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本文实例讲述了asp.net类序列化生成xml文件的方法。分享给大家供大家参考，具体如下：
根据设计的需求需要开发多个商品的API 原XML文件如下：
<urlset>
<url>
<loc>http://www.xxxxx.com/todaydetials.aspx?id=143</loc>
<data>
<display>
<website>爱购114</website>
<siteurl>http://www.xxxxx.com/</siteurl>
<city>杭州</city>
<webSitetitle></webSitetitle>
<image></image>
<startTime>2011-2-9</startTime>
<endTime>2011-2-15</endTime>
<value>3880</value>
<price>2088</price>
<rebate>0.53</rebate>
<bought>0</bought>
</display>
</data>
</url>
</urlset>
</div>
现在需求是要根据数据库有几条商品信息 相应的API XML文件出现几个URL节点！ 采用类序列化成XML文件然后读取相应生成的XML文件就可以展示多个商品XML的信息 实现代码如下：
首先定义好XML 各个节点的数据及父子节点的关系类：
#region 定义数据实体类xml数据结构
public class urlset
{
public List<url> urlList
{
get;
set;
}
}
public class url
{
public string loc
{
get;
set;
}
public List<data> dataList
{
get;
set;
}
}
public class data
{
public List<display> displayList
{
get;
set;
}
}
public class display
{
public string website
{
get;
set;
}
public string siteurl
{
get;
set;
}
public string city
{
get;
set;
}
public string webSitetitle
{
get;
set;
}
public string image
{
get;
set;
}
public string startTime
{
get;
set;
}
public string endTime
{
get;
set;
}
public double value
{
get;
set;
}
public double price
{
get;
set;
}
public double rebate
{
get;
set;
}
public int bought
{
get;
set;
}
}
#endregion
</div>
第二步：#region 定义获取网站信息实体类
public class WebSiteInfo
{
/// <summary>
/// 商品标题
/// </summary>
public string title { get; set; }
/// <summary>
/// 商品发布时间
/// </summary>
public DateTime createtime { get; set; }
/// <summary>
/// 商品图片
/// </summary>
public string productimg { get; set; }
/// <summary>
/// 市场价
/// </summary>
public decimal market_price { get; set; }
/// <summary>
/// 团购价
/// </summary>
public decimal team_price { get; set; }
/// <summary>
/// 折扣价
/// </summary>
public decimal zhekou_price { get; set; }
/// <summary>
/// 城市名称
/// </summary>
public string cityName { get; set; }
/// <summary>
/// 商品开始时间
/// </summary>
public DateTime begin_time { get; set; }
/// <summary>
/// 结束时间
/// </summary>
public DateTime end_time { get; set; }
/// <summary>
/// 商家名称
/// </summary>
public string merchants_id { get; set; }
/// <summary>
/// 本单详情
/// </summary>
public string description { get; set; }
/// <summary>
/// 最低购买人数
/// </summary>
public int lowBuNo { get; set; }
/// <summary>
/// 商家地址
/// </summary>
public string Address { get; set; }
/// <summary>
/// 商家电话
/// </summary>
public string Telphone { get; set; }
/// <summary>
/// 城市区号
/// </summary>
public string cCode { get; set; }
/// <summary>
/// 文件夹名称
/// </summary>
public string folderName { get; set; }
/// <summary>
/// 团购状态
/// </summary>
public string StatusMessage { get; set; }
/// <summary>
/// 现在购买人数
/// </summary>
public int nownumber { get; set; }
/// <summary>
/// 商品编号
/// </summary>
public int productID { get; set; }
}
#endregion
</div>
第三步：获取数据库商品信息记录并添加到对象的集合中（Arraylist）：
#region 获取xml实体类信息
/// <summary>
/// 获取xml实体类信息
/// </summary>
/// <returns></returns>
public static ArrayList GetWebModelInfo()
{
ArrayList list = new ArrayList();
string strSQL = "select a.id, a.merchantsID,a.cCode,a.prodCode,a.statue,a.now_number, a.title,a.createtime,a.productimg,a.market_price,a.team_price,a.zhekou_price,a.cityName,a.begin_time,a.end_time,a.description,a.lowBuyNo,b.Address,b.Tel from tg_product as a left join tg_merchants as b on a.merchantsID=b.merchants_id where a.ispublic=1 and statue>-1 and getdate()<dateadd(day,1,a.end_time) order by a.createtime desc";
DataSet ds = FrameWork.Data.SqlHelper.ReturnDataSet(CommandType.Text, strSQL, null);
if (ds.Tables[0].Rows.Count > 0)
{
foreach (DataRow dr in ds.Tables[0].Rows)
{
WebSiteInfo webModel = new WebSiteInfo();
//城市名称
webModel.cityName = dr["cityName"].ToString();
//商品标题
webModel.title = dr["title"].ToString();
//商品创建时间
webModel.createtime = Convert.ToDateTime(dr["createtime"].ToString());
//商家名称
webModel.merchants_id = dr["merchantsID"].ToString();
//商品图片
webModel.productimg = dr["productimg"].ToString();
//市场价
webModel.market_price = Convert.ToDecimal(dr["market_price"].ToString());
//团购价
webModel.team_price = Convert.ToDecimal(dr["team_price"].ToString());
//折扣价
webModel.zhekou_price = Convert.ToDecimal(dr["zhekou_price"].ToString());
//开始时间
webModel.begin_time = Convert.ToDateTime(dr["begin_time"].ToString());
//结束时间
webModel.end_time = Convert.ToDateTime(dr["end_time"].ToString());
//商品说明
webModel.description = dr["description"].ToString();
//最低购买数量
webModel.lowBuNo = Convert.ToInt32(dr["lowBuyNo"].ToString());
//商家电话
webModel.Telphone = dr["Tel"].ToString();
//商家地址
webModel.Address = dr["Address"].ToString();
//城市编号
webModel.cCode = dr["cCode"].ToString();
//图片文件夹名称
webModel.folderName = dr["prodCode"].ToString();
//现在购买人数
webModel.nownumber = Convert.ToInt32(dr["now_number"].ToString());
//商品编号
webModel.productID = Convert.ToInt32(dr["id"].ToString());
int status = Convert.ToInt32(dr["statue"].ToString());
switch (status)
{
case 0:
webModel.StatusMessage = "结束";
break;
case 1:
webModel.StatusMessage = "成功";
break;
}
list.Add(webModel);
}
}
return list;
}
#endregion
</div>
最后一步将数据库读取来的信息赋值到XML 数据类型中 并序列化成XML文件保存成XML格式的文件读取文件展现到界面：
#region 页面加载 根据数据库商品记录数生成xml文件信息
/// <summary>
/// 页面加载 根据数据库商品记录数生成xml文件信息
/// </summary>
List<url> urlList = null;
urlset urlsetList = new urlset();
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
ArrayList listinfo=GetWebModelInfo();
urlList = new List<url>();
for (int i = 0; i < listinfo.Count; i++)
{
WebSiteInfo webInfo = listinfo[i] as WebSiteInfo;
List<display> displayList = new List<display>();
display display = new display();
display.website = "爱购114";
display.siteurl = "http://www.xxxxx.com/";
//城市名称