用C#实现XML和实体类之间序列化和反序列化相互转换

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("\r\n");   }        /* 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;   }

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