C# XML 序列化与反序列化

首先，封装一个XML序列化和反序列化的函数。

引入程序集

using System.Xml.Serialization;  
using System.IO;  

public class XmlSerialize  
{  
    /// <summary>  
    /// 反序列化XML为类实例  
    /// </summary>  
    /// <typeparam name="T"></typeparam>  
    /// <param name="xmlObj"></param>  
    /// <returns></returns>  
    public static T DeserializeXML<T>(string xmlObj)  
    {  
        XmlSerializer serializer = new XmlSerializer(typeof(T));  
        using (StringReader reader = new StringReader(xmlObj))  
        {  
            return (T)serializer.Deserialize(reader);  
        }  
    }  
  
    /// <summary>  
    /// 序列化类实例为XML  
    /// </summary>  
    /// <typeparam name="T"></typeparam>  
    /// <param name="obj"></param>  
    /// <returns></returns>  
    public static string SerializeXML<T>(T obj)  
    {  
        using (StringWriter writer = new StringWriter())  
        {  
            new XmlSerializer(obj.GetType()).Serialize((TextWriter)writer, obj);  
            return writer.ToString();  
        }  
    }  
}  

再建一个实体类，添加序列化标记

[Serializable]  
public class UserInfo  
{  
    public string Name;  
  
    public string sex;  
}  

序列化一下

    UserInfo user = new UserInfo();  
    user.Name = "bdstjk";  
    user.sex = "男";  
    String strXml = XmlSerialize.SerializeXML<UserInfo>(user);  
    Console.WriteLine(strXml);  

序列化结果

反序列化

    string strXml = "<?xml version="1.0" encoding="utf-16"?><UserInfo xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><Name>bdstjk</Name><sex>男</sex></UserInfo>";  
    UserInfo user = XmlSerialize.DeserializeXML<UserInfo>(strXml);  
    Console.WriteLine(user.Name);  

一个新方法

    public static string Serialize<T>(this T obj, bool omitXmlDeclaration = false)
        {
            XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
            ns.Add("", "");   //Xmlns去除
            var sb = new StringBuilder();
            using (var xw = XmlWriter.Create(sb, new XmlWriterSettings()
            {
                OmitXmlDeclaration = omitXmlDeclaration,
                ConformanceLevel = ConformanceLevel.Auto,
                Indent = true
            }))
            {
                var xs = new XmlSerializer(obj.GetType());
                xs.Serialize(xw, obj,ns);
            }
            return sb.ToString();
        }

调用时   omitXmlDeclaration  为  true  时 ，XML头消失

转自  http://www.cnblogs.com/bdstjk/archive/2012/01/19/2519860.html