spring 手动注册bean

佚名 6年前 (2019-05-14) 随笔 1324人围观抢沙发百度已收录

//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" );