Question

当我反序列化我的jsonstring时，我收到错误消息

 There was an error deserializing the object of type RecordInfo. End element 'Warning' from namespace '' expected. Found element 'item' from namespace ''.

这是我的JsonString

public const string jsonString = @" 
        {
            ""RequestId"":514106,
            ""Warning"":[],
            ""CustomerData"": {
                ""Email"":""abc@abc.com"",
                ""FullName"":""OrTguOfE"",
                ""OrderData"":[]
            }
        }";

数据合同

[DataContract]
    public class RecordInfo
    {
        [DataMember(Name = "RequestId")]
        public string RequestId { get; set; }

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

        [DataMember(Name = "CustomerData")]
        public CustomerData CustomerData { get; set; }
    }
 [DataContract]
    public class CustomerData
    {
        [DataMember(Name = "Email")]
        public string RequestId { get; set; }

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

        [DataMember(Name = "OrderData")]
        public OrderData[]  OrderData { get; set; }
    }
[DataContract]
    public class OrderData
    {
        [DataMember(Name = "OrderId")]
        public string OrderId { get; set; }

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

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

    [DataContract]
    public class SourceData
    {
        [DataMember(Name = "SourceDescription")]
        public string SourceDescription { get; set; }

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

这是我使用的解串器

private static T Deserialize<T>(string jsonString)
    {
        using (var ms = new MemoryStream(Encoding.Unicode.GetBytes(jsonString)))
        {
            var serializer = new DataContractJsonSerializer(typeof(T));
            return (T)serializer.ReadObject(ms);
        }
    }

当我反序列化bove jsonstring时，我收到错误消息

 There was an error deserializing the object of type RecordInfo. End element 'Warning' from namespace '' expected. Found element 'item' from namespace ''.

有任何解决此错误的建议吗？

Answer 1

设置IsRequired = false，例如：

[DataMember(Name = "RequestId", IsRequired = false)]

MSDN来源：DataMemberAttribute.IsRequired Property

获取或设置一个值，该值指示序列化引擎成员必须在阅读或反序列化时在场。

Answer 2

我发现类似错误的另一个原因是我们将数组类型的Json字段映射到数据协定类的非数组字段。（例如）我的JSON数据就像 -

"ipAddress": [
    "10.61.255.25",
    "fe80:0000:0000:0000:10e1:0b66:96a6:9ac8"
]

但是因为我不知道这种IPAddress数据，所以我将ipaddress映射到

[DataMember(Name="ipAddress")]
public string IPAddress ( get; set; }

相反，它应该是

[DataMember(Name="ipAddress")]
public string[] IPAddress ( get; set; }

错误反序列化类型的对象....结束元素'......'从命名空间''预期。从命名空间''找到元素'item'

2 个答案: