我有一个相对简单的嵌套JSON字符串,用于以下数据:
{ "d" : {
"humidity": "39.21",
"acc_y": "1.21",
"ambient_temp": "24.21",
"air_pressure": "1029.21",
"object_temp": "23.21",
"acc_z": "0.21",
"acc_x": "3.21",
}
}
我有一个c#windows服务应用程序,它接收JSON字符串和Deserialize字符串。
private static void client_MqttMsgPublishReceived(object sender, uPLibrary.Networking.M2Mqtt.Messages.MqttMsgPublishEventArgs e)
{
//Console.WriteLine(System.Text.Encoding.Default.GetString(e.Message));
string json = System.Text.Encoding.Default.GetString(e.Message);
var obj = JsonConvert.DeserializeObject<IDictionary<string, object>>(json, new JsonConverter[] { new MyConverter() });
}
我有一个看起来像这样的Myconvert类,它读取JSON:
class MyConverter : CustomCreationConverter<IDictionary<string, object>>
{
public override IDictionary<string, object> Create(Type objectType)
{
return new Dictionary<string, object>();
}
public override bool CanConvert(Type objectType)
{
// in addition to handling IDictionary<string, object>
// we want to handle the deserialization of dict value
// which is of type object
return objectType == typeof(object) || base.CanConvert(objectType);
}
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
if (reader.TokenType == JsonToken.StartObject
|| reader.TokenType == JsonToken.Null)
return base.ReadJson(reader, objectType, existingValue, serializer);
// if the next token is not an object
// then fall back on standard deserializer (strings, numbers etc.)
return serializer.Deserialize(reader);
}
}
我可以在obj对象的调试窗口中看到JSON数据。
这可能是一个非常直截了当的问题,如何提取我的程序中使用的JSON键值对数据(例如,湿度,环境温度),因为目前我只能在调试窗口中看到它们?
感谢您的帮助!
答案 0 :(得分:2)
您实际上并不需要转换器来反序列化此JSON。一个简单的包装器类就可以了:
class Wrapper
{
public Dictionary<string, object> d { get; set; }
}
然后:
Dictionary<string, object> obj = JsonConvert.DeserializeObject<Wrapper>(json).d;