当前位置: 首页 > 图文教程 > 网络编程 > ASP > 如何用SAFileUp上传文件?

ASP
ASP漏洞及安全建议(3)
ASP漏洞及安全建议(4)
实现聊天室的悄悄话功能(上)
实现聊天室的悄悄话功能(中)
用ASP实现悄悄话的功能
《 优化你的ASP程序 》
让ASP应用系统成为跨平台的应用系统
让ASP应用系统成为跨平台的应用系统(2)
使用ASP加密算法加密你的数据(一)
使用ASP加密算法加密你的数据(二)
用ASP制作个性化的调查板
asp+语法介绍(二)---书写我们的第一个asp+ 文件
asp+语法介绍(一)
asp+语法介绍(三)----asp+的服务器端编程初步
asp+语法介绍(四)----asp+的服务器端编程进介
asp+语法介绍(五)----asp+的服务器端编程控件篇
sp+语法介绍(六)----数据库篇
用ASP和VBScript上载文件(一)
用ASP和VBScript上载文件(二)
解析正则表达式(原创)

ASP 中的 如何用SAFileUp上传文件?


出处:互联网   整理: 软晨网(RuanChen.com)   发布: 2009-11-03   浏览: 112 ::
收藏到网摘: n/a

  How Do I Upload Files to the database with SAFileUp?  
Don't do it! Use SAFileUp to upload the files to the server but do not store the image in the database. Instead store the path to the file. Better yet if the images will sit in the same folder just store the actual file name. Uploading the entire image to the database wastes too many resources. You need to upload the image in binary format which is slow. You also waste all that extra database space to store the image. Then you lose speed retrieving it.

These are the requirements for uploading files with SAFileup.
1] You need SAFileUp installed on the server. 2] You need Read, Write, and Change permissions on the directory you are going to save the pictures to. In my example I named the folder "Mypictures". Contact your ISP to set this up for you.
This is the web form - upload.asp. Notice the multipart/form-data. We are not just uploading text here. We are pulling files from the hard drive. Special rules and instructions apply. INPUT TYPE="file" gives us the browser button on the screen which lets us access the hard drive.
<TABLE><TR>
<TD valign='top'>
Category
</TD>
<TD>
<form enctype="multipart/form-data" method="post"  action="upload2.asp">
<INPUT TYPE="text"  NAME="categoryname">
</TD>
</TR>
<TR><TD align="right">
Alternate Text for banner:</TD>
<TD><INPUT TYPE="text"  NAME="alt">
</TD></TR>
<TR><TD align="right">
URL:  http:// </TD><TD><INPUT TYPE="text"  NAME="url">
</TD></TR>
<TR><TD align="right">
Get Add:</TD><TD><input type="file" name="f1"><br>
</TD></TR></TABLE>      
<BR><BR>
      <input type="submit"  NAME="submit"  value="submit">
</form>




The FORM Processing script - upload2.asp. Notice the upl.form("FORM_NAME"). you cannot use request.form to
retrieve form data when uploading files. You must reference the form elements with the File Upload object.
In this example it is "upl". <%
'You must have SAFileUp installed on the server
      Set upl = Server.CreateObject("SoftArtisans.FileUp")

      categoryname = trim(replace(upl.form("categoryname"),"'",""))
      alt = trim(replace(upl.form("alt"),"'",""))
      url = trim(replace(upl.form("url"),"'",""))

if categoryname = "" then
      response.write "You Must Enter a category name"
      response.end
End IF

NewFileName = Mid(upl.UserFilename, InstrRev(upl.UserFilename, "\") + 1)

'Rename file if file name already exists
      upl.CreateNewFile = true

'Do not overwrite existing files
'The folder the pictures will be saved in need Read, Write
'and Change permissions.  In this example it is "MyPictures"
      upl.SaveAs "D:\MyWebs\MyPictures\" & NewFileName

'Make sure we have the http:// extension
'remove it if it was already entered then re-add it
      path = NewFileName
      url = replace(url,"http://","")
      url = CStr("http://&quo