服务器发送的头部ContenType种类

application/acad	*.dwg
application/applefile
application/astound	*.asd *.asn
application/dsptype	*.tsp
application/dxf	*.dxf
application/futuresplash	*.spl
application/gzip	*.gz
application/listenup	*.ptlk
application/mac-binhex40	*.hqx
application/mbedlet	*.mbd
application/mif	*.mif
application/msexcel	*.xls *.xla
application/mshelp	*.hlp *.chm
application/mspowerpoint	*.ppt *.ppz *.pps *.pot
application/msword	*.doc *.dot
application/octet-stream	*.bin *.exe *.com *.dll *.class
application/oda	*.oda
application/pdf	*.pdf
application/postscript	*.ai *.eps *.ps
application/rtc	*.rtc
application/rtf	*.rtf
application/studiom	*.smp
application/toolbook	*.tbk
application/vocaltec-media-desc	*.vmd
application/vocaltec-media-file	*.vmf
application/xhtml+xml	*.htm *.html *.shtml *.xhtml
application/xml	*.xml
application/x-bcpio	*.bcpio
application/x-compress	*.z
application/x-cpio	*.cpio
application/x-csh	*.csh
application/x-director	*.dcr *.dir *.dxr
application/x-dvi	*.dvi
application/x-envoy	*.evy
application/x-gtar	*.gtar
application/x-hdf	*.hdf
application/x-httpd-php	*.php *.phtml
application/x-javascript	*.js
application/x-latex	*.latex
application/x-macbinary	*.bin
application/x-mif	*.mif
application/x-netcdf	*.nc *.cdf
application/x-nschat	*.nsc
application/x-sh	*.sh
application/x-shar	*.shar
application/x-shockwave-flash	*.swf *.cab
application/x-sprite	*.spr *.sprite
application/x-stuffit	*.sit
application/x-supercard	*.sca
application/x-sv4cpio	*.sv4cpio
application/x-sv4crc	*.sv4crc
application/x-tar	*.tar
application/x-tcl	*.tcl
application/x-tex	*.tex
application/x-texinfo	*.texinfo *.texi
application/x-troff	*.t *.tr *.roff
application/x-troff-man	*.man *.troff
application/x-troff-me	*.me *.troff
application/x-troff-ms	*.me *.troff
application/x-ustar	*.ustar
application/x-wais-source	*.src
application/x-www-form-urlencoded
application/zip	*.zip
audio/basic	*.au *.snd
audio/echospeech	*.es
audio/tsplayer	*.tsi
audio/voxware	*.vox
audio/x-aiff	*.aif *.aiff *.aifc
audio/x-dspeeh	*.dus *.cht
audio/x-midi	*.mid *.midi
audio/x-mpeg	*.mp2
audio/x-pn-realaudio	*.ram *.ra
audio/x-pn-realaudio-plugin	*.rpm
audio/x-qt-stream	*.stream
audio/x-wav	*.wav
drawing/x-dwf	*.dwf
image/cis-cod	*.cod
image/cmu-raster	*.ras
image/fif	*.fif
image/gif	*.gif
image/ief	*.ief
image/jpeg	*.jpeg *.jpg *.jpe
image/png	*.png
image/tiff	*.tiff *.tif
image/vasa	*.mcf
image/vnd.wap.wbmp	*.wbmp
image/x-freehand	*.fh4 *.fh5 *.fhc
image/x-portable-anymap	*.pnm
image/x-portable-bitmap	*.pbm
image/x-portable-graymap	*.pgm
image/x-portable-pixmap	*.ppm
image/x-rgb	*.rgb
image/x-windowdump	*.xwd
image/x-xbitmap	*.xbm
image/x-xpixmap	*.xpm
message/external-body
message/http
message/news
message/partial
message/rfc822
model/vrml	*.wrl
multipart/alternative
multipart/byteranges
multipart/digest
multipart/encrypted
multipart/form-data
multipart/mixed
multipart/parallel
multipart/related
multipart/report
multipart/signed
multipart/voice-message
text/comma-separated-values	*.csv
text/css	*.css
text/html	*.htm *.html *.shtml
text/javascript	*.js
text/plain	*.txt
text/richtext	*.rtx
text/rtf	*.rtf
text/tab-separated-values	*.tsv
text/vnd.wap.wml	*.wml
application/vnd.wap.wmlc	*.wmlc
text/vnd.wap.wmlscript	*.wmls
application/vnd.wap.wmlscriptc	*.wmlsc
text/xml	*.xml
text/xml-external-parsed-entity
text/x-setext	*.etx
text/x-sgml	*.sgm *.sgml
text/x-speech	*.talk *.spc
video/mpeg	*.mpeg *.mpg *.mpe
video/quicktime	*.qt *.mov
video/vnd.vivo	*.viv *.vivo
video/x-msvideo	*.avi
video/x-sgi-movie	*.movie
workbook/formulaone	*.vts *.vtts
x-world/x-3dmf	*.3dmf *.3dm *.qd3d *.qd3
x-world/x-vrml	*.wrl