生成 网站“面包屑” XML
using System; using System.Collections.Generic; using System.IO; using System.Threading; using System.Xml; namespace Helper { public class SitemapXml { private const string Xmlns = "http://www.sitemaps.org/schemas/sitemap/0.9"; private const string XmlnsXsi = "http://www.w3.org/2001/XMLSchema-instance"; private const string XsiSchemaLocation = "http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd"; /// <summary> /// 生成SiteMap地图 /// </summary> /// <param name="siteMaps">需要生成的 对象列表</param> /// <param name="saveFileName">设置文件保存名称</param> /// <param name="changefreq">更新周期</param> /// <param name="savePath">xml文件保存路径</param> /// <returns></returns> public static bool CreateSiteMapXml(List<SiteMap> siteMaps, string savePath = "/", string saveFileName = "sitemap", string changefreq = "weekly") { //保存创建好的XML文档 string filename = saveFileName + ".xml"; string path = System.Web.HttpContext.Current.Server.MapPath(savePath) + filename; //先创建XML,返回路径 var xmldoc = new XmlDocument(); //加入XML的声明段落,<?xml version="1.0" encoding="gb2312"?> XmlDeclaration xmldecl = xmldoc.CreateXmlDeclaration("1.0", "UTF-8", null); xmldoc.AppendChild(xmldecl); //加入一个根元素 XmlNode xmlelem = xmldoc.CreateElement("", "urlset", ""); //添加属性 XmlAttribute attr = xmldoc.CreateAttribute("xmlns"); attr.Value = Xmlns; if (xmlelem.Attributes != null) xmlelem.Attributes.SetNamedItem(attr); attr = xmldoc.CreateAttribute("xmlns:xsi"); attr.Value = XmlnsXsi; if (xmlelem.Attributes != null) xmlelem.Attributes.SetNamedItem(attr); attr = xmldoc.CreateAttribute("xsi:schemaLocation"); attr.Value = XsiSchemaLocation; if (xmlelem.Attributes != null) xmlelem.Attributes.SetNamedItem(attr); xmldoc.AppendChild(xmlelem); string lastmod = DateTime.Now.ToString("yyyy-MM-dd"); for (int i = 0; i < siteMaps.Count; i++) { XmlNode root = xmldoc.SelectSingleNode("urlset");//查找<urlset> if (root == null) { //加入一个根元素 xmlelem = xmldoc.CreateElement("", "urlset", ""); //添加属性 attr = xmldoc.CreateAttribute("xmlns"); attr.Value = Xmlns; if (xmlelem.Attributes != null) xmlelem.Attributes.SetNamedItem(attr); attr = xmldoc.CreateAttribute("xmlns:xsi"); attr.Value = XmlnsXsi; if (xmlelem.Attributes != null) xmlelem.Attributes.SetNamedItem(attr); attr = xmldoc.CreateAttribute("xsi:schemaLocation"); attr.Value = XsiSchemaLocation; if (xmlelem.Attributes != null) xmlelem.Attributes.SetNamedItem(attr); xmldoc.AppendChild(xmlelem); i = 0; continue; } XmlElement xe1 = xmldoc.CreateElement("url");//创建一个<url>节点 XmlElement xmlelem1 = xmldoc.CreateElement("", "loc", ""); XmlText xmltext = xmldoc.CreateTextNode(siteMaps[i].Loc); xmlelem1.AppendChild(xmltext); xe1.AppendChild(xmlelem1); xmlelem1 = xmldoc.CreateElement("", "priority", ""); xmltext = xmldoc.CreateTextNode(siteMaps[i].Priority); xmlelem1.AppendChild(xmltext); xe1.AppendChild(xmlelem1); xmlelem1 = xmldoc.CreateElement("", "lastmod", ""); xmltext = xmldoc.CreateTextNode(lastmod); xmlelem1.AppendChild(xmltext); xe1.AppendChild(xmlelem1); xmlelem1 = xmldoc.CreateElement("", "changefreq", ""); xmltext = xmldoc.CreateTextNode(changefreq); xmlelem1.AppendChild(xmltext); xe1.AppendChild(xmlelem1); root.AppendChild(xe1);//添加到<urlset>节点中 } try { //然后在保存到源位置 xmldoc.AppendChild(xmlelem); xmldoc.Save(path); return true; } catch (Exception) { return false; } } } /// <summary> /// /// <url> /// <loc>http://news.chinahbnet.com/2014/8/19/15352.html</loc> /// <priority>0.5</priority> /// <lastmod>2014-08-19</lastmod> /// <changefreq>weekly</changefreq> /// </url> /// /// </summary> public class SiteMap { /// <summary> /// 链接地址 /// 如:http://news.chinahbnet.com /// </summary> public string Loc { get; set; } /// <summary> /// 网页权重 /// 0.1 - 1 /// </summary> public string Priority { get; set; } /// <summary> /// 生成日期 /// 2014-08-19 /// </summary> public string Lastmod { get; set; } /// <summary> /// 更新周期 /// always 经常 /// hourly 每小时 /// daily 每天 /// weekly 每周 /// monthly 每月 /// yearly 每年 /// never 从不 /// </summary> public string Changefreq { get; set; } } } 生成的结果为: <?xml version="1.0" encoding="UTF-8"?> <urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd"> <url> <loc>http://www.baidu.com</loc> <priority>1.00</priority> <lastmod>2014-08-19</lastmod> <changefreq>weekly</changefreq> </url> </urlset>