c# - 如何使用 ServiceStack 增量序列化和反序列化 JSON？

Question

我的是这样的:

string json = @"{'number': 3, 'object' : { 't' : 3, 'whatever' : 'hi', 'str': 'test'}";

如何读取字段直到到达“对象”，然后将整个“对象”序列化为 .NET 类型，然后继续解析？

Answer 1

定义你的类型:

public class Object
{
    public int t { get; set; }
    public string whatever { get; set; }
    public string str { get; set; }
}

public class RootObject
{
    public int number { get; set; }
    public Object object { get; set; }
}

然后反序列化它:

string json = @"{'number': 3, 'object' : { 't' : 3, 'whatever' : 'hi', 'str': 'test'}";
var deserialized = JsonConvert.DeserializeObject<RootObject>(json);
//do what you want

更新

你没说是动态的，这样的解析有很多方案。

检查以下内容:

Using JSON.NET for dynamic JSON parsing

Using C# 4.0 and dynamic to parse JSON

Deserialize JSON into C# dynamic object?

Parse JSON block with dynamic variables

Turning JSON into a ExpandoObject

处理动态类型:使用dynamic，处理XML或JSON等动态数据使用ExpandoObject.

更新 2

Using Anonymous types to deserialize JSON data

更新 3

这对你有用吗:

 string json = "{\"number\": 3, \"object\" : { \"t\" : 3, \"whatever\" : \"hi\", \"str\": \"test\"}}";
            var deserialized = SimpleJson.DeserializeObject<IDictionary<string, object>>(json);

            var yourObject = deserialized["object"] as IDictionary<string, object>;            
            if (yourObject != null)
            {
                var tValue = yourObject.GetValue("t");
                var whateverValue = yourObject.GetValue("whatever");
                var strValue = yourObject.GetValue("str");
            } 

 public static object GetValue(this IDictionary<string,object> yourObject, string propertyName)
        {
            return yourObject.FirstOrDefault(p => p.Key == propertyName).Value;
        }

最终结果:

或者改成下面的

if (yourObject != null)
            {
                foreach (string key in yourObject.Keys)
                {
                    var myValue = yourObject.GetValue(key);
                }
            } 

更新 4 - 服务堆栈

string json = "{\"number\": 3, \"object\" : { \"t\" : 3, \"whatever\" : \"hi\", \"str\": \"test\"}}";
            var deserialized = JsonObject.Parse(json);

            var yourObject = deserialized.Get<IDictionary<string, object>>("object");

            if (yourObject != null)
            {
                foreach (string key in yourObject.Keys)
                {
                    var myValue = yourObject.GetValue(key);
                }
            }

结果: