javascript - 使用Json.Net将javascript关联数组反序列化为C#字典

我用JSON.stringify()将带有布尔值的整数键的javascript关联数组存储在cookie中，例如var arr = {}; arr[9000001] = True;。我可以在服务器上以以下格式查看字符串的值：%7B%229000001%22%3Atrue%2C%229000003%22%3Atrue%2C%229000006%22%3Atrue%2C%229000009%22%3Atrue%7D其中第一个数字为9000001，第二个为9000003，依此类推。

我想使用Json.Net反序列化为Dictionary<long,bool>或类似名称。我尝试以下

var result = JsonConvert.DeserializeObject<Dictionary<string, string>>(cookieValue);

但得到以下异常

{"Unexpected character encountered while parsing value: %. Path '', line 0, position 0."}

我猜在这种情况下不可能进行反序列化？

最佳答案

弗里斯·范·坎彭（Frits van Campen）找到了失踪的一块。我编写了以下扩展方法，使在C＃中检索cookie值变得容易。将urlDecode和fromJson都设置为true，对象将成功反序列化。

/// <summary>
/// retrieve object from cookie
/// </summary>
/// <typeparam name="T">type of object</typeparam>
/// <param name="controller"></param>
/// <param name="cookieName">name of cookie</param>
/// <param name="urlDecode">true to enable url decoding of the string</param>
/// <param name="fromJson">true if the string in cookie is Json stringified</param>
/// <returns>object in the cookie, or default value of T if object does not exist</returns>
public static T GetFromCookie<T>(this Controller controller, string cookieName,
                                 bool urlDecode = true, bool fromJson = false)
{
    var cookie = controller.HttpContext.Request.Cookies[cookieName];
    if (cookie == null) return default(T);
    var value = cookie.Value;

    if (urlDecode)
        value = Uri.UnescapeDataString(value);

    T result;
    if (fromJson)
        result = JsonConvert.DeserializeObject<T>(value);
    else
        result = (T)Convert.ChangeType(value, typeof(T));

    return result;
}