c# XML和实体类之间相互转换(序列化和反序列化)

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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。

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

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

// 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

// 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

// 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

List<Student> list2 = XmlUtil.Deserialize(typeof(List<Student>), xml) as List<Student>;

foreach (Student stu in list2)
{

    Console.WriteLine(stu.Name + "," + stu.Age.ToString());
}