用ASP.NET读取模板生成HTML
 

 

模板HTML

模板

 

首先设置类的全局变量,设置文件路径和编码

 public Encoding code = Encoding.GetEncoding("gb2312");//定义文字编码 UTF-8
    public string path;//定义html文件存放路径 
    // 读取模板文件 
    public string temp;

    ///<summary>
    /// 
    ///</summary>
    ///<param name="FilePath">"./lucklist/"</param>
    ///<param name="TemplatePath">"./lucklist/Main.html"</param>
    public CreateHtml(string FilePath, string TemplatePath)
    {
        path = HttpContext.Current.Server.MapPath(FilePath);//定义html文件存放路径
        temp = HttpContext.Current.Server.MapPath(TemplatePath);//定义模板路径
    }


然后就是类的主要代码,再使用的时候就调用这个类

///<summary>
    /// 创建HTML网页
    ///</summary>
    ///<param name="ds">dataset</param>
    ///<param name="PageSize">一页的记录数量</param>
    ///<param name="FileName">文件名,如0824-</param>
    ///<param name="FileNameExt">如rd</param>
    ///<param name="FileType">html</param>
    ///<param name="ReplaceData">string[] 类型的文件存放"XX,XX"</param>
    ///<param name="IndexCount">分页导航栏的数字长度1,2,3,4,5</param>
    ///<param name="anchor">锚点#xxxx</param>
    ///<param name="ReplaceString">需要替换的其他字符串,注意:全部替换</param>
    ///<returns></returns>
    public bool CreateHtmlFile(DataSet ds, int PageSize, string FileName, string FileNameExt, string FileType, string[] ReplaceData, int IndexCount, string anchor, string[] ReplaceString)
    {
        string str = ReadHtmlFile(temp);
        string tempStr = str;  //备份改写前的模板HTML文件

        int count = ds.Tables[0].Rows.Count; //数据条数
        int PageCount = count / PageSize + (count % PageSize == 0 ? 0 : 1); //页面数量

        //string FileName = "0824";  //0824+1+rd.html
        //string FileNameExt = "rd";
        //string FileType = "html"


        //循环页面的数量
        for (int SelectPage = 1; SelectPage <= PageCount; SelectPage++)
        {
            //整合出来的文件名
            string htmlfilename = path + FileName + SelectPage.ToString() + FileNameExt + "." + FileType;

            //从Dataset中读取指定数量的条目替换HTML文件
            for (int i = (SelectPage - 1) * PageSize; i < SelectPage * PageSize; i++)
            {
                if (i < count) //判断不会超过索引
                {
                    //获得参数
                    foreach (string RepS in ReplaceData)
                    {
                        string[] data = RepS.Split(',');
                        //data[0]为#Name 
                        //data[1]为数据库对应字段,如UserName
                        str = new Regex(data[0]).Replace(str, ds.Tables[0].Rows[i][data[1]].ToString(), 1);
                    }
                    //Regex Regex1 = new Regex("#Name");
                    //str = Regex1.Replace(str, ds.Tables[0].Rows[i]["UserName"].ToString(), 1);
                    //Regex Regex2 = new Regex("#Time");
                    //str = Regex2.Replace(str, ds.Tables[0].Rows[i]["Time"].ToString().Substring(11, 5), 1);
                    //Regex Regex3 = new Regex("#LuckName");
                    //str = Regex3.Replace(str, ds.Tables[0].Rows[i]["Score"].ToString(), 1);
                }
                else
                    //超出索引的全部删掉
                    foreach (string RepS in ReplaceData)
                    {
                        string[] data = RepS.Split(',');
                        //data[0]为#Name
                        //data[1]为数据库对应字段,如UserName
                        str = new Regex(data[0]).Replace(str, "", 1);
                    }
            }


            foreach (string RepString in ReplaceString)
            {
                string[] data = RepString.Split(',');
                //data[0]为#Select3 
                //data[1]为替换字段
                str = str.Replace(data[0], data[1]);
            }

            Regex Regex4 = new Regex("#Page");
            str = Regex4.Replace(str, GetNavigate(count, PageSize, IndexCount, SelectPage, FileType + anchor, FileName, FileNameExt));


            WriteHtmlFile(str, htmlfilename);
            str = tempStr;
        }
        return true;
    }

需要用到的子方法

读取HTML 
///<summary>
    /// 读取HTML文件
    ///</summary>
    ///<param name="temp">HttpContext.Current.Server.MapPath("./lucklist/Main.html");</param>
    ///<returns></returns>
    public string ReadHtmlFile(string temp)
    {
        StreamReader sr = 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();
        }
        finally
        {
            sr.Dispose();
            sr.Close();

        }
        return str;
    }
写入HTML 
///<summary>
    /// 写入HTML文件
    ///</summary>
    ///<param name="str">HTML代码</param>
    ///<param name="htmlfilename">完整带路径的文件名</param>
    ///<returns></returns>
    public bool WriteHtmlFile(string str, string htmlfilename)
    {
        StreamWriter sw = null;
        // 写文件 
        try
        {
            sw = new StreamWriter(htmlfilename, false, code);
            sw.Write(str);
            sw.Flush();
        }
        catch (Exception ex)
        {
            HttpContext.Current.Response.Write(ex.Message);
            HttpContext.Current.Response.End();
        }
        finally
        {
            sw.Dispose();
            sw.Close();
        } return true;
    }
生成导航栏 
///<summary>
    /// 生成分页导航条
    ///</summary>
    ///<param name="totalRecord">总记录数</param>
    ///<param name="pageSize">页面记录数</param>
    ///<param name="DistLen">数字长度</param>
    ///<param name="page">当前页数</param>
    ///<param name="QueryParametet">URL参数</param>
    ///<param name="scriptName">页名前缀</param>
    ///<returns></returns>
    public static string GetNavigate(int totalRecord, int pageSize, int DistLen, int page, string QueryParameter, string scriptName, string extName)
    {

        int pageNum; //页面数量
        string HTML = "";
        if ((totalRecord % pageSize) != 0)
            pageNum = (totalRecord / pageSize) + 1;
        else
            pageNum = totalRecord / pageSize;

        if (pageNum < 1)
            return HTML;
        //统计信息
        HTML += "显示" + ((page - 1) * pageSize + 1) + "━";
        if (page >= pageNum)
            HTML += totalRecord + "条";
        else
            HTML += page * pageSize + "条";

        HTML += "共<B>" + totalRecord + "</B>条 " + pageSize + "条/页";

        //首页,上一页
        if (page > 1)
        {
            HTML += "<a href=\"" + scriptName + "1" + extName + "." + QueryParameter + "\"  > 首  页 </a>";

            HTML += "<a href=\"" + scriptName + (page - 1) + extName + "." + QueryParameter + "\" > 上一页 </a>";
        }

        //数字序列
        int page_t;
        if (page < DistLen * 2)
        {
            if (pageNum > DistLen * 2)

                page_t = DistLen * 2;
            else
                page_t = pageNum;

            for (int i = 1; i <= page_t; i++)
            {
                if (i == page)
                    HTML += "<B>&nbsp;" + page + "</B>";
                else
                    HTML += "<a href=\"" + scriptName + i + extName + "." + QueryParameter + "\">&nbsp;" + i + "</a>";

            }
        }
        else
        {
            if (pageNum > (page + DistLen))
                page_t = page + DistLen;
            else
                page_t = pageNum;

            for (int i = (page - DistLen); i <= page_t; i++)
            {
                if (i == page)
                    HTML += "<B>&nbsp;" + page + "</B>";
                else
                    HTML += "<a href=\"" + scriptName + i + extName + "." + QueryParameter + "\" >&nbsp;" + i + "</a>";

            }

        }
        //下一页,尾页
        if (page < pageNum)
        {
            HTML += "<a href=\"" + scriptName + (page + 1) + extName + "." + QueryParameter + "\" > 下一页 </a>";
            HTML += "<a href=\"" + scriptName + pageNum + extName + "." + QueryParameter + "\" > 尾页 </a>";
        }

        return HTML;
    }

 

然后再在调用类生成HTML

        //读取数据库,放入ds
        DataSet ds = new DataSet();
        LuckSql lsql = new LuckSql();

        ds = lsql.temp1();
     
        //实例化设置路径
        CreateHtml ch = new CreateHtml("./", "./Main.html");
        
        //设置模板中需要替换的字段,#Name是模板中的字段,Name是ds中的字段
        string[] ReplaceData = new string[3];
        ReplaceData[0] = "#Name,Name";
        ReplaceData[1] = "#Time,Time";
        ReplaceData[2] = "#LuckName,luckname";

        //替换非数据库中的字段 ,模板中的任何位置都可以,这个部分模板里忘记添加了,可以略过
        string[] ReplaceString = new string[1];
        ReplaceString[0] = "#Select3Index,替换字段";
       
        //生成,锚点不需要的话就填""
        ch.CreateHtmlFile(ds, 32, "0824-", "-rd", "html", ReplaceData, 6, "#mid", ReplaceString);


注意的是:

模板最好和css样式和调用类的页面放在同一个文件,模板的样式放在css里面最好,不然生成十多页改起来麻烦.

编码默认是gb2312,当然随便你.中文还是gb2312比较好吧.

模板中数据的条目一定要和"32"的位置对应 ch.CreateHtmlFile(ds, 32, "0824-", "-rd", "html", ReplaceData, 6, "#mid", ReplaceString);

不然数据条目对不上号的.

 posted on 2011-11-25 11:14  纳米程序员  阅读(472)  评论(0)  编辑  收藏  举报