C#对html的操作

1，获取相对路径的html然后保存到本地路径

         /// <summary>
        /// Html方法
        /// </summary>
        /// <returns></returns>
        public void CollectionContent(string url)
        {
            Response.ContentType = "html/plain";
            Response.Charset = "gb2312";
            Response.ContentType = "html/html";
            Response.Charset = "utf-8";
            string htmlContent = clsCommonEx.GetPageHtml(url);

            try
            {

                StreamWriter sw = null;
                Encoding code = Encoding.GetEncoding("gb2312");
                string path = HttpContext.Current.Server.MapPath("/cache/");
                string htmlfilename = DateTime.Now.ToString("yyyyMMddHHmmss") + ".html";// 写文件 

                try
                {
                    sw = new StreamWriter(path + htmlfilename, false, code);
                    sw.Write(htmlContent);
                    sw.Flush();
                }
                catch (Exception ex)
                {
                    HttpContext.Current.Response.Write(ex.Message);
                    HttpContext.Current.Response.End();
                }
                finally
                {
                    sw.Close();
                }

            }
            catch
            {
                Response.Write("The file could not be wirte:");
            }

        }

　　

2,生成html

        //生成HTML页
        public static bool WriteFile(string strText, string strContent, string strAuthor)
        {
            string path = HttpContext.Current.Server.MapPath("/news/");
            Encoding code = Encoding.GetEncoding("gb2312");
            // 读取模板文件
            string temp = HttpContext.Current.Server.MapPath("/news/text.html");
            StreamReader sr = null;
            StreamWriter sw = null;
            string str = "";
            try
            {
                sr = new StreamReader(temp, code);
                str = sr.ReadToEnd(); // 读取文件
            }
            catch (Exception exp)
            {
                HttpContext.Current.Response.Write(exp.Message);
                HttpContext.Current.Response.End();
                sr.Close();
            }

            string htmlfilename = DateTime.Now.ToString("yyyyMMddHHmmss") + ".html";
            // 替换内容
            // 这时,模板文件已经读入到名称为str的变量中了
            str = str.Replace("ShowArticle", strText); //模板页中的ShowArticle
            str = str.Replace("biaoti", strText);
            str = str.Replace("content", strContent);
            str = str.Replace("author", strAuthor);
            // 写文件
            try
            {
                sw = new StreamWriter(path + htmlfilename, false, code);
                sw.Write(str);
                sw.Flush();
            }
            catch (Exception ex)
            {
                HttpContext.Current.Response.Write(ex.Message);
                HttpContext.Current.Response.End();
            }
            finally
            {
                sw.Close();
            }
            return true;
        }