Question

我正在尝试反序列化此JSON

{
"39": {
    "category": "Miscellaneous",
    "country_whitelist": [],
    "name": "domain.com",
    "url_blacklist": [],
    "country_blacklist": [],
    "url_whitelist": [
        "domain.com"
    ],
    "deals": {
        "425215": {
            "status": "Ok",
            "type": "",
            "code": "CODE",
            "end_date": "2014-03-01 04:00:00",
            "title": "RandomTitle",
            "url": "http://domain.com/foo",
            "text": "Text Text Text",
            "long_title": "Longer Text"
        },
        "425216": {
            "status": "Ok",
            "type": "",
            "code": "CODE2",
            "end_date": "2014-03-01 04:00:00",
            "title": "RandomTitle2",
            "url": "http://domain.com/bar",
            "text": "Text Text Text",
            "long_title": "Longer Text"
        }
    },
    "88x31": "http://someimage/88x31.png",
    "subcategory": "Other"
 },
"40": {
    "category": "Miscellaneous",
    "country_whitelist": [],
    "name": "domain.com",
    "url_blacklist": [],
    "country_blacklist": [],
    "url_whitelist": [
        "domain.com"
    ],
    "products": {
        "425215": {
            "status": "Ok",
            "type": "",
            "code": "CODE",
            "end_date": "2014-03-01 04:00:00",
            "title": "RandomTitle",
            "url": "http://domain.com/foo",
            "text": "Text Text Text",
            "long_title": "Longer Text"
        },
        "425216": {
            "status": "Ok",
            "type": "",
            "code": "CODE2",
            "end_date": "2014-03-01 04:00:00",
            "title": "RandomTitle2",
            "url": "http://domain.com/bar",
            "text": "Text Text Text",
            "long_title": "Longer Text"
        }
    },
    "88x31": "http://someimage/88x31.png",
    "subcategory": "Other"
 }
}

我尝试使用Json.NET并尝试使用ServiceStack的反序列化程序，但我似乎无法获得此JSON的任何类型的表示。

阻止我的主要因素是我认为键是Int，但我无法控制我收到的JSON。

这是我建立的C＃类

public class product
{
    public string status { get; set; }
    public string type { get; set; }
    public string code { get; set; }
    public string end_date { get; set; }
    public string title { get; set; }
    public string url { get; set; }
    public string text { get; set; }
    public string long_title { get; set; }
}

public class Merchant
{
    public string category { get; set; }
    public List<string> country_whitelist { get; set; }
    public string name { get; set; }
    public List<string> url_blacklist { get; set; }
    public List<string> country_blacklist { get; set; }
    public List<string> url_whitelist { get; set; }
    public List<product> products { get; set; }
    public string subcategory { get; set; }
}

public class Data
{
    public Dictionary<int, Merchant> MainMerchants { get; set; }
}

我更喜欢使用ServiceStack，但任何其他有效的反序列化器都会很棒

var data = client.Get（json）;

Answer 1

正确映射数据类型：

可以反序列化您的JSON。正确识别后，您可以反序列化为Dictionary<int, Merchant>。

但您需要将products课程中Merchant的定义更改为Dictionary<int, Product>。它需要是一个字典来处理您的数字键。 List<Product>无效。

另外，为了处理88x31属性，您可以使用DataMember(Name = '88x31')映射将其映射到c＃喜欢的内容，例如image88x31。不幸的是，这确实意味着您的DTO属性成为选择加入，因此您需要装饰所有成员。 添加using System.Runtime.Serialization;

完成这些更改后：

// Note I capitalized Product
public class Product
{
    public string status { get; set; }
    public string type { get; set; }
    public string code { get; set; }
    public string end_date { get; set; }
    public string title { get; set; }
    public string url { get; set; }
    public string text { get; set; }
    public string long_title { get; set; }
}

/*
 * Use DataMember to map the keys starting with numbers to an alternative c# compatible name.
 * Unfortunately this requires properties to opt in to the data contract.
 */
[DataContract]
public class Merchant
{
    [DataMember]
    public string category { get; set; }

    [DataMember]
    public List<string> country_whitelist { get; set; }

    [DataMember]
    public string name { get; set; }

    [DataMember]
    public List<string> url_blacklist { get; set; }

    [DataMember]
    public List<string> country_blacklist { get; set; }

    [DataMember]
    public List<string> url_whitelist { get; set; }

    [DataMember]
    public Dictionary<int, Product>  products { get; set; }

    [DataMember]
    public string sub_category { get; set; }

    // This maps the 88x31 key to a c# appropriate name
    [DataMember(Name = "88x31")]
    public string image88x31 { get; set; }
}

然后，您就可以毫无问题地反序列化为Dictionary<int, Merchant>。

JsonSerializer.DeserializeFromString<Dictionary<int, Merchant>>("YOUR JSON STRING");

在ServiceStack服务中使用：

如果您希望能够将此请求直接发送到ServiceStack服务，则可以使用RequestBinder反序列化为此复杂类型。鉴于这项服务：

请求DTO：

[Route("/Merchants", "POST")]
public class MerchantsRequest
{
    public Dictionary<int, Merchant> MainMerchants { get; set; }
}

简单操作方法：

public class MerchantsService : Service
{
    public void Post(MerchantsRequest request)
    {
        var merchant39 = request.MainMerchants.First(p=>p.Key == 39).Value;
        Console.WriteLine("Name: {0}\nImage: {1}\nProduct Count: {2}", merchant39.name, merchant39.image88x31, merchant39.products.Count);

        var merchant40 = request.MainMerchants.First(p=>p.Key == 40).Value;
        Console.WriteLine("Name: {0}\nImage: {1}\nProduct Count: {2}", merchant40.name, merchant40.image88x31, merchant40.products.Count);
    }
}

AppHost配置：

在AppHost Configure方法中，您需要在请求类型中添加绑定器。即typeof(MerchantsRequest)如此：

public override void Configure(Funq.Container container)
{
    Func<IRequest, object> merchantsRequestBinder = delegate(IRequest request) {
        var json = WebUtility.HtmlDecode( request.GetRawBody() );
        return new MerchantsRequest { MainMerchants = JsonSerializer.DeserializeFromString<Dictionary<int, Merchant>>(json) };
    };

    RequestBinders.Add(typeof(MerchantsRequest), merchantsRequestBinder);

    ...
}

此绑定方法会将您发送的json转换为MerchantsRequest。然后，您可以像常规的ServiceStack请求一样使用它。

Full Source Code Here

控制台应用程序的一个完整工作示例，演示了将复杂JSON转换为服务请求。

注：的我发现在你的JSON，你有属性deals一个对象，而products另一个，我以为这是一个错字，因为你不” t在deals的类中有相应的属性。

Answer 2

在你的json字符串中，对于products节点，它应该是这个吗？它转换的类型是List而不是字典？

我可以把它改成跟随json字符串

"products": [{

        "status": "Ok",
        "type": "",
        "code": "CODE",
        "end_date": "2014-03-01 04:00:00",
        "title": "RandomTitle",
        "url": "http://domain.com/foo",
        "text": "Text Text Text",
        "long_title": "Longer Text"
    },
    {
        "status": "Ok",
        "type": "",
        "code": "CODE2",
        "end_date": "2014-03-01 04:00:00",
        "title": "RandomTitle2",
        "url": "http://domain.com/bar",
        "text": "Text Text Text",
        "long_title": "Longer Text"

}],

反序列化在C＃中具有int作为键的JSON

2 个答案:

正确映射数据类型：

在ServiceStack服务中使用：

Full Source Code Here