论坛 Forum

看了“炫羽”朋友发的《增加附件上传功能》一文，确实是高手，特别是共享精神令人佩服！本着开源的思想，也把自己的一些不成熟的经验发布一下，供大家参考。

还是先上图片：

主文件两个UpLoadClass.asp和upload.asp

UpLoadClass.asp是风声的无组件上传类

upload.asp是文件上传文件

UpLoadClass.asp源代码：

<%
'----------------------------------------------------------
'************** 风声 ASP 无组件上传类 V2.11 *************
'作者：风声
'网站：http://www.fonshen.com
'邮件：webmaster@fonshen.com
'版权：版权全体,源代码公开,各种用途均可免费使用
'**********************************************************
'----------------------------------------------------------
Class UpLoadClass

Private m_TotalSize,m_MaxSize,m_FileType,m_SavePath,m_AutoSave,m_Error,m_Charset
Private m_dicForm,m_binForm,m_binItem,m_strDate,m_lngTime
Public FormItem,FileItem

Public Property Get Version
Version="Fonshen ASP UpLoadClass Version 2.11"
End Property

Public Property Get Error
Error=m_Error
End Property

Public Property Get Charset
Charset=m_Charset
End Property
Public Property Let Charset(strCharset)
m_Charset=strCharset
End Property

Public Property Get TotalSize
TotalSize=m_TotalSize
End Property
Public Property Let TotalSize(lngSize)
if isNumeric(lngSize) then m_TotalSize=Clng(lngSize)
End Property

Public Property Get MaxSize
MaxSize=m_MaxSize
End Property
Public Property Let MaxSize(lngSize)
if isNumeric(lngSize) then m_MaxSize=Clng(lngSize)
End Property

Public Property Get FileType
FileType=m_FileType
End Property
Public Property Let FileType(strType)
m_FileType=strType
End Property

Public Property Get SavePath
SavePath=m_SavePath
End Property
Public Property Let SavePath(strPath)
m_SavePath=Replace(strPath,chr(0),"")
End Property

Public Property Get AutoSave
AutoSave=m_AutoSave
End Property
Public Property Let AutoSave(byVal Flag)
select case Flag
case 0,1,2: m_AutoSave=Flag
end select
End Property

Private Sub Class_Initialize
m_Error = -1
m_Charset = "gb2312"
m_TotalSize= 0
m_MaxSize = 153600
m_FileType = "jpg/gif"
m_SavePath = ""
m_AutoSave = 0
Dim dtmNow : dtmNow = Date()
m_strDate = Year(dtmNow)&Right("0"&Month(dtmNow),2)&Right("0"&Day(dtmNow),2)
m_lngTime = Clng(Timer()*1000)
Set m_binForm = Server.CreateObject("ADODB.Stream")
Set m_binItem = Server.CreateObject("ADODB.Stream")
Set m_dicForm = Server.CreateObject("Scripting.Dictionary")
m_dicForm.CompareMode = 1
End Sub

Private Sub Class_Terminate
m_dicForm.RemoveAll
Set m_dicForm = nothing
Set m_binItem = nothing
m_binForm.Close()
Set m_binForm = nothing
End Sub

Public Function Open()
Open = 0
if m_Error=-1 then
m_Error=0
else
Exit Function
end if
Dim lngRequestSize : lngRequestSize=Request.TotalBytes
if m_TotalSize>0 and lngRequestSize>m_TotalSize then
m_Error=5
Exit Function
elseif lngRequestSize<1 then
m_Error=4
Exit Function
end if

Dim lngChunkByte : lngChunkByte = 102400
Dim lngReadSize : lngReadSize = 0
m_binForm.Type = 1
m_binForm.Open()
do
m_binForm.Write Request.BinaryRead(lngChunkByte)
lngReadSize=lngReadSize+lngChunkByte
if lngReadSize >= lngRequestSize then exit do
loop 
m_binForm.Position=0
Dim binRequestData : binRequestData=m_binForm.Read()

Dim bCrLf,strSeparator,intSeparator
bCrLf=ChrB(13)&ChrB(10)
intSeparator=InstrB(1,binRequestData,bCrLf)-1
strSeparator=LeftB(binRequestData,intSeparator)

Dim strItem,strInam,strFtyp,strPuri,strFnam,strFext,lngFsiz
Const strSplit="'"">"
Dim strFormItem,strFileItem,intTemp,strTemp
Dim p_start : p_start=intSeparator+2
Dim p_end
Do
p_end = InStrB(p_start,binRequestData,bCrLf&bCrLf)-1
m_binItem.Type=1
m_binItem.Open()
m_binForm.Position=p_start
m_binForm.CopyTo m_binItem,p_end-p_start
m_binItem.Position=0
m_binItem.Type=2
m_binItem.Charset=m_Charset
strItem = m_binItem.ReadText()
m_binItem.Close()
intTemp=Instr(39,strItem,"""")
strInam=Mid(strItem,39,intTemp-39)

p_start = p_end + 4
p_end = InStrB(p_start,binRequestData,strSeparator)-1
m_binItem.Type=1
m_binItem.Open()
m_binForm.Position=p_start
lngFsiz=p_end-p_start-2
m_binForm.CopyTo m_binItem,lngFsiz

if Instr(intTemp,strItem,"filename=""")<>0 then
if not m_dicForm.Exists(strInam&"_From") then
strFileItem=strFileItem&strSplit&strInam
if m_binItem.Size<>0 then
intTemp=intTemp+13
strFtyp=Mid(strItem,Instr(intTemp,strItem,"Content-Type: ")+14)
strPuri=Mid(strItem,intTemp,Instr(intTemp,strItem,"""")-intTemp)
intTemp=InstrRev(strPuri,"\")
strFnam=Mid(strPuri,intTemp+1)
m_dicForm.Add strInam&"_Type",strFtyp
m_dicForm.Add strInam&"_Name",strFnam
m_dicForm.Add strInam&"_Path",Left(strPuri,intTemp)
m_dicForm.Add strInam&"_Size",lngFsiz
if Instr(strFnam,".")<>0 then
strFext=Mid(strFnam,InstrRev(strFnam,".")+1)
else
strFext=""
end if

select case strFtyp
case "image/jpeg","image/pjpeg","image/jpg"
if Lcase(strFext)<>"jpg" then strFext="jpg"
m_binItem.Position=3
do while not m_binItem.EOS
do
intTemp = Ascb(m_binItem.Read(1))
loop while intTemp = 255 and not m_binItem.EOS
if intTemp < 192 or intTemp > 195 then
m_binItem.read(Bin2Val(m_binItem.Read(2))-2)
else
Exit do
end if
do
intTemp = Ascb(m_binItem.Read(1))
loop while intTemp < 255 and not m_binItem.EOS
loop
m_binItem.Read(3)
m_dicForm.Add strInam&"_Height",Bin2Val(m_binItem.Read(2))
m_dicForm.Add strInam&"_Width",Bin2Val(m_binItem.Read(2))
case "image/gif"
if Lcase(strFext)<>"gif" then strFext="gif"
m_binItem.Position=6
m_dicForm.Add strInam&"_Width",BinVal2(m_binItem.Read(2))
m_dicForm.Add strInam&"_Height",BinVal2(m_binItem.Read(2))
case "image/png"
if Lcase(strFext)<>"png" then strFext="png"
m_binItem.Position=18
m_dicForm.Add strInam&"_Width",Bin2Val(m_binItem.Read(2))
m_binItem.Read(2)
m_dicForm.Add strInam&"_Height",Bin2Val(m_binItem.Read(2))
case "image/bmp"
if Lcase(strFext)<>"bmp" then strFext="bmp"
m_binItem.Position=18
m_dicForm.Add strInam&"_Width",BinVal2(m_binItem.Read(4))
m_dicForm.Add strInam&"_Height",BinVal2(m_binItem.Read(4))
case "application/x-shockwave-flash"
if Lcase(strFext)<>"swf" then strFext="swf"
m_binItem.Position=0
if Ascb(m_binItem.Read(1))=70 then
m_binItem.Position=8
strTemp = Num2Str(Ascb(m_binItem.Read(1)), 2 ,8)
intTemp = Str2Num(Left(strTemp, 5), 2)
strTemp = Mid(strTemp, 6)
while (Len(strTemp) < intTemp * 4)
strTemp = strTemp & Num2Str(Ascb(m_binItem.Read(1)), 2 ,8)
wend
m_dicForm.Add strInam&"_Width", Int(Abs(Str2Num(Mid(strTemp, intTemp + 1, intTemp), 2) - Str2Num(Mid(strTemp, 1, intTemp), 2)) / 20)
m_dicForm.Add strInam&"_Height",Int(Abs(Str2Num(Mid(strTemp, 3 * intTemp + 1, intTemp), 2) - Str2Num(Mid(strTemp, 2 * intTemp + 1, intTemp), 2)) / 20)
end if
end select

m_dicForm.Add strInam&"_Ext",strFext
m_dicForm.Add strInam&"_From",p_start
if m_AutoSave<>2 then
intTemp=GetFerr(lngFsiz,strFext)
m_dicForm.Add strInam&"_Err",intTemp
if intTemp=0 then
if m_AutoSave=0 then
strFnam=GetTimeStr()
if strFext<>"" then strFnam=strFnam&"."&strFext
end if
m_binItem.SaveToFile Server.MapPath(m_SavePath&strFnam),2
m_dicForm.Add strInam,strFnam
end if
end if
else
m_dicForm.Add strInam&"_Err",-1
end if
end if
else
m_binItem.Position=0
m_binItem.Type=2
m_binItem.Charset=m_Charset
strTemp=m_binItem.ReadText
if m_dicForm.Exists(strInam) then
m_dicForm(strInam) = m_dicForm(strInam)&","&strTemp
else
strFormItem=strFormItem&strSplit&strInam
m_dicForm.Add strInam,strTemp
end if
end if

m_binItem.Close()
p_start = p_end+intSeparator+2
loop Until p_start+3>lngRequestSize
FormItem=Split(strFormItem,strSplit)
FileItem=Split(strFileItem,strSplit)

Open = lngRequestSize
End Function

Private Function GetTimeStr()
m_lngTime=m_lngTime+1
GetTimeStr=m_strDate&Right("00000000"&m_lngTime,8)
End Function

Private Function GetFerr(lngFsiz,strFext)
dim intFerr
intFerr=0
if lngFsiz>m_MaxSize and m_MaxSize>0 then
if m_Error=0 or m_Error=2 then m_Error=m_Error+1
intFerr=intFerr+1
end if
if Instr(1,LCase("/"&m_FileType&"/"),LCase("/"&strFext&"/"))=0 and m_FileType<>"" then
if m_Error<2 then m_Error=m_Error+2
intFerr=intFerr+2
end if
GetFerr=intFerr
End Function

Public Function Save(Item,strFnam)
Save=false
if m_dicForm.Exists(Item&"_From") then
dim intFerr,strFext
strFext=m_dicForm(Item&"_Ext")
intFerr=GetFerr(m_dicForm(Item&"_Size"),strFext)
if m_dicForm.Exists(Item&"_Err") then
if intFerr=0 then
m_dicForm(Item&"_Err")=0
end if
else
m_dicForm.Add Item&"_Err",intFerr
end if
if intFerr<>0 then Exit Function
if VarType(strFnam)=2 then
select case strFnam
case 0:strFnam=GetTimeStr()
if strFext<>"" then strFnam=strFnam&"."&strFext
case 1:strFnam=m_dicForm(Item&"_Name")
end select
end if
m_binItem.Type = 1
m_binItem.Open
m_binForm.Position = m_dicForm(Item&"_From")
m_binForm.CopyTo m_binItem,m_dicForm(Item&"_Size")
m_binItem.SaveToFile Server.MapPath(m_SavePath&strFnam),2
m_binItem.Close()
if m_dicForm.Exists(Item) then
m_dicForm(Item)=strFnam
else
m_dicForm.Add Item,strFnam
end if
Save=true
end if
End Function

Public Function GetData(Item)
GetData=""
if m_dicForm.Exists(Item&"_From") then
if GetFerr(m_dicForm(Item&"_Size"),m_dicForm(Item&"_Ext"))<>0 then Exit Function
m_binForm.Position = m_dicForm(Item&"_From")
GetData = m_binForm.Read(m_dicForm(Item&"_Size"))
end if
End Function

Public Function Form(Item)
if m_dicForm.Exists(Item) then
Form=m_dicForm(Item)
else
Form=""
end if
End Function

Private Function BinVal2(bin)
dim lngValue,i
lngValue=0
for i = lenb(bin) to 1 step -1
lngValue = lngValue *256 + Ascb(midb(bin,i,1))
next
BinVal2=lngValue
End Function

Private Function Bin2Val(bin)
dim lngValue,i
lngValue=0
for i = 1 to lenb(bin)
lngValue = lngValue *256 + Ascb(midb(bin,i,1))
next
Bin2Val=lngValue
End Function

Private Function Num2Str(num, base, lens)
Dim ret,i
ret = ""
while(num >= base)
i = num Mod base
ret = i & ret
num = (num - i) / base
wend
Num2Str = Right(String(lens, "0") & num & ret, lens)
End Function

Private Function Str2Num(str, base)
Dim ret, i
ret = 0 
for i = 1 to Len(str)
ret = ret * base + Cint(Mid(str, i, 1))
next
Str2Num = ret
End Function

End Class
%>

upload.asp源代码

<!--#include file="conn.asp"-->
<!--#include file="UpLoadClass.asp"-->
<%Server.ScriptTimeOut=5000%>
<%
'调用网页头部代码
'call header("上传文件")
%>
<body class="tdbg">
<%
'定义常量(此处变量也可以)
Const Upload_PicPath = "uploadfile/" '文件上传目录
Const Upload_FileExt = "txt/doc/xls/rar/zip/exe/wps/chm/hlp" '允许上传文件类型
Const Upload_PicFileSize = "200" '允许上传文件大小(单位：K)
Dim request2,ArticleFolder,UploadFolderPath

ArticleFolder=YCgetTime(Now,10) & "/" '设定当前年月目录
UploadFolderPath="../" & Upload_PicPath & ArticleFolder '设置文件存放的路径
Call FolderNameCheck(UploadFolderPath) '检查文件夹
'建立上传对象
Set request2=New UpLoadClass
'request2.Charset="gb2312" '设置字符集
request2.MaxSize=Upload_PicFileSize*1024 '设置上传文件的最大字节数
request2.FileType=Upload_FileExt '设置允许上传文件的类型
request2.SavePath=UploadFolderPath '设置文件存放的路径
request2.AutoSave=0 '设置文件保存方式
request2.Open()'打开对象

If request2.Error=0 Then
Response.Write "<script type=""text/javascript"">parent.insertHtml('content1', '<a href="&request2.SavePath & request2.Form("filename") &">"&request2.form("filename"&"_Name")&"</a>');</script>" & vbCrlf
Call Response.Write("<script>window.setTimeout(""location.href='Admin_Article_Upload.asp'"",0);</script>")
Else
Call Message(0,Err2Info(request2.Error),"?")
'Response.Write Err2Info(request2.Error)
End If

Set request2=Nothing

Sub FolderNameCheck(FolderNameNew)
'检查文件名是否含有特殊字符,如果含有则错误提示
Dim Letters,i,c,fso
Letters="+=:;,[]<>\|*?"
For i=1 To len(FolderNameNew)
c=mid(FolderNameNew,i,1)
If inStr(Letters,c)<>0 Then
Call Message(0,"上传失败，文件夹名称含有特殊字符","?")
End If
Next
'检查文件夹是否存在,如果不存在就创建文件夹
Set fso=Server.CreateObject("Scripting.FileSystemObject")
If fso.FolderExists(server.MapPath(FolderNameNew))=False Then
fso.CreateFolder(server.MapPath(FolderNameNew))
End If
Set fso=Nothing
End Sub
Function Err2Info(Error)
Select Case Error
Case -1:Err2Info = "文件上传失败，请选择文件。"
Case 0: Err2Info = "文件上传成功。"
Case 1: Err2Info = "文件上传失败，不能上传超过"&Upload_PicFileSize&"KB的文件。"
Case 2: Err2Info = "文件上传失败，只允许上传后缀名为"""&Replace(Upload_FileExt,"/",",")&"""的文件。"
Case 3: Err2Info = "文件上传失败，不能上传超过"&Upload_PicFileSize&"KB的文件,并且只允许上传后缀名为"""&Replace(Upload_FileExt,"/","，")&"""的文件。"
Case 4: Err2Info = "文件上传失败。" 
End Select
End Function
'============================================
'--格式化时间
'--tempTime　为所要格式化的时间
'--tempPar　取值为1、2、3、4、5、6、7、8,分别表示8种时间显示格式
'============================================
function YCgetTime(tempTime,tempPar)
if IsDate(tempTime) then
dim y : y = Year(tempTime)
dim m : m = Month(tempTime)
dim d : d = Day(tempTime)
dim h : h = Hour(tempTime)
dim n : n = Minute(tempTime)
dim s : s = Second(tempTime)
if m < 10 then m = "0"&m
if d < 10 then d = "0"&d
if h < 10 then h = "0"&h
if n < 10 then n = "0"&n
if s < 10 then s = "0"&s
dim newTime
select case tempPar
case 1 : newTime = y&"-"&m&"-"&d&" "&h&":"&n&":"&s
case 2 : newTime = y&"-"&m&"-"&d
case 3 : newTime = y&"年"&m&"月"&d&"日"&h&"时"&n&"分"&s&"秒"
case 4 : newTime = Right(y,2)&"年"&m&"月"&d&"日"
case 5 : newTime = y&"年"&m&"月"&d&"日"
case 6 : newTime = Right(y,2)&"-"&m&"-"&d
case 7 : newTime = m&"-"&d
case 8 : newTime = m&"月"&d&"日"
Case 9 : newtime = y&m&d&h&n&s
Case 10 : newtime = y&m
end select
YCgetTime = newTime
else
YCgetTime = tempTime
end if
end Function

'============================================
'操作成功输出
'============================================
Function Message(byval tempPar,byval tempMessage,byval tempUrl)
Call ConnEnd()
dim tempString : tempString = ""
select case tempPar
case 0:
tempString = "history.go(-1);"
case 1:
tempString = "window.location='"&tempUrl&"';"
case 2:
tempString = "window.parent.location='"&tempUrl&"';"
case 3:
tempString = ""
end select
if Right(tempMessage,2) = "\n" then tempMessage = Left(tempMessage,Len(tempMessage)-2)
Response.Write("<"&"script>alert('"&tempMessage&"');"&tempString&"<"&"/script>")
Response.End
End Function
%>

最后在添加文章的页面添加以下代码就可以了：

<tr>
<td>上传图片</td>
<td><iframe border="0" frameBorder="0" noResize scrolling="no" width="100%" src="Upload.asp" height="22" vspace="0" hspace="0" marginwidth="0" marginheight="0"></iframe></td>
</tr>

这些文件该放到哪里呢？