code: public static UserInfoList userInfoBatchget(String access_token,String lang,List<String> openids){
  		return userInfoBatchget(access_token, lang, openids,0);
  	}
docs: 批量获取用户基本信息
  @param access_token access_token
  @param lang	zh-CN
  @param openids 最多支持一次拉取100条
  @return UserInfoList