code: public static void registerSimpleType(String classes){
          if(StringUtil.isNotEmpty(classes)){
              String[] cls = classes.split(",");
              for (String c : cls) {
                  try {
                      SIMPLE_TYPE_SET.add(Class.forName(c));
                  } catch (ClassNotFoundException e) {
                      throw new MapperException("注册类型出错:" + c, e);
                  }
              }
          }
      }
docs: 注册新的类型
  
  @param classes