Question

用asp.net上传文件到文件夹，，，为什么保存不了，，，总是报错

报错： Could not find a part of the path 'd:\fil\'.

protected void Button1_Click(object sender, EventArgs e)
{
string filepath = FileUpload1.PostedFile.FileName;
string strdata= FileToBinary(filepath);
string pat = "d:\\fil\\";
if (BinaryToFile(pat, strdata))
{
Response.Write("<script> alt('保存成功！')</script>");
}
else
{
Response.Write("<script> alt(' 保存失败！')</script>");

}
}
public static string FileToBinary(string fpath)
{
FileStream fs = new FileStream(fpath, FileMode.Open, FileAccess.Read);
int fileLength = Convert.ToInt32(fs.Length);
byte[] fileBytes = new byte[fileLength];
BinaryReader br = new BinaryReader(fs);
for (int i = 0; i < fileLength; i++)
{
br.Read(fileBytes, 0, fileLength);
}
br.Close();
fs.Close();
string strData = Convert.ToBase64String(fileBytes);
return strData;
}
public static bool BinaryToFile(string fpath, string binary)
{
try
{
FileStream fs = new FileStream(fpath, FileMode.Create, FileAccess.Write);
BinaryWriter bw = new BinaryWriter(fs);
bw.Write(Convert.FromBase64String(binary));
bw.Close();
fs.Close();
return true;
}
catch (Exception E)
{
throw new Exception(E.Message);
}
}

Answer 1

以下是一个上传图片的ASP程序，只要修改下后缀名就可上传视频文件，并保存至数据库

---上传组件(upload_5xsoft.asp)

<%
dim Data_5xsoft

Class upload_5xsoft

dim objForm,objFile,Version

Public function Form(strForm)
strForm=lcase(strForm)
if not objForm.exists(strForm) then
Form=""
else
Form=objForm(strForm)
end if
end function

Public function File(strFile)
strFile=lcase(strFile)
if not objFile.exists(strFile) then
set File=new FileInfo
else
set File=objFile(strFile)
end if
end function

Private Sub Class_Initialize
dim RequestData,sStart,vbCrlf,sInfo,iInfoStart,iInfoEnd,tStream,iStart,theFile
dim iFileSize,sFilePath,sFileType,sFormValue,sFileName
dim iFindStart,iFindEnd
dim iFormStart,iFormEnd,sFormName
Version="化境HTTP上传程序 Version 2.1"
set objForm=Server.CreateObject("Scripting.Dictionary")
set objFile=Server.CreateObject("Scripting.Dictionary")
if Request.TotalBytes<1 then Exit Sub
set tStream = Server.CreateObject("adodb.stream")
set Data_5xsoft = Server.CreateObject("adodb.stream")
Data_5xsoft.Type = 1
Data_5xsoft.Mode =3
Data_5xsoft.Open
Data_5xsoft.Write Request.BinaryRead(Request.TotalBytes)
Data_5xsoft.Position=0
RequestData =Data_5xsoft.Read

iFormStart = 1
iFormEnd = LenB(RequestData)
vbCrlf = chrB(13) & chrB(10)
sStart = MidB(RequestData,1, InStrB(iFormStart,RequestData,vbCrlf)-1)
iStart = LenB (sStart)
iFormStart=iFormStart+iStart+1
while (iFormStart + 10) < iFormEnd
iInfoEnd = InStrB(iFormStart,RequestData,vbCrlf & vbCrlf)+3
tStream.Type = 1
tStream.Mode =3
tStream.Open
Data_5xsoft.Position = iFormStart
Data_5xsoft.CopyTo tStream,iInfoEnd-iFormStart
tStream.Position = 0
tStream.Type = 2
'tStream.Charset ="gb2312"
tStream.Charset ="utf-8"
sInfo = tStream.ReadText
tStream.Close
'取得表单项目名称
iFormStart = InStrB(iInfoEnd,RequestData,sStart)
iFindStart = InStr(22,sInfo,"name=""",1)+6
iFindEnd = InStr(iFindStart,sInfo,"""",1)
sFormName = lcase(Mid (sinfo,iFindStart,iFindEnd-iFindStart))
'如果是文件
if InStr (45,sInfo,"filename=""",1) > 0 then
set theFile=new FileInfo
'取得文件名
iFindStart = InStr(iFindEnd,sInfo,"filename=""",1)+10
iFindEnd = InStr(iFindStart,sInfo,"""",1)
sFileName = Mid (sinfo,iFindStart,iFindEnd-iFindStart)
theFile.FileName=getFileName(sFileName)
theFile.FilePath=getFilePath(sFileName)
theFile.FileExt=GetFileExt(sFileName)
'取得文件类型
iFindStart = InStr(iFindEnd,sInfo,"Content-Type: ",1)+14
iFindEnd = InStr(iFindStart,sInfo,vbCr)
theFile.FileType =Mid (sinfo,iFindStart,iFindEnd-iFindStart)
theFile.FileStart =iInfoEnd
theFile.FileSize = iFormStart -iInfoEnd -3
theFile.FormName=sFormName
if not objFile.Exists(sFormName) then
objFile.add sFormName,theFile
end if
else
'如果是表单项目
tStream.Type =1
tStream.Mode =3
tStream.Open
Data_5xsoft.Position = iInfoEnd
Data_5xsoft.CopyTo tStream,iFormStart-iInfoEnd-3
tStream.Position = 0
tStream.Type = 2
' tStream.Charset ="gb2312"
tStream.Charset ="utf-8"
sFormValue = tStream.ReadText
tStream.Close
if objForm.Exists(sFormName) then
objForm(sFormName)=objForm(sFormName)&", "&sFormValue
else
objForm.Add sFormName,sFormValue
end if
end if
iFormStart=iFormStart+iStart+1
wend
RequestData=""
set tStream =nothing
End Sub

Private Sub Class_Terminate
if Request.TotalBytes>0 then
objForm.RemoveAll
objFile.RemoveAll
set objForm=nothing
set objFile=nothing
Data_5xsoft.Close
set Data_5xsoft =nothing
end if
End Sub

Private function GetFilePath(FullPath)
If FullPath <> "" Then
GetFilePath = left(FullPath,InStrRev(FullPath, "\"))
Else
GetFilePath = ""
End If
End function

Private function GetFileExt(FullPath)
If FullPath <> "" Then
GetFileExt = mid(FullPath,InStrRev(FullPath, ".")+1)
Else
GetFileExt = ""
End If
End function

Private function GetFileName(FullPath)
If FullPath <> "" Then
GetFileName = mid(FullPath,InStrRev(FullPath, "\")+1)
Else
GetFileName = ""
End If
End function
End Class

Class FileInfo
dim FormName,FileName,FilePath,FileSize,FileExt,FileType,FileStart
Private Sub Class_Initialize
FileName = ""
FilePath = ""
FileSize = 0
FileStart= 0
FormName = ""
FileType = ""
FileExt = ""
End Sub

Public function SaveAs(FullPath)
dim dr,ErrorChar,i
SaveAs=true
if trim(fullpath)="" or FileStart=0 or FileName="" or right(fullpath,1)="/" then exit function
set dr=CreateObject("Adodb.Stream")
dr.Mode=3
dr.Type=1
dr.Open
Data_5xsoft.position=FileStart
Data_5xsoft.copyto dr,FileSize
dr.SaveToFile FullPath,2
dr.Close
set dr=nothing
SaveAs=false
end function
End Class
%>

------处理页面--------

<!--#include file="include/upload_5xsoft.asp"-->
<body>
<%
'获取表单数据
dim name,from,sort,image,xinjiu,price,about,fname
set upload=new upload_5xsoft ''建立上传对象
name=trim(upload.form("name"))
from=trim(upload.form("from"))
sort=trim(upload.form("sort"))
xinjiu=trim(upload.form("new"))
price=trim(upload.form("price"))
about=trim(upload.form("about"))

'获取上传的图像
if trim(upload.file("image").filename)="" then
fname="nofile.png"
else
set image=upload.file("image")
'判断上传文件的格式
if lcase(image.FileExt) <> "jpg" and lcase(image.FileExt)<> "gif" then
set image=nothing
set upload=nothing
cnn.close
set cnn=nothing
showalert("上传的图片格式只能是(jpg和gif)!")
showscript("window.location.href='good_add.asp'")
end if

'图片文件名使用上传的时间表示
dim str
str=now
str=replace(str,"-","")
str=replace(str,":","")
str=replace(str," ","")
fname=str & "." & image.FileExt
'上传文件到指定文件夹
image.saveas server.MapPath("../upload/" & fname)
set image=nothing
set upload=nothing ''删除此对象
end if
'将物品信息写入数据库
dim rs
set rs=server.CreateObject("adodb.recordset")
rs.open "T_GOOD",cnn,3,3
rs.addnew
rs("G_name")=name
rs("G_from")=from
rs("G_image")=fname
rs("G_sort")=sort
rs("G_starttime")=now
rs("G_price")=cdbl(price)
rs("G_new")=cint(xinjiu)
rs("G_state")=1
rs("G_about")=about
rs.update
rs.close
set rs=nothing
cnn.close
set cnn=nothing
showalert("物品添加成功！")
showscript("window.location.href='good_query.asp'")
%>
</body>
</html>

如果对您有帮助，请记得采纳为满意答案，谢谢！祝您生活愉快！

vaela

Answer 2

string pat = "d:\\fil\\";
D盘没有文件夹fil，在D盘找不到文件夹fil，在D盘创建文件夹fil

Answer 3

string pat = "d:\\fil\\"+FileUpload1.FileName;