我继承了一个c#类。我已经成功地“构建”了对象。但是我需要将对象序列化为XML。有什么简单的方法吗?
看起来类已经为序列化设置了，但我不确定如何获得XML表示。我的类定义是这样的:
[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "4.0.30319.1")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true, Namespace = "http://www.domain.com/test")]
[System.Xml.Serialization.XmlRootAttribute(Namespace = "http://www.domain.com/test", IsNullable = false)]
public partial class MyObject
{
...
}
以下是我认为我能做的，但它不起作用:
MyObject o = new MyObject();
// Set o properties
string xml = o.ToString();
如何获得该对象的XML表示形式?
我修改了我的返回一个字符串，而不是像下面这样使用一个ref变量。
public static string Serialize<T>(this T value)
{
if (value == null)
{
return string.Empty;
}
try
{
var xmlserializer = new XmlSerializer(typeof(T));
var stringWriter = new StringWriter();
using (var writer = XmlWriter.Create(stringWriter))
{
xmlserializer.Serialize(writer, value);
return stringWriter.ToString();
}
}
catch (Exception ex)
{
throw new Exception("An error occurred", ex);
}
}
它的用法是这样的:
var xmlString = obj.Serialize();
我修改了我的返回一个字符串，而不是像下面这样使用一个ref变量。
public static string Serialize<T>(this T value)
{
if (value == null)
{
return string.Empty;
}
try
{
var xmlserializer = new XmlSerializer(typeof(T));
var stringWriter = new StringWriter();
using (var writer = XmlWriter.Create(stringWriter))
{
xmlserializer.Serialize(writer, value);
return stringWriter.ToString();
}
}
catch (Exception ex)
{
throw new Exception("An error occurred", ex);
}
}
它的用法是这样的:
var xmlString = obj.Serialize();
现在可能太晚了，但是只有用户定义的命名空间是序列化的:
public static string XmlSerialize<T>(this T obj) where T : class
{
Type serialType = typeof(T);
var xsSubmit = new XmlSerializer(serialType);
XmlWriterSettings xws = new XmlWriterSettings() { OmitXmlDeclaration = true, Indent = true };
var Namespaces = new XmlSerializerNamespaces(new XmlQualifiedName[] {
new XmlQualifiedName(string.Empty, GetXmlNameSpace(serialType) ?? string.Empty )
});
private static string GetXmlNameSpace(Type target)
{
XmlRootAttribute attribute = (XmlRootAttribute)Attribute.GetCustomAttribute(target, typeof(XmlRootAttribute));
return attribute == null ? null : attribute.Namespace;
}
并在自定义类中定义命名空间
[XmlRoot("IdentityTerminal",Namespace = "http://my-name-space/XMLSchema")]
public class IdentityTerminal
{
}
这段代码允许只使用用户定义的名称空间，而忽略默认的名称空间。
可以将下面的函数复制到任何对象，以使用System.Xml名称空间添加XML保存函数。
/// <summary>
/// Saves to an xml file
/// </summary>
/// <param name="FileName">File path of the new xml file</param>
public void Save(string FileName)
{
using (var writer = new System.IO.StreamWriter(FileName))
{
var serializer = new XmlSerializer(this.GetType());
serializer.Serialize(writer, this);
writer.Flush();
}
}
要从保存的文件创建对象，添加以下函数并将[ObjectType]替换为要创建的对象类型。
/// <summary>
/// Load an object from an xml file
/// </summary>
/// <param name="FileName">Xml file name</param>
/// <returns>The object created from the xml file</returns>
public static [ObjectType] Load(string FileName)
{
using (var stream = System.IO.File.OpenRead(FileName))
{
var serializer = new XmlSerializer(typeof([ObjectType]));
return serializer.Deserialize(stream) as [ObjectType];
}
}
必须使用XmlSerializer进行XML序列化。下面是一个示例代码片段。
XmlSerializer xsSubmit = new XmlSerializer(typeof(MyObject));
var subReq = new MyObject();
var xml = "";
using(var sww = new StringWriter())
{
using(XmlWriter writer = XmlWriter.Create(sww))
{
xsSubmit.Serialize(writer, subReq);
xml = sww.ToString(); // Your XML
}
}
根据泛型类的@kiquenet请求:
public class MySerializer<T> where T : class
{
public static string Serialize(T obj)
{
XmlSerializer xsSubmit = new XmlSerializer(typeof(T));
using (var sww = new StringWriter())
{
using (XmlTextWriter writer = new XmlTextWriter(sww) { Formatting = Formatting.Indented })
{
xsSubmit.Serialize(writer, obj);
return sww.ToString();
}
}
}
}
用法:
string xmlMessage = MySerializer<MyClass>.Serialize(myObj);
