package spring;import org.springframework.beans.factory.config.BeanDefinition;import org.springframework.beans.factory.support.BeanDefinitionBuilder;import org.springframework.beans.factory.support.BeanDefinitionRegistry;import org.springframework.beans.factory.support.DefaultListableBeanFactory;import org.springframework.context.ApplicationContext;import org.springframework.context.ConfigurableApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import org.tiger.demohystrixconfig.test.Configer;import org.tiger.demohystrixconfig.test.HystrixCommandServiceImpl;import org.tiger.demohystrixconfig.test.MyException;import org.tiger.demohystrixconfig.test.Service;/** * springApplicationContext工具 */public class SpringBeanRegisterUtil {    private static ApplicationContext context=new            ClassPathXmlApplicationContext("classpath:spring/applicationConfig.xml");    private static ConfigurableApplicationContext configurableContext = (ConfigurableApplicationContext) context;    private static BeanDefinitionRegistry beanDefinitionRegistry = (DefaultListableBeanFactory) configurableContext.getBeanFactory();            static{    	System.out.println("SpringBeanRegisterUtil>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>.");    }    /**     * 注册bean     * @param beanId 所注册bean的id     * @param className bean的className，     *                     三种获取方式：1、直接书写，如：com.mvc.entity.User     *                                   2、User.class.getName     *                                   3.user.getClass().getName()     */    public static void registerBean(String beanId,String className) {        // get the BeanDefinitionBuilder        BeanDefinitionBuilder beanDefinitionBurinilder =        BeanDefinitionBuilder.genericBeanDefinition(className);        // get the BeanDefinition        BeanDefinition beanDefinition=beanDefinitionBurinilder.getBeanDefinition();        // register the bean        beanDefinitionRegistry.registerBeanDefinition(beanId,beanDefinition);    }        /**     * 注册bean     * @param beanId 所注册bean的id     * @param className bean的className，     *                     三种获取方式：1、直接书写，如：com.mvc.entity.User     *                                   2、User.class.getName     *                                   3.user.getClass().getName()     */    public static void registerBean(BeanDefinition beanDefinition,String beanId) {        // get the BeanDefinition        // register the bean        beanDefinitionRegistry.registerBeanDefinition(beanId,beanDefinition);    }        /**     * 移除bean     * @param beanId bean的id     */    public static void unregisterBean(String beanId){        beanDefinitionRegistry.removeBeanDefinition(beanId);    }    /**     * 获取bean     * @param name bean的id     * @param 
    
          * @return     */    public static 
     
       T getBean(String name) {        return (T) context.getBean(name);    }        public static void main(String[] args) {    	System.out.println("===============================================");    	    	Service service = SpringBeanRegisterUtil.getBean("hystrixCommandServiceImpl");		System.out.println("===================="+service);				registerBean("MyException", "org.tiger.demohystrixconfig.test.MyException");				MyException myException = SpringBeanRegisterUtil.getBean("MyException");		System.out.println("===================="+myException.hashCode()+"==========="+myException.config);			 myException = SpringBeanRegisterUtil.getBean("MyException");		System.out.println("===================="+myException.hashCode()+"==========="+myException.config);				Configer.val = "1231aaaa231231231233";								//unregisterBean("MyException");		registerBean("MyException", "org.tiger.demohystrixconfig.test.MyException");						myException = SpringBeanRegisterUtil.getBean("MyException");		System.out.println("===================="+myException.hashCode()+"==========="+myException.config);									}}