生成静态文件的新闻系统核心代码（.net C#）

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Configuration;
using System.Data.OleDb;
using System.Drawing;
using System.Web;
using System.IO;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

namespace makehtmlfile
{
 /// <summary>
 /// makefile2 的摘要说明。
 /// </summary>
 public class makefile2 : System.Web.UI.Page
 {
  public string strcon;
  public OleDbConnection conn;
  
  public string class1id;
  public string class2id;
  //***********************************
  public string previd;
  public string prevtitle;
  public string nextid;
  public string nexttitle;
  //***********************************
  public string newstitle;
  public string newscontent;
  public string newsdate;
  public string newsip;
  public string newsid;
  //************************************

  private void Page_Load(object sender, System.EventArgs e)
  {
   strcon    = "provider=Microsoft.jet.OLEDB.4.0;data Source="+Server.MapPath(ConfigurationSettings.AppSettings["MDBpath2"])+";";//连接字符窜// 在此处放置用户代码以初始化页面
   if(Request.Params["id"]!=null&&Request.Params["class1id"]!=null&&Request.Params["class2id"]!=null)
   {
    InitialPages();

   }// 在此处放置用户代码以初始化页面
  }

  public void InitialPages()
  {
   strcon    = "provider=Microsoft.jet.OLEDB.4.0;data Source="+Server.MapPath(ConfigurationSettings.AppSettings["MDBpath2"])+";";
   
   if(Request.Params["id"]!=null)
   {
    newsid  = Request.Params["id"].ToString();
   }
   if(Request.Params["class1id"]!=null)
   {
    class1id  = Request.Params["class1id"].ToString();
   }
   if(Request.Params["class2id"]!=null)
   {
    class2id  = Request.Params["class2id"].ToString();
   }
   ReadDataBase(newsid,class2id);
   MakeHtmlFile(newsid,class1id,class2id);
  }

  /// <summary>
  /// 读写同一分类中，上一篇，和下一篇文章
  /// </summary>
  /// <param name="inputid"> 该文章ID</param>
  /// <param name="class2id">该文章所属分类ID</param>
  public void ReadPrevAndNext(string inputid,string class2id)
  {
   int               id                 =    int.Parse(inputid);
   string            strPrevSQL         =    "select top 1 id,newstitle,newsdate from news where class2id='"+ class2id +"' and id<"+id+" order by id desc";
   string            strNextSQL         =    "select top 1 id,newstitle,newsdate from news where class2id='"+ class2id +"' and id>"+id+" order by id asc";
   OleDbDataReader   datar              =    null;
   OleDbConnection con       = new OleDbConnection(strcon);
   con.Open();
   OleDbCommand newcommand   = new OleDbCommand(strPrevSQL,con);
   datar                     = newcommand.ExecuteReader();
   while(datar.Read())
   {
    previd    =  datar["id"].ToString();
    prevtitle =  datar["newstitle"].ToString();
   }
   datar.Close();
   newcommand.CommandText = strNextSQL ;
   datar                  = newcommand.ExecuteReader();
   while(datar.Read())
   {
    nextid     =  datar["id"].ToString();
    nexttitle  =  datar["newstitle"].ToString();
   }
   con.Close();

  }

  /// <summary>
  /// 将文章信息从库中读出，并将准备生成的HTML文件路径写入库中
  /// </summary>
  /// <param name="inputid"></param>
  /// <param name="class2id"></param>
  public void ReadDataBase(string inputid,string class2id)
  {
   string filename_w = MakeFileName(class1id,class2id,newsid)+".htm";
   
   ReadPrevAndNext(inputid,class2id);       //读取下一篇和上一篇的信息。

   OleDbConnection mycon  = new OleDbConnection(strcon);          //打开数据库连接
   mycon.Open();

   int              id    = int.Parse(inputid);
   string       strSQL    = "select * from news where id="+id;
   OleDbDataReader  dr    = null;
   OleDbCommand mycommand = new OleDbCommand(strSQL,mycon);
   dr                     = mycommand.ExecuteReader();
   while(dr.Read())
   {
    newstitle   = dr["newstitle"].ToString();
    newscontent = dr["newscontent"].ToString();
    newsdate    = dr["newsdate"].ToString();
    newsip      = dr["newsip"].ToString();
   }
   dr.Close();
   mycommand.CommandText = "update news set url='"+ filename_w +"' where id="+int.Parse(inputid);   //将生成的文件路径写入库中,以遍在生成分类页中方便使用
   mycommand.ExecuteNonQuery();
   mycon.Close();
   
  }

  /// <summary>
  /// 生成目标目录和文件，主要用来生成不同分类的目录
  /// </summary>
  /// <param name="inputstr"></param>
  /// <returns></returns>
  public string MakeCatalogName(string class1,string class2)            //生成目标目录文件
  {
   string namestr   = "Article";
   string rootstr   = Server.MapPath(".").ToString();
   string class1str  = rootstr + "\\" + namestr + "_" + class1 + "\\";
   string class2str  = rootstr + "\\" + namestr + "_" + class1 + "\\" + namestr + "_" + class2 + "\\";
   if(!Directory.Exists(class1str))
   {
    Directory.CreateDirectory(class1str);
   }
   if(!Directory.Exists(class2str))
   {
    Directory.CreateDirectory(class2str);
   }
              //创建目标文件夹
   return class2str;
  }

  /// <summary>
  /// 根据文章分类和ID生成文件名
  /// </summary>
  /// <param name="class1id"></param>
  /// <param name="class2id"></param>
  /// <param name="nid"></param>
  /// <returns>返回文件名</returns>
  public string MakeFileName(string class1,string class2,string id)    //生成文件名，能够生成上下篇
  {
   string myclass2id    = class2;
   string myclass1id    = class1;
   string s             = DateTime.Now.Year.ToString()
    +DateTime.Now.Month.ToString()
    +DateTime.Now.Day.ToString()
    +"_"
    +myclass1id 
    +"_"
    +myclass2id                         //父类ID
    +"_"
    +id;                               //新闻ID
   return s;
  }

  /// <summary>
  /// 生成HTML文件
  /// </summary>
  /// <param name="nid">文章ID号</param>
  public void MakeHtmlFile(string nid,string cla1id,string cla2id)                      //  MakeHtmlFile(string nid,string cla1id,string cla2id,string filetemp)  用于区分不同的摸班
  {
   string file_path            =   Server.MapPath ("template/news_mb.htm");
   string desfilename          =   MakeFileName(cla1id,cla2id,nid)+".htm";
   string desfile              =   MakeCatalogName(cla1id,cla2id)+MakeFileName(cla1id,cla2id,nid)+".htm";
   string prevurl              =   MakeFileName(cla1id,cla2id,previd)+".htm";                 //根据分类和ID生成上下篇的文件连接名
   string nexturl              =   MakeFileName(cla1id,cla2id,nextid)+".htm";                 //下篇
   System.Text.Encoding code   =   System.Text.Encoding.GetEncoding("gb2312");
  
   StreamReader srd            =   null;        //读
   StreamWriter swr            =   null;        //写
  
   string strFile              =   null ;       //字符串
  
   try
   {
    srd                     =   new StreamReader(file_path, code);
    strFile                 =   srd.ReadToEnd(); // 读取文件
   }
   catch(Exception exp)
   {
    HttpContext.Current.Response.Write(exp.Message);
    HttpContext.Current.Response.End();
    srd.Close();
   }
  
   strFile = strFile.Replace("$title$",newstitle);
   strFile = strFile.Replace("$content$",newscontent);
   strFile = strFile.Replace("$date$",newsdate);
   strFile = strFile.Replace("$ip$",newsip);
   strFile = strFile.Replace("$prev$",prevtitle);
   strFile = strFile.Replace("$next$",nexttitle);
   strFile = strFile.Replace("$prevurl$",prevurl);
   strFile = strFile.Replace("$nexturl$",nexturl);
 
   try
   {
    swr = new StreamWriter(desfile,false,code);
    swr.Write(strFile);
    swr.Flush();
   }
   catch(Exception ex)
   {
    HttpContext.Current.Response.Write(ex.Message);
    HttpContext.Current.Response.End();
   }
   finally
   {
    swr.Close();
   }
   if(srd!=null)
   {
    srd.Close();
   }
   Response.Write(desfilename);

  }

  public void Open()
  {
   if(conn==null)
   {
    conn = new OleDbConnection(strcon);
    conn.Open();
   }
  }
  public void Close()
  {
   if(conn!=null)
   {
    conn.Close();
   }
  }

  #region Web 窗体设计器生成的代码
  override protected void OnInit(EventArgs e)
  {
   //
   // CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
   //
   InitializeComponent();
   base.OnInit(e);
  }
  
  /// <summary>
  /// 设计器支持所需的方法 - 不要使用代码编辑器修改
  /// 此方法的内容。
  /// </summary>
  private void InitializeComponent()
  {   
   this.Load += new System.EventHandler(this.Page_Load);
  }
  #endregion
 }
}