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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