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六大对象介绍
使用Filter实现信息的二次检索
让弹出窗口变得“听话”一些
在ASP中利用“正则表达式” 对象实现UBB风格的论坛
“Web 匿名用户”帐户密码的位置
对一些编程初学者的良言警句
ASP编程中15个非常有用的例子
精彩:ASP遗留的二十大积习
关于Asp代码与页面的分离
教大家如何利用ASP打造网站论坛DIY(1)
教大家如何利用ASP打造网站论坛DIY(2)
网站安全:防范ASP木马的十大基本原则
用ASP设计一个留言薄
趣味访客计数器设计两则
我的ASP之旅—二级联动菜单制作
ASP编程--新手上路篇:ASP技术简介
用ASP实现网上考试系统
请注意!常见的ASP脚本攻击及防范技巧
ASP开发的WAP格式简易邮件系统实例
asp基础教程:网页间数据传递方法小结

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: 167 ::
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