code: public Interceptor[] createServiceInterceptor(Class<?> serviceClass) {
  		Interceptor[] result = serviceClassInters.get(serviceClass);
  		if (result == null) {
  			result = createInterceptor(serviceClass.getAnnotation(Before.class));
  			serviceClassInters.put(serviceClass, result);
  		}
  		return result;
  	}
docs: 缓存业务层 Class 级拦截器