本文实例讲述了C#实现XML与实体类之间相互转换的方法。分享给大家供大家参考，具体如下：

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.IO; using System.Data; using System.Xml; using System.Xml.Serialization; /// <summary> /// Xml序列化与反序列化 /// </summary> public class XmlUtil { #region 反序列化 /// <summary> /// 反序列化 /// </summary> /// <param name="type">类型</param> /// <param name="xml">XML字符串</param> /// <returns></returns> public static object Deserialize(Type type, string xml) { try { using (StringReader sr = new StringReader(xml)) { XmlSerializer xmldes = new XmlSerializer(type); return xmldes.Deserialize(sr); } } catch (Exception e) { return null; } } /// <summary> /// 反序列化 /// </summary> /// <param name="type"></param> /// <param name="xml"></param> /// <returns></returns> public static object Deserialize(Type type, Stream stream) { XmlSerializer xmldes = new XmlSerializer(type); return xmldes.Deserialize(stream); } #endregion #region 序列化 /// <summary> /// 序列化 /// </summary> /// <param name="type">类型</param> /// <param name="obj">对象</param> /// <returns></returns> public static string Serializer(Type type, object obj) { MemoryStream Stream = new MemoryStream(); XmlSerializer xml = new XmlSerializer(type); try { //序列化对象 xml.Serialize(Stream, obj); } catch (InvalidOperationException) { throw; } Stream.Position = 0; StreamReader sr = new StreamReader(Stream); string str = sr.ReadToEnd(); sr.Dispose(); Stream.Dispose(); return str; } #endregion }

/* 实体对象转换到Xml */ public class Student { public string Name { set; get; } public int Age { set; get; } } Student stu1 = new Student() { Name = "okbase", Age = 10 }; string xml = XmlUtil.Serializer(typeof(Student), stu1); Console.Write(xml); /* Xml转换到实体对象 */ Student stu2 = XmlUtil.Deserialize(typeof(Student), xml) as Student; Console.Write(string.Format("名字:{0},年龄:{1}", stu2.Name, stu2.Age)); /* DataTable转换到Xml */ // 生成DataTable对象用于测试 DataTable dt1 = new DataTable("mytable"); // 必须指明DataTable名称 dt1.Columns.Add("Dosage", typeof(int)); dt1.Columns.Add("Drug", typeof(string)); dt1.Columns.Add("Patient", typeof(string)); dt1.Columns.Add("Date", typeof(DateTime)); // 添加行 dt1.Rows.Add(25, "Indocin", "David", DateTime.Now); dt1.Rows.Add(50, "Enebrel", "Sam", DateTime.Now); dt1.Rows.Add(10, "Hydralazine", "Christoff", DateTime.Now); dt1.Rows.Add(21, "Combivent", "Janet", DateTime.Now); dt1.Rows.Add(100, "Dilantin", "Melanie", DateTime.Now); // 序列化 xml = XmlUtil.Serializer(typeof(DataTable), dt1); Console.Write(xml); /* Xml转换到DataTable */ // 反序列化 DataTable dt2 = XmlUtil.Deserialize(typeof(DataTable), xml) as DataTable; // 输出测试结果 foreach (DataRow dr in dt2.Rows) { foreach (DataColumn col in dt2.Columns) { Console.Write(dr[col].ToString() + " "); } Console.Write("rn"); } /* List转换到Xml */ // 生成List对象用于测试 List<Student> list1 = new List<Student>(3); list1.Add(new Student() { Name = "okbase", Age = 10 }); list1.Add(new Student() { Name = "csdn", Age = 15 }); // 序列化 xml = XmlUtil.Serializer(typeof(List<Student>), list1); Console.Write(xml); /* Xml转换到List */ List<Student> list2 = XmlUtil.Deserialize(typeof(List<Student>), xml) as List<Student>; foreach (Student stu in list2) { Console.WriteLine(stu.Name + "," + stu.Age.ToString()); }

protected void Page_Load(object sender, EventArgs e) { string strTest = @"<Relationships> <VariationParent xmlns='http://www.microsoft.com/schema/Products/2011-10-01'> <Identifiers> <MarketplaceASIN> <MarketplaceId>ATVPDKIKX0DER</MarketplaceId> <ASIN>B00K69WURQ</ASIN> </MarketplaceASIN> <MarketplaceASIN> <MarketplaceId>TBVPDKIKX0DER</MarketplaceId> <ASIN>C00K69WURQ</ASIN> </MarketplaceASIN> <MarketplaceASIN> <MarketplaceId>KlVPDKIKX0DER</MarketplaceId> <ASIN>D00K69WURQ</ASIN> </MarketplaceASIN> </Identifiers> </VariationParent> </Relationships>"; TextBox1.Text = ""; XmlDocument doc = new XmlDocument(); doc.LoadXml(strTest); XmlElement root = doc.DocumentElement; //用于带命名空间的XML操作 XmlNamespaceManager nsmgr = new XmlNamespaceManager(doc.NameTable); nsmgr.AddNamespace("ab", "http://www.microsoft.com/schema/Products/2011-10-01"); XmlNodeList macthNodes = root.SelectNodes("//ab:Identifiers/ab:MarketplaceASIN", nsmgr); for (int i = 0; i < macthNodes.Count; i++) { //删除生成的命名空间，生成标准XML。 string matchNode = CleanXmlnsTag(macthNodes[i].OuterXml); MarketplaceASIN ma = XmlUtil.Deserialize(typeof(MarketplaceASIN), matchNode) as MarketplaceASIN; if (ma != null) { Response.Write(ma.MarketplaceId + "---------" + ma.ASIN + "<br/>"); } } } /* 实体对象 */ public class MarketplaceASIN { public string MarketplaceId { set; get; } public string ASIN { set; get; } } protected string CleanXmlnsTag(string xml) { xml = xml.Replace("xmlns="http://www.microsoft.com/schema/Products/2011-10-01"", ""); return xml; }

PS：小编这里再来为大家推荐几款关于xml操作的在线工具供大家免费使用。相信在以后开发中可以用的到：

在线XML格式化/压缩工具：

http://tools.jb51.net/code/xmlformat

在线XML/JSON互相转换工具：

http://tools.jb51.net/code/xmljson

xml代码在线格式化美化工具：

http://tools.jb51.net/code/xmlcodeformat

HTML/XML转义字符对照表：

http://tools.jb51.net/table/html_escape

希望本文所述对大家C#程序设计有所帮助。