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Asp无组仵上传图片并生成缩略图

时间:2023-10-13    点击: 次    来源:网络    添加者:佚名 - 小 + 大

先创建一文件夹,并创建虚拟目录或站长点。

1.增加上传页xAdd.html

无组件上传

"POST"name="myform"action="xSave.asp"target="_self">

"PicPath"type="text"id="PicPath"readonly="true">

"sPicPath"type="hidden"id="sPicPath">

""id="objimg"style="display:none;"/>
2.上传页upload.htm

"Content-Type"content="text/html; charset=gb2312">

function check_file()

{

var strFileName=form.FileName.value;

if(strFileName=="")

{

alert("请选择要上传的文件");

returnfalse;

}

}

"0"topmargin="0">

"upfile.asp"method="post"name="form1"enctype="multipart/form-data">

"FileName"type="FILE"class="tx1"size="20"onChange="window.parent.document.getElementById('objimg').src=this.value;window.parent.document.getElementById('objimg').style.display='';">

"submit"name="Submit"value="上传">

3.上传保存代码页upfile.asp

Const MaxFileSize=300        '上传文件大小限制单位k

Const UpFileType="gif|jpg|bmp|png"'允许的上传文件类型

setfs=createobject("scripting.filesystemobject")

%>

"Content-Type"content="text/html; charset=gb2312">

call upload_0()  '使用化境无组件上传类

%>

sub upload_0()    '使用化境无组件上传类

setupload=newupload_file    '建立上传对象

foreach formNameinupload.file '列出所有上传了的文件

setfile=upload.file(formName)  '生成一个文件对象

iffile.filesize<100 then

msg="请先选择你要上传的文件!"

founderr=true

endif

iffile.filesize>(MaxFileSize*1024) then

msg="文件大小超过了限制,最大只能上传"& CStr(MaxFileSize) &"K的文件!"

founderr=true

endif

fileExt=lcase(file.FileExt)

Forumupload=split(UpFileType,"|")

fori=0 to ubound(Forumupload)

iffileEXT=trim(Forumupload(i)) then

EnableUpload=true

exitfor

endif

next

iffileEXT="asp"or fileEXT="asa"or fileEXT="aspx"then

EnableUpload=false

endif

ifEnableUpload=falsethen

msg="这种文件类型不允许上传!/n/n只允许上传这几种文件类型:"& UpFileType

response.write""

founderr=true

endif

strJS=""

response.write strJS

setfile=nothing

next

setupload=nothing

end sub

%>

4.upload.asp页

'----------------------------------------------------------------------

'转发时请保留此声明信息,这段声明不并会影响你的速度!

'*******************    无组件上传类   ********************************

'声明:此上传类是在化境编程界发布的无组件上传类的基础上修改的.

'在与化境编程界无组件上传类相比,速度快了将近50倍,当上传4M大小的文件时

'服务器只需要10秒就可以处理完,是目前最快的无组件上传程序,当前版本为0.96

'源代码公开,免费使用,对于商业用途,请与作者联系

'文件属性:例如上传文件为c:/myfile/doc.txt

'FileName    文件名       字符串"doc.txt"

'FileSize    文件大小     数值       1210

'FileType    文件类型     字符串"text/plain"

'FileExt     文件扩展名   字符串"txt"

'FilePath    文件原路径   字符串"c:/myfile"

'使用时注意事项:

'由于Scripting.Dictionary区分大小写,所以在网页及ASP页的项目名都要相同的大小

'写,如果人习惯用大写或小写,为了防止出错的话,可以把

'sFormName = Mid (sinfo,iFindStart,iFindEnd-iFindStart)

'改为

'(小写者)sFormName = LCase(Mid (sinfo,iFindStart,iFindEnd-iFindStart))

'(大写者)sFormName = UCase(Mid (sinfo,iFindStart,iFindEnd-iFindStart))

'**********************************************************************

'----------------------------------------------------------------------

dim oUpFileStream

Class upload_file

dim Form,File,Version

Private Sub Class_Initialize

'定义变量

dim RequestBinDate,sStart,bCrLf,sInfo,iInfoStart,iInfoEnd,tStream,iStart,oFileInfo

dim iFileSize,sFilePath,sFileType,sFormvalue,sFileName

dim iFindStart,iFindEnd

dim iFormStart,iFormEnd,sFormName

'代码开始

Version="无组件上传类 Version 0.96"

setForm = Server.CreateObject("Scripting.Dictionary")

setFile = Server.CreateObject("Scripting.Dictionary")

ifRequest.TotalBytes

settStream = Server.CreateObject("adodb.stream")

setoUpFileStream = Server.CreateObject("adodb.stream")

oUpFileStream.Type = 1

oUpFileStream.Mode = 3

oUpFileStream.Open

oUpFileStream.Write Request.BinaryRead(Request.TotalBytes)

oUpFileStream.Position=0

RequestBinDate = oUpFileStream.Read

iFormEnd = oUpFileStream.Size

bCrLf = chrB(13) & chrB(10)

'取得每个项目之间的分隔符

sStart = MidB(RequestBinDate,1, InStrB(1,RequestBinDate,bCrLf)-1)

iStart = LenB (sStart)

iFormStart = iStart+2

'分解项目

Do

iInfoEnd = InStrB(iFormStart,RequestBinDate,bCrLf & bCrLf)+3

tStream.Type = 1

tStream.Mode = 3

tStream.Open

oUpFileStream.Position = iFormStart

oUpFileStream.CopyTo tStream,iInfoEnd-iFormStart

tStream.Position = 0

tStream.Type = 2

tStream.Charset ="gb2312"

sInfo = tStream.ReadText

'取得表单项目名称

iFormStart = InStrB(iInfoEnd,RequestBinDate,sStart)-1

iFindStart = InStr(22,sInfo,"name=""",1)+6

iFindEnd = InStr(iFindStart,sInfo,"""",1)

sFormName = Mid (sinfo,iFindStart,iFindEnd-iFindStart)

'如果是文件

ifInStr (45,sInfo,"filename=""",1) > 0 then

setoFileInfo=newFileInfo

'取得文件属性

iFindStart = InStr(iFindEnd,sInfo,"filename=""",1)+10

iFindEnd = InStr(iFindStart,sInfo,"""",1)

sFileName = Mid (sinfo,iFindStart,iFindEnd-iFindStart)

oFileInfo.FileName = GetFileName(sFileName)

oFileInfo.FilePath = GetFilePath(sFileName)

oFileInfo.FileExt = GetFileExt(sFileName)

iFindStart = InStr(iFindEnd,sInfo,"Content-Type: ",1)+14

iFindEnd = InStr(iFindStart,sInfo,vbCr)

oFileInfo.FileType = Mid (sinfo,iFindStart,iFindEnd-iFindStart)

oFileInfo.FileStart = iInfoEnd

oFileInfo.FileSize = iFormStart -iInfoEnd -2

oFileInfo.FormName = sFormName

file.add sFormName,oFileInfo

else

'如果是表单项目

tStream.Close

tStream.Type = 1

tStream.Mode = 3

tStream.Open

oUpFileStream.Position = iInfoEnd

oUpFileStream.CopyTo tStream,iFormStart-iInfoEnd-2

tStream.Position = 0

tStream.Type = 2

tStream.Charset ="gb2312"

sFormvalue = tStream.ReadText

form.Add sFormName,sFormvalue

endif

tStream.Close

iFormStart = iFormStart+iStart+2

'如果到文件尾了就退出

loop until (iFormStart+2) = iFormEnd

RequestBinDate=""

settStream = nothing

End Sub

Private Sub Class_Terminate

'清除变量及对像

ifnot Request.TotalBytes<1 then

oUpFileStream.Close

setoUpFileStream =nothing

endif

Form.RemoveAll

File.RemoveAll

setForm=nothing

setFile=nothing

End Sub

'取得文件路径

Private function GetFilePath(FullPath)

If FullPath <>""Then

GetFilePath = left(FullPath,InStrRev(FullPath,"/"))

Else

GetFilePath =""

End If

End function

'取得文件名

Private function GetFileName(FullPath)

If FullPath <>""Then

GetFileName = mid(FullPath,InStrRev(FullPath,"/")+1)

Else

GetFileName =""

End If

End function

'取得扩展名

Private function GetFileExt(FullPath)

If FullPath <>""Then

GetFileExt = mid(FullPath,InStrRev(FullPath,".")+1)

Else

GetFileExt =""

End If

End function

End Class

'文件属性类

Class FileInfo

dim FormName,FileName,FilePath,FileSize,FileType,FileStart,FileExt

Private Sub Class_Initialize

FileName =""

FilePath =""

FileSize = 0

FileStart= 0

FormName =""

FileType =""

FileExt =""

End Sub

'保存文件方法

Public function SaveToFile(FullPath)

dim oFileStream,ErrorChar,i

SaveToFile=1

iftrim(fullpath)=""or right(fullpath,1)="/"then exit function

setoFileStream=CreateObject("Adodb.Stream")

oFileStream.Type=1

oFileStream.Mode=3

oFileStream.Open

oUpFileStream.position=FileStart

oUpFileStream.copyto oFileStream,FileSize

oFileStream.SaveToFile FullPath,2

oFileStream.Close

setoFileStream=nothing

SaveToFile=0

end function

End Class

%>

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