// 或者直接获取Autowired注入的applicationContext
ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml");
// 将applicationContext转换为ConfigurableApplicationContext
ConfigurableApplicationContext configurableApplicationContext = (ConfigurableApplicationContext) applicationContext;
// 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(ONE_CLASS.class);
// 设置属性值或者引用
beanDefinitionBuilder.addPropertyValue("propertyKey", "propertyValue");
beanDefinitionBuilder.addPropertyReference("propertyKey", "anotherBeanName");
// 注册bean
defaultListableBeanFactory.registerBeanDefinition("beanId",beanDefinitionBuilder.getBeanDefinition());