spring 手動注冊bean

//將applicationContext轉換為ConfigurableApplicationContext
ConfigurableApplicationContext configurableApplicationContext = (ConfigurableApplicationContext) SpringContextUtil.getApplicationContext();

// 獲取bean工廠並轉換為DefaultListableBeanFactory
DefaultListableBeanFactory defaultListableBeanFactory = (DefaultListableBeanFactory) configurableApplicationContext.getBeanFactory();

// 通過BeanDefinitionBuilder創建bean定義
BeanDefinitionBuilder beanDefinitionBuilder = BeanDefinitionBuilder.genericBeanDefinition(UserController.class);

// 設置屬性userService,此屬性引用已經定義的bean:userService,這里userService已經被spring容器管理了.
beanDefinitionBuilder.addPropertyReference("userService", "userService");

// 注冊bean
defaultListableBeanFactory.registerBeanDefinition("userController", beanDefinitionBuilder.getRawBeanDefinition());


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

return userController.toAction("動態注冊生成調用");