我对JSON非常陌生,请帮忙!
我正在尝试将List<KeyValuePair<string, string>>
序列化为JSON。
目前:
Original Answer翻译成"最初的回答"
[{"Key":"MyKey 1","Value":"MyValue 1"},{"Key":"MyKey 2","Value":"MyValue 2"}]
最初的回答
期望结果:
[{"MyKey 1":"MyValue 1"},{"MyKey 2":"MyValue 2"}]
"最初的回答":
我参考了这个例子和这个例子。
这是我的KeyValuePairJsonConverter:JsonConverter。
public class KeyValuePairJsonConverter : JsonConverter
{
public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
List<KeyValuePair<object, object>> list = value as List<KeyValuePair<object, object>>;
writer.WriteStartArray();
foreach (var item in list)
{
writer.WriteStartObject();
writer.WritePropertyName(item.Key.ToString());
writer.WriteValue(item.Value.ToString());
writer.WriteEndObject();
}
writer.WriteEndArray();
}
public override bool CanConvert(Type objectType)
{
return objectType == typeof(List<KeyValuePair<object, object>>);
}
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
var jsonObject = JObject.Load(reader);
var target = Create(objectType, jsonObject);
serializer.Populate(jsonObject.CreateReader(), target);
return target;
}
private object Create(Type objectType, JObject jsonObject)
{
if (FieldExists("Key", jsonObject))
{
return jsonObject["Key"].ToString();
}
if (FieldExists("Value", jsonObject))
{
return jsonObject["Value"].ToString();
}
return null;
}
private bool FieldExists(string fieldName, JObject jsonObject)
{
return jsonObject[fieldName] != null;
}
}
我会在 WebService 方法中这样调用它:
最初的回答:
List<KeyValuePair<string, string>> valuesList = new List<KeyValuePair<string, string>>();
Dictionary<string, string> valuesDict = SomeDictionaryMethod();
foreach(KeyValuePair<string, string> keyValue in valuesDict)
{
valuesList.Add(keyValue);
}
JsonSerializerSettings jsonSettings = new JsonSerializerSettings { Converters = new [] {new KeyValuePairJsonConverter()} };
string valuesJson = JsonConvert.SerializeObject(valuesList, jsonSettings);