asp.net core3.1 c# 生成三种sitemap，今天发个汇总的。代码还未重构，哪位大咖自己重构一下吧。先看看成果物截图：
统一放到网站根目录就行。 asp.net core3.1的根目录是wwwroot下，接下来我会升级项目到NET6.
运行的成果物：
网站地图三种格式生成代码：
#region CreateSiteMap /// <summary> /// /// </summary> /// <returns></returns> [Route("/system/ajaxCreateSiteMap")] public JsonResult CreateSiteMap() { try { //XML string currentXmlFileName = "sitemap.xml"; string sitemapPath = _Environment.WebRootPath; string sitemapFileFullNamePath = string.Format(sitemapPath + "/{0}", currentXmlFileName); //TXT string sitemaptxtname = "sitemap.txt"; string sitemapTxTFileFullNamePath = string.Format(sitemapPath + "/{0}", sitemaptxtname); FileStream fs = new FileStream(sitemapTxTFileFullNamePath, FileMode.Create, FileAccess.Write); StreamWriter sw = new StreamWriter(fs, System.Text.Encoding.UTF8); sw.BaseStream.Seek(0, SeekOrigin.End); sw.WriteLine("https://www.yadinghao.com"); //html string sitemaphtmlname = "sitemap.html"; string sitemapHtmlFileFullNamePath = string.Format(sitemapPath + "/{0}", sitemaphtmlname); FileStream htmlfs = new FileStream(sitemapHtmlFileFullNamePath, FileMode.Create, FileAccess.Write); StreamWriter htmlsw = new StreamWriter(htmlfs, System.Text.Encoding.UTF8); htmlsw.BaseStream.Seek(0, SeekOrigin.End); StringBuilder sb= new StringBuilder(); sb.AppendLine("<!DOCTYPE html>"); sb.AppendLine("<html lang='en'>"); sb.AppendLine("<head>"); sb.AppendLine("<meta charset='UTF-8'>"); sb.AppendLine("<meta name='viewport' content='width=device-width, initial-scale=1.0'>"); sb.AppendLine("<title>sitemap</title>"); sb.AppendLine("</head>"); sb.AppendLine("<body>"); sb.AppendLine("<style>a{color:rgb(0, 0, 238);font-size:13px;}</style>"); sb.AppendLine("<ol><li><a href='https://www.yadinghao.com'>亚丁号</a></li>"); var articleList = new ArticleAccess().FindArticleListForSitemap(); //获取需要生成sitemmap的数据 XmlDocument xmlDoc = new XmlDocument(); //加入XML的声明段落：<?xmlversion="1.0" encoding="utf-8"?> XmlDeclaration xmldecl = xmlDoc.CreateXmlDeclaration("1.0", "utf-8", null); xmlDoc.AppendChild(xmldecl); XmlElement xe = xmlDoc.CreateElement("urlset");//创建一个urlset根元素 xmlDoc.AppendChild(xe); XmlNode root = xmlDoc.SelectSingleNode("urlset");//查找<urlset> XmlElement xmle = xmlDoc.CreateElement("url"); //创建一个<api>节点 XmlElement xmle1 = xmlDoc.CreateElement("loc"); xmle1.InnerText = "https://www.yadinghao.com";//此处拼接动态地址 xmle.AppendChild(xmle1); XmlElement xmle2 = xmlDoc.CreateElement("lastmod"); xmle2.InnerText = Tools.GetDate(); xmle.AppendChild(xmle2); XmlElement xmle3 = xmlDoc.CreateElement("changefreq"); xmle3.InnerText = "always"; xmle.AppendChild(xmle3); XmlElement xmle4 = xmlDoc.CreateElement("priority"); xmle4.InnerText = "1"; xmle.AppendChild(xmle4); xe.AppendChild(xmle); foreach (var item in articleList) { var spriderUrl = string.Format("https://www.yadinghao.com/article/details/{0}.html", item.ARTICLE_CODE); sw.WriteLine(spriderUrl); sb.AppendLine("<li><a href='"+ spriderUrl + "'>"+ item.ARTICLE_TITLE+ "</a></li>"); XmlElement xe1 = xmlDoc.CreateElement("url"); //创建一个<api>节点 XmlElement xesub1 = xmlDoc.CreateElement("loc"); xesub1.InnerText = spriderUrl;//此处拼接动态地址 xe1.AppendChild(xesub1); XmlElement xesub2 = xmlDoc.CreateElement("lastmod"); xesub2.InnerText = item.CREATEDATE.ToString("yyyy-MM-dd"); xe1.AppendChild(xesub2); XmlElement xesub3 = xmlDoc.CreateElement("changefreq"); //是用来告诉搜索引擎网站更新的周期，描述的单词：“always”（经常） 、“hourly”（每时）、“daily”（每天）、“weekly”（每周）、“monthly”（每月）、“yearly”（每年）。像首页就可以用“always”；对于很久前的链接或不再更新内容的链接就可以使用“yearly”。 xesub3.InnerText = "yearly"; xe1.AppendChild(xesub3); XmlElement xesub4 = xmlDoc.CreateElement("priority"); xesub4.InnerText = "0.8"; xe1.AppendChild(xesub4); root.AppendChild(xe1); } xmlDoc.Save(sitemapFileFullNamePath); //此处放xml文件的保存地址 sb.AppendLine("</ol>"); sb.AppendLine("</body>"); sb.AppendLine("</html>"); htmlsw.WriteLine(sb.ToString()); htmlsw.Flush(); htmlsw.Close(); sw.Flush(); sw.Close(); return JsonResultRight(); } catch (Exception ex) { _Logger.LogError("ajaxCreateSiteMapXml生成数据失败：" + ex.Message); return JsonResultError("ajaxCreateSiteMapXml生成数据失败：" + ex.Message); } } #endregion
页面加载各种地图格式：
public static int readFileLines(string path) //这里的参数是txt所在路径 { int lines = 0; //用来统计txt行数 FileStream fs = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite); StreamReader sr = new StreamReader(fs); while (sr.ReadLine() != null) { lines++; } fs.Close(); sr.Close(); return lines; } /// <summary> /// /// </summary> /// <param name="path"></param> /// <param name="tag"></param> /// <returns></returns> public static int readHtmlTagLines(string path,string tag) { int lines = 0; //用来统计tag行数 FileStream fs = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite); StreamReader sr = new StreamReader(fs); StringBuilder sb = new StringBuilder(); string ss = ""; ss = sr.ReadToEnd(); string[] strings= ss.Split(tag); lines = strings.Length; //while (sr.ReadLine() != null) //{ // string lineMessage = sr.ReadLine(); // if (lineMessage == null) // { // continue; // } // else // { // sb.Append(lineMessage); // } // //if (lineMessage.Contains(tag)) // //{ // // lines++; // //} //} //string html= sb.ToString(); IHtmlDocument source = new JumonyParser().LoadDocument(path, System.Text.Encoding.GetEncoding("utf-8")); string html = wc.DownloadString("https://www.baidu.com/"); 以正则表达式的形式匹配到字符串网页中想要的数据 //MatchCollection matches = Regex.Matches(html, "<a.*>(.*)</a>"); 依次取得匹配到的数据 //foreach (Match item in matches) //{ // string hhhhh = item.Groups[1].Value; // Console.WriteLine(hhhhh); //} fs.Close(); sr.Close(); return lines; } [Route("/system/ajaxLoadSiteMaps")] public JsonResult LoadSiteMaps() { try { List<SiteMapEntity> resultList = new List<SiteMapEntity>(); string filePath = _Environment.WebRootPath; //sitemap DirectoryInfo root = new DirectoryInfo(filePath); FileInfo[] files = root.GetFiles(); int MB = 1024 * 1024; foreach (FileInfo file in files) { string extension = Path.GetExtension(file.FullName);//扩展名 if (file.Name.Contains("sitemap") & extension == ".html") { string fileSize = Math.Round(file.Length / (float)MB, 2).ToString(); SiteMapEntity model = new SiteMapEntity(); model.SITEMAP_ID = Tools.GetGUID(); model.SITEMAP_MD5 = Tools.MD5String(file.FullName); model.SITEMAP_NAME = file.Name; model.SITEMAP_SIZE = fileSize + "MB"; int fileTxTNumber = readHtmlTagLines(file.FullName, "href"); model.SITEMAP_NUMBER = fileTxTNumber.ToString(); model.CREATEDATE = file.LastWriteTime; using (StreamReader sr = new StreamReader(file.FullName, FileEncoding.GetType(file.FullName))) { string sTemp = string.Empty; string sCurEncode = sr.CurrentEncoding.EncodingName; model.SITEMAP_ENCODING = sCurEncode; } resultList.Add(model); } if (file.Name.Contains("sitemap") & extension == ".txt") { string fileSize = Math.Round(file.Length / (float)MB, 2).ToString(); SiteMapEntity model = new SiteMapEntity(); model.SITEMAP_ID = Tools.GetGUID(); model.SITEMAP_MD5 = Tools.MD5String(file.FullName); model.SITEMAP_NAME = file.Name; model.SITEMAP_SIZE = fileSize + "MB"; int fileTxTNumber = readFileLines(file.FullName); model.SITEMAP_NUMBER = fileTxTNumber.ToString(); model.CREATEDATE = file.LastWriteTime; using (StreamReader sr = new StreamReader(file.FullName, FileEncoding.GetType(file.FullName))) { string sTemp = string.Empty; string sCurEncode = sr.CurrentEncoding.EncodingName; model.SITEMAP_ENCODING = sCurEncode; } resultList.Add(model); } if (file.Name.Contains("sitemap") & extension == ".xml") { string fileSize = Math.Round(file.Length / (float)MB, 2).ToString(); SiteMapEntity model = new SiteMapEntity(); model.SITEMAP_ID = Tools.GetGUID(); model.SITEMAP_MD5 = Tools.MD5String(file.FullName); model.SITEMAP_NAME = file.Name; model.SITEMAP_SIZE = fileSize + "MB"; using (StreamReader sr = new StreamReader(file.FullName, FileEncoding.GetType(file.FullName))) { string sTemp = string.Empty; string sCurEncode = sr.CurrentEncoding.EncodingName; model.SITEMAP_ENCODING = sCurEncode; } int nodeCount = 0; XmlDocument doc = new XmlDocument(); doc.Load(file.FullName); //获得根节点 XmlNode rootNode = doc.DocumentElement; //在根节点中寻找节点 foreach (XmlNode node in rootNode.ChildNodes) { //找到对应的节点 if (node.Name == "url") { nodeCount = nodeCount + 1; } } model.SITEMAP_NUMBER = nodeCount.ToString(); model.CREATEDATE = file.LastWriteTime; resultList.Add(model); } } return ListToJsonString(resultList.Count, resultList); } catch (Exception ex) { _Logger.LogError("ajaxLoadSiteMaps加载数据失败：" + ex.Message); return JsonResultError("加载数据失败" + ex.Message); } } #endregion
加载的时候已经考虑地图文件分割的问题.
