c# - 删除使用 DataContractSerializer 序列化的命名空间

Question

我使用 DataContractSerializer 来序列化一个对象。这是我的代码:

private string XmlSerial<T>(T instance)
{
    DataContractSerializer Serializer = new DataContractSerializer(typeof(T));
    using (MemoryStream memoryStream = new MemoryStream())
    {
        Serializer.WriteObject(memoryStream, instance);
        return Encoding.Default.GetString(memoryStream.ToArray());
    }
}

这是我的输出:

<WS_IN_GetAccountCredit xmlns="http://schemas.datacontract.org/2004/07/WcfWebService" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
  <GetAccountCreditParams xmlns:a="http://schemas.datacontract.org/2004/07/RestConsumer">
    <a:Password>String content</a:Password>
    <a:UserName>String content</a:UserName>
  </GetAccountCreditParams>
  <WSIdentity xmlns:a="http://schemas.datacontract.org/2004/07/RestConsumer">
    <a:WS_PassWord>String content</a:WS_PassWord>
    <a:WS_UserName>String content</a:WS_UserName>
  </WSIdentity>
</WS_IN_GetAccountCredit>

我现在需要删除 xmlns:i 和 xmlns:a 并设置 Indent = true;，我该怎么做？

Answer 1

首先，你需要用[DataContract(Namespace = "http://schemas.datacontract.org/2004/07/WcfWebService")]标记你所有的类声明每个类都应该在该命名空间中序列化。完成后，您还必须将每个或属性标记为 [DataMember] 以进行序列化。因为 DataContractSerializer 是选择加入的。

因此:

[DataContract(Namespace = "http://schemas.datacontract.org/2004/07/WcfWebService")]
public class WS_IN_GetAccountCredit
{
    [DataMember]
    public GetAccountCreditParams GetAccountCreditParams { get; set; }
    [DataMember]
    public WSIdentity WSIdentity { get; set; }
}

[DataContract(Namespace = "http://schemas.datacontract.org/2004/07/WcfWebService")]
public class GetAccountCreditParams
{
    [DataMember]
    public string Password { get; set; }
    [DataMember]
    public string UserName { get; set; }
}

[DataContract(Namespace = "http://schemas.datacontract.org/2004/07/WcfWebService")]
public class WSIdentity
{
    [DataMember]
    public string WS_PassWord { get; set; }
    [DataMember]
    public string WS_UserName { get; set; }
}

其次，至于缩进，您可以创建一个 XmlWriterSettings使用所需的缩进，然后创建一个 XmlWriter从它并使用它进行序列化，如以下扩展方法所示:

public static class DataContractSerializerHelper
{
    public static string GetXml<T>(T obj, DataContractSerializer serializer)
    {
        using (var textWriter = new StringWriter())
        {
            var settings = new XmlWriterSettings { Indent = true, IndentChars = "    " };
            using (var xmlWriter = XmlWriter.Create(textWriter, settings))
            {
                serializer.WriteObject(xmlWriter, obj);
            }
            return textWriter.ToString();
        }
    }

    public static string GetXml<T>(T obj)
    {
        var serializer = new DataContractSerializer(typeof(T));
        return GetXml(obj, serializer);
    }
}

第三，关于删除标准命名空间 xmlns:i="http://www.w3.org/2001/XMLSchema-instance" 我不认为这可能直接与 DataContractSerializer。 (XmlSerializer 允许更多控制。)它是无害的，但您可以按照 Avoiding using the “http://www.w3.org/2001/XMLSchema-instance” namespace with .Net DataContractSerializer 中的说明手动删除它。 .