JavaScriptSerializer.Deserialize()转换为字典

本文关键字：字典 转换 Deserialize JavaScriptSerializer | 更新日期: 2023-09-27 18:24:14

我试图在JSON中解析Open Exchange Rates JSON，我使用的方法是：

HttpWebRequest webRequest = GetWebRequest("http://openexchangerates.org/latest.json");
HttpWebResponse response = (HttpWebResponse)webRequest.GetResponse();
string jsonResponse = string.Empty;
using (StreamReader sr = new StreamReader(response.GetResponseStream()))
{
    jsonResponse = sr.ReadToEnd();
}
var serializer = new JavaScriptSerializer();
CurrencyRateResponse rateResponse = serializer.Deserialize<CurrencyRateResponse>(jsonResponse);

如果我正确理解JavaScriptSerializer.Deserialize，我需要定义和对象来将Json转换为。

我可以使用以下数据类型成功地序列化它：

public class CurrencyRateResponse
{
    public string disclaimer  { get; set; }
    public string license { get; set; }
    public string timestamp { get; set; }
    public string basePrice { get; set; }        
    public CurrencyRates rates { get; set; }
}
public class CurrencyRates
{
    public string AED  { get; set; }    
    public string AFN  { get; set; }    
    public string ALL  { get; set; }    
    public string AMD  { get; set; }  
}

我希望能够用类似的东西重播"CurrencyRates"

public Dictionary<string, decimal> rateDictionary { get; set; }

但是解析器总是将rateDictionary返回为null。你知道这是否可能，或者你有更好的解决方案吗？

编辑：Json看起来是这样的：

{
    "disclaimer": "this is the disclaimer",
    "license": "Data collected from various providers with public-facing APIs",
    "timestamp": 1328880864,
    "base": "USD",
    "rates": {
        "AED": 3.6731,
        "AFN": 49.200001,
        "ALL": 105.589996,
        "AMD": 388.690002,
        "ANG": 1.79
    }
}

JavaScriptSerializer.Deserialize()转换为字典

如果您的json类似于：

{"key":1,"key2":2,...}

那么你应该能够做到：

Dictionary<string, string> rateDict = serializer.Deserialize<Dictionary<string, string>>(json);

这编译：

string json = "{'"key'":1,'"key2'":2}";
var ser = new System.Web.Script.Serialization.JavaScriptSerializer();
var dict = ser.Deserialize<Dictionary<string, int>>(json);

你应该能够从这里自己弄清楚。

此代码适用于您的样本数据

public class CurrencyRateResponse
{
    public string disclaimer { get; set; }
    public string license { get; set; }
    public string timestamp { get; set; }
    public string @base { get; set; }
    public Dictionary<string,decimal> rates { get; set; }
}
JavaScriptSerializer ser = new JavaScriptSerializer();
var obj =  ser.Deserialize<CurrencyRateResponse>(json);
var rate = obj.rates["AMD"];

    Below code will work fine, CurrencyRates is collection so that by using List we can take all reates.
    This should work!!
    public class CurrencyRateResponse
    {
        public string disclaimer  { get; set; }
        public string license { get; set; }
        public string timestamp { get; set; }
        public string basePrice { get; set; }        
        public List<CurrencyRates> rates { get; set; }
    }
    public class CurrencyRates
    {
        public string AED  { get; set; }    
        public string AFN  { get; set; }    
        public string ALL  { get; set; }    
        public string AMD  { get; set; }  
    }
JavaScriptSerializer ser = new JavaScriptSerializer();
var obj =  ser.Deserialize<CurrencyRateResponse>(json);
var rate = obj.rates["AMD"];
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