code: public void setMapperProperties(String[] properties) {
          if (mapperHelper == null) {
              mapperHelper = new MapperHelper();
          }
          Properties props = new Properties();
          for (String property : properties) {
              property = property.trim();
              int index = property.indexOf("=");
              if(index < 0){
                  throw new MapperException("通过 @MapperScan 注解的 properties 参数配置出错:" + property + " !\n"
                          + "请保证配置项按 properties 文件格式要求进行配置，例如：\n"
                          + "properties = {\n"
                          + "\t\"mappers=tk.mybatis.mapper.common.Mapper\",\n"
                          + "\t\"notEmpty=true\"\n"
                          + "}"
                  );
              }
              props.put(property.substring(0, index).trim(), property.substring(index + 1).trim());
          }
          mapperHelper.setProperties(props);
      }
docs: 从 properties 数组获取 mapper 配置信息
  
  @param properties