fix for allocate resource demo

{
    "serviceOrderId": 18,
    "plannedVolume": 3,
    "mixingPlantResource": {
        "mixingPlantResourceId": 1,
        "mixingPlantResourcePlannedVolume": 3000,
        "mixingPlantResourceFinishedVolume": 300,
        "mixingPlantId": 1,
        "mixingPlantName": "??????",
        "mixingPlantPinyinAbbrName": "dshjbz"
    },
    "truckResource": {
        "concreteTruckResourceId": 1,
        "truckId": 1,
        "truckLicencePlatNumber": "?A001",
        "truckRatedCapacity": 30
    },
    "spec": {
        "mixtureType": "Mortar",
        "pouringParSpectId": 1,
        "pouringPartId": 1,
        "pouringPartName": "??????",
        "pouringPartAbbrName": "wcyxlb",
        "unitProjectId": 1,
        "unitProjectName": "????16??",
        "mixtureId": 1,
        "mixtureGradeName": "M2.5",
        "additives": []
    }
}