C# -如何解析json

Question

我有一个如下的json字符串

string json = "{\"Method\":\"LOGIN\",\"Skill\":{\"1\":\"SKILL-1\",\"2\":\"SKILL-2\"}}";

我正在使用JavaScriptSerializer来解析json

System.Web.Script.Serialization.JavaScriptSerializer oSerializer = 
                               new System.Web.Script.Serialization.JavaScriptSerializer();
var dict = oSerializer.Deserialize<Dictionary<string,object>>(json);

我使用以下代码行获取Method = LOGIN

MessageBox.Show("Method = "+dict["Method"].ToString());

而是如何在循环中获得技能。喜欢

技能

1 = SKILL-1
2 = SKILL-2

Answer 1

你应该声明你自己的类：

public class YourClassName
{
    public string Method { get; set; }
    public Dictionary<int, string> Skill { get; set; }
}

并像这样反序列化Json字符串：

var obj = oSerializer.Deserialize<YourClassName>(json);

Answer 2

映射到Skill键的值实际上是另一个Dictionary<string, object>。您可以通过将object类型转换为

string json = "{\"Method\":\"LOGIN\",\"Skill\":{\"1\":\"SKILL-1\",\"2\":\"SKILL-2\"}}";

var oSerializer = new JavaScriptSerializer();
var dict = oSerializer.Deserialize<Dictionary<string,object>>(json);

var innerDict = dict["Skill"] as Dictionary<string, object>;

if (innerDict != null)
{
   foreach (var kvp in innerDict)
   {
       Console.WriteLine ("{0} = {1}", kvp.Key, kvp.Value);
   }
}

或者，另一种方法是将对象映射到适当的class并反序列化到它，而不是通用的Dictionary<string, object>。

Answer 3

假设你有如下的类

public class Data
{
     public string Method { get; set; }
     public Skills Skill { get; set; }
     // If you don't want to use Skills class then you can use this
     //public Dictionary<int, string> Skills { get; set; }
}
public class Skills
{
     public int Id { get; set; }
     public string Skill { get; set; }
}

因此您可以将json反序列化为Data对象，如下所示

Data deserializedData = JsonConvert.DeserializeObject<Data>(json);