1：通过spring上下文，获取所有已注解@ActionAnnotation的实现类的BeanName，通过beanName反射获取实例化的实现类对象，通过实例化对象获取实现类注解名称，通过请求参数名称调用不同的实现类ApplicationContext applicationContext = SpringUtil.getApplicationContext(); String[] names = applicationContext.getBeanNamesForAnnotation(ActionAnnotation.class); for (String name : names) { AbstractDoorDataSyncHandler actionBean = (AbstractDoorDataSyncHandler) applicationContext.getBean(name); Class clazz = actionBean.getClass(); @SuppressWarnings(\"unchecked\") Annotation annotation = clazz.getAnnotation(ActionAnnotation.class); ActionAnnotation actionAnnotation = (ActionAnnotation) annotation; if (actionAnnotation.value().equals(beanName)) { actionBean.execute(obj); } }
实现类DoorAuthorityByBuildingEquipAddHandlerImpl
- needPersonDataSync:boolean- personDataSyncRebuilt()
策略模式
（接口）IDoorDataSyncHandler
+ execute()
接口：定义标准模板
实现类DoorAuthorityByBuildingEquipDelHandlerImpl
（抽象类）AbstractDoorDataSyncHandler
+ hook():boolean -勾子方法- extendMethod() -自定义扩展方法- execute() -实现接口- needPersonDataSync:boolean- personDataSyncRebuilt()
抽象类：可定义实现或未实现方法，主要为了重载重写复用
实现类：实现或重写抽象类或接口的方法，只有它能实例化，抽象类接口不行
实现类DoorAuthorityByPersonModifyHandlerImpl
