spring管理bean源码解析

1. 从启动类开始

public static void main(String[] args) {
        // Run the SpringApplication class with the Application class as the first argument
        SpringApplication.run(Application.class, args);
    }

2. bean 实例化

// SpringAplication row=1294
run()
// SpringAplication row=1035
run()
// SpringAplication row=308
refreshContext(context);
//  SpringAplication row=407
refresh(context);
//  SpringAplication row=734
applicationContext.refresh();

// AbstractApplicationContext row=583
finishBeanFactoryInitialization(beanFactory);
// AbstractApplicationContext row=918
beanFactory.preInstantiateSingletons();

// DefaultListableBeanFactory row=922
preInstantiateSingletons();

// AbstractBeanFactory row=207
getBean();
// AbstractBeanFactory row=248
goGetBean()
// AbstractAutowareCapableBeanFactory row=503
createBean()

3. bean 依赖注入

// SpringAplication row=1294
run()
// SpringAplication row=1035
run()
// SpringAplication row=308
refreshContext(context);
//  SpringAplication row=407
refresh(context);
//  SpringAplication row=734
applicationContext.refresh();

// AbstractApplicationContext row=583
finishBeanFactoryInitialization(beanFactory);

4. 删除实例及其依赖实例

// DefaultSingletonBeanRegistry row=550
destroySingleton()
// DefaultSingletonBeanRegistry row=568
destroyBean()
// AbstractFactoryBean row=197
destroy()