反序列化包含字段和字典的 json 数组

Question

我想创建一个 C# 类来使用 Newtonsoft.Json 反序列化这个 JSON：

[
    {
        "awb": "2205900120010",
        "oras destinatar": "",
        "continut": "",
        "nume confirmare": "",
        "data confirmare": "",
        "ora confirmare": "",
        "awb retur": "",
        "0": {
            "id": 0,
            "status": "AWB-ul nu a fost predat catre FAN Courier",
            "data": "",
            "ora": "",
            "oras": "",
            "traseu": ""
        }
    },
    {
        "awb": "5345899260009",
        "oras destinatar": "Tamaseu",
        "continut": "COMANDA 16201",
        "nume confirmare": "Szilagyi Ileana",
        "data confirmare": "13.12.2018",
        "ora confirmare": "17:16",
        "awb retur": "",
        "0": {
            "id": 1,
            "status": "Expeditie in livrare",
            "data": "12.12.2018",
            "ora": "14:46",
            "oras": "Lugoj",
            "traseu": "Expeditia a fost preluata de catre FAN Courier in data 12.12.2018 14:46."
        },
        "1": {
            "id": 1,
            "status": "Expeditie in livrare",
            "data": "12.12.2018",
            "ora": "19:35",
            "oras": "Lugoj",
            "traseu": "Expeditia a plecat din hub-ul FAN Courier Lugoj spre hub-ul de destinatie in data 12.12.2018 19:35."
        },
        "2": {
            "id": 2,
            "status": "Livrat",
            "data": "13.12.2018",
            "ora": "10:46",
            "oras": "Oradea",
            "traseu": "Expeditia a fost preluata spre livrare de catre curierul din orasul Oradea in data 13.12.2018 10:46."
        },
        "3": {
            "id": 2,
            "status": "Livrat",
            "data": "13.12.2018",
            "ora": "17:16",
            "oras": "Oradea",
            "traseu": "Ultimul status al expeditiei: livrat in data 13.12.2018 17:16."
        }
    }
]

已经尝试反序列化

var list = JsonConvert.DeserializeObject<List<AwbTrackingResponse>>(text);

但Events 仍然为空。

public class AwbTrackingResponse
{
    [JsonProperty("awb")]
    public string Awb { get; set; }
    [JsonProperty("oras destinatar")]
    public string DestinationCity { get; set; }
    [JsonProperty("continut")]
    public string Content { get; set; }
    [JsonProperty("nume confirmare")]
    public string ConfirmedName { get; set; }
    [JsonProperty("data confirmare")]
    public string ConfirmedDate { get; set; }
    [JsonProperty("ora confirmare")]
    public string ConfirmedHour { get; set; }
    [JsonProperty("awb retur")]
    public string AwbReturn { get; set; }
    // ???
    public Dictionary<int, AwbTrackingEvent> Events { get; set; }
}

public class AwbTrackingEvent
{
    [JsonProperty("id")]
    public int Id { get; set; }
    [JsonProperty("status")]
    public string Status { get; set; }
    [JsonProperty("data")]
    public string Date { get; set; }
    [JsonProperty("ora")]
    public string Time { get; set; }
    [JsonProperty("oras")]
    public string City { get; set; }
    [JsonProperty("traseu")]
    public string Route { get; set; }
}

我预计Events 字典也会被填充，但现在它仍然为空。我不确定 Newtonsoft.Json 库是否支持这种类型的反序列化。如果是，那么也许我可以提示我的 C# 类需要更改的内容，如果不是，那么也许我将获得另一种方法来将此 JSON 数据转换为可从 C# 代码中使用。

Answer 1

Json.Net 有一个“Extension Data”功能可以应对这种情况。如果您使用 [JsonExtensionData] 属性标记字典，则该字典将使用 JSON 中未在类中定义属性的键值对填充。问题是，字典必须声明为Dictionary<string, object> 或Dictionary<string, JToken>。既然你想要Dictionary<int, AwbTrackingEvent>，我建议这个想法：

1. 在您的类中定义一个 Dictionary<string, JToken> 类型的私有 EventData 属性，以从 JSON 中捕获额外数据，并使用 [JsonExtensionData] 属性对其进行标记。
2. 更改公共Events 属性以将EventData 字典与Dictionary<int, AwbTrackingEvent> 相互转换。用[JsonIgnore]标记此属性。
3. 然后，像往常一样反序列化，它应该可以按您的意愿工作。

这是它在代码中的样子：

public class AwbTrackingResponse
{
    ...

    [JsonExtensionData]
    private Dictionary<string, JToken> EventData { get; set; }

    [JsonIgnore]
    public Dictionary<int, AwbTrackingEvent> Events
    {
        get
        {
            return EventData?.ToDictionary(
                kvp => Convert.ToInt32(kvp.Key), 
                kvp => kvp.Value.ToObject<AwbTrackingEvent>()
            );
        }
        set
        {
            EventData = value?.ToDictionary(
                kvp => kvp.Key.ToString(),
                kvp => JToken.FromObject(kvp.Value)
            );
        }
    }
}

这是一个工作演示：https://dotnetfiddle.net/Dz9HY0

Answer 2

你的 Json 字符串有一些问题。 首先在你的关键元素中有空格，例如

"data confirmare": "",

这应该是：

"data_confirmare": "",

使用 json2sharp.com 和 jsonlint.com 来整理。 到目前为止，我有以下内容可以帮助您：

[{
    "awb": "2205900120010",
    "events": [{
        "0": {
            "id": 0,
            "status": "AWB-ul nu a fost predat catre FAN Courier"
        }
    }]

},
{
    "awb": "5345899260009",
    "oras_destinatar": "Tamaseu",
    "continut": "COMANDA 16201",
    "nume_confirmare": "Szilagyi Ileana",
    "data_confirmare": "13.12.2018",
    "ora_confirmare": "17:16",
    "awb_retur": "",
    "events": [{
            "0": {
                "id": 1,
                "status": "Expeditie in livrare",
                "data": "12.12.2018",
                "ora": "14:46",
                "oras": "Lugoj",
                "traseu": "Expeditia a fost preluata de catre FAN Courier in data 12.12.2018 14:46."
            }
        },
        {
            "1": {
                "id": 1,
                "status": "Expeditie in livrare",
                "data": "12.12.2018",
                "ora": "19:35",
                "oras": "Lugoj",
                "traseu": "Expeditia a plecat din hub-ul FAN Courier Lugoj spre hub-ul de destinatie in data 12.12.2018 19:35."
            }
        },
        {
            "2": {
                "id": 2,
                "status": "Livrat",
                "data": "13.12.2018",
                "ora": "10:46",
                "oras": "Oradea",
                "traseu": "Expeditia a fost preluata spre livrare de catre curierul din orasul Oradea in data 13.12.2018 10:46."
            }
        },
        {
            "3": {
                "id": 2,
                "status": "Livrat",
                "data": "13.12.2018",
                "ora": "17:16",
                "oras": "Oradea",
                "traseu": "Ultimul status al expeditiei: livrat in data 13.12.2018 17:16."
            }
        }
    ]
}

]