在C＃中解析Jsonrestapi响应

我试图使用C＃从rest api json响应中提取值。

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); 

在“响应”消息中，我得到了一个json内容如下：

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

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

我正在使用C＃。

Answer 1

1>添加此namspace。 使用Newtonsoft.Json.Linq;

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()); 

Answer 2

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。

第1步：一个很棒的工具 – http://json2csharp.com/ – 它产生的结果如下

第2步： JToken.Parse(...).ToObject() 。

 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 

Answer 3

创建一个映射到Json的C＃类，并使用Newsoft JsonConvert进行反序列化。

例如：

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