静态页操作

namespace Zxq.Common
{
    //郑希强
    //www.cnblogs.com/zhengxiqiang
    //生成静态页操作
    //2009.2
    public class ToHtml
    {
        #region 读取模板
        /// <summary>
        /// 读取模板
        /// </summary>
        /// <param name="templateUrl">模板地址</param>
        /// <param name="coding">编码</param>
        /// <returns>模板内容</returns>
        public string ReadTemplate(string templateUrl, Encoding code)
        {
            string tlPath = System.Web.HttpContext.Current.Server.MapPath(templateUrl);
            StreamReader sr = null;
            string str = null;
            //读取模板内容
            try
            {
                sr = new StreamReader(tlPath, code);
                str = sr.ReadToEnd();
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                sr.Close();
            }
            return str;
        }
        #endregion

        #region 生成文件
        /// <summary>
        /// 生成文件
        /// </summary>
        /// <param name="str">文件内容</param>
        /// <param name="htmlFile">文件存放地址</param>
        /// <param name="fileName">文件名</param>
        /// <param name="coding">编码</param>
        /// <returns>文件名</returns>
        public bool CreateHtml(string str, string htmlFile, string fileName, Encoding code)
        {
            StreamWriter sw = null;
            bool a = false;
            //写入生成
            try
            {
                htmlFile = System.Web.HttpContext.Current.Server.MapPath(htmlFile);
                this.FolderCreate(htmlFile);
                sw = new StreamWriter(htmlFile + fileName, false, code);
                sw.Write(str);
                sw.Flush();
                a = FileExists(htmlFile + fileName);
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                sw.Close();
            }
            return a;
        }
        #endregion

        #region 判断文件是否存在
        /// <summary>
        /// 判断文件是否存在
        /// </summary>
        /// <param name="FilePath">文件路径</param>
        /// <returns></returns>
        public bool FileExists(string FilePath)
        {
            if (System.IO.File.Exists(FilePath))
                return true;
            else
                return false;
        }
        #endregion

        #region 创建目录
        /// <summary>
        /// 创建目录
        /// </summary>
        /// <param name="Path"></param>
        /// <returns></returns>
        public bool FolderCreate(string Path)
        {
            // 判断目标目录是否存在如果不存在则新建之
            if (!FolderExists(Path))
                Directory.CreateDirectory(Path);
            return FolderExists(Path);
        }
        #endregion

        #region 判断目录是否存在
        /// <summary>
        /// 判断目录是否存在
        /// </summary>
        /// <param name="Path">路径</param>
        /// <returns></returns>
        public bool FolderExists(string Path)
        {
            if (Directory.Exists(Path))
                return true;
            else
                return false;
        }
        #endregion

        #region 静态列表页分页
        /// <summary>
        /// 静态列表页分页
        /// </summary>
        /// <param name="pageCount">总页数</param>
        /// <param name="currentPage">当前页</param>
        /// <param name="prefix">如:list</param>
        /// <param name="suffix">如:.shtml</param>
        /// <returns></returns>
        public string GetHtmlPager(int pageCount, int currentPage, string prefix, string suffix)
        {
            int stepNum = 4;
            int pageRoot = 1;
            pageCount = pageCount == 0 ? 1 : pageCount;
            currentPage = currentPage == 0 ? 1 : currentPage;
            StringBuilder sb = new StringBuilder();
            sb.Append("<ul>");
            sb.Append("<li class=pagerTitle>&nbsp;分页&nbsp;" + currentPage.ToString() + "/" + pageCount.ToString() + "&nbsp;</li>\r");
            if (currentPage - stepNum < 2)
                pageRoot = 1;
            else
                pageRoot = currentPage - stepNum;
            int pageFoot = pageCount;
            if (currentPage + stepNum >= pageCount)
                pageFoot = pageCount;
            else
                pageFoot = currentPage + stepNum;
            if (pageRoot == 1)
            {
                if (currentPage > 1)
                {
                    sb.Append("<li>&nbsp;<a href='" + prefix + "1" + suffix + "' title='首页'>首页</a>&nbsp;</li>\r");
                    sb.Append("<li>&nbsp;<a href='" + prefix + Convert.ToString(currentPage - 1) + suffix + "' title='上页'>上页</a>&nbsp;</li>\r");
                }
            }
            else
            {
                sb.Append("<li>&nbsp;<a href='" + prefix + "1" + suffix + "' title='首页'>首页</a>&nbsp;</li>");
                sb.Append("<li>&nbsp;<a href='" + prefix + Convert.ToString(currentPage - 1) + suffix + "' title='上页'>上页</a>&nbsp;</li>\r");
            }
            for (int i = pageRoot; i <= pageFoot; i++)
            {
                if (i == currentPage)
                {
                    sb.Append("<li class='current'>&nbsp;" + i.ToString() + "&nbsp;</li>\r");
                }
                else
                {
                    sb.Append("<li>&nbsp;<a href='" + prefix + i.ToString() + suffix + "' title='第" + i.ToString() + "页'>" + i.ToString() + "</a>&nbsp;</li>\r");
                }
                if (i == pageCount)
                    break;
            }
            if (pageFoot == pageCount)
            {
                if (pageCount > currentPage)
                {
                    sb.Append("<li>&nbsp;<a href='" + prefix + Convert.ToString(currentPage + 1) + suffix + "' title='下页'>下页</a>&nbsp;</li>\r");
                    sb.Append("<li>&nbsp;<a href='" + prefix + pageCount.ToString() + suffix + "' title='尾页'>尾页</a>&nbsp;</li>\r");
                }
            }
            else
            {
                sb.Append("<li>&nbsp;<a href='" + prefix + Convert.ToString(currentPage + 1) + suffix + "' title='下页'>下页</a>&nbsp;</li>\r");
                sb.Append("<li>&nbsp;<a href='" + prefix + pageCount.ToString() + suffix + "' title='尾页'>尾页</a>&nbsp;</li>\r");
            }
            sb.Append("</ul>");
            return sb.ToString();
        }
        #endregion

        #region 压缩Html文件
        /// <summary>
        /// 压缩Html文件
        /// </summary>
        /// <param name="html">Html文件</param>
        /// <returns></returns>
        public string ZipHtml(string Html)
        {
            Html = Regex.Replace(Html, @">\s+?<", "><");//去除Html中的空白字符.
            Html = Regex.Replace(Html, @"\r\n\s*", "");
            Html = Regex.Replace(Html, @"<body([\s|\S]*?)>([\s|\S]*?)</body>", @"<body$1>$2</body>", RegexOptions.IgnoreCase);
            return Html;
        }
        #endregion

        #region 从HTML中获取文本,保留br,p,img
        /// <summary>
        /// 从HTML中获取文本,保留br,p,img
        /// </summary>
        /// <param name="Html">文本内容</param>
        /// <returns></returns>
        public string GetTextFromHtml(string Html)
        {
            Regex regEx = new Regex(@"</?(?!br|/?p|img)[^>]*>", RegexOptions.IgnoreCase);
            return regEx.Replace(Html, "");
        }
        #endregion
    }
}