C# 过滤html标签

来源：互联网发布：java gc finalize 编辑：程序博客网时间：2024/05/22 03:13

public static string NoHTML(string html) //去除HTML标记

{

System.Text.RegularExpressions.Regex regex1 =

new System.Text.RegularExpressions.Regex(@"<script[sS]+</script *>",

System.Text.RegularExpressions.RegexOptions.IgnoreCase);

System.Text.RegularExpressions.Regex regex2 =

new System.Text.RegularExpressions.Regex(@" href *= *[sS]*script *:",

System.Text.RegularExpressions.RegexOptions.IgnoreCase);

System.Text.RegularExpressions.Regex regex3 =

new System.Text.RegularExpressions.Regex(@" no[sS]*=",

System.Text.RegularExpressions.RegexOptions.IgnoreCase);

System.Text.RegularExpressions.Regex regex4 =

new System.Text.RegularExpressions.Regex(@"<iframe[sS]+</iframe *>",

System.Text.RegularExpressions.RegexOptions.IgnoreCase);

System.Text.RegularExpressions.Regex regex5 =

new System.Text.RegularExpressions.Regex(@"<frameset[sS]+</frameset *>",

System.Text.RegularExpressions.RegexOptions.IgnoreCase);

System.Text.RegularExpressions.Regex regex6 =

new System.Text.RegularExpressions.Regex(@"<img[^>]+>",

System.Text.RegularExpressions.RegexOptions.IgnoreCase);

System.Text.RegularExpressions.Regex regex7 =

new System.Text.RegularExpressions.Regex(@"</p>",

System.Text.RegularExpressions.RegexOptions.IgnoreCase);

System.Text.RegularExpressions.Regex regex8 =

new System.Text.RegularExpressions.Regex(@"<p>",

System.Text.RegularExpressions.RegexOptions.IgnoreCase);

System.Text.RegularExpressions.Regex regex9 =

new System.Text.RegularExpressions.Regex(@"<[^>]*>",

System.Text.RegularExpressions.RegexOptions.IgnoreCase);

html = regex1.Replace(html, ""); //过滤<script></script>标记

html = regex2.Replace(html, ""); //过滤href=javascript: (<A>) 属性

html = regex3.Replace(html, " _disibledevent="); //过滤其它控件的on...事件

html = regex4.Replace(html, ""); //过滤iframe

html = regex5.Replace(html, ""); //过滤frameset

html = regex6.Replace(html, ""); //过滤frameset

html = regex7.Replace(html, ""); //过滤frameset

html = regex8.Replace(html, ""); //过滤frameset

html = regex9.Replace(html, "");

//html = html.Replace(" ", "");

html = html.Replace("</strong>", "");

html = html.Replace("<strong>", "");

html = Regex.Replace(html, "[\f\n\r\t\v]", ""); //过滤回车换行制表符

return html;

}

0 0