docs: public void registerMapper(Class<?> mapperClass) {
          if (!registerMapper.containsKey(mapperClass)) {
              registerClass.add(mapperClass);
              registerMapper.put(mapperClass, fromMapperClass(mapperClass));
          }
          //自动注册继承的接口
          Class<?>[] interfaces = mapperClass.getInterfaces();
          if (interfaces != null && interfaces.length > 0) {
              for (Class<?> anInterface : interfaces) {
                  registerMapper(anInterface);
              }
          }
      }