Json.Net反序列化返回的Null

问题描述

我正在使用Petfinder API并尝试在我的C#代码中返回一个根对象.我使用了Json类生成器来生成类，但是Deserialize函数返回的是null.

I'm using the Petfinder API and trying to return a root object in my C# code. I used the Json class generator to generate the classes, but the Deserialize function is returning nulls.

这是我的C#代码:

using (var client = new WebClient())
        {
            var json = new WebClient().DownloadString("http://api.petfinder.com/shelter.getPets?format=json&key=<key>&id=<id>");
            Petfinder deserializedPet = JsonConvert.DeserializeObject<Petfinder>(json);

        }

Petfinder对象定义为:

The Petfinder object is defined as:

internal class Petfinder
{

    [JsonProperty("@xmlns:xsi")]
    public string XmlnsXsi { get; set; }

    [JsonProperty("lastOffset")]
    public LastOffset LastOffset { get; set; }

    [JsonProperty("pets")]
    public Pets Pets { get; set; }

    [JsonProperty("header")]
    public Header Header { get; set; }

    [JsonProperty("@xsi:noNamespaceSchemaLocation")]
    public string XsiNoNamespaceSchemaLocation { get; set; }
}

json字符串的前几行如下:

The first few lines of the json string is as follows:

{"@ encoding":"iso-8859-1"，"@ version":"1.0"，"petfinder":{"@ xmlns:xsi":" http://www.w3.org/2001/XMLSchema-instance "，"lastOffset":{"$ t":"25" }，"pets":{"pet":[{"options":{"option":[{"$ t":"hasShots"}，{"$ t":"altered"}，{"$ t" :"housetrained"}]}，品种":{品种":{"$ t":国内中等头发"}}，"shelterPetId":{}，状态":{"$ t":"A }，"名称:{" $ t:"茉莉花}，...

{"@encoding":"iso-8859-1","@version":"1.0","petfinder":{"@xmlns:xsi":"http://www.w3.org/2001/XMLSchema-instance","lastOffset":{"$t":"25"},"pets":{"pet":[{"options":{"option":[{"$t":"hasShots"},{"$t":"altered"},{"$t":"housetrained"}]},"breeds":{"breed":{"$t":"Domestic Medium Hair"}},"shelterPetId":{},"status":{"$t":"A"},"name":{"$t":"Jasmine"},...

如果有帮助的话.

我是json.net的新手.我在做什么错了?

I'm a newbie to json.net. What am I doing wrong?

推荐答案

您的类错误，请查看的输出json2csharp.com 中提供的示例json.显然，__invalid_name_$t需要手动修复，并使用[JsonProperty]进行映射.

Your class is wrong, take a look at the output from json2csharp.com for the example json you provided. Obviously the __invalid_name_$t needs to be manually fixed and the mapped using [JsonProperty].

public class LastOffset
{
    public string __invalid_name__$t { get; set; }
}

public class Option
{
    public string __invalid_name__$t { get; set; }
}

public class Options
{
    public List<Option> option { get; set; }
}

public class Breed
{
    public string __invalid_name__$t { get; set; }
}

public class Breeds
{
    public Breed breed { get; set; }
}

public class ShelterPetId
{
}

public class Status
{
    public string __invalid_name__$t { get; set; }
}

public class Name
{
    public string __invalid_name__$t { get; set; }
}

public class Pet
{
    public Options options { get; set; }
    public Breeds breeds { get; set; }
    public ShelterPetId shelterPetId { get; set; }
    public Status status { get; set; }
    public Name name { get; set; }
}

public class Pets
{
    public List<Pet> pet { get; set; }
}

public class Petfinder
{
    public string __invalid_name__@xmlns:xsi { get; set; }
    public LastOffset lastOffset { get; set; }
    public Pets pets { get; set; }
}

public class RootObject
{
    public string __invalid_name__@encoding { get; set; }
    public string __invalid_name__@version { get; set; }
    public Petfinder petfinder { get; set; }
}

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