这篇文章主要介绍了asp.net类序列化生成xml文件的方法,结合实例形式较为详细的分析了asp.net序列化生成xml文件的具体步骤与相关实现技巧,需要的朋友可以参考下
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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