使用 Newtonsoft 将 JSON 反序列化为 .NET 对象（或者可能使用 LINQ to JSON？）

我知道有一些关于 Newtonsoft 的帖子，所以希望这不是重复...我正在尝试将 Kazaa 的 API 返回的 JSON 数据转换为某种不错的对象

WebClient client = new WebClient();
Stream stream = client.OpenRead("http://api.kazaa.com/api/v1/search.json?q=muse&type=Album");
StreamReader reader = new StreamReader(stream);

List<string> list = Newtonsoft.Json.JsonConvert.DeserializeObject<List<string>>(reader.Read().ToString());

foreach (string item in list)
{
    Console.WriteLine(item);
}

//Console.WriteLine(reader.ReadLine());
stream.Close();

JsonConvert 线只是我最近尝试的一条线...我不太明白，希望通过询问你们来消除一些步法。我最初试图将其转换为字典或其他东西......实际上，我只需要在其中获取几个值，因此根据文档判断，也许 Newtonsoft 的 LINQ to JSON 可能是更好的选择？想法/链接？

以下是 JSON 返回数据的示例：

{
  "page": 1,
  "total_pages": 8,
  "total_entries": 74,
  "q": "muse",
  "albums": [
    {
      "name": "Muse",
      "permalink": "Muse",
      "cover_image_url": "http://image.kazaa.com/images/69/01672812 1569/Yaron_Herman_Trio/Muse/Yaron_Herman_Trio-Muse_1.jpg",
      "id": 93098,
      "artist_name": "Yaron Herman Trio"
    },
    {
      "name": "Muse",
      "permalink": "Muse",
      "cover_image_url": "htt p://image.kazaa.com/images/54/888880301154/Candy_Lo/Muse/Candy_Lo-Muse_1.jpg",
      "i d": 102702,
      "artist_name": "\u76e7\u5de7\u97f3"
    },
    {
      "name": "Absolution",
      "permalink": " Absolution",
      "cover_image_url": "http://image.kazaa.com/images/65/093624873365/Mus e/Absolution/Muse-Absolution_1.jpg",
      "id": 48896,
      "artist_name": "Muse"
    },
    {
      "name": "Ab solution",
      "permalink": "Absolution-2",
      "cover_image_url": "http://image.kazaa.com/i mages/20/825646911820/Muse/Absolution/Muse-Absolution_1.jpg",
      "id": 118573,
      "artist _name": "Muse"
    },
    {
      "name": "Black Holes And Revelations",
      "permalink": "Black-Holes-An d-Revelations",
      "cover_image_url": "http://image.kazaa.com/images/66/093624428466/ Muse/Black_Holes_And_Revelations/Muse-Black_Holes_And_Revelations_1.jpg",
      "id": 48813,
      "artist_name": "Muse"
    },
    {
      "name": "Black Holes And Revelations",
      "permalink": "Bla ck-Holes-And-Revelations-2",
      "cover_image_url": "http://image.kazaa.com/images/86/ 825646911486/Muse/Black_Holes_And_Revelations/Muse-Black_Holes_And_Revelations_1 .jpg",
      "id": 118543,
      "artist_name": "Muse"
    },
    {
      "name": "Origin Of Symmetry",
      "permalink": "Origin-Of-Symmetry",
      "cover_image_url": "http://image.kazaa.com/images/29/825646 912629/Muse/Origin_Of_Symmetry/Muse-Origin_Of_Symmetry_1.jpg",
      "id": 120491,
      "artis t_name": "Muse"
    },
    {
      "name": "Showbiz",
      "permalink": "Showbiz",
      "cover_image_url": "http: //image.kazaa.com/images/68/825646182268/Muse/Showbiz/Muse-Showbiz_1.jpg",
      "id": 60444,
      "artist_name": "Muse"
    },
    {
      "name": "Showbiz",
      "permalink": "Showbiz-2",
      "cover_imag e_url": "http://image.kazaa.com/images/50/825646912650/Muse/Showbiz/Muse-Showbiz_ 1.jpg",
      "id": 118545,
      "artist_name": "Muse"
    },
    {
      "name": "The Resistance",
      "permalink": "T he-Resistance",
      "cover_image_url": "http://image.kazaa.com/images/36/825646864836/ Muse/The_Resistance/Muse-The_Resistance_1.jpg",
      "id": 121171,
      "artist_name": "Muse"
    }
  ],
  "per_page": 10
}

我做了更多阅读，发现 Newtonsoft 的 LINQ to JSON 正是我想要的...使用 WebClient、Stream、StreamReader 和 Newtonsoft...我可以点击 Kazaa 获取 JSON 数据、提取 URL、下载文件，然后执行此操作总共只有七行代码！我喜欢它。

WebClient client = new WebClient();
Stream stream = client.OpenRead("http://api.kazaa.com/api/v1/search.json?q=muse&type=Album");
StreamReader reader = new StreamReader(stream);

Newtonsoft.Json.Linq.JObject jObject = Newtonsoft.Json.Linq.JObject.Parse(reader.ReadLine());

// Instead of WriteLine, 2 or 3 lines of code here using WebClient to download the file
Console.WriteLine((string)jObject["albums"][0]["cover_image_url"]);
stream.Close();

这篇文章获得了如此多的点击，我认为包含评论中讨论的“使用”部分可能会有所帮助。

using(var client = new WebClient())
using(var stream = client.OpenRead("http://api.kazaa.com/api/v1/search.json?q=muse&type=Album"))
using (var reader = new StreamReader(stream))
{
    var jObject = Newtonsoft.Json.Linq.JObject.Parse(reader.ReadLine());
    Console.WriteLine((string) jObject["albums"][0]["cover_image_url"]);
}

您可以使用 C#dynamic键入以使事情变得更容易。这种技术还使重构变得更简单，因为它不依赖魔术字符串。

JSON

下面的 JSON 字符串是来自 HTTP API 调用的简单响应，它定义了两个属性：Id and Name.

{"Id": 1, "Name": "biofractal"}

C#

Use JsonConvert.DeserializeObject<dynamic>()将此字符串反序列化为动态类型，然后只需以通常的方式访问其属性即可。

dynamic results = JsonConvert.DeserializeObject<dynamic>(json);
var id = results.Id;
var name= results.Name;

如果您指定的类型results变量为dynamic，而不是使用var关键字，那么属性值将正确反序列化，例如Id to an int而不是一个JValue（感谢 GFoley83 在下面的评论）。

Note：Newtonsoft 程序集的 NuGet 链接是http://nuget.org/packages/newtonsoft.json http://nuget.org/packages/newtonsoft.json.

Package：您还可以使用 nuget live installer 添加软件包，打开您的项目即可浏览包 https://i.stack.imgur.com/L6y8R.png然后安装它安装、卸载、更新 https://i.stack.imgur.com/1NILT.png，它只会添加到您的项目中的 Dependencies/NuGet 下