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¸üÐÂʱ¼ä£º2010-11-14
¡¡¡¡ÍøÉÏÓв»ÉÙÉú³ÉËõÂÔͼµÄASP×é¼þ¡£ÈôÄãµÄÐéÄâ¿Õ¼ä²»Ö§³Ö×¢²áÐÂ×é¼þ£¬ÄÇÄã¿ÉÄܾͻá¸Ð¾õ×Ô¼ºµÄÍøÕ¾Ê§É«²»ÉÙ¡£³É¶¼´´Ð»¥ÁªÍøÕ¾½¨ÉèС±à²»²Å£¬½áºÏÍøÉÏ×ÊԴдÁ˸öÎÞ×é¼þÉú³ÉËõÂÔͼ³ÌÐò£¬½ö¹©´ó¼Ò²Î¿¼¡£
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¡¡¡¡<img src="pic.gif" border="0" width="300" height="260">
¡¡¡¡srcÊÇͼƬ·¾¶£¬border¿ØÖÆÍ¼Æ¬±ßÔµ¿í¶È£¬widthÊÇͼƬµÄ³¤¶È£¬heightÊÇͼƬµÄ¸ß¶È¡£ËõÂÔͼµÄÉú³ÉÆäʵ¾ÍÊÇÔÚÔʼ³ß´çÉÏËõ·Å¡£µ«Ò»°ãΪÁ˾¡Á¿ÉÙÊ§Õæ£¬ÎÒÃǶ¼»á°´±ÈÀýËõ·Å¡£ÓÚÊÇ£¬»ñȡͼƬµÄ³¤¿í³ß´çÒ²¾Í³ÉÁËÉú³ÉËõÂÔͼµÄÖØµã¡£
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1.ÎÞ×é¼þ»ñȡͼƬ´óС
¡¡¡¡ÒÔǰ¸ÕѧASP²»¾Ãʱ¿´µ½¹ýһƪÀûÓÃASCIIÂëʵÏÖÎÞ×é¼þ»ñȡͼƬ³ß´çµÄÎÄÕ¡£ºóÀ´ÊÔÁËÊÔ£¬·¢ÏÖÔÚ»ñÈ¡jpgÀàͼƬ³ß´çʱ×ÜÊDz»ÄÜÕýÈ·ÏÔʾ£¬ÔÚÍøÉϲéÁ˲飬¾ÓÈ»Óв»ÉÙÍøÕ¾×ªÔØÕâ¸ö³ÌÐò£¬µ«Ã»ÓÐÒ»¼ÒÖ¸³ö´Ë³ÌÐòµÄȱÏÝ£¬Ò²¾Í¸ü̸²»ÉϽâ¾öȱÏݵİ취ÁË¡£ºóÀ´ÓÖgoogleÁËһϣ¬ÖÕÓÚÕÒµ½ÁËһƪ½éÉÜÀûÓÃADODB.stream»ñȡͼƬ³ß´çµÄÎÄÕ£¬°´Æä½éÉܵķ½·¨£¬ÐÞ¸ÄÀïÃæµÄ´úÂëÊÔÁËÊÔ£¬Ð§¹ûÕæµÄ»¹²»´í£¬ÏÖÔÚ½«ÆäÄóöÀ´Óë´ó¼Ò·ÖÏí£º
¡¡¡¡ÀûÓÃADODB.stream»ñȡͼƬ³ß´çµÄͨÓÃÀà
<%
'//////////// GPS£ºGet Picture Size //////////////
'//////////////ÀûÓÃADODB.stream»ñȡͼƬ³ß´ç//////////////
'/////////Cited By xwcx 2005Äê8ÔÂ11ÈÕ//////////
Class GPS
Dim aso
Private Sub Class_Initialize
Set aso=CreateObject("Adodb.Stream")
aso.Mode=3
aso.Type=1
aso.Open
End Sub
Private Sub Class_Terminate
set aso=nothing
End Sub
Private Function Bin2Str(Bin)
Dim I, Str
For I=1 to LenB(Bin)
clow=MidB(Bin,I,1)
if AscB(clow)<128 then
Str = Str & Chr(ASCB(clow))
Else
I=I+1
if I <= LenB(Bin) then Str = Str & Chr(ASCW(MidB(Bin,I,1)&clow))
end If
Next
Bin2Str = Str
End Function
Private Function Num2Str(num,base,lens)
'GPS (2005-8-11)
dim ret
ret = ""
while(num>=base)
ret = (num mod base) & ret
num = (num - num mod base)/base
wend
Num2Str = right(string(lens,"0") & num & ret,lens)
End Function
Private Function Str2Num(str,base)
'GPS (2005-8-11)
dim ret
ret = 0
for i=1 to len(str)
ret = ret *base + cint(mid(str,i,1))
next
Str2Num=ret
End Function
Private Function BinVal(bin)
'GPS (2002-8-11)
dim ret
ret = 0
for i = lenb(bin) to 1 step -1
ret = ret *256 + ascb(midb(bin,i,1))
next
BinVal=ret
End Function
Private Function BinVal2(bin)
'GPS (2002-8-11)
dim ret
ret = 0
for i = 1 to lenb(bin)
ret = ret *256 + ascb(midb(bin,i,1))
next
BinVal2=ret
End Function
'///ÒÔÏÂÊǵ÷ÓôúÂë///
Function getImageSize(filespec)
'GPS (2002-8-11)
dim ret(3)
aso.LoadFromFile(filespec)
bFlag=aso.read(3)
select case hex(binVal(bFlag))
case "4E5089":
aso.read(15)
ret(0)="PNG"
ret(1)=BinVal2(aso.read(2))
aso.read(2)
ret(2)=BinVal2(aso.read(2))
case "464947":
aso.read(3)
ret(0)="GIF"
ret(1)=BinVal(aso.read(2))
ret(2)=BinVal(aso.read(2))
case "535746":
aso.read(5)
binData=aso.Read(1)
sConv=Num2Str(ascb(binData),2 ,8)
nBits=Str2Num(left(sConv,5),2)
sConv=mid(sConv,6)
while(len(sConv)<nBits*4)
binData=aso.Read(1)
sConv=sConv&Num2Str(ascb(binData),2 ,8)
wend
ret(0)="SWF"
ret(1)=int(abs(Str2Num(mid(sConv,1*nBits+1,nBits),2)-Str2Num(mid(sConv,0*nBits+1,nBits),2))/20)
ret(2)=int(abs(Str2Num(mid(sConv,3*nBits+1,nBits),2)-Str2Num(mid(sConv,2*nBits+1,nBits),2))/20)
case "FFD8FF":
do
do: p1=binVal(aso.Read(1)): loop while p1=255 and not aso.EOS
if p1>191 and p1<196 then exit do else aso.read(binval2(aso.Read(2))-2)
do:p1=binVal(aso.Read(1)):loop while p1<255 and not aso.EOS
loop while true
aso.Read(3)
ret(0)="JPG"
ret(2)=binval2(aso.Read(2))
ret(1)=binval2(aso.Read(2))
case else:
if left(Bin2Str(bFlag),2)="BM" then
aso.Read(15)
ret(0)="BMP"
ret(1)=binval(aso.Read(4))
ret(2)=binval(aso.Read(4))
else
ret(0)=""
end if
end select
ret(3)="width=""" & ret(1) &""" height="""
& ret(2) &""""
getimagesize=ret
End Function
End Class
%>
¡¡¡¡½«ÒÔÉÏ´úÂë¸´ÖÆÉú³ÉGPS.aspÎļþ£¬ÕâÑùÎÞ×é¼þ»ñȡͼƬ³ß´çµÄͨÓÃÀà¾ÍOKÁË¡£
2.»ñȡͼƬ·¾¶
¡¡¡¡ÓÉÓÚ²»Ö»Ò»ÕÅͼƬ£¬ÒÔ¼°Í¼Æ¬Ðè·ÖÀà´æ·Å£¬ÎÒÃÇÔÚÊý¾Ý¿âÖÐÉè¼ÆÁËÒ»¸ö´æ·ÅͼƬÏà¶Ô·¾¶µÄ×Ö¶ÎImgURL¡£ÎÒÃǰÑÉÏ´«µÄͼƬ¶¼·ÅÔÚÒ»¸öÃûΪimagesµÄÎļþ¼ÐÖУ¨ÖÁÓÚÈçºÎÎÞ×é¼þÉÏ´«Í¼Æ¬Ð¡±à¾Í²»ÔÚ¶à˵ÁË£©¡£ÏÖÔÚÎÒÃÇÏÈÉè¼ÆÒ»¸öShowImg.aspÒ³ÃæÓÃÀ´ÏÔʾËõÂÔͼ¼°Ïà¹ØÐÅÏ¢¡£¾ßÌåÉè¼ÆÈçÏ£º
ͼƬ£º
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ͼƬ³ß´ç£º
ͼƬ´óС£º
µã»÷´ÎÊý£º
ÏÂÃæ£¬ÎÒÃÇ»ñȡͼƬµÄ¾ø¶Ô·¾¶¡£´úÂëÈçÏ£º
<%
'/////»ñÈ¡ShowImg.aspµÄ¾ø¶Ô·¾¶/////
Dim curFile
curFile=Server.mappath(Request.servervariables("PATH_INFO"))
Dim curfilename,filename
'/////ͼƬÏà¶Ô·¾¶£¨´æÓÚÊý¾Ý¿âÖУ©
cufilename=rs("ImgURL")
'/////ÒòΪShowImg.aspÓëimagesÔÚͬһĿ¼£¬ËùÒÔÎÒÃÇÓÃinstrrev»ñÈ¡imagesµÄ·¾¶/////
filename=left(curFile,instrrev(curFile,"""))&cufilename
'/////½¨Á¢GPSÀàʵÌå/////
Dim GetPicSize
Set GetPicSize=new GPS
Set fs=Server.CreateObject("Scripting.FileSystemObject")
'/////»ñȡͼƬÀàÐÍ/////
Dim PicSuffixName
PicSuffixName=fs.GetExtensionName(filename)
Dim PD '//Picture Dimension
Dim PWidth,PHeight
Select Case PicSuffixName
Case "gif","bmp","jpg","png":
'/////µ÷ÓÃGPSͨÓÃÀàÖеÄGetImageSizeº¯Êý»ñȡͼƬ³ß´ç/////
PD=GetPicSize.GetImageSize(filename)
PWidth=PD(1) '//»ñȡͼƬ¿í¶È
PHeight=PD(2) '//»ñȡͼƬ¸ß¶È
Case "swf"
PD=GetPicSize.GetImageSize(filename)
PWidth=PD(1) '//»ñÈ¡Flash¿í¶È
PHeight=PD(2) '//»ñÈ¡Flash¸ß¶È
Case Else
End Select
Set fs=Nothing
Set GetPicSize=Nothing
%>
¡¡¡¡½«ÉÏÃæµÄ´úÂë¸´ÖÆµ½<body>µÄÉÏÃæ¾ÍOKÁË£¡
¡¡¡¡µ±È»£¬ÓÐÈË»á˵£¬»ñȡ·¾¶²»Ò»¶¨ÒªÓÃPATH_INFO£¬Ö±½ÓÓÃserver.mappath()²»¾Í¿ÉÒÔÁËÂºÇºÇ£¬Âܲ·Çà²Ë¸÷ÓÐËù°®£¬Ö÷ÒªÊÇÎÒÓÃPATH_INFO¿ÉÒÔʵÏÖFSOµÄһЩ¹¦ÄܶøÓÃserver.mappath()ûÓи㶨£¬ËùÒÔһֱʹÓÃÕâ¸ö¡£
3.¶¨ÒåËõÂÔͼ³ß´ç
¡¡¡¡Õⲿ·Ö´úÂë¾ÍÊÇÈÊÕß¼ûÈÊ£¬ÖÇÕß¼ûÖÇÁË¡£Ê×ÏÈ£¬ÎÒÃÇÐèÒª¹æ¶¨ËõÂÔͼÏÔʾ³ß´ç·¶Î§£¬Æ©È磺300X260£¬´úÂë¿ÉÒÔÕâÑùд£º
<%
Dim PXWidth,PXHeight
Dim Pp '//Proportion
If PWidth=0 Or PWidth="" Then
PXWidth=0
PXHeight=0
Else
Pp=FormatNumber(PWidth/PHeight,2) '//³¤¿í±È
End If
If PWidth>=PHeight Then
If PWidth>=300 Then
PXWidth=300
PXHeight=FormatNumber(300/Pp,0)
Else
PXWidth=PWidth
PXHeight=PHeight
End If
Else
If PHeight>=260 Then
PXHeight=260
PXWidth=FormatNumber(260*Pp,0)
Else
PXWidth=PWidth
PXHeight=PHeight
End If
End If
%>
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