最近在弄文件上传、下载、在线预览时经常需要设置请求标头或者响应标头的Content-Type 属性。所以研究了一下spring支持哪些Content-Type，通过研究MediaTypeFactory.getMediaType的源码，可以得知spring是将支持的Content-Type 维护在/org/springframework/http/mime.types文件中。通过上面查找文件的路径找到了org.springframework:spring-web包下http目录中的mime.types文件。
前言
最近在弄文件上传、下载、在线预览时经常需要设置请求标头或者响应标头的Content-Type 属性。所以研究了一下spring支持哪些Content-Type，通过研究MediaTypeFactory.getMediaType的源码，可以得知spring是将支持的Content-Type 维护在/org/springframework/http/mime.types文件中。
private static MultiValueMap<String, MediaType> parseMimeTypes() {
InputStream is = MediaTypeFactory.class.getResourceAsStream("/org/springframework/http/mime.types");
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(is, StandardCharsets.US_ASCII));
Throwable var2 = null;
try {
MultiValueMap<String, MediaType> result = new LinkedMultiValueMap();
label111:
while(true) {
String line;
if ((line = reader.readLine()) != null) {
if (line.isEmpty() || line.charAt(0) == '#') {
continue;
}
String[] tokens = StringUtils.tokenizeToStringArray(line, " \t\n\r\f");
MediaType mediaType = MediaType.parseMediaType(tokens[0]);
int i = 1;
while(true) {
if (i >= tokens.length) {
continue label111;
}
String fileExtension = tokens[i].toLowerCase(Locale.ENGLISH);
result.add(fileExtension, mediaType);
++i;
}
}
LinkedMultiValueMap var5 = result;
return var5;
}
} catch (Throwable var17) {
var2 = var17;
throw var17;
} finally {
if (reader != null) {
if (var2 != null) {
try {
reader.close();
} catch (Throwable var16) {
var2.addSuppressed(var16);
}
} else {
reader.close();
}
}
}
} catch (IOException var19) {
throw new IllegalStateException("Could not load '/org/springframework/http/mime.types'", var19);
}
}
通过上面查找文件的路径找到了org.springframework:spring-web包下http目录中的mime.types文件
结果打开后居然发现 有多达1838个Content-Type，不过许多都是被注释掉的。过滤掉被注释的最终能被获取出来的一共是982个，本着好记性不如烂笔头的精神，我把这982个Content-Type已经它对应的文件后缀，整理了一下，形成了下面的表格，也方便以后查阅。
mime.types文件：
spring-web将mime.types文件加载到这个map里
spring-web里支持的文件以及对应的Content-Type
| 文件类型 | MIME Type |
|---|---|
| ez | application/andrew-inset |
| aw | application/applixware |
| atom | application/atom+xml |
| atomcat | application/atomcat+xml |
| atomsvc | application/atomsvc+xml |
| ccxml | application/ccxml+xml |
| cdmia | application/cdmi-capability |
| cdmic | application/cdmi-container |
| cdmid | application/cdmi-domain |
| cdmio | application/cdmi-object |
| cdmiq | application/cdmi-queue |
| cu | application/cu-seeme |
| davmount | application/davmount+xml |
| dbk | application/docbook+xml |
| dssc | application/dssc+der |
| xdssc | application/dssc+xml |
| ecma | application/ecmascript |
| emma | application/emma+xml |
| epub | application/epub+zip |
| exi | application/exi |
| pfr | application/font-tdpfr |
| woff | application/font-woff |
| gml | application/gml+xml |
| gpx | application/gpx+xml |
| gxf | application/gxf |
| stk | application/hyperstudio |
| ink | application/inkml+xml |
| inkml | application/inkml+xml |
| ipfix | application/ipfix |
| jar | application/java-archive |
| ser | application/java-serialized-object |
| class | application/java-vm |
| js | application/javascript |
| json | application/json |
| jsonml | application/jsonml+json |
| lostxml | application/lost+xml |
| hqx | application/mac-binhex40 |
| cpt | application/mac-compactpro |
| mads | application/mads+xml |
| mrc | application/marc |
| mrcx | application/marcxml+xml |
| ma | application/mathematica |
| nb | application/mathematica |
| mb | application/mathematica |
| mathml | application/mathml+xml |
| mbox | application/mbox |
| mscml | application/mediaservercontrol+xml |
| metalink | application/metalink+xml |
| meta4 | application/metalink4+xml |
| mets | application/mets+xml |
| mods | application/mods+xml |
| m21 | application/mp21 |
| mp21 | application/mp21 |
| mp4s | application/mp4 |
| doc | application/msword |
| dot | application/msword |
| mxf | application/mxf |
| bin | application/octet-stream |
| dms | application/octet-stream |
| lrf | application/octet-stream |
| mar | application/octet-stream |
| so | application/octet-stream |
| dist | application/octet-stream |
| distz | application/octet-stream |
| pkg | application/octet-stream |
| bpk | application/octet-stream |
| dump | application/octet-stream |
| elc | application/octet-stream |
| deploy | application/octet-stream |
| oda | application/oda |
| opf | application/oebps-package+xml |
| ogx | application/ogg |
| omdoc | application/omdoc+xml |
| onetoc | application/onenote |
| onetoc2 | application/onenote |
| onetmp | application/onenote |
| onepkg | application/onenote |
| oxps | application/oxps |
| xer | application/patch-ops-error+xml |
| application/pdf | |
| pgp | application/pgp-encrypted |
| asc | application/pgp-signature |
| sig | application/pgp-signature |
| prf | application/pics-rules |
| p10 | application/pkcs10 |
| p7m | application/pkcs7-mime |
| p7c | application/pkcs7-mime |
| p7s | application/pkcs7-signature |
| p8 | application/pkcs8 |
| ac | application/pkix-attr-cert |
| cer | application/pkix-cert |
| crl | application/pkix-crl |
| pkipath | application/pkix-pkipath |
| pki | application/pkixcmp |
| pls | application/pls+xml |
| ai | application/postscript |
| eps | application/postscript |
| ps | application/postscript |
| cww | application/prs.cww |
| pskcxml | application/pskc+xml |
| rdf | application/rdf+xml |
| rif | application/reginfo+xml |
| rnc | application/relax-ng-compact-syntax |
| rl | application/resource-lists+xml |
| rld | application/resource-lists-diff+xml |
| rs | application/rls-services+xml |
| gbr | application/rpki-ghostbusters |
| mft | application/rpki-manifest |
| roa | application/rpki-roa |
| rsd | application/rsd+xml |
| rss | application/rss+xml |
| rtf | application/rtf |
| sbml | application/sbml+xml |
| scq | application/scvp-cv-request |
| scs | application/scvp-cv-response |
| spq | application/scvp-vp-request |
| spp | application/scvp-vp-response |
| sdp | application/sdp |
| setpay | application/set-payment-initiation |
| setreg | application/set-registration-initiation |
| shf | application/shf+xml |
| smi | application/smil+xml |
| smil | application/smil+xml |
| rq | application/sparql-query |
| srx | application/sparql-results+xml |
| gram | application/srgs |
| grxml | application/srgs+xml |
| sru | application/sru+xml |
| ssdl | application/ssdl+xml |
| ssml | application/ssml+xml |
| tei | application/tei+xml |
| teicorpus | application/tei+xml |
| tfi | application/thraud+xml |
| tsd | application/timestamped-data |
| plb | application/vnd.3gpp.pic-bw-large |
| psb | application/vnd.3gpp.pic-bw-small |
| pvb | application/vnd.3gpp.pic-bw-var |
| tcap | application/vnd.3gpp2.tcap |
| pwn | application/vnd.3m.post-it-notes |
| aso | application/vnd.accpac.simply.aso |
| imp | application/vnd.accpac.simply.imp |
| acu | application/vnd.acucobol |
| atc | application/vnd.acucorp |
| acutc | application/vnd.acucorp |
| air | application/vnd.adobe.air-application-installer-package+zip |
| fcdt | application/vnd.adobe.formscentral.fcdt |
| fxp | application/vnd.adobe.fxp |
| fxpl | application/vnd.adobe.fxp |
| xdp | application/vnd.adobe.xdp+xml |
| xfdf | application/vnd.adobe.xfdf |
| ahead | application/vnd.ahead.space |
| azf | application/vnd.airzip.filesecure.azf |
| azs | application/vnd.airzip.filesecure.azs |
| azw | application/vnd.amazon.ebook |
| acc | application/vnd.americandynamics.acc |
| ami | application/vnd.amiga.ami |
| apk | application/vnd.android.package-archive |
| cii | application/vnd.anser-web-certificate-issue-initiation |
| fti | application/vnd.anser-web-funds-transfer-initiation |
| atx | application/vnd.antix.game-component |
| mpkg | application/vnd.apple.installer+xml |
| m3u8 | application/vnd.apple.mpegurl |
| swi | application/vnd.aristanetworks.swi |
| iota | application/vnd.astraea-software.iota |
| aep | application/vnd.audiograph |
| mpm | application/vnd.blueice.multipass |
| bmi | application/vnd.bmi |
| rep | application/vnd.businessobjects |
| cdxml | application/vnd.chemdraw+xml |
| mmd | application/vnd.chipnuts.karaoke-mmd |
| cdy | application/vnd.cinderella |
| cla | application/vnd.claymore |
| rp9 | application/vnd.cloanto.rp9 |
| c4g | application/vnd.clonk.c4group |
| c4d | application/vnd.clonk.c4group |
| c4f | application/vnd.clonk.c4group |
| c4p | application/vnd.clonk.c4group |
| c4u | application/vnd.clonk.c4group |
| c11amc | application/vnd.cluetrust.cartomobile-config |
| c11amz | application/vnd.cluetrust.cartomobile-config-pkg |
| csp | application/vnd.commonspace |
| cdbcmsg | application/vnd.contact.cmsg |
| cmc | application/vnd.cosmocaller |
| clkx | application/vnd.crick.clicker |
| clkk | application/vnd.crick.clicker.keyboard |
| clkp | application/vnd.crick.clicker.palette |
| clkt | application/vnd.crick.clicker.template |
| clkw | application/vnd.crick.clicker.wordbank |
| wbs | application/vnd.criticaltools.wbs+xml |
| pml | application/vnd.ctc-posml |
| ppd | application/vnd.cups-ppd |
| car | application/vnd.curl.car |
| pcurl | application/vnd.curl.pcurl |
| dart | application/vnd.dart |
| rdz | application/vnd.data-vision.rdz |
| uvf | application/vnd.dece.data |
| uvvf | application/vnd.dece.data |
| uvd | application/vnd.dece.data |
| uvvd | application/vnd.dece.data |
| uvt | application/vnd.dece.ttml+xml |
| uvvt | application/vnd.dece.ttml+xml |
| uvx | application/vnd.dece.unspecified |
| uvvx | application/vnd.dece.unspecified |
| uvz | application/vnd.dece.zip |
| uvvz | application/vnd.dece.zip |
| fe_launch | application/vnd.denovo.fcselayout-link |
| dna | application/vnd.dna |
| mlp | application/vnd.dolby.mlp |
| dpg | application/vnd.dpgraph |
| dfac | application/vnd.dreamfactory |
| kpxx | application/vnd.ds-keypoint |
| ait | application/vnd.dvb.ait |
| svc | application/vnd.dvb.service |
| geo | application/vnd.dynageo |
| mag | application/vnd.ecowin.chart |
| nml | application/vnd.enliven |
| esf | application/vnd.epson.esf |
| msf | application/vnd.epson.msf |
| qam | application/vnd.epson.quickanime |
| slt | application/vnd.epson.salt |
| ssf | application/vnd.epson.ssf |
| es3 | application/vnd.eszigno3+xml |
| et3 | application/vnd.eszigno3+xml |
| ez2 | application/vnd.ezpix-album |
| ez3 | application/vnd.ezpix-package |
| fdf | application/vnd.fdf |
| mseed | application/vnd.fdsn.mseed |
| seed | application/vnd.fdsn.seed |
| dataless | application/vnd.fdsn.seed |
| gph | application/vnd.flographit |
| ftc | application/vnd.fluxtime.clip |
| fm | application/vnd.framemaker |
| frame | application/vnd.framemaker |
| maker | application/vnd.framemaker |
| book | application/vnd.framemaker |
| fnc | application/vnd.frogans.fnc |
| ltf | application/vnd.frogans.ltf |
| fsc | application/vnd.fsc.weblaunch |
| oas | application/vnd.fujitsu.oasys |
| oa2 | application/vnd.fujitsu.oasys2 |
| oa3 | application/vnd.fujitsu.oasys3 |
| fg5 | application/vnd.fujitsu.oasysgp |
| bh2 | application/vnd.fujitsu.oasysprs |
| ddd | application/vnd.fujixerox.ddd |
| xdw | application/vnd.fujixerox.docuworks |
| xbd | application/vnd.fujixerox.docuworks.binder |
| fzs | application/vnd.fuzzysheet |
| txd | application/vnd.genomatix.tuxedo |
| ggb | application/vnd.geogebra.file |
| ggt | application/vnd.geogebra.tool |
| gex | application/vnd.geometry-explorer |
| gre | application/vnd.geometry-explorer |
| gxt | application/vnd.geonext |
| g2w | application/vnd.geoplan |
| g3w | application/vnd.geospace |
| gmx | application/vnd.gmx |
| kml | application/vnd.google-earth.kml+xml |
| kmz | application/vnd.google-earth.kmz |
| gqf | application/vnd.grafeq |
| gqs | application/vnd.grafeq |
| gac | application/vnd.groove-account |
| ghf | application/vnd.groove-help |
| gim | application/vnd.groove-identity-message |
| grv | application/vnd.groove-injector |
| gtm | application/vnd.groove-tool-message |
| tpl | application/vnd.groove-tool-template |
| vcg | application/vnd.groove-vcard |
| hal | application/vnd.hal+xml |
| zmm | application/vnd.handheld-entertainment+xml |
| hbci | application/vnd.hbci |
| les | application/vnd.hhe.lesson-player |
| hpgl | application/vnd.hp-hpgl |
| hpid | application/vnd.hp-hpid |
| hps | application/vnd.hp-hps |
| jlt | application/vnd.hp-jlyt |
| pcl | application/vnd.hp-pcl |
| pclxl | application/vnd.hp-pclxl |
| sfd-hdstx | application/vnd.hydrostatix.sof-data |
| mpy | application/vnd.ibm.minipay |
| afp | application/vnd.ibm.modcap |
| listafp | application/vnd.ibm.modcap |
| list3820 | application/vnd.ibm.modcap |
| irm | application/vnd.ibm.rights-management |
| sc | application/vnd.ibm.secure-container |
| icc | application/vnd.iccprofile |
| icm | application/vnd.iccprofile |
| igl | application/vnd.igloader |
| ivp | application/vnd.immervision-ivp |
| ivu | application/vnd.immervision-ivu |
| igm | application/vnd.insors.igm |
| xpw | application/vnd.intercon.formnet |
| xpx | application/vnd.intercon.formnet |
| i2g | application/vnd.intergeo |
| qbo | application/vnd.intu.qbo |
| qfx | application/vnd.intu.qfx |
| rcprofile | application/vnd.ipunplugged.rcprofile |
| irp | application/vnd.irepository.package+xml |
| xpr | application/vnd.is-xpr |
| fcs | application/vnd.isac.fcs |
| jam | application/vnd.jam |
| rms | application/vnd.jcp.javame.midlet-rms |
| jisp | application/vnd.jisp |
| joda | application/vnd.joost.joda-archive |
| ktz | application/vnd.kahootz |
| ktr | application/vnd.kahootz |
| karbon | application/vnd.kde.karbon |
| chrt | application/vnd.kde.kchart |
| kfo | application/vnd.kde.kformula |
| flw | application/vnd.kde.kivio |
| kon | application/vnd.kde.kontour |
| kpr | application/vnd.kde.kpresenter |
| kpt | application/vnd.kde.kpresenter |
| ksp | application/vnd.kde.kspread |
| kwd | application/vnd.kde.kword |
| kwt | application/vnd.kde.kword |
| htke | application/vnd.kenameaapp |
| kia | application/vnd.kidspiration |
| kne | application/vnd.kinar |
| knp | application/vnd.kinar |
| skp | application/vnd.koan |
| skd | application/vnd.koan |
| skt | application/vnd.koan |
| skm | application/vnd.koan |
| sse | application/vnd.kodak-descriptor |
| lasxml | application/vnd.las.las+xml |
| lbd | application/vnd.llamagraphics.life-balance.desktop |
| lbe | application/vnd.llamagraphics.life-balance.exchange+xml |
| 123 | application/vnd.lotus-1-2-3 |
| apr | application/vnd.lotus-approach |
| pre | application/vnd.lotus-freelance |
| nsf | application/vnd.lotus-notes |
| org | application/vnd.lotus-organizer |
| scm | application/vnd.lotus-screencam |
| lwp | application/vnd.lotus-wordpro |
| portpkg | application/vnd.macports.portpkg |
| mcd | application/vnd.mcd |
| mc1 | application/vnd.medcalcdata |
| cdkey | application/vnd.mediastation.cdkey |
| mwf | application/vnd.mfer |
| mfm | application/vnd.mfmp |
| flo | application/vnd.micrografx.flo |
| igx | application/vnd.micrografx.igx |
| mif | application/vnd.mif |
| daf | application/vnd.mobius.daf |
| dis | application/vnd.mobius.dis |
| mbk | application/vnd.mobius.mbk |
| mqy | application/vnd.mobius.mqy |
| msl | application/vnd.mobius.msl |
| plc | application/vnd.mobius.plc |
| txf | application/vnd.mobius.txf |
| mpn | application/vnd.mophun.application |
| mpc | application/vnd.mophun.certificate |
| xul | application/vnd.mozilla.xul+xml |
| cil | application/vnd.ms-artgalry |
| cab | application/vnd.ms-cab-compressed |
| xls | application/vnd.ms-excel |
| xlm | application/vnd.ms-excel |
| xla | application/vnd.ms-excel |
| xlc | application/vnd.ms-excel |
| xlt | application/vnd.ms-excel |
| xlw | application/vnd.ms-excel |
| xlam | application/vnd.ms-excel.addin.macroenabled.12 |
| xlsb | application/vnd.ms-excel.sheet.binary.macroenabled.12 |
| xlsm | application/vnd.ms-excel.sheet.macroenabled.12 |
| xltm | application/vnd.ms-excel.template.macroenabled.12 |
| eot | application/vnd.ms-fontobject |
| chm | application/vnd.ms-htmlhelp |
| ims | application/vnd.ms-ims |
| lrm | application/vnd.ms-lrm |
| thmx | application/vnd.ms-officetheme |
| cat | application/vnd.ms-pki.seccat |
| stl | application/vnd.ms-pki.stl |
| ppt | application/vnd.ms-powerpoint |
| pps | application/vnd.ms-powerpoint |
| pot | application/vnd.ms-powerpoint |
| ppam | application/vnd.ms-powerpoint.addin.macroenabled.12 |
| pptm | application/vnd.ms-powerpoint.presentation.macroenabled.12 |
| sldm | application/vnd.ms-powerpoint.slide.macroenabled.12 |
| ppsm | application/vnd.ms-powerpoint.slideshow.macroenabled.12 |
| potm | application/vnd.ms-powerpoint.template.macroenabled.12 |
| mpp | application/vnd.ms-project |
| mpt | application/vnd.ms-project |
| docm | application/vnd.ms-word.document.macroenabled.12 |
| dotm | application/vnd.ms-word.template.macroenabled.12 |
| wps | application/vnd.ms-works |
| wks | application/vnd.ms-works |
| wcm | application/vnd.ms-works |
| wdb | application/vnd.ms-works |
| wpl | application/vnd.ms-wpl |
| xps | application/vnd.ms-xpsdocument |
| mseq | application/vnd.mseq |
| mus | application/vnd.musician |
| msty | application/vnd.muvee.style |
| taglet | application/vnd.mynfc |
| nlu | application/vnd.neurolanguage.nlu |
| ntf | application/vnd.nitf |
| nitf | application/vnd.nitf |
| nnd | application/vnd.noblenet-directory |
| nns | application/vnd.noblenet-sealer |
| nnw | application/vnd.noblenet-web |
| ngdat | application/vnd.nokia.n-gage.data |
| n-gage | application/vnd.nokia.n-gage.symbian.install |
| rpst | application/vnd.nokia.radio-preset |
| rpss | application/vnd.nokia.radio-presets |
| edm | application/vnd.novadigm.edm |
| edx | application/vnd.novadigm.edx |
| ext | application/vnd.novadigm.ext |
| odc | application/vnd.oasis.opendocument.chart |
| otc | application/vnd.oasis.opendocument.chart-template |
| odb | application/vnd.oasis.opendocument.database |
| odf | application/vnd.oasis.opendocument.formula |
| odft | application/vnd.oasis.opendocument.formula-template |
| odg | application/vnd.oasis.opendocument.graphics |
| otg | application/vnd.oasis.opendocument.graphics-template |
| odi | application/vnd.oasis.opendocument.image |
| oti | application/vnd.oasis.opendocument.image-template |
| odp | application/vnd.oasis.opendocument.presentation |
| otp | application/vnd.oasis.opendocument.presentation-template |
| ods | application/vnd.oasis.opendocument.spreadsheet |
| ots | application/vnd.oasis.opendocument.spreadsheet-template |
| odt | application/vnd.oasis.opendocument.text |
| odm | application/vnd.oasis.opendocument.text-master |
| ott | application/vnd.oasis.opendocument.text-template |
| oth | application/vnd.oasis.opendocument.text-web |
| xo | application/vnd.olpc-sugar |
| dd2 | application/vnd.oma.dd2+xml |
| oxt | application/vnd.openofficeorg.extension |
| pptx | application/vnd.openxmlformats-officedocument.presentationml.presentation |
| sldx | application/vnd.openxmlformats-officedocument.presentationml.slide |
| ppsx | application/vnd.openxmlformats-officedocument.presentationml.slideshow |
| potx | application/vnd.openxmlformats-officedocument.presentationml.template |
| xlsx | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |
| xltx | application/vnd.openxmlformats-officedocument.spreadsheetml.template |
| docx | application/vnd.openxmlformats-officedocument.wordprocessingml.document |
| dotx | application/vnd.openxmlformats-officedocument.wordprocessingml.template |
| mgp | application/vnd.osgeo.mapguide.package |
| dp | application/vnd.osgi.dp |
| esa | application/vnd.osgi.subsystem |
| pdb | application/vnd.palm |
| pqa | application/vnd.palm |
| oprc | application/vnd.palm |
| paw | application/vnd.pawaafile |
| str | application/vnd.pg.format |
| ei6 | application/vnd.pg.osasli |
| efif | application/vnd.picsel |
| wg | application/vnd.pmi.widget |
| plf | application/vnd.pocketlearn |
| pbd | application/vnd.powerbuilder6 |
| box | application/vnd.previewsystems.box |
| mgz | application/vnd.proteus.magazine |
| qps | application/vnd.publishare-delta-tree |
| ptid | application/vnd.pvi.ptid1 |
| qxd | application/vnd.quark.quarkxpress |
| qxt | application/vnd.quark.quarkxpress |
| qwd | application/vnd.quark.quarkxpress |
| qwt | application/vnd.quark.quarkxpress |
| qxl | application/vnd.quark.quarkxpress |
| qxb | application/vnd.quark.quarkxpress |
| bed | application/vnd.realvnc.bed |
| mxl | application/vnd.recordare.musicxml |
| musicxml | application/vnd.recordare.musicxml+xml |
| cryptonote | application/vnd.rig.cryptonote |
| cod | application/vnd.rim.cod |
| rm | application/vnd.rn-realmedia |
| rmvb | application/vnd.rn-realmedia-vbr |
| link66 | application/vnd.route66.link66+xml |
| st | application/vnd.sailingtracker.track |
| see | application/vnd.seemail |
| sema | application/vnd.sema |
| semd | application/vnd.semd |
| semf | application/vnd.semf |
| ifm | application/vnd.shana.informed.formdata |
| itp | application/vnd.shana.informed.formtemplate |
| iif | application/vnd.shana.informed.interchange |
| ipk | application/vnd.shana.informed.package |
| twd | application/vnd.simtech-mindmapper |
| twds | application/vnd.simtech-mindmapper |
| mmf | application/vnd.smaf |
| teacher | application/vnd.smart.teacher |
| sdkm | application/vnd.solent.sdkm+xml |
| sdkd | application/vnd.solent.sdkm+xml |
| dxp | application/vnd.spotfire.dxp |
| sfs | application/vnd.spotfire.sfs |
| sdc | application/vnd.stardivision.calc |
| sda | application/vnd.stardivision.draw |
| sdd | application/vnd.stardivision.impress |
| smf | application/vnd.stardivision.math |
| sdw | application/vnd.stardivision.writer |
| vor | application/vnd.stardivision.writer |
| sgl | application/vnd.stardivision.writer-global |
| smzip | application/vnd.stepmania.package |
| sm | application/vnd.stepmania.stepchart |
| sxc | application/vnd.sun.xml.calc |
| stc | application/vnd.sun.xml.calc.template |
| sxd | application/vnd.sun.xml.draw |
| std | application/vnd.sun.xml.draw.template |
| sxi | application/vnd.sun.xml.impress |
| sti | application/vnd.sun.xml.impress.template |
| sxm | application/vnd.sun.xml.math |
| sxw | application/vnd.sun.xml.writer |
| sxg | application/vnd.sun.xml.writer.global |
| stw | application/vnd.sun.xml.writer.template |
| sus | application/vnd.sus-calendar |
| susp | application/vnd.sus-calendar |
| svd | application/vnd.svd |
| sis | application/vnd.symbian.install |
| sisx | application/vnd.symbian.install |
| xsm | application/vnd.syncml+xml |
| bdm | application/vnd.syncml.dm+wbxml |
| xdm | application/vnd.syncml.dm+xml |
| tao | application/vnd.tao.intent-module-archive |
| pcap | application/vnd.tcpdump.pcap |
| cap | application/vnd.tcpdump.pcap |
| dmp | application/vnd.tcpdump.pcap |
| tmo | application/vnd.tmobile-livetv |
| tpt | application/vnd.trid.tpt |
| mxs | application/vnd.triscape.mxs |
| tra | application/vnd.trueapp |
| ufd | application/vnd.ufdl |
| ufdl | application/vnd.ufdl |
| utz | application/vnd.uiq.theme |
| umj | application/vnd.umajin |
| unityweb | application/vnd.unity |
| uoml | application/vnd.uoml+xml |
| vcx | application/vnd.vcx |
| vsd | application/vnd.visio |
| vst | application/vnd.visio |
| vss | application/vnd.visio |
| vsw | application/vnd.visio |
| vis | application/vnd.visionary |
| vsf | application/vnd.vsf |
| wbxml | application/vnd.wap.wbxml |
| wmlc | application/vnd.wap.wmlc |
| wmlsc | application/vnd.wap.wmlscriptc |
| wtb | application/vnd.webturbo |
| nbp | application/vnd.wolfram.player |
| wpd | application/vnd.wordperfect |
| wqd | application/vnd.wqd |
| stf | application/vnd.wt.stf |
| xar | application/vnd.xara |
| xfdl | application/vnd.xfdl |
| hvd | application/vnd.yamaha.hv-dic |
| hvs | application/vnd.yamaha.hv-script |
| hvp | application/vnd.yamaha.hv-voice |
| osf | application/vnd.yamaha.openscoreformat |
| osfpvg | application/vnd.yamaha.openscoreformat.osfpvg+xml |
| saf | application/vnd.yamaha.smaf-audio |
| spf | application/vnd.yamaha.smaf-phrase |
| cmp | application/vnd.yellowriver-custom-menu |
| zir | application/vnd.zul |
| zirz | application/vnd.zul |
| zaz | application/vnd.zzazz.deck+xml |
| vxml | application/voicexml+xml |
| wgt | application/widget |
| hlp | application/winhlp |
| wsdl | application/wsdl+xml |
| wspolicy | application/wspolicy+xml |
| 7z | application/x-7z-compressed |
| abw | application/x-abiword |
| ace | application/x-ace-compressed |
| dmg | application/x-apple-diskimage |
| aab | application/x-authorware-bin |
| x32 | application/x-authorware-bin |
| u32 | application/x-authorware-bin |
| vox | application/x-authorware-bin |
| aam | application/x-authorware-map |
| aas | application/x-authorware-seg |
| bcpio | application/x-bcpio |
| torrent | application/x-bittorrent |
| blb | application/x-blorb |
| blorb | application/x-blorb |
| bz | application/x-bzip |
| bz2 | application/x-bzip2 |
| boz | application/x-bzip2 |
| cbr | application/x-cbr |
| cba | application/x-cbr |
| cbt | application/x-cbr |
| cbz | application/x-cbr |
| cb7 | application/x-cbr |
| vcd | application/x-cdlink |
| cfs | application/x-cfs-compressed |
| chat | application/x-chat |
| pgn | application/x-chess-pgn |
| nsc | application/x-conference |
| cpio | application/x-cpio |
| csh | application/x-csh |
| deb | application/x-debian-package |
| udeb | application/x-debian-package |
| dgc | application/x-dgc-compressed |
| dir | application/x-director |
| dcr | application/x-director |
| dxr | application/x-director |
| cst | application/x-director |
| cct | application/x-director |
| cxt | application/x-director |
| w3d | application/x-director |
| fgd | application/x-director |
| swa | application/x-director |
| wad | application/x-doom |
| ncx | application/x-dtbncx+xml |
| dtb | application/x-dtbook+xml |
| res | application/x-dtbresource+xml |
| dvi | application/x-dvi |
| evy | application/x-envoy |
| eva | application/x-eva |
| bdf | application/x-font-bdf |
| gsf | application/x-font-ghostscript |
| psf | application/x-font-linux-psf |
| otf | application/x-font-otf |
| pcf | application/x-font-pcf |
| snf | application/x-font-snf |
| ttf | application/x-font-ttf |
| ttc | application/x-font-ttf |
| pfa | application/x-font-type1 |
| pfb | application/x-font-type1 |
| pfm | application/x-font-type1 |
| afm | application/x-font-type1 |
| arc | application/x-freearc |
| spl | application/x-futuresplash |
| gca | application/x-gca-compressed |
| ulx | application/x-glulx |
| gnumeric | application/x-gnumeric |
| gramps | application/x-gramps-xml |
| gtar | application/x-gtar |
| hdf | application/x-hdf |
| install | application/x-install-instructions |
| iso | application/x-iso9660-image |
| jnlp | application/x-java-jnlp-file |
| latex | application/x-latex |
| lzh | application/x-lzh-compressed |
| lha | application/x-lzh-compressed |
| mie | application/x-mie |
| prc | application/x-mobipocket-ebook |
| mobi | application/x-mobipocket-ebook |
| application | application/x-ms-application |
| lnk | application/x-ms-shortcut |
| wmd | application/x-ms-wmd |
| wmz | application/x-ms-wmz |
| xbap | application/x-ms-xbap |
| mdb | application/x-msaccess |
| obd | application/x-msbinder |
| crd | application/x-mscardfile |
| clp | application/x-msclip |
| exe | application/x-msdownload |
| dll | application/x-msdownload |
| com | application/x-msdownload |
| bat | application/x-msdownload |
| msi | application/x-msdownload |
| mvb | application/x-msmediaview |
| m13 | application/x-msmediaview |
| m14 | application/x-msmediaview |
| wmf | application/x-msmetafile |
| emf | application/x-msmetafile |
| emz | application/x-msmetafile |
| mny | application/x-msmoney |
| pub | application/x-mspublisher |
| scd | application/x-msschedule |
| trm | application/x-msterminal |
| wri | application/x-mswrite |
| nc | application/x-netcdf |
| cdf | application/x-netcdf |
| nzb | application/x-nzb |
| p12 | application/x-pkcs12 |
| pfx | application/x-pkcs12 |
| p7b | application/x-pkcs7-certificates |
| spc | application/x-pkcs7-certificates |
| p7r | application/x-pkcs7-certreqresp |
| rar | application/x-rar-compressed |
| ris | application/x-research-info-systems |
| sh | application/x-sh |
| shar | application/x-shar |
| swf | application/x-shockwave-flash |
| xap | application/x-silverlight-app |
| sql | application/x-sql |
| sit | application/x-stuffit |
| sitx | application/x-stuffitx |
| srt | application/x-subrip |
| sv4cpio | application/x-sv4cpio |
| sv4crc | application/x-sv4crc |
| t3 | application/x-t3vm-image |
| gam | application/x-tads |
| tar | application/x-tar |
| tcl | application/x-tcl |
| tex | application/x-tex |
| tfm | application/x-tex-tfm |
| texinfo | application/x-texinfo |
| texi | application/x-texinfo |
| obj | application/x-tgif |
| ustar | application/x-ustar |
| src | application/x-wais-source |
| der | application/x-x509-ca-cert |
| crt | application/x-x509-ca-cert |
| fig | application/x-xfig |
| xlf | application/x-xliff+xml |
| xpi | application/x-xpinstall |
| xz | application/x-xz |
| z1 | application/x-zmachine |
| z2 | application/x-zmachine |
| z3 | application/x-zmachine |
| z4 | application/x-zmachine |
| z5 | application/x-zmachine |
| z6 | application/x-zmachine |
| z7 | application/x-zmachine |
| z8 | application/x-zmachine |
| xaml | application/xaml+xml |
| xdf | application/xcap-diff+xml |
| xenc | application/xenc+xml |
| xhtml | application/xhtml+xml |
| xht | application/xhtml+xml |
| xml | application/xml |
| xsl | application/xml |
| dtd | application/xml-dtd |
| xop | application/xop+xml |
| xpl | application/xproc+xml |
| xslt | application/xslt+xml |
| xspf | application/xspf+xml |
| mxml | application/xv+xml |
| xhvml | application/xv+xml |
| xvml | application/xv+xml |
| xvm | application/xv+xml |
| yang | application/yang |
| yin | application/yin+xml |
| zip | application/zip |
| adp | audio/adpcm |
| au | audio/basic |
| snd | audio/basic |
| mid | audio/midi |
| midi | audio/midi |
| kar | audio/midi |
| rmi | audio/midi |
| m4a | audio/mp4 |
| mp4a | audio/mp4 |
| mpga | audio/mpeg |
| mp2 | audio/mpeg |
| mp2a | audio/mpeg |
| mp3 | audio/mpeg |
| m2a | audio/mpeg |
| m3a | audio/mpeg |
| oga | audio/ogg |
| ogg | audio/ogg |
| spx | audio/ogg |
| s3m | audio/s3m |
| sil | audio/silk |
| uva | audio/vnd.dece.audio |
| uvva | audio/vnd.dece.audio |
| eol | audio/vnd.digital-winds |
| dra | audio/vnd.dra |
| dts | audio/vnd.dts |
| dtshd | audio/vnd.dts.hd |
| lvp | audio/vnd.lucent.voice |
| pya | audio/vnd.ms-playready.media.pya |
| ecelp4800 | audio/vnd.nuera.ecelp4800 |
| ecelp7470 | audio/vnd.nuera.ecelp7470 |
| ecelp9600 | audio/vnd.nuera.ecelp9600 |
| rip | audio/vnd.rip |
| weba | audio/webm |
| aac | audio/x-aac |
| aif | audio/x-aiff |
| aiff | audio/x-aiff |
| aifc | audio/x-aiff |
| caf | audio/x-caf |
| flac | audio/x-flac |
| mka | audio/x-matroska |
| m3u | audio/x-mpegurl |
| wax | audio/x-ms-wax |
| wma | audio/x-ms-wma |
| ram | audio/x-pn-realaudio |
| ra | audio/x-pn-realaudio |
| rmp | audio/x-pn-realaudio-plugin |
| wav | audio/x-wav |
| xm | audio/xm |
| cdx | chemical/x-cdx |
| cif | chemical/x-cif |
| cmdf | chemical/x-cmdf |
| cml | chemical/x-cml |
| csml | chemical/x-csml |
| xyz | chemical/x-xyz |
| bmp | image/bmp |
| cgm | image/cgm |
| g3 | image/g3fax |
| gif | image/gif |
| ief | image/ief |
| jpeg | image/jpeg |
| jpg | image/jpeg |
| jpe | image/jpeg |
| ktx | image/ktx |
| png | image/png |
| btif | image/prs.btif |
| sgi | image/sgi |
| svg | image/svg+xml |
| svgz | image/svg+xml |
| tiff | image/tiff |
| tif | image/tiff |
| psd | image/vnd.adobe.photoshop |
| uvi | image/vnd.dece.graphic |
| uvvi | image/vnd.dece.graphic |
| uvg | image/vnd.dece.graphic |
| uvvg | image/vnd.dece.graphic |
| djvu | image/vnd.djvu |
| djv | image/vnd.djvu |
| sub | image/vnd.dvb.subtitle |
| dwg | image/vnd.dwg |
| dxf | image/vnd.dxf |
| fbs | image/vnd.fastbidsheet |
| fpx | image/vnd.fpx |
| fst | image/vnd.fst |
| mmr | image/vnd.fujixerox.edmics-mmr |
| rlc | image/vnd.fujixerox.edmics-rlc |
| mdi | image/vnd.ms-modi |
| wdp | image/vnd.ms-photo |
| npx | image/vnd.net-fpx |
| wbmp | image/vnd.wap.wbmp |
| xif | image/vnd.xiff |
| webp | image/webp |
| 3ds | image/x-3ds |
| ras | image/x-cmu-raster |
| cmx | image/x-cmx |
| fh | image/x-freehand |
| fhc | image/x-freehand |
| fh4 | image/x-freehand |
| fh5 | image/x-freehand |
| fh7 | image/x-freehand |
| ico | image/x-icon |
| sid | image/x-mrsid-image |
| pcx | image/x-pcx |
| pic | image/x-pict |
| pct | image/x-pict |
| pnm | image/x-portable-anymap |
| pbm | image/x-portable-bitmap |
| pgm | image/x-portable-graymap |
| ppm | image/x-portable-pixmap |
| rgb | image/x-rgb |
| tga | image/x-tga |
| xbm | image/x-xbitmap |
| xpm | image/x-xpixmap |
| xwd | image/x-xwindowdump |
| eml | message/rfc822 |
| mime | message/rfc822 |
| igs | model/iges |
| iges | model/iges |
| msh | model/mesh |
| mesh | model/mesh |
| silo | model/mesh |
| dae | model/vnd.collada+xml |
| dwf | model/vnd.dwf |
| gdl | model/vnd.gdl |
| gtw | model/vnd.gtw |
| mts | model/vnd.mts |
| vtu | model/vnd.vtu |
| wrl | model/vrml |
| vrml | model/vrml |
| x3db | model/x3d+binary |
| x3dbz | model/x3d+binary |
| x3dv | model/x3d+vrml |
| x3dvz | model/x3d+vrml |
| x3d | model/x3d+xml |
| x3dz | model/x3d+xml |
| appcache | text/cache-manifest |
| ics | text/calendar |
| ifb | text/calendar |
| css | text/css |
| csv | text/csv |
| html | text/html |
| htm | text/html |
| n3 | text/n3 |
| txt | text/plain |
| text | text/plain |
| conf | text/plain |
| def | text/plain |
| list | text/plain |
| log | text/plain |
| in | text/plain |
| dsc | text/prs.lines.tag |
| rtx | text/richtext |
| sgml | text/sgml |
| sgm | text/sgml |
| tsv | text/tab-separated-values |
| t | text/troff |
| tr | text/troff |
| roff | text/troff |
| man | text/troff |
| me | text/troff |
| ms | text/troff |
| ttl | text/turtle |
| uri | text/uri-list |
| uris | text/uri-list |
| urls | text/uri-list |
| vcard | text/vcard |
| curl | text/vnd.curl |
| dcurl | text/vnd.curl.dcurl |
| mcurl | text/vnd.curl.mcurl |
| scurl | text/vnd.curl.scurl |
| fly | text/vnd.fly |
| flx | text/vnd.fmi.flexstor |
| gv | text/vnd.graphviz |
| 3dml | text/vnd.in3d.3dml |
| spot | text/vnd.in3d.spot |
| jad | text/vnd.sun.j2me.app-descriptor |
| wml | text/vnd.wap.wml |
| wmls | text/vnd.wap.wmlscript |
| s | text/x-asm |
| asm | text/x-asm |
| c | text/x-c |
| cc | text/x-c |
| cxx | text/x-c |
| cpp | text/x-c |
| h | text/x-c |
| hh | text/x-c |
| dic | text/x-c |
| f | text/x-fortran |
| for | text/x-fortran |
| f77 | text/x-fortran |
| f90 | text/x-fortran |
| java | text/x-java-source |
| nfo | text/x-nfo |
| opml | text/x-opml |
| p | text/x-pascal |
| pas | text/x-pascal |
| etx | text/x-setext |
| sfv | text/x-sfv |
| uu | text/x-uuencode |
| vcs | text/x-vcalendar |
| vcf | text/x-vcard |
| 3gp | video/3gpp |
| 3g2 | video/3gpp2 |
| h261 | video/h261 |
| h263 | video/h263 |
| h264 | video/h264 |
| jpgv | video/jpeg |
| jpm | video/jpm |
| jpgm | video/jpm |
| mj2 | video/mj2 |
| mjp2 | video/mj2 |
| mp4 | video/mp4 |
| mp4v | video/mp4 |
| mpg4 | video/mp4 |
| mpeg | video/mpeg |
| mpg | video/mpeg |
| mpe | video/mpeg |
| m1v | video/mpeg |
| m2v | video/mpeg |
| ogv | video/ogg |
| qt | video/quicktime |
| mov | video/quicktime |
| uvh | video/vnd.dece.hd |
| uvvh | video/vnd.dece.hd |
| uvm | video/vnd.dece.mobile |
| uvvm | video/vnd.dece.mobile |
| uvp | video/vnd.dece.pd |
| uvvp | video/vnd.dece.pd |
| uvs | video/vnd.dece.sd |
| uvvs | video/vnd.dece.sd |
| uvv | video/vnd.dece.video |
| uvvv | video/vnd.dece.video |
| dvb | video/vnd.dvb.file |
| fvt | video/vnd.fvt |
| mxu | video/vnd.mpegurl |
| m4u | video/vnd.mpegurl |
| pyv | video/vnd.ms-playready.media.pyv |
| uvu | video/vnd.uvvu.mp4 |
| uvvu | video/vnd.uvvu.mp4 |
| viv | video/vnd.vivo |
| webm | video/webm |
| f4v | video/x-f4v |
| fli | video/x-fli |
| flv | video/x-flv |
| m4v | video/x-m4v |
| mkv | video/x-matroska |
| mk3d | video/x-matroska |
| mks | video/x-matroska |
| mng | video/x-mng |
| asf | video/x-ms-asf |
| asx | video/x-ms-asf |
| vob | video/x-ms-vob |
| wm | video/x-ms-wm |
| wmv | video/x-ms-wmv |
| wmx | video/x-ms-wmx |
| wvx | video/x-ms-wvx |
| avi | video/x-msvideo |
| movie | video/x-sgi-movie |
| smv | video/x-smv |
| ice | x-conference/x-cooltalk |
如何获取文件的Content-Type
1、使用spring-web包下MediaTypeFactory
MediaTypeFactory是spring-web包下的工具类，需要在pom引用spring-web包，本例使用的是：
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version> 2.2.4.RELEASE</version>
</dependency>
从源码中可以看到MediaTypeFactory一共提供了三个对外方法，支持通过传入文件名或者Resource对象来获取Content-Type：
public static Optional<MediaType> getMediaType(@Nullable Resource resource) {
return Optional.ofNullable(resource).map(Resource::getFilename).flatMap(MediaTypeFactory::getMediaType);
}
public static Optional<MediaType> getMediaType(@Nullable String filename) {
return getMediaTypes(filename).stream().findFirst();
}
public static List<MediaType> getMediaTypes(@Nullable String filename) {
Optional var10000 = Optional.ofNullable(StringUtils.getFilenameExtension(filename)).map((s) -> {
return s.toLowerCase(Locale.ENGLISH);
});
MultiValueMap var10001 = fileExtensionToMediaTypes;
var10001.getClass();
return (List)var10000.map(var10001::get).orElse(Collections.emptyList());
}
我们用传入文件名的方式测试一下：
public static void main(String[] args) {
MediaType mediaType = MediaTypeFactory.getMediaType("测试.pdf").get();
String mediaTypeString = mediaType.toString();
System.out.println(mediaTypeString);
}
输出结果：
application/pdf
2、使用Apache Tika
Apache Tika 是一个内容分析工具包，可以检测上千种文件类型，并提取它们的元数据和文本。tika在设计上十分精巧，单一的接口使它易于使用，在搜索引擎索引，内容分析，翻译等诸多方面得到了广泛使用。
使用Apache Tika首先需要在pom引用：
<dependency>
<groupId>org.apache.tika</groupId>
<artifactId>tika-core</artifactId>
<version>1.28.4</version>
</dependency>
获取Content-Type 主要是用到其中detect的通过源码我们可以得知（源码太长了就不放了）detect支持通过传入String（文件名）、URL、File、Path、byte[]、InputStream等类型来解析以获取Content-Type
我们用传入byte[]的方式测试一下：
public static void main(String[] args) {
File file = new File("D:\\书籍\\电子书\\其它\\自然哲学的数学原理.pdf");
byte[] fileContent = new byte[(int) file.length()];
try (FileInputStream inputStream = new FileInputStream(file)) {
inputStream.read(fileContent);
} catch (IOException e) {
e.printStackTrace();
}
Tika tika = new Tika();
String mediaTypeString = tika.detect(fileContent);
System.out.println(mediaTypeString);
}
输出结果：
application/pdf
注意tika.detect返回的是String类型，如果想像第一种方式一样得到MediaType对象，还需要转换一下。
MediaType.parseMediaType(mediaTypeString);
