javascript JavaScriptSerializer.Deserialize() 成字典
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/9228671/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
JavaScriptSerializer.Deserialize() into a dictionary
提问by iKode
I am trying to parse Open Exchange Rates JSONin Json, and I'm using this approach:
我正在尝试用 Json解析Open Exchange Rates JSON，我正在使用这种方法：
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.
如果我正确理解 JavaScriptSerializer.Deserialize，我需要定义和对象以将 Json 转换为。
I can successfully serialize it using datatypes like this:
我可以使用这样的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; }
}
I would like to be able to replay "CurrencyRates rates" with something like:
我希望能够使用以下内容重播“CurrencyRates rate”：
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?
但解析器总是将 rateDictionary 返回为 null。知道这是否可行，或者您有更好的解决方案吗？
Edit: Json looks like this:
编辑： Json 看起来像这样：
{
"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
}
}
回答by Michal B.
If your json is like:
如果你的 json 是这样的：
{"key":1,"key2":2,...}
then you should be able to do:
那么你应该能够做到：
Dictionary<string, string> rateDict = serializer.Deserialize<Dictionary<string, string>>(json);
This compiles:
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);
You should be able to figure it out yourself from here.
你应该能够从这里自己弄清楚。
回答by L.B
This code works with your sample data
此代码适用于您的示例数据
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"];
回答by Sunil Shrikhande
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"];
