使用newtonsoft反序列化json陣列時遇到問題-陣列回傳但所有元素=無

我正在使用 VB.net .Net Framework 4.7.2 中的 VS2019 并使用 Newtonsoft JSON 工具。

我有這個 JSON 示例訊息：

    {
    "status": "ok",
    "items": [
        {
            "node": {
                "id": 5,
                "name": "HUB_SLS",
                "type": "COMPANY",
                "availableForBooking": true,
                "device": false,
                "shortName": "HSLS"
            }
        },
        {
            "node": {
                "id": 6,
                "name": "HQ1",
                "type": "SITE",
                "availableForBooking": true,
                "device": false,
                "shortName": "HQ1"
            }
        },
        {
            "node": {
                "id": 7,
                "name": "Short Term 1",
                "type": "PARKING",
                "availableForBooking": true,
                "device": false,
                "shortName": "ST1"
            }
        },
        {
            "node": {
                "id": 7,
                "name": "Entry 1- Sim",
                "type": "entry_station",
                "device": true,
                "virtualParkingId": 7,
                "shortName": "LESIM"
            }
        },
        {
            "node": {
                "id": 8,
                "name": "LX Sim 2",
                "type": "exit_station",
                "device": true,
                "virtualParkingId": 7,
                "shortName": "LXS2"
            }
        },
        {
            "node": {
                "id": 9,
                "name": "SIM - APS",
                "type": "payment_station",
                "device": true,
                "virtualParkingId": 6,
                "shortName": "SIMAP"
            }
        }
    ]
}

這是我定義的類

Public Class SitesDevices
    Public Property status As String
    Public Property items() As List(Of Node)
End Class
  
Public Class Node
    Public Property id As Integer
    Public Property name As String
    Public Property type As String
    Public Property availableForBooking As Boolean
    Public Property virtualParkingId As Integer
    Public Property device As Boolean
    Public Property shortName As String
End Class

我來自網路呼叫的回應字串看起來不錯，并且包含預期值（3 個陣列元素）

  Dim Response As String = client.DownloadString(myUri)
  Dim LocationInfo As JMSClass.SitesDevices
  LocationInfo = JsonConvert.DeserializeObject(Of JMSClass.SitesDevices)(Response)

"{""status"":""ok"",""items"":[{""node"":{""id"":5,""name"":""HUB_SLS"",""type"":""COMPANY"",""availableForBooking"":true,""device"":false,""shortName"":""HSLS""}},{""node"":{""id"":6,""name"":""HQ1"",""type"":""SITE"",""availableForBooking"":true,""device"":false,""shortName"":""HQ1""}},{""node"":{""id"":7,""name"":""Short Term 1"",""type"":""PARKING"",""availableForBooking"":true,""device"":false,""shortName"":""ST1""}}]}"

當我反序列化字串時，它確實回傳 3 個陣列項，但陣列項中的所有值都是“無”或真或零。

見下圖。

我努力了

Public Property items As Node()
and
Public Property items() As List(Of Node)
and
Public Property items() As NEW List(Of Node)

所有結果都相同。我對處理 JSON 并不陌生，但是，我在這一點上感到困惑，并認為這是非常微妙的事情。

uj5u.com熱心網友回復：

你必須以這種方式定義一個節點類

Public Class SitesDevices
    Public Property status As String
    Public Property items() As List(Of Node)
End Class

Public Class Node
    Public Property node As NodeItem
End Class

Public Class NodeItem
    Public Property id As Integer
    Public Property name As String
    Public Property type As String
    Public Property availableForBooking As Boolean
    Public Property virtualParkingId As Integer
    Public Property device As Boolean
    Public Property shortName As String
End Class

標籤：数组jsonVB.netjson.net反序列化

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