JavaScriptSerializer.Deserialize（）转换成字典 [英] JavaScriptSerializer.Deserialize() into a dictionary

问题描述

我试图解析开放汇率JSON 在JSON和我用这种方式：

 的HttpWebRequest的WebRequest = GetWebRequest（http://openexchangerates.org/latest.json）;

HttpWebResponse响应=（HttpWebResponse）webRequest.GetResponse（）;
字符串jsonResponse =的String.Empty;
使用（StreamReader的SR =新的StreamReader（response.GetResponseStream（）））
{
    jsonResponse = sr.ReadToEnd（）;
}

无功序列化=新JavaScriptSerializer（）;
CurrencyRateResponse rateResponse = serializer.Deserialize＆LT; CurrencyRateResponse＆GT;（jsonResponse）;
 

如果我理解正确JavaScriptSerializer.Deserialize我需要定义和对象将JSON转换成。

我可以使用的数据类型像这样成功的序列化：

 公共类CurrencyRateResponse
{
    公共字符串免责声明{获得;组; }
    公共字符串许可证{获得;组; }
    公共字符串时间戳{获得;组; }
    公共字符串basePrice {获得;组; }
    公共CurrencyRates率{获得;组; }
}

公共类CurrencyRates
{
    公共字符串AED {获得;组; }
    公共字符串AFN {获得;组; }
    公共字符串的所有{获得;组; }
    公共字符串AMD {获得;组; }
}
 

我希望能够重播CurrencyRates率的东西，如：

 公共字典＆LT;字符串，小数＆GT; rateDictionary {获得;组; }
 

但是解析器总是返回rateDictionary为空。任何想法，如果这是可能的，或者你有更好的解决办法？

编辑： 的Json看起来是这样的：

  {
    免责声明：这是声明，
    许可证：数据来自不同供应商提供面向公众的API收集，
    时间戳：1328880864，
    基地：美元，
    利率：{
        AED：3.6731，
        AFN：49.200001，
        ALL：105.589996，
        AMD：388.690002，
        ANG：1.79
    }
}
 

解决方案

这code与您的样本数据。

 公共类CurrencyRateResponse
{
    公共字符串免责声明{获得;组; }
    公共字符串许可证{获得;组; }
    公共字符串时间戳{获得;组; }
    公共字符串@base {获得;组; }
    公共字典＆LT;字符串，小数＆GT;率{获得;组; }
}

JavaScriptSerializer SER =新JavaScriptSerializer（）;
VAR OBJ = ser.Deserialize＆LT; CurrencyRateResponse＆GT;（JSON）;
VAR率= obj.rates [AMD];
 

I am trying to parse Open Exchange Rates JSON in Json, and I'm using this approach:

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);

If I understand the JavaScriptSerializer.Deserialize properly I need to define and object to turn the Json into.

I can successfully serialize it using datatypes like this:

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; }  
} 

I would like to be able to replay "CurrencyRates rates" with something like:

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

but the parser always returns the rateDictionary as null. Any idea if this is possible, or do you have a better solution?

Edit: Json looks like this:

{
    "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
    }
}

解决方案

This code works with your sample data

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"];

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