文件上传以及读取_louisupload(-优快云博客

本文链接：https://blog.youkuaiyun.com/louisp/article/details/550067

该博客主要展示了Access数据库上传功能的代码实现。定义了相关字符串变量，在upload方法中获取上传文件的文件名与路径，生成随机文件名并处理存储路径。在Button1_Click方法中调用upload方法，尝试保存文件，若成功则提示上传成功，若失败则捕获异常并提示保存失败。

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protected static string access,accessName,accessory;

private void upload()
  {
   //上传Access数据库的文件名与路径
   string acc="";
   acc=this.UP_FILE.PostedFile.FileName;//文件及路径名
      Response.Write (acc.ToString ());
   //   Response.End ();


   if(acc.Trim().Length>0)
   {
    int StrLength=acc.LastIndexOf("//");
    int GetLength=acc.Length;

    //获得文件名,生成随机文件名
    DateTime now = DateTime.Now;
    string strTime="newAccess"+now.DayOfYear.ToString()+now.DayOfWeek.ToString()+now.Hour.ToString()+now.Minute.ToString()+now.Second.ToString();
    accessName=acc.Substring((StrLength+1),GetLength-StrLength-1);
    accessory=strTime+accessName;

    string MailFile=Server.MapPath("//xml//Temp//");
    if(!System.IO.Directory.Exists(MailFile))
    {
     System.IO.Directory.CreateDirectory(MailFile);
    }
    access=MailFile+accessory;

   }

  }

private void Button1_Click(object sender, System.EventArgs e)
{

   upload();

   try
   {
    this.UP_FILE.PostedFile.SaveAs(access);

    Response.Write("<script language='javascript'>");
    Response.Write("alert('Access数据库"+accessName+"上传成功！')");
    Response.Write("</script>");
    //this.btnLL .Enabled =true;


   }
   catch (Exception ee)
   {
    Response.Write("<script language='javascript'>");
    Response.Write("alert('保存"+accessName+"文件失败！("+ee.ToString()+")')");
    Response.Write("</script>");
    //TextBox1.Text=ee.ToString();

}

//   StreamReader fileStream = new StreamReader(access,Encoding.Default);//文件的读取
//   TextBox1.Text = fileStream.ReadToEnd();
//   fileStream.Close();

}