[英]how to serialise exception object as xml string
我想要類似的東西
try
{
//code here
}
catch (Exception ex)
{
stringXML = Exception.toXML();
}
這樣stringXML的值就是
<exception><message></message><innerException></innerException></exception>
例如...
這怎么可能?
這取決於您要編寫多少代碼。 一種簡單的方法是編寫自己的對象並使用XmlSerializer
:
[XmlRoot("exception"), XmLType("exception")]
public class SerializableException {
[XmlElement("message")]
public string Message {get;set;}
[XmlElement("innerException")]
public SerializableException InnerException {get;set;}
}
並將常規異常映射到此。 但是因為它很簡單,也許XmlWriter
足夠好......
public static string GetXmlString(this Exception exception)
{
if (exception == null) throw new ArgumentNullException("exception");
StringWriter sw = new StringWriter();
using (XmlWriter xw = XmlWriter.Create(sw))
{
WriteException(xw, "exception", exception);
}
return sw.ToString();
}
static void WriteException(XmlWriter writer, string name, Exception exception)
{
if (exception == null) return;
writer.WriteStartElement(name);
writer.WriteElementString("message", exception.Message);
writer.WriteElementString("source", exception.Source);
WriteException(writer, "innerException", exception.InnerException);
writer.WriteEndElement();
}
有人已經寫了一篇關於它的博客文章
using System;
using System.Collections;
using System.Linq;
using System.Xml.Linq;
/// <summary>Represent an Exception as XML data.</summary>
public class ExceptionXElement : XElement
{
/// <summary>Create an instance of ExceptionXElement.</summary>
/// <param name="exception">The Exception to serialize.</param>
public ExceptionXElement(Exception exception)
: this(exception, false)
{ }
/// <summary>Create an instance of ExceptionXElement.</summary>
/// <param name="exception">The Exception to serialize.</param>
/// <param name="omitStackTrace">
/// Whether or not to serialize the Exception.StackTrace member
/// if it's not null.
/// </param>
public ExceptionXElement(Exception exception, bool omitStackTrace)
: base(new Func<XElement>(() =>
{
// Validate arguments
if (exception == null)
{
throw new ArgumentNullException("exception");
}
// The root element is the Exception's type
XElement root = new XElement
(exception.GetType().ToString());
if (exception.Message != null)
{
root.Add(new XElement("Message", exception.Message));
}
// StackTrace can be null, e.g.:
// new ExceptionAsXml(new Exception())
if (!omitStackTrace && exception.StackTrace != null)
{
root.Add
(
new XElement("StackTrace",
from frame in exception.StackTrace.Split('\n')
let prettierFrame = frame.Substring(6).Trim()
select new XElement("Frame", prettierFrame))
);
}
// Data is never null; it's empty if there is no data
if (exception.Data.Count > 0)
{
root.Add
(
new XElement("Data",
from entry in
exception.Data.Cast<DictionaryEntry>()
let key = entry.Key.ToString()
let value = (entry.Value == null) ?
"null" : entry.Value.ToString()
select new XElement(key, value))
);
}
// Add the InnerException if it exists
if (exception.InnerException != null)
{
root.Add
(
new ExceptionXElement
(exception.InnerException, omitStackTrace)
);
}
return root;
})())
{ }
}
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