90 lines
5.1 KiB
C#
90 lines
5.1 KiB
C#
using System.Text.RegularExpressions;
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using System.Web;
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namespace WX.CRM.Common
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{
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public class HtmlHelper
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{
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public static string NoHTML(string Htmlstring)
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{
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if (Htmlstring.Length > 0)
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{
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//删除脚本
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Htmlstring = Regex.Replace(Htmlstring, @"<script[^>]*?>.*?</script>", "", RegexOptions.IgnoreCase);
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//删除HTML
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Htmlstring = Regex.Replace(Htmlstring, @"<(.[^>]*)>", "", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"([\r\n])[\s]+", "", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"-->", "", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"<!--.*", "", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&(quot|#34);", "\"", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&(amp|#38);", "&", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&(lt|#60);", "<", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&(gt|#62);", ">", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&(nbsp|#160);", " ", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&(iexcl|#161);", "\xa1", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&(cent|#162);", "\xa2", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&(pound|#163);", "\xa3", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&(copy|#169);", "\xa9", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&#(\d+);", "", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"“", "\"", RegexOptions.IgnoreCase);//保留【 “ 】的标点符合
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Htmlstring = Regex.Replace(Htmlstring, @"”", "\"", RegexOptions.IgnoreCase);//保留【 ” 】的标点符合
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Htmlstring.Replace("<", "");
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Htmlstring.Replace(">", "");
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Htmlstring.Replace("\r\n", "");
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Htmlstring = HttpContext.Current.Server.HtmlEncode(Htmlstring).Trim();
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}
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return Htmlstring;
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}
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public static string ClearHtml(string Content)
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{
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Content = Zxj_ReplaceHtml("&#[^>]*;", "", Content);
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Content = Zxj_ReplaceHtml("</?marquee[^>]*>", "", Content);
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Content = Zxj_ReplaceHtml("</?object[^>]*>", "", Content);
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Content = Zxj_ReplaceHtml("</?param[^>]*>", "", Content);
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Content = Zxj_ReplaceHtml("</?embed[^>]*>", "", Content);
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Content = Zxj_ReplaceHtml("</?table[^>]*>", "", Content);
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Content = Zxj_ReplaceHtml(" ", "", Content);
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Content = Zxj_ReplaceHtml("</?tr[^>]*>", "", Content);
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Content = Zxj_ReplaceHtml("</?th[^>]*>", "", Content);
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Content = Zxj_ReplaceHtml("</?p[^>]*>", "", Content);
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Content = Zxj_ReplaceHtml("</?a[^>]*>", "", Content);
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Content = Zxj_ReplaceHtml("</?img[^>]*>", "", Content);
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Content = Zxj_ReplaceHtml("</?tbody[^>]*>", "", Content);
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Content = Zxj_ReplaceHtml("</?li[^>]*>", "", Content);
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Content = Zxj_ReplaceHtml("</?span[^>]*>", "", Content);
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Content = Zxj_ReplaceHtml("</?div[^>]*>", "", Content);
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Content = Zxj_ReplaceHtml("</?th[^>]*>", "", Content);
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Content = Zxj_ReplaceHtml("</?td[^>]*>", "", Content);
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Content = Zxj_ReplaceHtml("</?script[^>]*>", "", Content);
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Content = Zxj_ReplaceHtml("(javascript|jscript|vbscript|vbs):", "", Content);
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Content = Zxj_ReplaceHtml("on(mouse|exit|error|click|key)", "", Content);
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Content = Zxj_ReplaceHtml("<\\?xml[^>]*>", "", Content);
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Content = Zxj_ReplaceHtml("<\\/?[a-z]+:[^>]*>", "", Content);
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Content = Zxj_ReplaceHtml("</?font[^>]*>", "", Content);
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Content = Zxj_ReplaceHtml("</?b[^>]*>", "", Content);
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Content = Zxj_ReplaceHtml("</?u[^>]*>", "", Content);
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Content = Zxj_ReplaceHtml("</?i[^>]*>", "", Content);
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Content = Zxj_ReplaceHtml("</?strong[^>]*>", "", Content);
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string clearHtml = Content;
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return clearHtml;
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}
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/// <summary>
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/// 清除文本中的Html标签
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/// </summary>
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/// <param name="patrn">要替换的标签正则表达式</param>
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/// <param name="strRep">替换为的内容</param>
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/// <param name="content">要替换的内容</param>
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/// <returns></returns>
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private static string Zxj_ReplaceHtml(string patrn, string strRep, string content)
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{
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if (string.IsNullOrEmpty(content))
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{
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content = "";
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}
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Regex rgEx = new Regex(patrn, RegexOptions.IgnoreCase);
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string strTxt = rgEx.Replace(content, strRep);
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return strTxt;
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}
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}
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}
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