XML和实体类之间相互转换(序列化和反序列化)

我们需要在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()); }