本文實例講述了asp.net類序列化生成xml文件的方法。分享給大家供大家參考，具體如下：
根據設計的需求需要開發多個商品的API 原XML文件如下：
urlset>
url>
loc>http://www.xxxxx.com/todaydetials.aspx?id=143/loc>
data>
display>
website>愛購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>
現在需求是要根據數據庫有幾條商品信息 相應的API XML文件出現幾個URL節點！ 采用類序列化成XML文件然后讀取相應生成的XML文件就可以展示多個商品XML的信息 實現代碼如下：
首先定義好XML 各個節點的數據及父子節點的關系類：
#region 定義數據實體類xml數據結構
public class urlset
{
public Listurl> urlList
{
get;
set;
}
}
public class url
{
public string loc
{
get;
set;
}
public Listdata> dataList
{
get;
set;
}
}
public class data
{
public Listdisplay> 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
第二步：#region 定義獲取網站信息實體類
public class WebSiteInfo
{
/// summary>
/// 商品標題
/// /summary>
public string title { get; set; }
/// summary>
/// 商品發布時間
/// /summary>
public DateTime createtime { get; set; }
/// summary>
/// 商品圖片
/// /summary>
public string productimg { get; set; }
/// summary>
/// 市場價
/// /summary>
public decimal market_price { get; set; }
/// summary>
/// 團購價
/// /summary>
public decimal team_price { get; set; }
/// summary>
/// 折扣價
/// /summary>
public decimal zhekou_price { get; set; }
/// summary>
/// 城市名稱
/// /summary>
public string cityName { get; set; }
/// summary>
/// 商品開始時間
/// /summary>
public DateTime begin_time { get; set; }
/// summary>
/// 結束時間
/// /summary>
public DateTime end_time { get; set; }
/// summary>
/// 商家名稱
/// /summary>
public string merchants_id { get; set; }
/// summary>
/// 本單詳情
/// /summary>
public string description { get; set; }
/// summary>
/// 最低購買人數
/// /summary>
public int lowBuNo { get; set; }
/// summary>
/// 商家地址
/// /summary>
public string Address { get; set; }
/// summary>
/// 商家電話
/// /summary>
public string Telphone { get; set; }
/// summary>
/// 城市區號
/// /summary>
public string cCode { get; set; }
/// summary>
/// 文件夾名稱
/// /summary>
public string folderName { get; set; }
/// summary>
/// 團購狀態
/// /summary>
public string StatusMessage { get; set; }
/// summary>
/// 現在購買人數
/// /summary>
public int nownumber { get; set; }
/// summary>
/// 商品編號
/// /summary>
public int productID { get; set; }
}
#endregion
第三步：獲取數據庫商品信息記錄并添加到對象的集合中（Arraylist）：
#region 獲取xml實體類信息
/// summary>
/// 獲取xml實體類信息
/// /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();
//城市名稱
webModel.cityName = dr["cityName"].ToString();
//商品標題
webModel.title = dr["title"].ToString();
//商品創建時間
webModel.createtime = Convert.ToDateTime(dr["createtime"].ToString());
//商家名稱
webModel.merchants_id = dr["merchantsID"].ToString();
//商品圖片
webModel.productimg = dr["productimg"].ToString();
//市場價
webModel.market_price = Convert.ToDecimal(dr["market_price"].ToString());
//團購價
webModel.team_price = Convert.ToDecimal(dr["team_price"].ToString());
//折扣價
webModel.zhekou_price = Convert.ToDecimal(dr["zhekou_price"].ToString());
//開始時間
webModel.begin_time = Convert.ToDateTime(dr["begin_time"].ToString());
//結束時間
webModel.end_time = Convert.ToDateTime(dr["end_time"].ToString());
//商品說明
webModel.description = dr["description"].ToString();
//最低購買數量
webModel.lowBuNo = Convert.ToInt32(dr["lowBuyNo"].ToString());
//商家電話
webModel.Telphone = dr["Tel"].ToString();
//商家地址
webModel.Address = dr["Address"].ToString();
//城市編號
webModel.cCode = dr["cCode"].ToString();
//圖片文件夾名稱
webModel.folderName = dr["prodCode"].ToString();
//現在購買人數
webModel.nownumber = Convert.ToInt32(dr["now_number"].ToString());
//商品編號
webModel.productID = Convert.ToInt32(dr["id"].ToString());
int status = Convert.ToInt32(dr["statue"].ToString());
switch (status)
{
case 0:
webModel.StatusMessage = "結束";
break;
case 1:
webModel.StatusMessage = "成功";
break;
}
list.Add(webModel);
}
}
return list;
}
#endregion
最后一步將數據庫讀取來的信息賦值到XML 數據類型中 并序列化成XML文件保存成XML格式的文件讀取文件展現到界面：
#region 頁面加載 根據數據庫商品記錄數生成xml文件信息
/// summary>
/// 頁面加載 根據數據庫商品記錄數生成xml文件信息
/// /summary>
Listurl> urlList = null;
urlset urlsetList = new urlset();
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
ArrayList listinfo=GetWebModelInfo();
urlList = new Listurl>();
for (int i = 0; i listinfo.Count; i++)
{
WebSiteInfo webInfo = listinfo[i] as WebSiteInfo;
Listdisplay> displayList = new Listdisplay>();
display display = new display();
display.website = "愛購114";
display.siteurl = "http://www.xxxxx.com/";
//城市名稱
display.city = webInfo.cityName;
//商品標題
display.webSitetitle = webInfo.title;
//商品圖片
display.image = "http://211.155.235.30/tuangou/" + webInfo.folderName + "/" + webInfo.productimg;
//商品開始時間
display.startTime = webInfo.begin_time.ToShortDateString();
//商品結束時間
display.endTime = webInfo.end_time.ToShortDateString();
//市場價
display.value = Convert.ToDouble(webInfo.market_price);
//團購價
display.price = Convert.ToDouble(webInfo.team_price);
//折扣價
display.rebate = Convert.ToDouble(webInfo.zhekou_price);
//現在購買的人數
display.bought = webInfo.nownumber;
displayList.Add(display);
Listdata> dataList = new Listdata>();
data data = new data();
data.displayList = displayList;
dataList.Add(data);
url url = new url();
url.loc = String.Format("http://www.xxxxx.com/todaydetials.aspx?id={0}", webInfo.productID.ToString());
url.dataList = dataList;
urlList.Add(url);
urlsetList.urlList = urlList;
}
try
{
XmlSerializerNamespaces xmlns = new XmlSerializerNamespaces();
xmlns.Add(String.Empty, String.Empty);
//構造字符串
StringBuilder sb = new StringBuilder();
//將字符串寫入到stringWriter對象中
StringWriter sw = new StringWriter(sb);
//xml序列化對象 typeof(類名)
XmlSerializer ser = new XmlSerializer(typeof(urlset));
//把Stream對象和urlset一起傳入，序列化出一個字符串sb
ser.Serialize(sw, urlsetList, xmlns);
sw.Close();
string FILE_NAME = HttpContext.Current.Server.MapPath("API/54tuan.xml");
FileInfo fi = new FileInfo(FILE_NAME);
//如果文件己經存在則刪除該文件
if (fi.Exists)
{
if (fi.Attributes.ToString().IndexOf("ReadOnly") >= 0) {
fi.Attributes = FileAttributes.Normal;
}
File.Delete(fi.Name);
}
//創建文件 并寫入字符串
using (StreamWriter sWrite = File.CreateText(FILE_NAME))
{
sWrite.Write(sb.ToString().Replace("encoding=/"utf-16/"", "encoding=/"utf-8/"").Replace("urlList>", "").Replace("/urlList>", "").Replace("dataList>", "").Replace("/dataList>", "").Replace("displayList>", "").Replace("displayList>", "").Replace("/displayList>", ""));
sWrite.Close();
}
//輸出序列化后xml文件
Response.ClearContent();
Response.ClearHeaders();
Response.ContentType = "application/xml";
Response.WriteFile(HttpContext.Current.Server.MapPath("API/54tuan.xml"));
Response.Flush();
Response.Close();
}
catch (Exception ex)
{
Response.Write(ex.Message);
}
finally
{
}
}
}
#endregion
希望本文所述對大家asp.net程序設計有所幫助。
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