我现在发现，请求时参数is_req_fa_info为0时，可以正常返回数据，如果参数is_req_fa_info为1要求返回人脸base64数据时，就不能返回数据，收到WebSocket的关闭消息，连接被中断； 1.参数is_req_fa_info为0，设备号3131501225，请求时间2021-03-17 19:11:41.113 请求：{"headers":{"req_id":"569641157965905922"},"cmd":"get_userinfo_by_ids","body":{"user_item":[{"user_type":0,"userid":"jzj"}],"is_req_fp_info":0,"is_req_public_key":0,"is_req_fa_info":0}} 响应：{"headers":{"req_id":"569641157965905922"},"body":{"userinfo":[{"userid":"jzj","fp":[],"name":"姜志军3","fa_list":[],"user_type":0,"pass_rule_list":[],"fa_ver":1}]},"errcode":0,"errmsg":"ok"} 2.参数is_req_fa_info为1，设备号3131501225，请求时间2021-03-17 19:11:41.212 请求：{"headers":{"req_id":"569641158385336321"},"cmd":"get_userinfo_by_ids","body":{"user_item":[{"user_type":0,"userid":"jzj"}],"is_req_fp_info":0,"is_req_public_key":0,"is_req_fa_info":1}}