在C＃中解析JSON数据 [英] Parsing JSON data in C#

问题描述

我有一个JSON数据如下：

I have a JSON data as follows

 {"id": "367501354973","from": {
  "name": "Bret Taylor",
  "id": "220439"   }

这是由一个对象（结果）的IDictionary [字符串，对象]

which is returned by an object(result) of IDictionary[String, Object]

的 在我的C＃代码，返回：的

In my C# code:

我已经做了的类用于存储JSON值这是如下：

I have made a class for storing the JSON value which is as follows

public class SContent
{
    public string id { get; set; }
    public string from_name { get; set; }
    public string from_id { get; set; }
}

我的存储的解析JSON数据主要的C＃功能存储类属性里面的值如下：

List<object> data = (List<object>)result["data"];
            foreach (IDictionary<string, object> content in data)
            {
                SContent s = new SContent();

                    s.id = (string)content["id"];
                    s.from_name = (string)content["from.name"];
                    s.from_id = (string)content["from.id"];

            }

的当我执行这个代码，我得到一个例外说的系统找不到钥匙from.name和from.id的

When i execute this code, i get an exception saying System cannot find the Key "from.name" and "from.id"

在我的评论两行（s.from_name =（串）的含量[from.name]; s.from_id =（串）的含量[from.id];）我的代码运行正常<。 / STRONG>

When i comment the two lines (s.from_name = (string)content["from.name"];s.from_id = (string)content["from.id"];) my code runs fine.

我想我不能够正确地引用嵌套的JSON数据。

任何人都只是验证它，请告诉我如何引用嵌套数据的JSON在C＃？

感谢

推荐答案

我不知道你是如何解析JSON字符串。您是否使用了类框架做反序列化？

I'm not sure how you are parsing the JSON string. Are you using a class in the Framework to do the deserialization?

您可以使用在定义的的JavaScriptSerializer 类 System.Web.Script.Serialization 命名空间（您可能需要添加到System.Web.dll程序的引用）

You could use the JavaScriptSerializer Class defined in the System.Web.Script.Serialization Namespace (you may need to add a reference to System.Web.dll)

使用这个类，你会写你这样的代码：

Using that class, you would write your code like this:

public class SContent
{
    public string id { get; set; }
    public SFrom from { get; set; }
}

public class SFrom 
{
    public string name { get; set; }
    public string id { get; set; }
}

然后反序列化看起来是这样的：

Then deserialization looks like this:

var json = new JavaScriptSerializer();
var result = json.Deserialize<SContent>(/*...json text or stream...*/);

请参阅的的JavaScriptSerializer MSDN上。您可能还需要检查出这种类似的问题。

See JavaScriptSerializer on MSDN. You might also want to check out this similar question.

这篇关于在C＃中解析JSON数据的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！