使用ServiceStack.Text将json字符串反序列化为对象

问题描述

我有一个如下所示的JSON字符串:

I have a JSON string that looks like:

"{\"Id\":\"fb1d17c7298c448cb7b91ab7041e9ff6\",\"Name\":\"John\",\"DateOfBirth\":\"\\/Date(317433600000-0000)\\/\"}"

我正在尝试将其反序列化为object(我正在实现一个缓存接口)

I'm trying to deserialize it to object (I'm implementing a caching interface)

我遇到的麻烦是使用

JsonSerializer.DeserializeFromString<object>(jsonString);

它又回来了

对吗?

我什么都不能断言...我也不能使用dynamic关键字....

I can't assert on anything... I also can't use the dynamic keyword....

是否可以从ServiceStack.Text库返回匿名对象?

Is there a way to return an anonymous object from the ServiceStack.Text library?

推荐答案

使用 JS Utils ServiceStack.Common 中的>是反序列化具有未知类型的即席JSON的首选方法，因为它将基于JSON有效负载返回相关的C#对象，例如，使用以下方法反序列化一个对象:

Using the JS Utils in ServiceStack.Common is the preferred way to deserialize adhoc JSON with unknown types since it will return the relevant C# object based on the JSON payload, e.g deserializing an object with:

var obj = JSON.parse("{\"Id\":\"..\"}");

将返回一个松散类型的Dictionary<string,object>，您可以将该类型强制转换为访问JSON对象动态内容:

Will return a loose-typed Dictionary<string,object> which you can cast to access the JSON object dynamic contents:

if (obj is Dictionary<string,object> dict) {
    var id = (string)dict["Id"];
}

但是，如果您更喜欢使用 ServiceStack.Text 类型的JSON序列化器，则不能反序列化为对象，因为它不知道反序列化为哪种类型，因此将其保留为对象的字符串.

But if you prefer to use ServiceStack.Text typed JSON serializers, it can't deserialize into an object since it doesn't know what type to deserialize into so it leaves it as a string which is an object.

考虑使用 ServiceStack的动态API 来反序列化任意JSON，例如:

Consider using ServiceStack's dynamic APIs to deserialize arbitrary JSON, e.g:

var json = @"{\"Id\":\"fb1d17c7298c448cb7b91ab7041e9ff6\",
          \"Name\":\"John\",\"DateOfBirth\":\"\\/Date(317433600000-0000)\\/\"}";

var obj = JsonObject.Parse(json);
obj.Get<Guid>("Id").ToString().Print();
obj.Get<string>("Name").Print();
obj.Get<DateTime>("DateOfBirth").ToLongDateString().Print();

或解析为动态文件:

dynamic dyn = DynamicJson.Deserialize(json);
string id = dyn.Id;
string name = dyn.Name;
string dob = dyn.DateOfBirth;
"DynamicJson: {0}, {1}, {2}".Print(id, name, dob);

另一种选择是告诉ServiceStack将对象类型转换为字典，例如:

Another option is to tell ServiceStack to convert object types to a Dictionary, e.g:

JsConfig.ConvertObjectTypesIntoStringDictionary = true;
var map = (Dictionary<string, object>)json.FromJson<object>();
map.PrintDump();

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