几大主存储重复数据删除厂商技术对比
2010-07-06 20:06
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网上看了许多能生成静态页的新闻系统，但基于asp.net的系统极少，闲下时间来自己写了一个，发出来，大家一起研究，代码没做什么优化，只是实现了功能
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Data.OleDb;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Configuration;
namespace makehtmlfile
{
/// <summary><br> /// makeallfiles 的摘要说明。 <br> /// </summary>
public class makeallfiles : System.Web.UI.Page
{
public string strcon;
public OleDbConnection conn;
public string strSQL;
private void Page_Load(object sender, System.EventArgs e)
{
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"])+";";//连接字符窜// 在此处放置用户代码以初始化页面
strSQL = "select id,class1id,class2id from news order by id desc";
MakeAreaForShow();
ReadNewsForWriteFileUserDataReader(); //同过DataReader来读取数据，
//ReadNewsForWriteFileUserDataSet(); //将数据直接挂入DataSet中来读取，
}
/// <summary><br> /// 用来产生循环显示页面的区域，装载生成HTML页的ASPX页面的区域 <br> /// </summary>
public void MakeAreaForShow()
{
Response.Write("");
Response.Write("<download id="oDownload" style="behavior:url(#default#download)"></download>");
}
/// <summary><br> /// 通过DATAREADER来读取数据 <br> /// </summary>
public void ReadNewsForWriteFileUserDataReader()
{
int num = 0 ;
string newsid = null;
string class1id = null;
string class2id = null;
OleDbDataReader dr = null;
OleDbConnection conn = new OleDbConnection(strcon);
conn.Open();
OleDbCommand mycommand = new OleDbCommand(strSQL,conn);
dr = mycommand.ExecuteReader();
while(dr.Read())
{
newsid = dr["id"].ToString();
class1id = dr["class1id"].ToString();
class2id = dr["class2id"].ToString();
WriteJScript(newsid,class1id,class2id);
num++;
}
dr.Close();
conn.Close();
Response.Write(num.ToString());
}
/// <summary><br> /// 通过DATASET来读取数据 <br> /// </summary>
public void ReadNewsForWriteFileUserDataSet()
{
DataSet ds = new DataSet();
int num = 0 ;
string newsid = null;
string class1id = null;
string class2id = null;
OleDbConnection conn = new OleDbConnection(strcon);
conn.Open();
OleDbDataAdapter da = new OleDbDataAdapter(strSQL,conn);
da.Fill(ds,"news");
conn.Close();
num = ds.Tables["news"].Rows.Count;
foreach(DataRow dr in ds.Tables["news"].Rows)
{
newsid = dr["id"].ToString();
class1id = dr["class1id"].ToString();
class2id = dr["class2id"].ToString();
WriteJScript(newsid,class1id,class2id);
}
ds = null;
Response.Write(num.ToString());
}
public void WriteJScript(string newsid,string class1id,string class2id)
{
Response.Write("");
Response.Write("function onDownloadDone(downDate)");
Response.Write("{");
Response.Write("showImport.innerHTML=downDate");
Response.Write("}");
Response.Write("oDownload.startDownload('makefile2.aspx?id=");
Response.Write(newsid);
Response.Write("&class1id=");
Response.Write(class1id);
Response.Write("&class2id=");
Response.Write(class2id);
Response.Write("',onDownloadDone)");
Response.Write("");
}
#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><br> /// 设计器支持所需的方法 - 不要使用代码编辑器修改 <br> /// 此方法的内容。 <br> /// </summary>
private void InitializeComponent()
{
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
}
}
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><br> /// makefile2 的摘要说明。 <br> /// </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><br> /// 读写同一分类中，上一篇，和下一篇文章 <br> /// </summary>
/// 该文章ID
/// 该文章所属分类ID
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 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><br> /// 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 <br> /// </summary>
///
///
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><br> /// 生成目标目录和文件，主要用来生成不同分类的目录 <br> /// </summary>
///
/// <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><br> /// 根据文章分类和ID生成文件名 <br> /// </summary>
///
///
///
/// <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><br> /// 生成HTML文件 <br> /// </summary>
/// 文章ID号
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><br> /// 设计器支持所需的方法 - 不要使用代码编辑器修改 <br> /// 此方法的内容。 <br> /// </summary>
private void InitializeComponent()
{
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
}
}
本文转自
http://www.tot.name/show/3/8/20070515091925.htm
网上看了许多能生成静态页的新闻系统，但基于asp.net的系统极少，闲下时间来自己写了一个，发出来，大家一起研究，代码没做什么优化，只是实现了功能
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Data.OleDb;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Configuration;
namespace makehtmlfile
{
/// <summary><br> /// makeallfiles 的摘要说明。 <br> /// </summary>
public class makeallfiles : System.Web.UI.Page
{
public string strcon;
public OleDbConnection conn;
public string strSQL;
private void Page_Load(object sender, System.EventArgs e)
{
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"])+";";//连接字符窜// 在此处放置用户代码以初始化页面
strSQL = "select id,class1id,class2id from news order by id desc";
MakeAreaForShow();
ReadNewsForWriteFileUserDataReader(); //同过DataReader来读取数据，
//ReadNewsForWriteFileUserDataSet(); //将数据直接挂入DataSet中来读取，
}
/// <summary><br> /// 用来产生循环显示页面的区域，装载生成HTML页的ASPX页面的区域 <br> /// </summary>
public void MakeAreaForShow()
{
Response.Write("");
Response.Write("<download id="oDownload" style="behavior:url(#default#download)"></download>");
}
/// <summary><br> /// 通过DATAREADER来读取数据 <br> /// </summary>
public void ReadNewsForWriteFileUserDataReader()
{
int num = 0 ;
string newsid = null;
string class1id = null;
string class2id = null;
OleDbDataReader dr = null;
OleDbConnection conn = new OleDbConnection(strcon);
conn.Open();
OleDbCommand mycommand = new OleDbCommand(strSQL,conn);
dr = mycommand.ExecuteReader();
while(dr.Read())
{
newsid = dr["id"].ToString();
class1id = dr["class1id"].ToString();
class2id = dr["class2id"].ToString();
WriteJScript(newsid,class1id,class2id);
num++;
}
dr.Close();
conn.Close();
Response.Write(num.ToString());
}
/// <summary><br> /// 通过DATASET来读取数据 <br> /// </summary>
public void ReadNewsForWriteFileUserDataSet()
{
DataSet ds = new DataSet();
int num = 0 ;
string newsid = null;
string class1id = null;
string class2id = null;
OleDbConnection conn = new OleDbConnection(strcon);
conn.Open();
OleDbDataAdapter da = new OleDbDataAdapter(strSQL,conn);
da.Fill(ds,"news");
conn.Close();
num = ds.Tables["news"].Rows.Count;
foreach(DataRow dr in ds.Tables["news"].Rows)
{
newsid = dr["id"].ToString();
class1id = dr["class1id"].ToString();
class2id = dr["class2id"].ToString();
WriteJScript(newsid,class1id,class2id);
}
ds = null;
Response.Write(num.ToString());
}
public void WriteJScript(string newsid,string class1id,string class2id)
{
Response.Write("");
Response.Write("function onDownloadDone(downDate)");
Response.Write("{");
Response.Write("showImport.innerHTML=downDate");
Response.Write("}");
Response.Write("oDownload.startDownload('makefile2.aspx?id=");
Response.Write(newsid);
Response.Write("&class1id=");
Response.Write(class1id);
Response.Write("&class2id=");
Response.Write(class2id);
Response.Write("',onDownloadDone)");
Response.Write("");
}
#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><br> /// 设计器支持所需的方法 - 不要使用代码编辑器修改 <br> /// 此方法的内容。 <br> /// </summary>
private void InitializeComponent()
{
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
}
}
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><br> /// makefile2 的摘要说明。 <br> /// </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><br> /// 读写同一分类中，上一篇，和下一篇文章 <br> /// </summary>
/// 该文章ID
/// 该文章所属分类ID
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 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><br> /// 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 <br> /// </summary>
///
///
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><br> /// 生成目标目录和文件，主要用来生成不同分类的目录 <br> /// </summary>
///
/// <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><br> /// 根据文章分类和ID生成文件名 <br> /// </summary>
///
///
///
/// <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><br> /// 生成HTML文件 <br> /// </summary>
/// 文章ID号
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><br> /// 设计器支持所需的方法 - 不要使用代码编辑器修改 <br> /// 此方法的内容。 <br> /// </summary>
private void InitializeComponent()
{
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
}
}
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