清除文本中Html的标签

最新推荐文章于 2021-06-19 12:13:03 发布

旧麋鹿

最新推荐文章于 2021-06-19 12:13:03 发布

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文章标签：富文本编辑器 ASP.NET

本文链接：https://blog.youkuaiyun.com/qq_38225873/article/details/82184300

版权

    /// <summary>  
    /// 清除文本中Html的标签  
    /// </summary>  
    /// <param name="Content"></param>  
    /// <returns></returns>  
    protected string ClearHtml(string Content)
    {
        Content = Zxj_ReplaceHtml("&#[^>]*;", "", Content);
        Content = Zxj_ReplaceHtml("</?marquee[^>]*>", "", Content);
        Content = Zxj_ReplaceHtml("</?object[^>]*>", "", Content);
        Content = Zxj_ReplaceHtml("</?param[^>]*>", "", Content);
        Content = Zxj_ReplaceHtml("</?embed[^>]*>", "", Content);
        Content = Zxj_ReplaceHtml("</?table[^>]*>", "", Content);
        //Content = Zxj_ReplaceHtml(" ", "", Content);
        Content = Zxj_ReplaceHtml("</?tr[^>]*>", "", Content);
        Content = Zxj_ReplaceHtml("</?th[^>]*>", "", Content);
        Content = Zxj_ReplaceHtml("</?p[^>]*>", "", Content);
        Content = Zxj_ReplaceHtml("</?a[^>]*>", "", Content);
        //Content = Zxj_ReplaceHtml("</?img[^>]*>", "", Content);
        Content = Zxj_ReplaceHtml("</?tbody[^>]*>", "", Content);
        Content = Zxj_ReplaceHtml("</?li[^>]*>", "", Content);
        Content = Zxj_ReplaceHtml("</?span[^>]*>", "", Content);
        Content = Zxj_ReplaceHtml("</?div[^>]*>", "", Content);
        Content = Zxj_ReplaceHtml("</?th[^>]*>", "", Content);
        Content = Zxj_ReplaceHtml("</?td[^>]*>", "", Content);
        Content = Zxj_ReplaceHtml("</?script[^>]*>", "", Content);
        Content = Zxj_ReplaceHtml("(javascript|jscript|vbscript|vbs):", "", Content);
        Content = Zxj_ReplaceHtml("on(mouse|exit|error|click|key)", "", Content);
        Content = Zxj_ReplaceHtml("<\\?xml[^>]*>", "", Content);
        Content = Zxj_ReplaceHtml("<\\/?[a-z]+:[^>]*>", "", Content);
        Content = Zxj_ReplaceHtml("</?font[^>]*>", "", Content);
        Content = Zxj_ReplaceHtml("</?b[^>]*>", "", Content);
        //Content = Zxj_ReplaceHtml("</?u[^>]*>", "", Content);
        //Content = Zxj_ReplaceHtml("</?i[^>]*>", "", Content);
        Content = Zxj_ReplaceHtml("</?strong[^>]*>", "", Content);
        string clearHtml = Content;
        return clearHtml;
    }

    /// <summary>  
    /// 清除文本中的Html标签  
    /// </summary>  
    /// <param name="patrn">要替换的标签正则表达式</param>  
    /// <param name="strRep">替换为的内容</param>  
    /// <param name="content">要替换的内容</param>  
    /// <returns></returns>  
    private string Zxj_ReplaceHtml(string patrn, string strRep, string content)
    {
        if (string.IsNullOrEmpty(content))
        {
            content = "";
        }
        Regex rgEx = new Regex(patrn, RegexOptions.IgnoreCase);
        string strTxt = rgEx.Replace(content, strRep);
        return strTxt;
    }