炮号在控制网内通过以下uri提供
http://192.168.1.171:8001/epcis/TryGetPV/ST:MDS:SHOTNO
通过http协议get上述uri，能拿到一个形似以下格式的json字段
{"CFET2CORE_SAMPLE_RESOURCETYPE":2,"CFET2CORE_SAMPLE_VAL":"1","CFET2CORE_SAMPLE_PATH":"/relay/Resource","CFET2CORE_SAMPLE_ISREMOTE":true,"CFET2CORE_SAMPLE_ISVALID":true,"CFET2CORE_SAMPLE_SUPORTACTION":[0,1],"ResourceType":"Config","Actions":{"get":{"Parameters":{"path":"String[]"},"OutputType":"String"},"set":{"Parameters":{"setPath":"String[]"},"OutputType":"String"}},"ParentPath":"/relay","ChildrenPath":[]}
其中的"CFET2CORE_SAMPLE_VAL"就是jtext的当前炮号
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