public string checkStr(string html)
{
System.Text.RegularExpressions.Regex regex1 = new System.Text.RegularExpressions.Regex(@”<script[\\s\\S]+</script *>”, System.Text.RegularExpressions.RegexOptions.IgnoreCase);
System.Text.RegularExpressions.Regex regex2 = new System.Text.RegularExpressions.Regex(@” href *= *[\\s\\S]*script *:”, System.Text.RegularExpressions.RegexOptions.IgnoreCase);
System.Text.RegularExpressions.Regex regex3 = new System.Text.RegularExpressions.Regex(@” no[\\s\\S]*=”, System.Text.RegularExpressions.RegexOptions.IgnoreCase);
System.Text.RegularExpressions.Regex regex4 = new System.Text.RegularExpressions.Regex(@”<iframe[\\s\\S]+</iframe *>”, System.Text.RegularExpressions.RegexOptions.IgnoreCase);
System.Text.RegularExpressions.Regex regex5 = new System.Text.RegularExpressions.Regex(@”<frameset[\\s\\S]+</frameset *>”, System.Text.RegularExpressions.RegexOptions.IgnoreCase);
System.Text.RegularExpressions.Regex regex6 = new System.Text.RegularExpressions.Regex(@”\\<img[^\\>]+\\>”, System.Text.RegularExpressions.RegexOptions.IgnoreCase);
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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>”, “”);
return html;
}
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来源:cnblogs
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