// 把annotation的值作为key
Controller controller = c.getAnnotation(Controller.class);
if (controller != null && controller.value().length() > 0)
ret.add(controller.value());
Component component = c.getAnnotation(Component.class);
if (component != null && component.value().length() > 0)
ret.add(component.value());
Interceptor interceptor = c.getAnnotation(Interceptor.class);
if (interceptor != null && interceptor.value().length() > 0)
ret.add(interceptor.value());
return ret;
}