rfid读方法优化

WebStarter/Controllers/RfidController.cs

@@ -35,8 +35,12 @@ public class RfidController : ControllerBase
     [Route("ReadRfid")]
     public async Task<Result<RfidReadModel>> ReadRfid()
     {
-        RfidReadModel? rfidReadModel = await RfidApi.ReadRfid();
+        bool beginRead = await RfidApi.BeginRead();
-        if (rfidReadModel != null) return Result<RfidReadModel>.Success(rfidReadModel, "读取成功");
+        if (beginRead)
+        {
+            RfidReadModel? rfidReadModel = await RfidApi.ReadRfid();
+            if (rfidReadModel != null) return Result<RfidReadModel>.Success(rfidReadModel, "读取成功"); 
+        }
         return Result<RfidReadModel>.Fail();
     }
 }