C#实现XML与实体类之间相互转换的方法(序列化与反序列化)

protected void Page_Load(object sender, EventArgs e)
{
  string strTest = @"<Relationships>
   <VariationParent xmlns='http://www.easck.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.easck.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.easck.com/schema/Products/2011-10-01"", "");
  return xml;
}