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

ASP
在ASP程序中实现数据库事务控制
怎样开始一个ASP网站的设计
ASP中使用ServerVariables集合详解
关于解决商务平台ASP程序的源代码泄漏设想与思考
ASP通用模板类
javascript利用xmlhttp获得服务器时钟的方法
asp+oracle分页程序类(XDOWNPAGE2.0)
ASP中实现小偷程序的原理和简单
asp中vbscript访问xml文件
ASP防SQL注入攻击程序
用ASP读INI配置文件的函数
asp实现关键词获取(各搜索引擎,gb2312及utf-8)
xmlhttp组件获取远程文件并筛选出目标数据
XMLHTTP Get HTML页面时的中文乱码之完全客户端Script解决方案
WEB打印设置解决方案一(通过修改注册表改变IE打印设置)
WEB打印设置解决方案二(利用ScriptX.cab控件改变IE打印设置)
WEB打印设置解决方案三(FileSystem组件实现WEB打印)
WEB打印设置解决方案四(在ASP中实现网络打印功能)
ASP实用技巧 强制刷新网页
Access通用-自动替换数据库中的字符串

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: 208 ::
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