Html 파일에서 contentType에 따른 File Type...

이걸 이용해서 File download가 가능하다..

application/acad
AutoCAD drawing files
dwg

application/clariscad
ClarisCAD files
ccad

application/dxf
DXF (AutoCAD)
dxf

application/msaccess
Microsoft Access file
mdb

application/msword
Microsoft Word file
doc

application/octet-stream
Uninterpreted binary
bin

application/pdf
PDF (Adobe Acrobat)
pdf

application/postscript-x
PostScript-x, encapsulated PostScript-x,
Adobe Illustrator
ai, ps, eps

application/rtf
Rich Text Format file
rtf rtf

application/vnd.ms-excel
Microsoft Excel file
xls

application/vnd.ms-powerpoint
Microsoft PowerPoint file
ppt

application/x-cdf
Channel Definition Format file
cdf

application/x-csh
C-shell script-x
csh csh

application/x-dvi
TeX
dvi dvi dvi

application/x-javascript-x
JavaScript-x source file
js

application/x-latex
LaTeX source file
latex

application/x-mif
FrameMaker MIF format
mif

application/x-msexcel
Microsoft Excel file
xls

application/x-mspowerpoint
Microsoft PowerPoint file
ppt

application/x-tcl
TCL script-x
tcl

application/x-tex
TeX source file
tex

application/x-texinfo
Texinfo (emacs)
texinfo, texi

application/x-troff
troff file
t, tr, roff t, tr, roff

application/x-troff-man
troff with MAN macros
man

application/x-troff-me
troff with ME macros
me

application/x-troff-ms
troff with MS macros
ms

application/x-wais-source
WAIS source file
src

application/zip
ZIP archive
zip

audio/basic
Basic audio (usually m-law)
au, snd

audio/x-aiff
AIFF audio
aif, aiff, aifc

audio/x-wav
Windows WAVE audio
wav

image/gif
GIF image
gif

image/ief
Image Exchange Format file
ief

image/jpeg
JPEG image
jpeg, jpg jpe

image/tiff
TIFF image
tiff, tif

image/x-cmu-raster
CMU Raster image
ras

image/x-portable-anymap
PBM Anymap image format
pnm

image/x-portable-bitmap
PBM Bitmap image format
pbm

image/x-portable-graymap
PBM Graymap image format
pgm

image/x-portable-pixmap
PBM Pixmap image format
ppm

image/x-rgb
RGB image format
rgb

image/x-xbitmap
X Bitmap image
xbm

image/x-xpixmap
X Pixmap image
xpm

image/x-xwindowdump
X Windows Dump (xwd)
xwd

multipart/x-gzip
GNU ZIP archive
gzip

multipart/x-zip
PKZIP archive
zip

text/css
Cascading style sheet
css

text/html
HTML file
html, htm

text/plain
Plain text
txt

text/richtext
MIME Rich Text
rtx

text/tab-separated- values
Text with tab-separated values
tsv

text/xml
XML document
xml

text/x-setext
Struct-Enhanced text
etx

text/xsl
XSL style sheet
xsl

video/mpeg
MPEG video
mpeg, mpg, mpe

video/quicktime
QuickTime video
qt, mov

video/x-msvideo
Microsoft Windows video
avi

video/x-sgi-movie
SGI movie player format
movie

이런 것들도 있지만,,

JSP에서..

<%

    response.setHeader("Content-Type", "aapplication/x-msdownload");
    response.setHeader("Content-Disposition", "attachment;filename=파일명;");
%>

<%=파일내용출력%>

요케 하면 무조건 download가 가능하다..