json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

可以参考一波：https://stackoverflow.com/questions/16573332/jsondecodeerror-expecting-value-line-1-column-1-char-0
1、json格式不对引起的错误
加上​​​if json_rep.content:​​判空操作

json_rep = requests.post(url = monitor_url, 
                    headers = monitor_header,
                    json = request)
if json_rep == None: 
    logging.info(room_name + " json_rep == None")
    return 0
if json_rep.content:
    zhiyan_data = json_rep.json()
    if(zhiyan_data['code'] != 0):
        logging.warning(zhiyan_data['msg'])
        return 0
    elif len(zhiyan_data['data']) == 0:
        logging.warning(zhiyan_data['日志信息拉取无结果'])
        return 0
    else:
        res = zhiyan_data['data']['chart_info'][0]['key_data_list'][3]['current']
        logging.info(room_name + str(res))
        if str(res) == "None":
            logging.warning(room_name + ":拉取zhiyan_data:" + metric_name + " 出现了问题，拉取数据为None")
            return 0
        else:
            return res
else:
    return 0

2、再加上的条件判断，保护免受不符合 HTTP 标准的 URL 的侵害

if (
    response.status_code != 204 and
    response.headers["content-type"].strip().startswith("application/json")
):