spring 动态创建bean

2019-11-06 06:50:20

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//将applicationContext转换为ConfigurableApplicationContext

ConfigurableApplicationContext configurableApplicationContext = (ConfigurableApplicationContext) context;

// 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(UserService.class);

// 设置属性userAcctDAO,此属性引用已经定义的bean:userAcctDAO beanDefinitionBuilder.addPRopertyReference("userDao", "userDao");

beanDefinitionBuilder.addPropertyValue("name", "serviceName");

// 注册bean defaultListableBeanFactory.registerBeanDefinition("myService",beanDefinitionBuilder.getRawBeanDefinition()); UserService us = (UserService) context.getBean("myService");us.test();

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