{"bcrScanTime":"2024-05-08 16:00:00","caseNo":"Z{{$guid}}","devNo":"F1RFID01","epcDatas":[{"caseNO":"Z{{$guid}}","epc":"694208184071423006000036","quantity":3},{"caseNO":"Z{{$guid}}","epc":"694208184268823006000109","quantity":3},{"caseNO":"Z{{$guid}}","epc":"694208185579423003000014","quantity":3},{"caseNO":"Z{{$guid}}","epc":"694208184113123004000671","quantity":3},{"caseNO":"Z{{$guid}}","epc":"694208184236723004000576","quantity":3},{"caseNO":"Z{{$guid}}","epc":"694208184148323004000366","quantity":3},{"caseNO":"Z{{$guid}}","epc":"694208184114823004000365","quantity":3},{"caseNO":"Z{{$guid}}","epc":"694208184295423004000080","quantity":3},{"caseNO":"Z{{$guid}}","epc":"694208184267123004000142","quantity":3},{"caseNO":"Z{{$guid}}","epc":"694208185584823004000042","quantity":3},{"caseNO":"Z{{$guid}}","epc":"694208184228223005000423","quantity":3},{"caseNO":"Z{{$guid}}","epc":"694208184165023004000856","quantity":3},{"caseNO":"Z{{$guid}}","epc":"694208184295423004000103","quantity":3},{"caseNO":"Z{{$guid}}","epc":"694208184172823007000400","quantity":3},{"caseNO":"Z{{$guid}}","epc":"694208184267123006000138","quantity":3}],"recvFlag":"1","remark":"","scanTime":"2024-05-08 16:00:00","weighingTime":"2024-05-08 16:00:00","weight":1.1,"wesReceivedWcsTime":"2024-05-08 16:00:00","whseId":"WMWHSE2"}
请求报文如图，我在使用按轮次或者按时长压测时，请求的caseNo都是第一次请求的值。请问如何设置可以使得caseNo对每个进程都是不同的