利用ASPUPLOAD，ASPJPEG实现图片上传自动生成缩略图
编程学习 2021-07-05 10:58www.dzhlxh.cn编程入门
今天在站长站看到一网友写的相册程序，功能挺简单的，看到他用了ASPJPEG生成缩略图，不由想起再用上ASPUPLOAD上传，于是花了一个小时时间完善了他的代码。
以下代码均加有简单的注释，如果你看不懂，请先看ASPJPEG以及ASPUPLOAD的说明文档（E文，希望有心理准备），看不懂的可以问我。
以下是代码：
代码如下:
<%
if session("admin")<>"on" then
Response.Redirect"login.asp"
end if
%>
<!--#include file="config.asp" -->
<!--#include file="mdb/conn.asp" -->
<%
Set Upload = Server.CreateObject("Persits.Upload")
FilePath=Server.MapPath(".")
Count = Upload.Save(FilePath&BigPhotoPath) '传大图
SmallFilePath=FilePath & SmallPhotoPath
For Each File in Upload.Files
Set Jpeg = Server.CreateObject("Persits.Jpeg")
Jpeg.Open (File.Path)
BigFP=BigPhotoPath&(File.FileName) '大图相对路径
SFP=SmallPhotoPath&"S_"&(File.FileName)'小图相对路径
FileSize=File.Size'备写入数据库
'开始判断哪边为长边，以长边进行缩放,并生成小图
imgWidth=Jpeg.OriginalWidth
imgHeight=Jpeg.OriginalHeight
if imgWidth>=imgHeight and imgWidth>120 then
Jpeg.Width=150
Jpeg.Height=Jpeg.OriginalHeight/(Jpeg.OriginalWidth/150)
end if
if imgHeight>imgWidth and imgHeight>113 then
Jpeg.Height=113
Jpeg.Width=Jpeg.OriginalWidth/(Jpeg.OriginalHeight/113)
end if
Jpeg.Sharpen 1, 130
Jpeg.Save (SmallFilePath&"S_"&File.FileName)
'给大图加上水印(仅对大图加水印)
Jpeg.Open Server.MapPath(""&BigFP&"")
Jpeg.Canvas.Font.Color = &HFF0000
Jpeg.Canvas.Font.Family = "Courier New"
Jpeg.Canvas.Pen.Color = &H000000
Jpeg.Canvas.Pen.Width = 2
Jpeg.Canvas.Brush.Solid = False
Jpeg.Canvas.Font.BkMode = "Opaque" '处理平滑
Jpeg.Canvas.PrintText 10, 10, "www.LuanLuan.cn"
'Jpeg.Canvas.DrawBar 1, 1, 100, 100
Jpeg.Save Server.MapPath(BigFP)
Next
strSQL= "insert into desktop ([name],typeid,zhuanti,jj,[time],imgh,imgw,filesize,url,surl) values ('"&Upload.Form("name")&"','"&Upload.Form("typeid")&"','"&Upload.Form("zhuanti")&"','"&Upload.Form("photointro")&"','"&Now()&"','"&imgheight&"','"&imgwidth&"','"&FileSize &"','"&BigFP&"','"&SFP&"')"
conn.execute strSQL
set upload=nothing '删除对象
typeid=Request.QueryString("typeid")
response.write "<SCRIPT language=JavaScript>alert('文件上传成功,返回！');"
response.write "this.location.href='addfile.asp?typeid="&typeid&"';</SCRIPT>"
function HTMLEncode2(fString)
fString = Replace(fString, CHR(13), "")
fString = Replace(fString, CHR(10) & CHR(10), "</P><P>")
fString = Replace(fString, CHR(10), "<BR>")
HTMLEncode2 = fString
end function
%>