在.NET中,有没有一种方法可以将对象序列化而不自动序列化XML名称空间?似乎默认情况下,.NET认为应该包括XSI和XSD命名空间,但我不想要它们。
在.NET中,有没有一种方法可以将对象序列化而不自动序列化XML名称空间?似乎默认情况下,.NET认为应该包括XSI和XSD命名空间,但我不想要它们。
啊...算了。通常是在提出问题后搜索才能得出答案。我正在序列化的对象是obj
,已经被定义。向集合中添加一个带有单个空命名空间的XMLSerializerNamespace即可解决问题。
在VB中如下:
Dim xs As New XmlSerializer(GetType(cEmploymentDetail))
Dim ns As New XmlSerializerNamespaces()
ns.Add("", "")
Dim settings As New XmlWriterSettings()
settings.OmitXmlDeclaration = True
Using ms As New MemoryStream(), _
sw As XmlWriter = XmlWriter.Create(ms, settings), _
sr As New StreamReader(ms)
xs.Serialize(sw, obj, ns)
ms.Position = 0
Console.WriteLine(sr.ReadToEnd())
End Using
在 C# 中像这样:
//Create our own namespaces for the output
XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
//Add an empty namespace and empty value
ns.Add("", "");
//Create the serializer
XmlSerializer slz = new XmlSerializer(someType);
//Serialize the object with our own namespaces (notice the overload)
slz.Serialize(myXmlTextWriter, someObject, ns);
如果你想要去掉额外的xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
和 xmlns:xsd="http://www.w3.org/2001/XMLSchema"
,但仍然保留自己的命名空间 xmlns="http://schemas.YourCompany.com/YourSchema/"
,只需要做出如下简单的修改:
// Add lib namespace with empty prefix
ns.Add("", "http://schemas.YourCompany.com/YourSchema/");
public static string XmlSerialize<T>(T entity) where T : class
{
// removes version
XmlWriterSettings settings = new XmlWriterSettings();
settings.OmitXmlDeclaration = true;
XmlSerializer xsSubmit = new XmlSerializer(typeof(T));
using (StringWriter sw = new StringWriter())
using (XmlWriter writer = XmlWriter.Create(sw, settings))
{
// removes namespace
var xmlns = new XmlSerializerNamespaces();
xmlns.Add(string.Empty, string.Empty);
xsSubmit.Serialize(writer, entity, xmlns);
return sw.ToString(); // Your XML
}
}
StringWriter
默认使用 UTF-16 编码,这可能会导致下游反序列化问题。
using (var reader = XmlReader.Create(stream)){ reader.Read(); }
这会抛出一个异常,因为声明是 UTF-16,而实际内容是以 UTF-8 写入的。 System.Xml.XmlException: 'There is no Unicode byte order mark. Cannot switch to Unicode.'
- Tyler StandishManXmlReader
,您可以使用 var streamReader = new StreamReader(stream, System.Text.Encoding.UTF8, true);
。如果找到 BOM,则 true 将使用它,否则使用您提供的默认值。 - Tyler StandishManpublic static class Xml
{
#region Fields
private static readonly XmlWriterSettings WriterSettings = new XmlWriterSettings {OmitXmlDeclaration = true, Indent = true};
private static readonly XmlSerializerNamespaces Namespaces = new XmlSerializerNamespaces(new[] {new XmlQualifiedName("", "")});
#endregion
#region Methods
public static string Serialize(object obj)
{
if (obj == null)
{
return null;
}
return DoSerialize(obj);
}
private static string DoSerialize(object obj)
{
using (var ms = new MemoryStream())
using (var writer = XmlWriter.Create(ms, WriterSettings))
{
var serializer = new XmlSerializer(obj.GetType());
serializer.Serialize(writer, obj, Namespaces);
return Encoding.UTF8.GetString(ms.ToArray());
}
}
public static T Deserialize<T>(string data)
where T : class
{
if (string.IsNullOrEmpty(data))
{
return null;
}
return DoDeserialize<T>(data);
}
private static T DoDeserialize<T>(string data) where T : class
{
using (var ms = new MemoryStream(Encoding.UTF8.GetBytes(data)))
{
var serializer = new XmlSerializer(typeof (T));
return (T) serializer.Deserialize(ms);
}
}
#endregion
}
:)
new XmlSerializerNamespaces(new[] {XmlQualifiedName.Empty})
而不是new XmlSerializerNamespaces(new[] {new XmlQualifiedName("", "")})
是一种更清晰的编码方式。 - Suncat2000<manyElementWith xmlns="urn:names:specification:schema:xsd:one" />
Dim xmlns = New XmlSerializerNamespaces()
xmlns.Add("one", "urn:names:specification:schema:xsd:one")
xmlns.Add("two", "urn:names:specification:schema:xsd:two")
xmlns.Add("three", "urn:names:specification:schema:xsd:three")
serializer.Serialize(writer, object, xmlns);
<root xmlns:one="urn:names:specification:schema:xsd:one" ... />
<one:Element />
<two:ElementFromAnotherNameSpace /> ...
XmlWriterSettings settings = new XmlWriterSettings
{
OmitXmlDeclaration = true
};
XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
ns.Add("", "");
StringBuilder sb = new StringBuilder();
XmlSerializer xs = new XmlSerializer(typeof(BankingDetails));
using (XmlWriter xw = XmlWriter.Create(sb, settings))
{
xs.Serialize(xw, model, ns);
xw.Flush();
return sb.ToString();
}