asp.net类序列化生成xml文件实例详解

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>

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

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

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

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 display.city = webInfo.cityName; //商品标题 display.webSitetitle = webInfo.title; //商品图片 display.image = "http://211.155.235.30/tuangou/" + webInfo.folderName + "/" + webInfo.productimg; //商品开始时间 display.startTime = webInfo.begin_time.ToShortDateString(); //商品结束时间 display.endTime = webInfo.end_time.ToShortDateString(); //市场价 display.value = Convert.ToDouble(webInfo.market_price); //团购价 display.price = Convert.ToDouble(webInfo.team_price); //折扣价 display.rebate = Convert.ToDouble(webInfo.zhekou_price); //现在购买的人数 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); //构造字符串 StringBuilder sb = new StringBuilder(); //将字符串写入到stringWriter对象中 StringWriter sw = new StringWriter(sb); //xml序列化对象 typeof(类名) XmlSerializer ser = new XmlSerializer(typeof(urlset)); //把Stream对象和urlset一起传入，序列化出一个字符串sb ser.Serialize(sw, urlsetList, xmlns); sw.Close(); string FILE_NAME = HttpContext.Current.Server.MapPath("API/54tuan.xml"); FileInfo fi = new FileInfo(FILE_NAME); //如果文件己经存在则删除该文件 if (fi.Exists) { if (fi.Attributes.ToString().IndexOf("ReadOnly") >= 0) { fi.Attributes = FileAttributes.Normal; } File.Delete(fi.Name); } //创建文件 并写入字符串 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(); } //输出序列化后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

希望本文所述对大家asp.net程序设计有所帮助。

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