Java Generic
• [Online Interviewer] Java NIO
• [Online interviewer] Java reflection && dynamic agent
• [Online interviewer] Multi-threaded foundation
• [Online Interviewer] CAS
• [Online interviewer] synchronized
• [Online interviewer] AQS&&ReentrantLock
• [Online interviewer] Thread pool
• [Online Interviewer] ThreadLocal
• [Online Interviewer] CountDownLatch and CyclicBarrier
• [Online interviewer] Why do you need a Java memory model?
• [Online Interviewer] List
• [Online Interviewer] Map
• [Online interviewer] SpringMVC
• [Online interviewer] Spring basics
• [Online interviewer] SpringBean life cycle
• [Online interviewer] Redis basics
• [Online interviewer] Redis persistence
• [Online interviewer] Kafka basics
• [Online interviewer] What issues will be considered when using Kafka?
• [Online interviewer] MySQL index
• [Online interviewer] MySQL transaction && lock mechanism &&MVCC
• [Online Interviewer] MySQL Tuning

The key source code method (strongly recommend that you do it again)

• org.springframework.context.support.AbstractApplicationContext#refresh (entrance)
• org.springframework.context.support.AbstractApplicationContext#finishBeanFactoryInitialization (initialize singleton object entry)
• org.springframework.beans.factory.config.ConfigurableListableBeanFactory#preInstantiateSingletons (initialize singleton object entry)
• org.springframework.beans.factory.support.AbstractBeanFactory#getBean(java.lang.String) (The source of all evil, the entrance to obtain and create Bean)
• org.springframework.beans.factory.support.AbstractBeanFactory#doGetBean actual acquisition and creation of Bean)
• org.springframework.beans.factory.support.DefaultSingletonBeanRegistry#getSingleton(java.lang.String) (try to get it from the cache)
• org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory#createBean(java.lang.String, org.springframework.beans.factory.support.RootBeanDefinition, java.lang.Object[]) (Instantiate Bean)
• org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory#doCreateBean (Instantiated Bean concrete realization)
• org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory#createBeanInstance (specific instantiation process)
• org.springframework.beans.factory.support.DefaultSingletonBeanRegistry#addSingletonFactory (Add the instantiated Bean to the third-level cache)
• org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory#populateBean (attribute injection after instantiation)
• org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory#initializeBean(java.lang.String, java.lang.Object, org.springframework.beans.factory.support.RootBeanDefinition) (initialization entry)

When I went to read the blog on the Internet, I found a few better pictures. Post them here for everyone to understand~

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