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.net 文件操作的一点记录

Posted on 2007-11-22 15:07  yuanws  阅读(490)  评论(0编辑  收藏  举报

1.
string cnnstring = System.Configuration.ConfigurationSettings.AppSettings["Oracle"].ToString();
      OracleConnection conn=new OracleConnection(cnnstring);
   OracleCommand cmd=new OracleCommand("select spxxid,spdt from jt_j_spxx where spdt is not null order by spxxid desc ",conn);
   //OracleCommand cmd=new OracleCommand("select spxxid,spdt from jt_j_spxx order by spxxid desc ",conn);
            //OracleCommand cmd=new OracleCommand("select spxxid,spdt from jt_j_spxx where spxxid='756336553'",conn);
   conn.Open();
   OracleDataReader myReader;
            myReader = cmd.ExecuteReader();
   while(myReader.Read())
   {
    
    fpath = Server.MapPath(Request.ApplicationPath)+"/image/"+myReader.GetString(0)+".jpg";
                 fs =new FileStream(fpath, FileMode.OpenOrCreate, FileAccess.Write);
                 bw = new BinaryWriter(fs);
    outbyte = (byte[])myReader[1];
    bw.Write(outbyte);
    bw.Flush();
     bw.Close();
                fs.Close();

   }
   myReader.Close();
            conn.Close();

2. 
  upfile(System.Configuration.ConfigurationSettings.AppSettings["ForumUrl"]+"/Movie/default.aspx","~/Movie/index.html");

public void upfile(string url,string mappath)
  {
   try
   {
    Uri UrlPage= new Uri(url);
    HttpWebRequest hwReq = (HttpWebRequest)WebRequest.Create(UrlPage);
    hwReq.Timeout = 50000 ;
    HttpWebResponse hwRes = (HttpWebResponse)hwReq.GetResponse();
    hwReq.Method = "Post";
    hwReq.KeepAlive = true;


    StreamWriter fs =new StreamWriter(Server.MapPath(mappath),false,System.Text.Encoding.UTF8);
    StreamReader  fs2=new StreamReader(hwRes.GetResponseStream(),System.Text.Encoding.UTF8);
    string nextline;
    while((nextline=fs2.ReadLine())!=null)
    {
     fs.WriteLine(nextline);
    }
    fs.Close();
    fs2.Close();
    Response.Write("<script>alert('生成成功');</script>");
   }
   catch
   {
    Response.Write("<script>alert('生成超时,请重新生成');</script>");
   }
    
  }
3.

if(File.Exists(Server.MapPath("../zthtml/temp/"+str))==false)
    {
     Response.Write("<script>alert('没有找到模板,请确定模板的名字正确!');</script>");
    }
    else
    {
     StreamReader objReader = new StreamReader(Server.MapPath("~/zthtml/temp/"+str),System.Text.Encoding.GetEncoding("gb2312"));
           

     string sLine="";
     sLine=objReader.ReadToEnd();
     objReader.Close();


}StreamWriter sw=new StreamWriter(Server.MapPath("~/zthtml/"+str.Substring(0,str.IndexOf(".",1))+".shtml"),false,System.Text.Encoding.GetEncoding("gb2312"),sLine.Length);
    
     sw.Write(sLine);