asp.net去掉HTML标记的源码
asp.net去掉HTML标记的源码
| ///提取HTML代码中文字的C#函数 /// <summary> /// 去除HTML标记 /// </summary> /// <param name="strHtml">包括HTML的源码 </param> /// <returns>已经去除后的文字</returns> using System; using System.Text.RegularExpressions; public class StripHTMLTest{ public static void Main(){ string s=StripHTML("<HTML><HEAD><TITLE>中国石龙信息平台</TITLE></HEAD><BODY>faddfs龙信息平台</BODY></HTML>"); Console.WriteLine(s); } public static string StripHTML(string strHtml){ string aryReg ={ @"<script[^>]*?>.*?</script>", @"<(\/\s*)?!?((\w+:)?\w+)(\w+(\s*=?\s*(([""'])(\\[""'tbnr]|[^\7])*?\7|\w+)|.{0})|\s)*?(\/\s*)?>", @"([ ])[\s]+", @"&(quot|#34);", @"&(amp|#38);", @"&(lt|#60);", @"&(gt|#62);", @"&(nbsp|#160);", @"&(iexcl|#161);", @"&(cent|#162);", @"&(pound|#163);", @"&(copy|#169);", @"&#(\d+);", @"-->", @"<!--.* " }; string aryRep = { "", "", "", "\"", "&", "<", ">", " ", "\xa1",//chr(161), "\xa2",//chr(162), "\xa3",//chr(163), "\xa9",//chr(169), "", " ", "" }; string newReg =aryReg[]; string strOutput=strHtml; forint i = ;i<aryReg.Length;i++){ Regex regex = new Regex(aryReg[i],RegexOptions.IgnoreCase); strOutput = regex.Replace(strOutput,aryRep[i]); } strOutput.Replace("<",""); strOutput.Replace(">",""); strOutput.Replace(" ",""); return strOutput; } } |
| /// <summary> /// 去除HTML标记 /// </summary> /// <param name="NoHTML">包括HTML的源码 </param> /// <returns>已经去除后的文字</returns> public static string NoHTML(string Htmlstring) { //删除脚本 Htmlstring = Regex.Replace(Htmlstring,@"<script[^>]*?>.*?</script>","",RegexOptions.IgnoreCase); //删除HTML Htmlstring = Regex.Replace(Htmlstring,@"<(.[^>]*)>","",RegexOptions.IgnoreCase); Htmlstring = Regex.Replace(Htmlstring,@"([ ])[\s]+","",RegexOptions.IgnoreCase); Htmlstring = Regex.Replace(Htmlstring,@"-->","",RegexOptions.IgnoreCase); Htmlstring = Regex.Replace(Htmlstring,@"<!--.*","",RegexOptions.IgnoreCase); Htmlstring = Regex.Replace(Htmlstring,@"&(quot|#34);","\"",RegexOptions.IgnoreCase); Htmlstring = Regex.Replace(Htmlstring,@"&(amp|#38);","&",RegexOptions.IgnoreCase); Htmlstring = Regex.Replace(Htmlstring,@"&(lt|#60);","<",RegexOptions.IgnoreCase); Htmlstring = Regex.Replace(Htmlstring,@"&(gt|#62);",">",RegexOptions.IgnoreCase); Htmlstring = Regex.Replace(Htmlstring,@"&(nbsp|#160);"," ",RegexOptions.IgnoreCase); Htmlstring = Regex.Replace(Htmlstring,@"&(iexcl|#161);","\xa1",RegexOptions.IgnoreCase); Htmlstring = Regex.Replace(Htmlstring,@"&(cent|#162);","\xa2",RegexOptions.IgnoreCase); Htmlstring = Regex.Replace(Htmlstring,@"&(pound|#163);","\xa3",RegexOptions.IgnoreCase); Htmlstring = Regex.Replace(Htmlstring,@"&(copy|#169);","\xa9",RegexOptions.IgnoreCase); Htmlstring = Regex.Replace(Htmlstring, @"&#(\d+);","",RegexOptions.IgnoreCase); Htmlstring.Replace("<",""); Htmlstring.Replace(">",""); Htmlstring.Replace(" ",""); Htmlstring=HttpContext.Current.Server.HtmlEncode(Htmlstring).Trim(); return Htmlstring; } |
| 写一个静态方法 移除HTML标签#region 移除HTML标签 /**//// <summary> /// 移除HTML标签 /// </summary> /// <param name="HTMLStr">HTMLStr</param> public static string ParseTags(string HTMLStr) { return System.Text.RegularExpressions.Regex.Replace(HTMLStr, "<[^>]*>", ""); } #endregion 取出文本中的图片地址#region 取出文本中的图片地址 /**//// <summary> /// 取出文本中的图片地址 /// </summary> /// <param name="HTMLStr">HTMLStr</param> public static string GetImgUrl(string HTMLStr) { string str = string.Empty; string sPattern = @"^<img\s+[^>]*>"; Regex r = new Regex(@"<img\s+[^>]*\s*src\s*=\s*([']?)(?<url>\S+)'?[^>]*>", RegexOptions.Compiled); Match m = r.Match(HTMLStr.ToLower()); if (m.Success) str = m.Result("${url}"); return str; } #endregion |
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