在 C# 中解析 Json rest api 响应

Parsing Json rest api response in C#

提问by Chehmer

I am trying to pull a value from a rest api json response using C#.

我正在尝试使用 C# 从 rest api json 响应中提取一个值。

I have the following code:

我有以下代码：

client.BaseUrl = "https://api.cloud.appcelerator.com";
request.Resource = "/v1/chats/create.json?key=" + cac.AppCode.ToString();
request.Method = Method.POST;
request.AddUrlSegment("appkey", "key");
var response = client.Execute(request);

In the "response" message I got a json content as follows:

在“响应”消息中，我得到了一个 json 内容，如下所示：

{
  "meta": {
    "code": 200,
    "status": "ok",
    "method_name": "createChatMessage"
  },
  "response": {
    "chats": [
      {
        "id": "521cfcd840926a0b3500449e",
        "created_at": "2013-08-27T19:24:08+0000",
        "updated_at": "2013-08-27T19:24:08+0000",
        "message": " join to the chat group, welcome …",
        "from": {
          "id": "520f41e125e74b0b2400130a",
          "first_name": "Administrator",
          "created_at": "2013-08-17T09:26:57+0000",
          "updated_at": "2013-08-27T19:23:10+0000",
          "external_accounts": [

          ],
          "email": "[email protected]",
          "confirmed_at": "2013-08-17T09:26:57+0000",
          "username": "admin",
          "admin": "true",
          "stats": {
            "photos": {
              "total_count": 0
            },
            "storage": {
              "used": 0
            }
          }
        },
        "chat_group": {
          "id": "521cfcd840926a0b3500449d",
          "created_at": "2013-08-27T19:24:08+0000",
          "updated_at": "2013-08-27T19:24:08+0000",
          "message": " join to the chat group, welcome …",
          "participate_users": [
            {
              "id": "520f41e125e74b0b2400130a",
              "first_name": "Administrator",
              "created_at": "2013-08-17T09:26:57+0000",
              "updated_at": "2013-08-27T19:23:10+0000",
              "external_accounts": [

              ],
              "email": "[email protected]",
              "confirmed_at": "2013-08-17T09:26:57+0000",
              "username": "admin",
              "admin": "true",
              "stats": {
                "photos": {
                  "total_count": 0
                },
                "storage": {
                  "used": 0
                }
              }
            }
          ]
        }
      }
    ]
  }
}

How do I pull the following nested value of "id": "521cfcd840926a0b3500449e" from the returned json response result message?

如何从返回的 json 响应结果消息中提取“id”的以下嵌套值：“521cfcd840926a0b3500449e”？

I am using C#.

我正在使用 C#。

采纳答案by Ravsaheb

1> Add this namspace. using Newtonsoft.Json.Linq;

1> 添加这个命名空间。使用 Newtonsoft.Json.Linq；

2> use this source code.

2> 使用此源代码。

JObject joResponse = JObject.Parse(response);                   
JObject ojObject = (JObject)joResponse["response"];
JArray array= (JArray)ojObject ["chats"];
int id = Convert.ToInt32(array[0].toString());

回答by Sam Leach

Create a C# class that maps to your Json and use Newsoft JsonConvertto Deserialise it.

创建一个映射到您的 Json 的 C# 类并用于Newsoft JsonConvert反序列化它。

For example:

例如：

public Class MyResponse
{
    public Meta Meta { get; set; }
    public Response Response { get; set; }
}

回答by Timothy Shields

1. Create classes that match your data,
2. then use JSON.NET to convert the JSON data to regular C# objects.

1. 创建与您的数据匹配的类，
2. 然后使用 JSON.NET 将 JSON 数据转换为常规 C# 对象。

Step 1: a great tool - http://json2csharp.com/- the results generated by it are below

第 1 步：一个很棒的工具 - http://json2csharp.com/- 它生成的结果如下

Step 2: JToken.Parse(...).ToObject<RootObject>().

第 2 步：JToken.Parse(...).ToObject<RootObject>()。

public class Meta
{
    public int code { get; set; }
    public string status { get; set; }
    public string method_name { get; set; }
}

public class Photos
{
    public int total_count { get; set; }
}

public class Storage
{
    public int used { get; set; }
}

public class Stats
{
    public Photos photos { get; set; }
    public Storage storage { get; set; }
}

public class From
{
    public string id { get; set; }
    public string first_name { get; set; }
    public string created_at { get; set; }
    public string updated_at { get; set; }
    public List<object> external_accounts { get; set; }
    public string email { get; set; }
    public string confirmed_at { get; set; }
    public string username { get; set; }
    public string admin { get; set; }
    public Stats stats { get; set; }
}

public class ParticipateUser
{
    public string id { get; set; }
    public string first_name { get; set; }
    public string created_at { get; set; }
    public string updated_at { get; set; }
    public List<object> external_accounts { get; set; }
    public string email { get; set; }
    public string confirmed_at { get; set; }
    public string username { get; set; }
    public string admin { get; set; }
    public Stats stats { get; set; }
}

public class ChatGroup
{
    public string id { get; set; }
    public string created_at { get; set; }
    public string updated_at { get; set; }
    public string message { get; set; }
    public List<ParticipateUser> participate_users { get; set; }
}

public class Chat
{
    public string id { get; set; }
    public string created_at { get; set; }
    public string updated_at { get; set; }
    public string message { get; set; }
    public From from { get; set; }
    public ChatGroup chat_group { get; set; }
}

public class Response
{
    public List<Chat> chats { get; set; }
}

public class RootObject
{
    public Meta meta { get; set; }
    public Response response { get; set; }
}