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【www.gdgbn.com--组件控件开发】
<%
if request.querystring("act")="upload" then
dim upload,path,tempcls,fname
"===============================================================================
set upload=new anupload "创建类实例
upload.singlesize=1024*1024*1024 "设置单个文件最大上传限制,按字节计；默认为不限制
upload.maxsize=1024*1024*1024 "设置最大上传限制,按字节计；默认为不限制
upload.exe="jpg|jpeg|gif|png|zip|rar|7z|pdf|doc" "设置合法扩展名,以|分割,忽略大小写
upload.charset="gb2312" "设置文本编码，默认为gb2312
upload.openprocesser=false "禁止进度条功能，如果启用，需配合客户端程序
upload.getdata() "获取并保存数据,必须调用本方法
"===============================================================================
if upload.errorid>0 then "判断错误号,如果myupload.err<=0表示正常
response.write upload.description "如果出现错误,获取错误描述
else
if upload.files(-1).count>0 then "这里判断你是否选择了文件
path=server.mappath("../uploadfile") "文件保存路径(这里是files文件夹)
"保存文件(以新文件名保存)
set tempcls=upload.files("file1")
tempcls.savetofile path,0
fname=tempcls.filename
set tempcls=nothing
else
response.write "您没有上传任何文件！"
end if
end if
set upload=nothing "销毁类实例
%>
<script type ="text/网页特效">
window.parent.document.pcfinal.pf_uploadfile.value="uploadfile/<%=fname%>";
</script>
<%
else
%>
<%
end if
%>
把下面代码保存成 pf_upload_class.asp
<%
class anupload
private form, fils
private vcharset, vmaxsize, vsinglesize, verr, vversion, vtotalsize, vexe, pid, vop, verrexe, vboundary, vlosttime, vmode, vfilecount
"==============================
"设置和读取属性开始
"==============================
public property let mode(byval value)
vmode = value
end property
public property let maxsize(byval value)
vmaxsize = value
end property
public property let singlesize(byval value)
vsinglesize = value
end property
public property let exe(byval value)
vexe = lcase(value)
end property
public property let charset(byval value)
vcharset = value
end property
public property get errorid()
errorid = verr
end property
public property get filecount()
filecount = fils.count
end property
public property get description()
description = geterr(verr)
end property
public property get version()
version = vversion
end property
public property get totalsize()
totalsize = vtotalsize
end property
public property get processid()
processid = pid
end property
public property let openprocesser(byval value)
vop = value
end property
public property get losttime()
losttime = vlosttime
end property
"==============================
"设置和读取属性结束，初始化类
"==============================
private sub class_initialize()
set form = server.createobject("scripting.dictionary")
set fils = server.createobject("scripting.dictionary")
vversion = "艾恩asp无组件上传类优化版(v9.11.1)"
vmaxsize = -1
vsinglesize = -1
verr = -1
vexe = ""
vtotalsize = 0
vcharset = "gb2312"
vop = false
pid = "anupload"
setapp "", 0, 0, ""
vmode = 0
end sub
private sub class_terminate()
dim f
form.removeall()
for each f in fils
fils(f).value = empty
set fils(f) = nothing
next
fils.removeall()
set form = nothing
set fils = nothing
end sub
"==============================
"函数名:getdata
"作用:处理客户端提交来的所有数据
"==============================
public sub getdata()
dim time1
time1 = timer()
if vop then pid = request.querystring("processid")
dim value, str, bcrlf, fpos, ssplit, slen, istart, ef
dim totalbytes, tempdata, bytesread, chunkreadsize, partsize, datapart, formend, formhead, startpos, endpos, formname, filename, fileexe, valueend, newname, localname, type_1, contenttype
totalbytes = request.totalbytes
ef = false
if checkentrytype = false then
ef = true
verr = 2
end if
"下面3句注释掉了，因为在iis5.0中，如果上传大小大于限制大小的文件，会出错，一直没找到解决方法。如果是在iis5以上的版本使用，可以取消下面3句的注释
"if not ef then
"if vmaxsize > 0 and totalbytes > vmaxsize then ef = true : verr = 1
"end if
if ef then exit sub
if vmode = 0 then
vtotalsize = 0
dim streamt
set streamt = server.createobject("adodb.stream")
streamt.type = 1
streamt.mode = 3
streamt.open
bytesread = 0
chunkreadsize = 1024 * 16
do while bytesread < totalbytes
partsize = chunkreadsize
if partsize + bytesread > totalbytes then partsize = totalbytes - bytesread
datapart = request.binaryread(partsize)
streamt.write datapart
bytesread = bytesread + partsize
setapp "uploading", totalbytes, bytesread, ""
loop
setapp "uploaded", totalbytes, bytesread, ""
streamt.position = 0
tempdata = streamt.read
streamt.close()
set streamt = nothing
else
tempdata = request.binaryread(totalbytes)
end if
bcrlf = chrb(13) & chrb(10)
fpos = instrb(1, tempdata, bcrlf)
ssplit = midb(tempdata, 1, fpos - 1)
slen = lenb(ssplit)
istart = slen + 2
do while lenb(tempdata) > 2 + slen
formend = instrb(istart, tempdata, bcrlf & bcrlf)
formhead = midb(tempdata, istart, formend - istart)
str = bytes2str(formhead)
startpos = instr(str, "name=""") + 6
endpos = instr(startpos, str, """")
formname = lcase(mid(str, startpos, endpos - startpos))
valueend = instrb(formend + 3, tempdata, ssplit)
if instr(str, "filename=""") > 0 then
startpos = instr(str, "filename=""") + 10
endpos = instr(startpos, str, """")
type_1 = instr(endpos, lcase(str), "content-type")
contenttype = trim(mid(str, type_1 + 13))
filename = mid(str, startpos, endpos - startpos)
if trim(filename) <> "" then
localname = filename
filename = replace(filename, "/", "")
filename = mid(filename, instrrev(filename, "") + 1)
if instr(filename, ".")>0 then
fileexe = split(filename, ".")(ubound(split(filename, ".")))
else
fileexe = ""
end if
if vexe <> "" then "判断扩展名
if checkexe(fileexe) = true then
verr = 3
verrexe = fileexe
tempdata = empty
exit sub
end if
end if
newname = getname()
newname = newname & "." & fileexe
vtotalsize = vtotalsize + valueend - formend - 6
if vsinglesize > 0 and (valueend - formend - 6) > vsinglesize then "判断上传单个文件大小
verr = 5
tempdata = empty
exit sub
end if
if vmaxsize > 0 and vtotalsize > vmaxsize then "判断上传数据总大小
verr = 1
tempdata = empty
exit sub
end if
if fils.exists(formname) then
verr = 4
tempdata = empty
exit sub
else
dim filecls
set filecls = getnewfileobj()
filecls.contenttype = contenttype
filecls.size = (valueend - formend - 5)
filecls.formname = formname
filecls.newname = newname
filecls.filename = filename
filecls.localname = filename
filecls.extend = split(newname, ".")(ubound(split(newname, ".")))
filecls.value = midb(tempdata, formend + 4, valueend - formend - 5)
fils.add formname, filecls
set filecls = nothing
end if
end if
else
value = midb(tempdata, formend + 4, valueend - formend - 6)
if form.exists(formname) then
form(formname) = form(formname) & "," & bytes2str(value)
else
form.add formname, bytes2str(value)
end if
end if
istart = 2 + slen
tempdata = midb(tempdata, valueend + 2)
loop
verr = 0
tempdata = empty
vlosttime = formatnumber((timer - time1) * 1000, 2)
end sub
public sub setapp(stp, total, current, desc)
application.lock()
application(pid) = "{id:""" & pid & """,step:""" & stp & """,total:" & total & ",now:" & current & ",description:""" & desc & """,dt:""" & now() & """}"
application.unlock()
end sub
"==============================
"判断扩展名
"==============================
private function checkexe(byval ex)
dim notin
notin = true
if vexe = "*" then
notin = false
elseif instr(1, vexe, "|") > 0 then
dim tempexe
tempexe = split(vexe, "|")
dim i
i = 0
for i = 0 to ubound(tempexe)
if lcase(ex) = tempexe(i) then
notin = false
exit for
end if
next
else
if vexe = lcase(ex) then
notin = false
end if
end if
checkexe = notin
end function
"==============================
"把数字转换为文件大小显示方式
"==============================
public function getsize(byval size)
if size < 1024 then
getsize = formatnumber(size, 2) & "b"
elseif size >= 1024 and size < 1048576 then
getsize = formatnumber(size / 1024, 2) & "kb"
elseif size >= 1048576 then
getsize = formatnumber((size / 1024) / 1024, 2) & "mb"
end if
end function
"==============================
"二进制数据转换为字符
"==============================
private function bytes2str(byval byt)
if lenb(byt) = 0 then
bytes2str = ""
exit function
end if
dim mystream, bstr
set mystream = server.createobject("adodb.stream")
mystream.type = 2
mystream.mode = 3
mystream.open
mystream.writetext byt
mystream.position = 0
mystream.charset = vcharset
mystream.position = 2
bstr = mystream.readtext()
mystream.close
set mystream = nothing
bytes2str = bstr
end function
"==============================
"获取错误描述
"==============================
private function geterr(byval num)
select case num
case 0
geterr = "数据处理完毕!"
case 1
geterr = "上传数据超过" & getsize(vmaxsize) & "限制!可设置maxsize属性来改变限制!"
case 2
geterr = "未设置上传表单enctype属性为multipart/form-data或者未设置method属性为post,上传无效!"
case 3
geterr = "含有非法扩展名(" & verrexe & ")文件!只能上传扩展名为" & replace(vexe, "|", ",") & "的文件"
case 4
geterr = "对不起,程序不允许使用相同name属性的文件域!"
case 5
geterr = "单个文件大小超出" & getsize(vsinglesize) & "的上传限制!"
end select
end function
"==============================
"根据日期生成随机文件名
"==============================
private function getname()
dim y, m, d, h, mm, s, r
randomize
y = year(now)
m = month(now)
if m < 10 then m = "0" & m
d = day(now)
if d < 10 then d = "0" & d
h = hour(now)
if h < 10 then h = "0" & h
mm = minute(now)
if mm < 10 then mm = "0" & mm
s = second(now)
if s < 10 then s = "0" & s
r = 0
r = cint(rnd() * 1000)
if r < 10 then r = "00" & r
if r < 100 and r >= 10 then r = "0" & r
getname = y & m & d & h & mm & s & r
end function
"==============================
"检测上传类型是否为multipart/form-data
"==============================
private function checkentrytype()
dim contenttype, ctarray, barray, requestmethod
requestmethod = trim(lcase(request.servervariables("request_method")))
if requestmethod = "" or requestmethod<>"post" then
checkentrytype = false
exit function
end if
contenttype = lcase(request.servervariables("http_content_type"))
ctarray = split(contenttype, ";")
if ubound(ctarray)>= 0 then
if trim(ctarray(0)) = "multipart/form-data" then
checkentrytype = true
vboundary = split(contenttype, "boundary=")(1)
else
checkentrytype = false
end if
else
checkentrytype = false
end if
end function
"==============================
"获取上传表单值,参数可选,如果为-1则返回一个包含所有表单项的一个dictionary对象
"==============================
public function forms(byval formname)
if trim(formname) = "-1" then
set forms = form
else
if form.exists(lcase(formname)) then
forms = form(lcase(formname))
else
forms = ""
end if
end if
end function
"==============================
"获取上传的文件类,参数可选,如果为-1则返回一个包含所有上传文件类的一个dictionary对象
"==============================
public function files(byval formname)
if trim(formname) = "-1" then
set files = fils
else
if fils.exists(lcase(formname)) then
set files = fils(lcase(formname))
else
set files = nothing
end if
end if
end function
end class
%>
<script language="jscript" runat="server">
function getnewfileobj(){
return new uploadfile();
}
function uploadfile(){
this.formname="";
this.newname = "";
this.localname="";
this.filename="";
this.usersetname="";
this.contenttype="";
this.size=0;
this.value=null;
this.path = "";
this.extend="";
}
//保存文件的方法
uploadfile.prototype.savetofile=function(){
var arg = arguments;
var path ,option, overwrite
if(arg.length==0){return {error:true,description:"参数错误,请传递至少一个参数"};}
if(arg.length==1){path = arg[0];option=0;overwrite=true;}
if(arg.length==2){path = arg[0];option=arg[1];overwrite=true;}
if(arg.length==3){path = arg[0];option=arg[1];overwrite=arg[2];}
if(arg.length>3){return {error:true,description:"参数错误,最多传递3个参数"};}
try{
var isp = (path.indexof(":")==1)
if(!isp){
path = server.mappath(path);
}
path = path.replace("/","");
if(path.substr(path.length-1,1)!=""){path = path + "";}
this.createfolder(path);
this.path = path;
if(option==1){
path = path + this.localname;this.filename = this.localname;
}else{
if(option==-1 && this.usersetname!=""){
path = path + this.usersetname + "." + this.extend;this.filename = this.usersetname + "." + this.extend;
}else{
path = path + this.newname;this.filename = this.newname;
}
}
if(!overwrite){
path = this.getfilepath();
}
var tmps教程trm;
tmpstrm = server.createobject("adodb.stream");
tmpstrm.mode=3;
tmpstrm.type= 1;
tmpstrm.open();
var info = server.createobject("adodb.recordset");
info.fields.append("value", 205,-1);
info.open();
info.addnew();
info("value").appendchunk(this.value);
tmpstrm.write(info("value"));
info("value").appendchunk(null);
info.update();
info.close();
info = null;
tmpstrm.savetofile(path,2);
tmpstrm.close();
tmpstrm = null;
return {error:false,description:"成功保存文件"};
}catch(ex){
return {error:true,description:ex.description};
}
};
//获取二进制数据的方法
uploadfile.prototype.getbytes=function(){
return this.value
};
uploadfile.prototype.createfolder=function(folderpath){
var ofso;
ofso =server.createobject("scripting.filesystemobject" );
var sparent;
sparent = ofso.getparentfoldername( folderpath );
if(sparent == ""){return;}
if(!ofso.folderexists(sparent)){this.createfolder( sparent );}
if(!ofso.folderexists(folderpath)){ofso.createfolder(folderpath);}
ofso = null;
};
uploadfile.prototype.getfilepath=function(){
var ofso,fname,fnamel,i=0;
ofso =server.createobject("scripting.filesystemobject" );
fname = this.path + this.filename;
fnamel = this.filename.substr(0,this.filename.lastindexof("."));
while(ofso.fileexists(fname)){
fname = this.path + fnamel + "(" + i + ")." + this.extend;
this.filename = fnamel + "(" + i + ")." + this.extend
i++;
}
ofso = null;
return fname;
};
</script>