另一种快速简单的半自动这些步骤的方法是:

take the JSON you want to parse and paste it here: https://app.quicktype.io/ . Change language to C# in the drop down. Update the name in the top left to your class name, it defaults to "Welcome". In visual studio go to Website -> Manage Packages and use NuGet to add Json.Net from Newtonsoft. app.quicktype.io generated serialize methods based on Newtonsoft. Alternatively, you can now use code like: WebClient client = new WebClient(); string myJSON = client.DownloadString("https://URL_FOR_JSON.com/JSON_STUFF"); var myClass = Newtonsoft.Json.JsonConvert.DeserializeObject(myJSON);

在c#中将JSON字符串转换为对象。使用下面的测试用例..这对我很管用。这里“MenuInfo”是我的c#类对象。

JsonTextReader reader = null;
try
{
    WebClient webClient = new WebClient();
    JObject result = JObject.Parse(webClient.DownloadString("YOUR URL"));
    reader = new JsonTextReader(new System.IO.StringReader(result.ToString()));
    reader.SupportMultipleContent = true;
}
catch(Exception)
{}

JsonSerializer serializer = new JsonSerializer();
MenuInfo menuInfo = serializer.Deserialize<MenuInfo>(reader);

让我们假设你有一个名为Student的类，它有以下字段，它有一个将JSON作为输入并返回字符串Student Object的方法。我们可以使用JavaScriptSerializer在这里转换JSON字符串到c#对象。std是一个JSON字符串。

  public class Student
{
   public string FirstName {get;set:}
   public string LastName {get;set:}
   public int[] Grades {get;set:}
}

public static Student ConvertToStudent(string std)
{
  var serializer = new JavaScriptSerializer();

  Return serializer.Deserialize<Student>(std);
 }

使用动态对象JavaScriptSerializer。

JavaScriptSerializer serializer = new JavaScriptSerializer(); 
dynamic item = serializer.Deserialize<object>("{ \"test\":\"some data\" }");
string test= item["test"];

//test Result = "some data"

或者，你可以使用System.Text.Json库，如下所示:

using System.Text.Json;
...
var options = new JsonSerializerOptions()
            {
                PropertyNameCaseInsensitive = true
            });
var result = JsonSerializer.Deserialize<List<T>>(json, options);

T是匹配JSON字符串的对象类型。

System.Text.Json可以在: .NET Core 2.0及以上版本 .NET Framework 4.6.1及以上版本

首先，你必须包括这样的库:

using System.Runtime.Serialization.Json;

DataContractJsonSerializer desc = new DataContractJsonSerializer(typeof(BlogSite));
string json = "{\"Description\":\"Share knowledge\",\"Name\":\"zahid\"}";

using (var ms = new MemoryStream(ASCIIEncoding.ASCII.GetBytes(json)))
{
    BlogSite b = (BlogSite)desc.ReadObject(ms);
    Console.WriteLine(b.Name);
    Console.WriteLine(b.Description);
}