反序列化为枚举 - ArgumentException：未找到请求的值 'connected'

Question

我正在使用 swagger 生成的以下代码来建立一个模拟 api。尝试将字符串反序列化为枚举时出现错误。

代码：

string exampleJson = null;
exampleJson = "{\n  \"profileDescription\" : \"profileDescription\",\n  \"videoURL\" : \"http://example.com/aeiou\",\n  \"imageURL\" : \"http://example.com/aeiou\",\n  \"imageURLs\" : [ \"http://example.com/aeiou\", \"http://example.com/aeiou\" ],\n  \"name\" : \"name\",\n  \"connectedStatus\" : \"connected\",\n  \"id\" : \"046b6c7f-0b8a-43b9-b35d-6489e6daee91\",\n  \"businessType\" : \"businessType\",\n  \"infoGatherReason\" : \"infoGatherReason\"\n}";

var example = exampleJson != null
? JsonConvert.DeserializeObject<Enterprise>(exampleJson)
: default(Enterprise);

Enterprise.cs:

[DataContract]
public partial class Enterprise : IEquatable<Enterprise>
{ 
    [DataMember(Name="id")]
    public Guid? Id { get; set; }

    [DataMember(Name="name")]
    public string Name { get; set; }

    [DataMember(Name="imageURL")]
    public string ImageURL { get; set; }

    [DataMember(Name="profileDescription")]
    public string ProfileDescription { get; set; }

    [DataMember(Name="infoGatherReason")]
    public string InfoGatherReason { get; set; }

    [DataMember(Name="businessType")]
    public string BusinessType { get; set; }

    public enum ConnectedStatusEnum
    { 
        [EnumMember(Value = "connected")]
        ConnectedEnum = 1,

        [EnumMember(Value = "pending")]
        PendingEnum = 2,

        [EnumMember(Value = "notConnected")]
        NotConnectedEnum = 3
    }

    [DataMember(Name="connectedStatus")]
    public ConnectedStatusEnum? ConnectedStatus { get; set; }

    [DataMember(Name="videoURL")]
    public string VideoURL { get; set; }

    [DataMember(Name="imageURLs")]
    public List<string> ImageURLs { get; set; }
}

错误：

Newtonsoft.Json.JsonSerializationException: 'Error converting value "connected" to type 'System.Nullable`1[CDPSpecDemo.Models.Enterprise+ConnectedStatusEnum]'. Path 'connectedStatus', line 7, position 33.'

Inner Exception

ArgumentException: Requested value 'connected' was not found.

Answer 1

使用 JsonConverterAttribute 标记您的枚举 class 应该有效

[JsonConverter(typeof(StringEnumConverter))]
public enum ConnectedStatusEnum
{ 
    [EnumMember(Value = "connected")]
    ConnectedEnum = 1,

    [EnumMember(Value = "pending")]
    PendingEnum = 2,

    [EnumMember(Value = "notConnected")]
    NotConnectedEnum = 3
}

反序列化为枚举 - ArgumentException：未找到请求的值 'connected'

Deserialising to enum - ArgumentException: Requested value 'connected' was not found

c#

json.net

json-deserialization