spring 手动注册bean

//将applicationContext转换为ConfigurableApplicationContext

ConfigurableApplicationContext configurableApplicationContext = (ConfigurableApplicationContext) SpringContextUtil.getApplicationContext();

 

// 获取bean工厂并转换为DefaultListableBeanFactory

DefaultListableBeanFactory defaultListableBeanFactory = (DefaultListableBeanFactory) configurableApplicationContext.getBeanFactory();

 

// 通过BeanDefinitionBuilder创建bean定义

BeanDefinitionBuilder beanDefinitionBuilder = BeanDefinitionBuilder.genericBeanDefinition(UserController. class );

 

// 设置属性userService,此属性引用已经定义的bean:userService,这里userService已经被spring容器管理了.

beanDefinitionBuilder.addPropertyReference( "userService" ,  "userService" );

 

// 注册bean

defaultListableBeanFactory.registerBeanDefinition( "userController" , beanDefinitionBuilder.getRawBeanDefinition());

 

 

UserController userController = (UserController) SpringContextUtil.getBean( "userController" );

 

return  userController.toAction( "动态注册生成调用" );