c# - 从 json 中反序列化 Dictionary，可能没有 Newtonsoft.Json？

Question

帮我反序列化 Dictionary 对象。

例如我有我的课

[Serializable]
public class MyClass
{
    /// <summary>
    /// some class variables
    /// </summary>
    public string variable_A;

    public decimal variable_B;

    /// <summary>
    /// constructor for example
    /// </summary>
    public MyClass(string s, decimal d)
    {
        variable_A = s;
        variable_B = d;
    }
}

然后我创建了字典——以字符串为键，以 MyClass 对象为值:

Dictionary<string, MyClass> myDictionary = new Dictionary<string, MyClass>
{
    { "key1", new MyClass("some string value", 5) },
    { "key2", new MyClass("some string value", 3) },
    { "key3", new MyClass("some string value", 10) }
};

这里我序列化这些数据以传输到其他地方:

        string myObjectJson = new JavaScriptSerializer().Serialize(myDictionary);
        Console.WriteLine(myObjectJson);

但是我该如何进行反向操作 - 将此数据反序列化回我的 Dictionary 对象？

我试过像这样使用 DeserializeObject:

    JavaScriptSerializer js = new JavaScriptSerializer();
    Dictionary<string, MyClass> dict = (Dictionary<string, Object>)js.DeserializeObject(myObjectJson);


        //// Also tried this method, but it describes deserialize to Dictionary<string, string>, but I have my object in value, not string
        //// http://stackoverflow.com/questions/4942624/how-to-convert-dictionarystring-object-to-dictionarystring-string-in-c-sha

        //// p.s.: don't want to use third-party dll's, like Json.Net 
        //// http://stackoverflow.com/questions/19023696/deserialize-dictionarystring-t

Answer 1

您应该使用通用重载:

var dict = new JavaScriptSerializer().Deserialize<Dictionary<string, MyClass>>(myObjectJson);

还要确保 MyClass 类型具有默认构造函数。