一下是文件后缀与MIME类型的对照表

​123

application/vnd.lotus-1-2-3

3gp

video/3gpp

​A开头：

​aab

application/x-authoware-bin

​aam

application/x-authoware-map

​aas

application/x-authoware-seg

​ai

application/postscript

​aif audio/x-aiff

​aifcaudio/x-aiff

​aiffaudio/x-aiff

​als

audio/X-Alpha5

​amc

application/x-mpeg

​ani

application/octet-stream

​asc text/plain

​asd

application/astound

​asf

video/x-ms-asf

​asn

application/astound

​asp

application/x-asap

​asx

video/x-ms-asf

​au audio/basic

​avb

application/octet-stream

​avi

video/x-msvideo

​awb

audio/amr-wb

B开头

​bcpio

application/x-bcpio

​bin

application/octet-stream

​bld

application/bld

​bld2

application/bld2

​bmp

application/x-MS-bmp

​bpk

application/octet-stream

​bz2

application/x-bzip2

C开头

​cal

image/x-cals

​ccn

application/x-cnc

​cco

application/x-cocoa

​cdf

application/x-netcdf

​cgi

magnus-internal/cgi

​chat

application/x-chat

​class

application/octet-stream

​clp

application/x-msclip

​cmx

application/x-cmx

​co

application/x-cult3d-object

​cod

image/cis-cod

​cpio

application/x-cpio

​cpt

application/mac-compactpro

​crd

application/x-mscardfile

​csh

application/x-csh

​csm

chemical/x-csml

​csml

chemical/x-csml

​css text/css

​cur

application/octet-stream

D开头

​dcm

x-lml/x-evm

​dcr

application/x-director

​dcx

image/x-dcx

​dhtml

text/html

​dir

application/x-director

​dll

application/octet-stream

​dmg

application/octet-stream

​dms

application/octet-stream

​doc

application/msword

​dot

application/x-dot

​dvi

application/x-dvi

​dwf

drawing/x-dwf

​dwg

application/x-autocad

​dxf

application/x-autocad

​dxr

application/x-director

E开头

​ebk

application/x-expandedbook

​emb

chemical/x-embl-dl-nucleotide

​embl

chemical/x-embl-dl-nucleotide

​eps

application/postscript

​eri

image/x-eri

​es

audio/echospeech

​esl

audio/echospeech

​etc

application/x-earthtime

​etx

text/x-setext

​evm

x-lml/x-evm

​evy

application/x-envoy

​exe

application/octet-stream

F开头

​fh4

image/x-freehand

​fh5

image/x-freehand

​fhc

image/x-freehand

​fif image/fif

​fm

application/x-maker

​fpx

image/x-fpx

​fvi

video/isivideo

G开头

​gau

chemical/x-gaussian-input

​gca

application/x-gca-compressed

​gdb

x-lml/x-gdb

​gif image/gif

​gps

application/x-gps

​gtar

application/x-gtar

​gz

application/x-gzip

H开头

​hdf

application/x-hdf

​hdm

text/x-hdml

​hdml

text/x-hdml

​hlp

application/winhlp

​hqx

application/mac-binhex40

​htm text/html

​html text/html

​hts text/html

I开头

​ice

x-conference/x-cooltalk

​ico

application/octet-stream

​ief image/ief

​ifm image/gif

​ifs image/ifs

​imy

audio/melody

​ins

application/x-NET-Install

​ips

application/x-ipscript

​ipx

application/x-ipix

​it audio/x-mod

​itz

audio/x-mod

​ivr

i-world/i-vrml

J开头

​j2k image/j2k

​jad

text/vnd.sun.j2me.app-descriptor

​jam

application/x-jam

​jar

application/java-archive

​jnlp

application/x-java-jnlp-file

​jpe image/jpeg

​jpeg

image/jpeg

​jpg image/jpeg

​jpz image/jpeg

​js

application/x-javascript

​jwc

application/jwc

K开头

​kjx

application/x-kjx

L开头

​lak

x-lml/x-lak

​latex

application/x-latex

​lcc

application/fastman

​lcl

application/x-digitalloca

​lcr

application/x-digitalloca

​lgh

application/lgh

​lha

application/octet-stream

​lml

x-lml/x-lml

​lmlpack

x-lml/x-lmlpack

​lsf

video/x-ms-asf

​lsx

video/x-ms-asf

​lzh

application/x-lzh

M开头

​m13

application/x-msmediaview

​m14

application/x-msmediaview

​m15

audio/x-mod

​m3u

audio/x-mpegurl

​m3url

audio/x-mpegurl

​ma1 audio/ma1

​ma2 audio/ma2

​ma3 audio/ma3

​ma5 audio/ma5

​man

application/x-troff-man

​map

magnus-internal/imagemap

​mbd

application/mbedlet

​mct

application/x-mascot

​mdb

application/x-msaccess

​mdz

audio/x-mod

​me

application/x-troff-me

​mel

text/x-vmel

​mi

application/x-mif

​mid audio/midi

​midi

audio/midi

​mif

application/x-mif

​mil

image/x-cals

​mio

audio/x-mio

​mmf

application/x-skt-lbs

​mng

video/x-mng

​mny

application/x-msmoney

​moc

application/x-mocha

​mocha

application/x-mocha

​mod

audio/x-mod

​mof

application/x-yumekara

​mol

chemical/x-mdl-molfile

​mop

chemical/x-mopac-input

​mov

video/quicktime

​movie

video/x-sgi-movie

​mp2

audio/x-mpeg

​mp3

audio/x-mpeg

​mp4 video/mp4

​mpc

application/vnd.mpohun.certificate

​mpe video/mpeg

​mpeg

video/mpeg

​mpg video/mpeg

​mpg4 video/mp4

​mpga

​mpn

application/vnd.mophun.application

​mpp

application/vnd.ms-project

​mps

application/x-mapserver

​mrl text/x-mrml

mrm

application/x-mrm

​ms

application/x-troff-ms

​mts

application/metastream

​mtx

application/metastream

​mtz

application/metastream

​mzv

application/metastream

N开头

​nar

application/zip

​nbmp

image/nbmp

​nc

application/x-netcdf

​ndb

x-lml/x-ndb

​ndwn

application/ndwn

​nif

application/x-nif

​nmz

application/x-scream

​nokia-op-logo

image/vnd.nok-oplogo-color

​npx

application/x-netfpx

​nsnd

audio/nsnd

​nva

application/x-neva1

O开头

​oda

application/oda

​oom

application/x-AtlasMate-Plugin

P开头

​pac

audio/x-pac

​pae

audio/x-epac

​pan

application/x-pan

​pbm

image/x-portable-bitmap

​pcx

image/x-pcx

​pda

image/x-pda

​pdb

chemical/x-pdb

​pdf

application/pdf

​pfr

application/font-tdpfr

​pgm

image/x-portable-graymap

​pict

image/x-pict

​pm

application/x-perl

​pmd

application/x-pmd

​png image/png

​pnm

image/x-portable-anymap

​pnz image/png

​pot

application/vnd.ms-powerpoint

​ppm

image/x-portable-pixmap

​pps

application/vnd.ms-powerpoint

​ppt

application/vnd.ms-powerpoint

​pqf

application/x-cprplayer

​pqi

application/cprplayer

​prc

application/x-prc

​proxy

application/x-ns-proxy-autoconfig

​ps

application/postscript

​ptlk

application/listenup

​pub

application/x-mspublisher

​pvx

video/x-pv-pvx

Q开头

​qcp

audio/vnd.qcelp

​qt

video/quicktime

​qti

image/x-quicktime

​qtif

image/x-quicktime

R开头

​r3t

text/vnd.rn-realtext3d

​ra

audio/x-pn-realaudio

​ram

audio/x-pn-realaudio

​rar

application/x-rar-compressed

​ras image/x-cmu-raster

rdf

application/rdf+xml

​rf

image/vnd.rn-realflash

​rgb

image/x-rgb

​rlf

application/x-richlink

​rm

audio/x-pn-realaudio

​rmf

audio/x-rmf

​rmm

audio/x-pn-realaudio

​rmvb

audio/x-pn-realaudio

​rnx

application/vnd.rn-realplayer

​roff

application/x-troff

​rp

image/vnd.rn-realpix

​rpm

audio/x-pn-realaudio-plugin

​rt

text/vnd.rn-realtext

​rte

x-lml/x-gps

​rtf

application/rtf

​rtg

application/metastream

​rtx

text/richtext

​rv

video/vnd.rn-realvideo

​rwc

application/x-rogerwilco

S开头

​s3m

audio/x-mod

​s3z

audio/x-mod

​sca

application/x-supercard

​scd

application/x-msschedule

​sdf

application/e-score

​sea

application/x-stuffit

​sgm

text/x-sgml

​sgml

text/x-sgml

​sh

application/x-sh

​shar

application/x-shar

​shtml

magnus-internal/parsed-html

​shw

application/presentations

​si6 image/si6

​si7

image/vnd.stiwap.sis

​si9

image/vnd.lgtwap.sis

​sis

application/vnd.symbian.install

​sit

application/x-stuffit

​skd

application/x-Koan

​skm

application/x-Koan

​skp

application/x-Koan

​skt

application/x-Koan

​slc

application/x-salsa

​smd

audio/x-smd

​smi

application/smil

​smil

application/smil

​smp

application/studiom

​smz

audio/x-smd

​snd

audio/basic

​spc

text/x-speech

​spl

application/futuresplash

​spr

application/x-sprite

​sprite

application/x-sprite

​spt

application/x-spt

​src

application/x-wais-source

​stk

application/hyperstudio

​stm

audio/x-mod

​sv4cpio

application/x-sv4cpio

​sv4crc

application/x-sv4crc

​svf image/vnd

​svg

image/svg-xml

​svh image/svh

​svr

x-world/x-svr

​swf

application/x-shockwave-flash

​swfl

application/x-shockwave-flash

T开头

​t

application/x-troff

​tad

application/octet-stream

​talk

text/x-speech

​tar

application/x-tar

​taz

application/x-tar

​tbp

application/x-timbuktu

​tbt

application/x-timbuktu

​tcl

application/x-tcl

​tex

application/x-tex

​texi application/x-texinfo

texinfo

application/x-texinfo

​tgz

application/x-tar

​thm

application/vnd.eri.thm

​tif image/tiff

​tiff

image/tiff

​tki

application/x-tkined

​tkined

application/x-tkined

​toc

application/toc

​toy image/toy

​tr

application/x-troff

​trk

x-lml/x-gps

​trm

application/x-msterminal

​tsi

audio/tsplayer

​tsp

application/dsptype

​tsv

text/tab-separated-values

​ttf

application/octet-stream

​ttz

application/t-time

​txt text/plain

U开头

​ult

audio/x-mod

​ustar

application/x-ustar

​uu

application/x-uuencode

​uue

application/x-uuencode

V开头

​vcd

application/x-cdlink

​vcf

text/x-vcard

​vdo video/vdo

​vib audio/vib

​viv video/vivo

​vivo

video/vivo

​vmd

application/vocaltec-media-desc

​vmf

application/vocaltec-media-file

​vmi

application/x-dreamcast-vms-info

​vms

application/x-dreamcast-vms

​vox

audio/voxwarevqe

audio/x-twinvq-plugin

​vqf

audio/x-twinvq

​vql

audio/x-twinvq

​vre

x-world/x-vream

​vrml

x-world/x-vrml

​vrt

x-world/x-vrt

​vrw

x-world/x-vream

​vts

workbook/formulaone

W开头

​wav

audio/x-wav

​wax

audio/x-ms-wax

​wbmp

image/vnd.wap.wbmp

​web

application/vnd.xara

​wi

image/wavelet

​wis

application/x-InstallShield

​wm

video/x-ms-wm

​wma

audio/x-ms-wma

​wmd

application/x-ms-wmd

​wmf

application/x-msmetafile

​wml

text/vnd.wap.wml

​wmlc

application/vnd.wap.wmlc

​wmls

text/vnd.wap.wmlscript

​wmlsc

application/vnd.wap.wmlscriptc

​wmlscript

text/vnd.wap.wmlscript

​wmv

audio/x-ms-wmv

​wmx

video/x-ms-wmx

​wmz

application/x-ms-wmz

​wpng

image/x-up-wpng

​wpt

x-lml/x-gps

​wri

application/x-mswrite

​wrl

x-world/x-vrml

​wrz

x-world/x-vrml

​ws

text/vnd.wap.wmlscript

​wsc

application/vnd.wap.wmlscriptc

​wv

video/waveletwvx

video/x-ms-wvx

​wxl

application/x-wxl

X开头

​x-gzip

application/x-gzip

​xar

application/vnd.xara

​xbm

image/x-xbitmap

​xdm

application/x-xdma

​xdma

application/x-xdma

​xdw

application/vnd.fujixerox.docuworks

​xht

application/xhtml+xml

​xhtm

application/xhtml+xml

​xhtml

application/xhtml+xml

​xla

application/vnd.ms-excel

​xlc

application/vnd.ms-excel

​xll

application/x-excel

​xlm

application/vnd.ms-excel

​xls

application/vnd.ms-excel

​xlt

application/vnd.ms-excel

​xlw

application/vnd.ms-excel

​xm

audio/x-modxml text/xml

​xmz

audio/x-mod

​xpi

application/x-xpinstall

​xpm

image/x-xpixmap

​xsit text/xml

​xsl text/xml

​xul text/xul

​xwd

image/x-xwindowdump

​xyz

chemical/x-pdb

Y开头

​yz1

application/x-yz1

Z开头

​z

application/x-compress

​zac

application/x-zaurus-zac

​zip

application/zip