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ASP.NET生成静态页面和分页主要的原理就是替换模板里的特殊字符。
2008年05月14日 星期三 11:19

ASP.NET生成静态页面和分页主要的原理就是替换模板里的特殊字符。

1、静态模板页面 template.html,主要是定义了一些特殊字符,用来被替换。

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=gb2312">

<title>$Title</title>

</head>

<body>

    <div style="width: 417px; height: 54px" align="center">

    <br />

    $Title

    </div>

    <div style="width: 417px; height: 8px"> 浏览<font color="red"><script src="http://localhost/.Net/NewsFiles/ClickCount.aspx?NewsId=$NewsId"></script></font>次 $Time</div>
   
    <div style="width: 417px; height: 100px">$Content</div>

    <div style="width: 416px; height: 9px">$Pager</div>

    <div style="width: 416px; height: 8px">

    <form id="form1" action="../AddComment.aspx" style="margin:0px">

        <input id="Text1" type="text" /><Img id="Image1" src="../../UserInfo/CheckCode.aspx"/><br />

        <textarea id="CommentContent" cols="20" rows="2"></textarea>

        <br />

        <input id="NewsId" type="hidden" value="$NewsId"/>

        <input id="Button1" type="submit" value="button" />

        <a href="../Display.aspx?NewsId=$NewsId">查看更多评论</a>
    </form>
    </div>
</body>
</html>

2、前态页面 NewsAdd.aspx,就是一个表单,用来填写新闻的标题和内容。

<%...@ Page Language="C#" AutoEventWireup="false" validateRequest="false" CodeFile="NewsAdd.aspx.cs" Inherits="NewsAdd.Admin_AdminPanel_NewsAdd" %>

<%...@ Register TagPrefix="FCKeditorV2" Namespace="FredCK.FCKeditorV2" Assembly="FredCK.FCKeditorV2" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >

<head runat="server">

    <title>添加新闻</title>

</head>

<body>

    <form id="form1" runat="server">

    <div>

        <asp:Label ID="Label2" runat="server" Text="标题"></asp:Label>

        <asp:TextBox ID="Title" runat="server" Width="325px"></asp:TextBox><br />

        <asp:Label ID="Label1" runat="server" Text="内容"></asp:Label>

    <FCKeditorV2:FCKeditor id="Content" basePath="~/FCKeditor/" runat="server" Height="400px" Width="70%"></FCKeditorV2:FCKeditor>

        <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Button" />

        <asp:Label ID="Message" runat="server" ></asp:Label></div>

    </form>

</body>

</html>

3、后台页面 NewsAdd.aspx.cs

using System;

using System.Data;

using System.Configuration;

using System.Collections;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using Mysqlserver;

using System.IO;

using System.Text;

namespace NewsAdd

...{

    public partial class Admin_AdminPanel_NewsAdd : System.Web.UI.Page

    ...{

        protected void Page_Load(object sender, EventArgs e)

        ...{

        }

        protected void Button1_Click(object sender, EventArgs e)

        ...{

            string strDate = DateTime.Now.ToString("yyMMdd") + "\" + DateTime.Now.ToString("yyyymmddhhmmss");

            string strFileName = strDate + ".shtml"; //存储到数据库中

            string strTitle=Request.Form["Title"].ToString().Trim(); //接收传过来的标题

            string strContent=Request.Form["Content"].ToString().Trim(); //接收传过来的内容

            string[] content = strContent.Split(new Char[] ...{'|'}); //对内容进行拆分,并保存到数组

            int upbound = content.Length; //数组的上限

            SqlServerDataBase db = new SqlServerDataBase();

            bool success = db.Insert("insert into inNews(Title,Content,FilePath)values('" + strTitle + "','" + strContent + "','" + strFileName + "')", null);

            //if (success)

            // Message.Text = "添加成功!";

           /**////////////////////////////创建当前日期的文件夹开始

            string dir = Server.MapPath("../../"+"NewsFiles/"+DateTime.Now.ToString("yyMMdd")); //用来生成文件夹

            if (!Directory.Exists(dir))

            ...{

                Directory.CreateDirectory(dir);

            }

           /**////////////////////////////创建当前日期的文件夹结束

            try

            ...{

            for (int i = 0; i < content.Length; i++)

            ...{

            //string[] newContent = new string[4]; //定义和html标记数目一致的数组

            StringBuilder strhtml = new StringBuilder();

                //创建StreamReader对象

                using (StreamReader sr = new StreamReader(Server.MapPath("../../" + "NewsFiles/") + "\template.html",Encoding.GetEncoding("gb2312")))

                ...{

                    String oneline;

                    //读取指定的HTML文件模板

                    while ((oneline = sr.ReadLine()) != null)

                    ...{

                        strhtml.Append(oneline);

                    }

                    sr.Close();

                }

            //为标记数组赋值

            //SqlServerDataBase db = new SqlServerDataBase();

            DataSet ds = db.Select("select top 1 NewsId from inNews order by NewsId desc", null); //获取id

            string strTable = "<table><tr><td>$upUrl</td><td>$Number</td><td>$downUrl</td></tr></table>";//上下页表格,注意此处的$upUrl(上一页),$Number(页码分页),$downUrl(下一页)

            //这三个是用来替换的。

                string FilePath="";

                strhtml = strhtml.Replace("$Title", strTitle);

                strhtml = strhtml.Replace("$NewsId", ds.Tables[0].Rows[0]["NewsId"].ToString());

                strhtml = strhtml.Replace("$Time", DateTime.Now.ToString("yyyy/MM/dd"));

                strhtml = strhtml.Replace("$Content", content[i]);

                string strNumber = ""; //数字分页1,2,3……

                for (int m = 1; m <=upbound; m++)

                ...{

                    if (m == 1) //如果是第一页就显示成这个样子:20070524.shtml而不是20070524_1.shtml

                        strNumber = strNumber + " ["+"<a href=" + "../" + strDate + ".shtml" + ">" + m + "</a>"+"] ";

                    else

                    ...{

                        int n = m - 1; //第三页的连接应该是20070524_2.shtml,以此类推

                        strNumber = strNumber + " [" +"<a href=" + "../" + strDate + "_" + n + ".shtml" + ">" + m + "</a>"+"] ";

                    }

                }

                    if (upbound == 0) //如果没有分页,就直接按日期时间保存

                    ...{

                        FilePath = Server.MapPath("../../") + "NewsFiles" + "//" + strDate + ".shtml";

                        strhtml = strhtml.Replace("$Pager", "");

                    }

                    else //否则按20070524.shtml、20070524_1.shtml 这种效果保存

                    ...{

                        if (i == 0)

                            FilePath = Server.MapPath("../../") + "NewsFiles" + "//" + strDate + ".shtml";

                        else

                            FilePath = Server.MapPath("../../") + "NewsFiles" + "//" + strDate + "_" + i + ".shtml";

                       

                        if (i == 0) //第一页不显示上一页

                            strTable = strTable.Replace("$upUrl", "");

                        if (i <= 1) //上一页分页

                            strTable = strTable.Replace("$upUrl", "<a href=" + "../" + strDate + ".shtml" + ">上一页</a>");

                        else

                        ...{

                            int p = i - 1;

                            strTable = strTable.Replace("$upUrl", "<a href=" + "../" + strDate + "_" + p + ".shtml" + ">上一页</a>");

                        }

                       

                        if(upbound==1) //如果只有一页,则不显示页码

                        //strNumber="";

                        strTable = strTable.Replace("$Number", "");

                        else

                        strTable = strTable.Replace("$Number", strNumber); //页码替换

                        /**/////////////////////////

                        if(i==upbound-1) //最后一页不显示下一页

                            strTable = strTable.Replace("$downUrl", "");

                        if (i != upbound - 1) //下一页分页

                        ...{

                            int q = i + 1;

                            strTable = strTable.Replace("$downUrl", "<a href=" + "../" + strDate + "_" + q + ".shtml" + ">下一页</a>");

                        }

                        else

                        ...{

                            int j = upbound - 1;

                            strTable = strTable.Replace("$downUrl", "<a href=" + "../" + strDate + "_" + j + ".shtml" + ">下一页</a>");

                        }

                        strhtml = strhtml.Replace("$Pager", strTable);

                    }

               //创建文件信息对象--------------------------------------------

                FileInfo finfo = new FileInfo(FilePath);

                //以打开或者写入的形式创建文件流

                using (FileStream fs = finfo.OpenWrite())

                ...{

                    //根据上面创建的文件流创建写数据流

                    StreamWriter sw = new StreamWriter(fs, System.Text.Encoding.Default);

                   //把新的内容写到创建的HTML页面中

                    sw.WriteLine(strhtml);

                    sw.Flush();

                    sw.Close();

                }

            }

        }

        catch (Exception err)

        ...{

            //输出异常信息

            Response.Write(err.ToString());

        }

        }

}

}

请不要直接拷贝使用,里面的路径需要更改,但程序绝对没问题,在我本地已经测试通过。

另外在使用时,比如我要把新闻的内容分成4页,就应该这样写:111|222|333|444。


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