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：
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<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：
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#region 定義數據實體類xml數據結構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 |
第二步：#region 定義獲取網站信息實體類
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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）：
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#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：
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#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>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 = "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); List<data> dataList = new List<data>(); 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。
