XML和实体类之间相互转换(序列化和反序列化)

咱们须要在XML与实体类，DataTable，List之间进行转换，下面是XmlUtil类，该类来自网络并稍加修改。

 

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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 }

下面是测试代码：

 

1. 实体对象转换到Xml

 

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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);

2. Xml转换到实体对象

 

1 2	Student stu2 = XmlUtil.Deserialize( typeof (Student), xml) as Student; Console.Write( string .Format( "名字:{0},年龄:{1}" , stu2.Name, stu2.Age));

3. DataTable转换到Xml

 

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// 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);

4. Xml转换到DataTable

 

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// 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" ); }

5. List转换到Xml

 

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// 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);

6. Xml转换到List

 

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List<Student> list2 = XmlUtil.Deserialize( typeof (List<Student>), xml) as List<Student>; foreach (Student stu in list2) {      Console.WriteLine(stu.Name + "," + stu.Age.ToString()); }