如何用C#实现XML和实体类之间序列化和反序列化相互转换

如何用C#实现XML和实体类之间序列化和反序列化相互转换？相信很多没有经验的人对此束手无策，为此本文总结了问题出现的原因和解决方法，通过这篇文章希望你能解决这个问题。

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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; 
    
///  
/// Xml序列化与反序列化 
///  
public class XmlUtil 
{ 
    #region 反序列化 
    ///  
    /// 反序列化 
    ///  
    /// 类型 
    /// XML字符串 
    ///  
    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; 
        } 
    } 
    ///  
    /// 反序列化 
    ///  
    ///  
    ///  
    ///  
    public static object Deserialize(Type type, Stream stream) 
    { 
        XmlSerializer xmldes = new XmlSerializer(type); 
        return xmldes.Deserialize(stream); 
    } 
    #endregion 
   
    #region 序列化 
    ///  
    /// 序列化 
    ///  
    /// 类型 
    /// 对象 
    ///  
    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 list1 = new List(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), list1); 
Console.Write(xml); 
   
/* Xml转换到List */ 
List list2 = XmlUtil.Deserialize(typeof(List), xml) as List; 
foreach (Student stu in list2) 
{ 
    Console.WriteLine(stu.Name + "," + stu.Age.ToString()); 
}
   
protected void Page_Load(object sender, EventArgs e) 
{ 
    string strTest = @" 
       
         
           
            ATVPDKIKX0DER 
            B00K69WURQ 
           
           
            TBVPDKIKX0DER 
            C00K69WURQ 
           
           
            KlVPDKIKX0DER 
            D00K69WURQ 
           
         
       
    "; 
    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 + "
"); 
        } 
    } 
} 
   
/* 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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