我有几个扩展方法来处理我的类的序列化,因为它可能是一个耗时的过程,它们每个类创建一次,并通过此方法分发。
public static XmlSerializer GetSerializerFor(Type typeOfT)
{
if (!serializers.ContainsKey(typeOfT))
{
var xmlAttributes = new XmlAttributes();
var xmlAttributeOverrides = new XmlAttributeOverrides();
System.Diagnostics.Debug.WriteLine(string.Format("XmlSerializerFactory.GetSerializerFor(typeof({0}));", typeOfT));
xmlAttributes.Xmlns = false;
xmlAttributeOverrides.Add(typeOfT, xmlAttributes);
var newSerializer = new XmlSerializer(typeOfT, xmlAttributeOverrides);
serializers.Add(typeOfT, newSerializer);
}
return serializers[typeOfT];
}
这是通过扩展方法.Serialize()
调用的public static XElement Serialize(this object source)
{
try
{
var serializer = XmlSerializerFactory.GetSerializerFor(source.GetType());
var xdoc = new XDocument();
using (var writer = xdoc.CreateWriter())
{
serializer.Serialize(writer, source, new XmlSerializerNamespaces(new[] { new XmlQualifiedName("", "") }));
}
return (xdoc.Document != null) ? xdoc.Document.Root : new XElement("Error", "Document Missing");
}
catch (Exception x)
{
return new XElement("Error", x.ToString());
}
}
不幸的是,在序列化自动生成的类时,它们会应用属性XmlTypeAttribute(Namespace="http://tempuri.org/")
。
这会导致非自动生成的对应项的反序列化失败。
我需要序列化程序完全忽略而不应用命名空间,但是我在第一段代码中编写的内容似乎没有删除它,我仍然最终得到像这样的xml
<Note>
<ID xmlns="http://tempuri.org/">12</ID>
<Author xmlns="http://tempuri.org/">
<ID>1234</ID>
<Type>Associate</Type>
<IsAvailable>false</IsAvailable>
</Author>
<Created xmlns="http://tempuri.org/">2010-06-22T09:38:01.5024351-05:00</Created>
<Text xmlns="http://tempuri.org/">This is an update</Text>
</Note>
而不是相同,减去xmlns="http://tempuri.org/"
属性。
请帮助,谢谢,这让我发疯了!
编辑:
我知道问题,而不是如何修复它。
我的班级,不仅仅是简单的类型。
它包含具有其他类类型的属性。哪些也是使用XmlTypeAttribute(Namespace = "http://tempuri.org/")
属性自动生成的。所以正在发生的事情是,当序列化发生时,它序列化我的类的属性,它们不会通过我的自定义序列化,因此,应用了属性而不是覆盖。
现在我只需要弄清楚如何跳过那个篮圈。有关如何的任何想法?
编辑2:
以下工作序列化WITHOUT xmlns ...但我在反序列化结束时遇到问题,只是还不确定它是否相关
public static XmlSerializer GetSerializerFor(Type typeOfT)
{
if (!serializers.ContainsKey(typeOfT))
{
var xmlAttributes = new XmlAttributes();
var xmlAttributeOverrides = new XmlAttributeOverrides();
System.Diagnostics.Debug.WriteLine(string.Format("XmlSerializerFactory.GetSerializerFor(typeof({0}));", typeOfT));
xmlAttributes.XmlType = new XmlTypeAttribute
{
Namespace = ""
};
xmlAttributes.Xmlns = false;
var types = new List<Type> {typeOfT, typeOfT.BaseType};
foreach (var property in typeOfT.GetProperties())
{
types.Add(property.PropertyType);
}
types.RemoveAll(t => t.ToString().StartsWith("System."));
foreach (var type in types)
{
xmlAttributeOverrides.Add(type, xmlAttributes);
}
var newSerializer = new XmlSerializer(typeOfT, xmlAttributeOverrides);
//var newSerializer = new XmlSerializer(typeOfT, xmlAttributeOverrides, extraTypes.ToArray(), new XmlRootAttribute(), string.Empty);
//var newSerializer = new XmlSerializer(typeOfT, string.Empty);
serializers.Add(typeOfT, newSerializer);
}
return serializers[typeOfT];
}
EDIT3: 结束使用解决方案 How to remove all namespaces from XML with C#?
public static XElement RemoveAllNamespaces(this XElement source)
{
return !source.HasElements
? new XElement(source.Name.LocalName)
{
Value = source.Value
}
: new XElement(source.Name.LocalName, source.Elements().Select(el => RemoveAllNamespaces(el)));
}
答案 0 :(得分:48)
一个有效的解决方案,用于记录!
var ns = new XmlSerializerNamespaces();
ns.Add("", "");
var serializer = new XmlSerializer(yourType);
serializer.Serialize(xmlTextWriter, someObject, ns);
答案 1 :(得分:3)
没问题 - 只需将空字符串作为默认名称空间传递给XML序列化程序:
XmlSerializer newSerializer =
new XmlSerializer(typeOfT, "");
不幸的是,如果你真的需要定义XmlAttributeOverrides
和默认命名空间,那么没有简单的构造函数重载 - 所以你可以跳过XmlAttributeOverrides
并使用我提到的那个构造函数,或者你需要使用定义所有可能参数的那个(包括XmlAttributeOverrides和默认的XML命名空间 - 以及更多)。
答案 2 :(得分:1)
public static byte[] SerializeByteByType(object objectToSerialize, Type type)
{
XmlWriterSettings xmlSetting = new XmlWriterSettings()
{
NewLineOnAttributes = false,
OmitXmlDeclaration = true,
Indent = false,
NewLineHandling = NewLineHandling.None,
Encoding = Encoding.UTF8,
NamespaceHandling = NamespaceHandling.OmitDuplicates
};
using (MemoryStream stm = new MemoryStream())
{
using (XmlWriter writer = XmlWriter.Create(stm, xmlSetting))
{
var xmlAttributes = new XmlAttributes();
var xmlAttributeOverrides = new XmlAttributeOverrides();
xmlAttributes.Xmlns = false;
xmlAttributes.XmlType = new XmlTypeAttribute() { Namespace = "" };
xmlAttributeOverrides.Add(type, xmlAttributes);
XmlSerializer serializer = new XmlSerializer(type, xmlAttributeOverrides);
//Use the following to serialize without namespaces
XmlSerializerNamespaces xmlSrzNamespace = new XmlSerializerNamespaces();
xmlSrzNamespace.Add("", "");
serializer.Serialize(writer, objectToSerialize, xmlSrzNamespace);
stm.Flush();
stm.Position = 0;
}
return stm.ToArray();
}
}
答案 3 :(得分:0)
public static string SerializeToXml(object obj)
{
UTF8Encoding encoding = new UTF8Encoding(false);
var xmlAttributes = new XmlAttributes();
xmlAttributes.Xmlns = false;
xmlAttributes.XmlType = new XmlTypeAttribute() { Namespace = "" };
var xmlAttributeOverrides = new XmlAttributeOverrides();
var types = obj.GetType().Assembly.GetTypes().Where(t => string.Equals(t.Namespace, obj.GetType().Namespace, StringComparison.Ordinal));
foreach (var t in types) xmlAttributeOverrides.Add(t, xmlAttributes);
XmlSerializer sr = new XmlSerializer(obj.GetType(), xmlAttributeOverrides);
MemoryStream memoryStream = new MemoryStream();
StreamWriter writer = new StreamWriter(memoryStream, encoding);
XmlSerializerNamespaces namespaces = new XmlSerializerNamespaces();
namespaces.Add(string.Empty, string.Empty);
// get the stream from the writer
memoryStream = writer.BaseStream as MemoryStream;
sr.Serialize(writer, obj, namespaces);
// apply encoding to the stream
return (encoding.GetString(memoryStream.ToArray()).Trim());
}
它甚至适用于包含嵌套对象的复杂对象 归功于user3444796和Mentor