http中常用文件对应content-type
BaseContentType = { ".load": "text/html", ".123": "application/vnd.lotus-1-2-3", ".3ds": "image/x-3ds", ".3g2": "video/3gpp", ".3ga": "video/3gpp", ".3gp": "video/3gpp", ".3gpp": "video/3gpp", ".602": "application/x-t602", ".669": "audio/x-mod", ".7z": "application/x-7z-compressed", ".a": "application/x-archive", ".aac": "audio/mp4", ".abw": "application/x-abiword", ".abw.crashed": "application/x-abiword", ".abw.gz": "application/x-abiword", ".ac3": "audio/ac3", ".ace": "application/x-ace", ".adb": "text/x-adasrc", ".ads": "text/x-adasrc", ".afm": "application/x-font-afm", ".ag": "image/x-applix-graphics", ".ai": "application/illustrator", ".aif": "audio/x-aiff", ".aifc": "audio/x-aiff", ".aiff": "audio/x-aiff", ".al": "application/x-perl", ".alz": "application/x-alz", ".amr": "audio/amr", ".ani": "application/x-navi-animation", ".anim[1-9j]": "video/x-anim", ".anx": "application/annodex", ".ape": "audio/x-ape", ".arj": "application/x-arj", ".arw": "image/x-sony-arw", ".as": "application/x-applix-spreadsheet", ".asc": "text/plain", ".asf": "video/x-ms-asf", ".asp": "application/x-asp", ".ass": "text/x-ssa", ".asx": "audio/x-ms-asx", ".atom": "application/atom+xml", ".au": "audio/basic", ".avi": "video/x-msvideo", ".aw": "application/x-applix-word", ".awb": "audio/amr-wb", ".awk": "application/x-awk", ".axa": "audio/annodex", ".axv": "video/annodex", ".bak": "application/x-trash", ".bcpio": "application/x-bcpio", ".bdf": "application/x-font-bdf", ".bib": "text/x-bibtex", ".bin": "application/octet-stream", ".blend": "application/x-blender", ".blender": "application/x-blender", ".bmp": "image/bmp", ".bz": "application/x-bzip", ".bz2": "application/x-bzip", ".c": "text/x-csrc", ".c++": "text/x-c++src", ".cab": "application/vnd.ms-cab-compressed", ".cb7": "application/x-cb7", ".cbr": "application/x-cbr", ".cbt": "application/x-cbt", ".cbz": "application/x-cbz", ".cc": "text/x-c++src", ".cdf": "application/x-netcdf", ".cdr": "application/vnd.corel-draw", ".cer": "application/x-x509-ca-cert", ".cert": "application/x-x509-ca-cert", ".cgm": "image/cgm", ".chm": "application/x-chm", ".chrt": "application/x-kchart", ".class": "application/x-java", ".cls": "text/x-tex", ".cmake": "text/x-cmake", ".cpio": "application/x-cpio", ".cpio.gz": "application/x-cpio-compressed", ".cpp": "text/x-c++src", ".cr2": "image/x-canon-cr2", ".crt": "application/x-x509-ca-cert", ".crw": "image/x-canon-crw", ".cs": "text/x-csharp", ".csh": "application/x-csh", ".css": "text/css", ".cssl": "text/css", ".csv": "text/csv", ".cue": "application/x-cue", ".cur": "image/x-win-bitmap", ".cxx": "text/x-c++src", ".d": "text/x-dsrc", ".dar": "application/x-dar", ".dbf": "application/x-dbf", ".dc": "application/x-dc-rom", ".dcl": "text/x-dcl", ".dcm": "application/dicom", ".dcr": "image/x-kodak-dcr", ".dds": "image/x-dds", ".deb": "application/x-deb", ".der": "application/x-x509-ca-cert", ".desktop": "application/x-desktop", ".dia": "application/x-dia-diagram", ".diff": "text/x-patch", ".divx": "video/x-msvideo", ".djv": "image/vnd.djvu", ".djvu": "image/vnd.djvu", ".dng": "image/x-adobe-dng", ".doc": "application/msword", ".docbook": "application/docbook+xml", ".docm": "application/vnd.openxmlformats-officedocument.wordprocessingml.document", ".docx": "application/vnd.openxmlformats-officedocument.wordprocessingml.document", ".dot": "text/vnd.graphviz", ".dsl": "text/x-dsl", ".dtd": "application/xml-dtd", ".dtx": "text/x-tex", ".dv": "video/dv", ".dvi": "application/x-dvi", ".dvi.bz2": "application/x-bzdvi", ".dvi.gz": "application/x-gzdvi", ".dwg": "image/vnd.dwg", ".dxf": "image/vnd.dxf", ".e": "text/x-eiffel", ".egon": "application/x-egon", ".eif": "text/x-eiffel", ".el": "text/x-emacs-lisp", ".emf": "image/x-emf", ".emp": "application/vnd.emusic-emusic_package", ".ent": "application/xml-external-parsed-entity", ".eps": "image/x-eps", ".eps.bz2": "image/x-bzeps", ".eps.gz": "image/x-gzeps", ".epsf": "image/x-eps", ".epsf.bz2": "image/x-bzeps", ".epsf.gz": "image/x-gzeps", ".epsi": "image/x-eps", ".epsi.bz2": "image/x-bzeps", ".epsi.gz": "image/x-gzeps", ".epub": "application/epub+zip", ".erl": "text/x-erlang", ".es": "application/ecmascript", ".etheme": "application/x-e-theme", ".etx": "text/x-setext", ".exe": "application/x-ms-dos-executable", ".exr": "image/x-exr", ".ez": "application/andrew-inset", ".f": "text/x-fortran", ".f90": "text/x-fortran", ".f95": "text/x-fortran", ".fb2": "application/x-fictionbook+xml", ".fig": "image/x-xfig", ".fits": "image/fits", ".fl": "application/x-fluid", ".flac": "audio/x-flac", ".flc": "video/x-flic", ".fli": "video/x-flic", ".flv": "video/x-flv", ".flw": "application/x-kivio", ".fo": "text/x-xslfo", ".for": "text/x-fortran", ".g3": "image/fax-g3", ".gb": "application/x-gameboy-rom", ".gba": "application/x-gba-rom", ".gcrd": "text/directory", ".ged": "application/x-gedcom", ".gedcom": "application/x-gedcom", ".gen": "application/x-genesis-rom", ".gf": "application/x-tex-gf", ".gg": "application/x-sms-rom", ".gif": "image/gif", ".glade": "application/x-glade", ".gmo": "application/x-gettext-translation", ".gnc": "application/x-gnucash", ".gnd": "application/gnunet-directory", ".gnucash": "application/x-gnucash", ".gnumeric": "application/x-gnumeric", ".gnuplot": "application/x-gnuplot", ".gp": "application/x-gnuplot", ".gpg": "application/pgp-encrypted", ".gplt": "application/x-gnuplot", ".gra": "application/x-graphite", ".gsf": "application/x-font-type1", ".gsm": "audio/x-gsm", ".gtar": "application/x-tar", ".gv": "text/vnd.graphviz", ".gvp": "text/x-google-video-pointer", ".gz": "application/x-gzip", ".h": "text/x-chdr", ".h++": "text/x-c++hdr", ".hdf": "application/x-hdf", ".hh": "text/x-c++hdr", ".hp": "text/x-c++hdr", ".hpgl": "application/vnd.hp-hpgl", ".hpp": "text/x-c++hdr", ".hs": "text/x-haskell", ".htm": "text/html", ".html": "text/html", ".hwp": "application/x-hwp", ".hwt": "application/x-hwt", ".hxx": "text/x-c++hdr", ".ica": "application/x-ica", ".icb": "image/x-tga", ".icns": "image/x-icns", ".ico": "image/vnd.microsoft.icon", ".ics": "text/calendar", ".idl": "text/x-idl", ".ief": "image/ief", ".iff": "image/x-iff", ".ilbm": "image/x-ilbm", ".ime": "text/x-imelody", ".imy": "text/x-imelody", ".ins": "text/x-tex", ".iptables": "text/x-iptables", ".iso": "application/x-cd-image", ".iso9660": "application/x-cd-image", ".it": "audio/x-it", ".j2k": "image/jp2", ".jad": "text/vnd.sun.j2me.app-descriptor", ".jar": "application/x-java-archive", ".java": "text/x-java", ".jng": "image/x-jng", ".jnlp": "application/x-java-jnlp-file", ".jp2": "image/jp2", ".jpc": "image/jp2", ".jpe": "image/jpeg", ".jpeg": "image/jpeg", ".jpf": "image/jp2", ".jpg": "image/jpeg", ".jpr": "application/x-jbuilder-project", ".jpx": "image/jp2", ".js": "application/javascript", ".json": "application/json", ".jsonp": "application/jsonp", ".k25": "image/x-kodak-k25", ".kar": "audio/midi", ".karbon": "application/x-karbon", ".kdc": "image/x-kodak-kdc", ".kdelnk": "application/x-desktop", ".kexi": "application/x-kexiproject-sqlite3", ".kexic": "application/x-kexi-connectiondata", ".kexis": "application/x-kexiproject-shortcut", ".kfo": "application/x-kformula", ".kil": "application/x-killustrator", ".kino": "application/smil", ".kml": "application/vnd.google-earth.kml+xml", ".kmz": "application/vnd.google-earth.kmz", ".kon": "application/x-kontour", ".kpm": "application/x-kpovmodeler", ".kpr": "application/x-kpresenter", ".kpt": "application/x-kpresenter", ".kra": "application/x-krita", ".ksp": "application/x-kspread", ".kud": "application/x-kugar", ".kwd": "application/x-kword", ".kwt": "application/x-kword", ".la": "application/x-shared-library-la", ".latex": "text/x-tex", ".ldif": "text/x-ldif", ".lha": "application/x-lha", ".lhs": "text/x-literate-haskell", ".lhz": "application/x-lhz", ".log": "text/x-log", ".ltx": "text/x-tex", ".lua": "text/x-lua", ".lwo": "image/x-lwo", ".lwob": "image/x-lwo", ".lws": "image/x-lws", ".ly": "text/x-lilypond", ".lyx": "application/x-lyx", ".lz": "application/x-lzip", ".lzh": "application/x-lha", ".lzma": "application/x-lzma", ".lzo": "application/x-lzop", ".m": "text/x-matlab", ".m15": "audio/x-mod", ".m2t": "video/mpeg", ".m3u": "audio/x-mpegurl", ".m3u8": "audio/x-mpegurl", ".m4": "application/x-m4", ".m4a": "audio/mp4", ".m4b": "audio/x-m4b", ".m4v": "video/mp4", ".mab": "application/x-markaby", ".man": "application/x-troff-man", ".mbox": "application/mbox", ".md": "application/x-genesis-rom", ".mdb": "application/vnd.ms-access", ".mdi": "image/vnd.ms-modi", ".me": "text/x-troff-me", ".med": "audio/x-mod", ".metalink": "application/metalink+xml", ".mgp": "application/x-magicpoint", ".mid": "audio/midi", ".midi": "audio/midi", ".mif": "application/x-mif", ".minipsf": "audio/x-minipsf", ".mka": "audio/x-matroska", ".mkv": "video/x-matroska", ".ml": "text/x-ocaml", ".mli": "text/x-ocaml", ".mm": "text/x-troff-mm", ".mmf": "application/x-smaf", ".mml": "text/mathml", ".mng": "video/x-mng", ".mo": "application/x-gettext-translation", ".mo3": "audio/x-mo3", ".moc": "text/x-moc", ".mod": "audio/x-mod", ".mof": "text/x-mof", ".moov": "video/quicktime", ".mov": "video/quicktime", ".movie": "video/x-sgi-movie", ".mp+": "audio/x-musepack", ".mp2": "video/mpeg", ".mp3": "audio/mpeg", ".mp4": "video/mp4", ".mpc": "audio/x-musepack", ".mpe": "video/mpeg", ".mpeg": "video/mpeg", ".mpg": "video/mpeg", ".mpga": "audio/mpeg", ".mpp": "audio/x-musepack", ".mrl": "text/x-mrml", ".mrml": "text/x-mrml", ".mrw": "image/x-minolta-mrw", ".ms": "text/x-troff-ms", ".msi": "application/x-msi", ".msod": "image/x-msod", ".msx": "application/x-msx-rom", ".mtm": "audio/x-mod", ".mup": "text/x-mup", ".mxf": "application/mxf", ".n64": "application/x-n64-rom", ".nb": "application/mathematica", ".nc": "application/x-netcdf", ".nds": "application/x-nintendo-ds-rom", ".nef": "image/x-nikon-nef", ".nes": "application/x-nes-rom", ".nfo": "text/x-nfo", ".not": "text/x-mup", ".nsc": "application/x-netshow-channel", ".nsv": "video/x-nsv", ".o": "application/x-object", ".obj": "application/x-tgif", ".ocl": "text/x-ocl", ".oda": "application/oda", ".odb": "application/vnd.oasis.opendocument.database", ".odc": "application/vnd.oasis.opendocument.chart", ".odf": "application/vnd.oasis.opendocument.formula", ".odg": "application/vnd.oasis.opendocument.graphics", ".odi": "application/vnd.oasis.opendocument.image", ".odm": "application/vnd.oasis.opendocument.text-master", ".odp": "application/vnd.oasis.opendocument.presentation", ".ods": "application/vnd.oasis.opendocument.spreadsheet", ".odt": "application/vnd.oasis.opendocument.text", ".oga": "audio/ogg", ".ogg": "video/x-theora+ogg", ".ogm": "video/x-ogm+ogg", ".ogv": "video/ogg", ".ogx": "application/ogg", ".old": "application/x-trash", ".oleo": "application/x-oleo", ".opml": "text/x-opml+xml", ".ora": "image/openraster", ".orf": "image/x-olympus-orf", ".otc": "application/vnd.oasis.opendocument.chart-template", ".otf": "application/x-font-otf", ".otg": "application/vnd.oasis.opendocument.graphics-template", ".oth": "application/vnd.oasis.opendocument.text-web", ".otp": "application/vnd.oasis.opendocument.presentation-template", ".ots": "application/vnd.oasis.opendocument.spreadsheet-template", ".ott": "application/vnd.oasis.opendocument.text-template", ".owl": "application/rdf+xml", ".oxt": "application/vnd.openofficeorg.extension", ".p": "text/x-pascal", ".p10": "application/pkcs10", ".p12": "application/x-pkcs12", ".p7b": "application/x-pkcs7-certificates", ".p7s": "application/pkcs7-signature", ".pack": "application/x-java-pack200", ".pak": "application/x-pak", ".par2": "application/x-par2", ".pas": "text/x-pascal", ".patch": "text/x-patch", ".pbm": "image/x-portable-bitmap", ".pcd": "image/x-photo-cd", ".pcf": "application/x-cisco-vpn-settings", ".pcf.gz": "application/x-font-pcf", ".pcf.z": "application/x-font-pcf", ".pcl": "application/vnd.hp-pcl", ".pcx": "image/x-pcx", ".pdb": "chemical/x-pdb", ".pdc": "application/x-aportisdoc", ".pdf": "application/pdf", ".pdf.bz2": "application/x-bzpdf", ".pdf.gz": "application/x-gzpdf", ".pef": "image/x-pentax-pef", ".pem": "application/x-x509-ca-cert", ".perl": "application/x-perl", ".pfa": "application/x-font-type1", ".pfb": "application/x-font-type1", ".pfx": "application/x-pkcs12", ".pgm": "image/x-portable-graymap", ".pgn": "application/x-chess-pgn", ".pgp": "application/pgp-encrypted", ".php": "application/x-php", ".php3": "application/x-php", ".php4": "application/x-php", ".pict": "image/x-pict", ".pict1": "image/x-pict", ".pict2": "image/x-pict", ".pickle": "application/python-pickle", ".pk": "application/x-tex-pk", ".pkipath": "application/pkix-pkipath", ".pkr": "application/pgp-keys", ".pl": "application/x-perl", ".pla": "audio/x-iriver-pla", ".pln": "application/x-planperfect", ".pls": "audio/x-scpls", ".pm": "application/x-perl", ".png": "image/png", ".pnm": "image/x-portable-anymap", ".pntg": "image/x-macpaint", ".po": "text/x-gettext-translation", ".por": "application/x-spss-por", ".pot": "text/x-gettext-translation-template", ".ppm": "image/x-portable-pixmap", ".pps": "application/vnd.ms-powerpoint", ".ppt": "application/vnd.ms-powerpoint", ".pptm": "application/vnd.openxmlformats-officedocument.presentationml.presentation", ".pptx": "application/vnd.openxmlformats-officedocument.presentationml.presentation", ".ppz": "application/vnd.ms-powerpoint", ".prc": "application/x-palm-database", ".ps": "application/postscript", ".ps.bz2": "application/x-bzpostscript", ".ps.gz": "application/x-gzpostscript", ".psd": "image/vnd.adobe.photoshop", ".psf": "audio/x-psf", ".psf.gz": "application/x-gz-font-linux-psf", ".psflib": "audio/x-psflib", ".psid": "audio/prs.sid", ".psw": "application/x-pocket-word", ".pw": "application/x-pw", ".py": "text/x-python", ".pyc": "application/x-python-bytecode", ".pyo": "application/x-python-bytecode", ".qif": "image/x-quicktime", ".qt": "video/quicktime", ".qtif": "image/x-quicktime", ".qtl": "application/x-quicktime-media-link", ".qtvr": "video/quicktime", ".ra": "audio/vnd.rn-realaudio", ".raf": "image/x-fuji-raf", ".ram": "application/ram", ".rar": "application/x-rar", ".ras": "image/x-cmu-raster", ".raw": "image/x-panasonic-raw", ".rax": "audio/vnd.rn-realaudio", ".rb": "application/x-ruby", ".rdf": "application/rdf+xml", ".rdfs": "application/rdf+xml", ".reg": "text/x-ms-regedit", ".rej": "application/x-reject", ".rgb": "image/x-rgb", ".rle": "image/rle", ".rm": "application/vnd.rn-realmedia", ".rmj": "application/vnd.rn-realmedia", ".rmm": "application/vnd.rn-realmedia", ".rms": "application/vnd.rn-realmedia", ".rmvb": "application/vnd.rn-realmedia", ".rmx": "application/vnd.rn-realmedia", ".roff": "text/troff", ".rp": "image/vnd.rn-realpix", ".rpm": "application/x-rpm", ".rss": "application/rss+xml", ".rt": "text/vnd.rn-realtext", ".rtf": "application/rtf", ".rtx": "text/richtext", ".rv": "video/vnd.rn-realvideo", ".rvx": "video/vnd.rn-realvideo", ".s3m": "audio/x-s3m", ".sam": "application/x-amipro", ".sami": "application/x-sami", ".sav": "application/x-spss-sav", ".scm": "text/x-scheme", ".sda": "application/vnd.stardivision.draw", ".sdc": "application/vnd.stardivision.calc", ".sdd": "application/vnd.stardivision.impress", ".sdp": "application/sdp", ".sds": "application/vnd.stardivision.chart", ".sdw": "application/vnd.stardivision.writer", ".sgf": "application/x-go-sgf", ".sgi": "image/x-sgi", ".sgl": "application/vnd.stardivision.writer", ".sgm": "text/sgml", ".sgml": "text/sgml", ".sh": "application/x-shellscript", ".shar": "application/x-shar", ".shn": "application/x-shorten", ".siag": "application/x-siag", ".sid": "audio/prs.sid", ".sik": "application/x-trash", ".sis": "application/vnd.symbian.install", ".sisx": "x-epoc/x-sisx-app", ".sit": "application/x-stuffit", ".siv": "application/sieve", ".sk": "image/x-skencil", ".sk1": "image/x-skencil", ".skr": "application/pgp-keys", ".slk": "text/spreadsheet", ".smaf": "application/x-smaf", ".smc": "application/x-snes-rom", ".smd": "application/vnd.stardivision.mail", ".smf": "application/vnd.stardivision.math", ".smi": "application/x-sami", ".smil": "application/smil", ".sml": "application/smil", ".sms": "application/x-sms-rom", ".snd": "audio/basic", ".so": "application/x-sharedlib", ".spc": "application/x-pkcs7-certificates", ".spd": "application/x-font-speedo", ".spec": "text/x-rpm-spec", ".spl": "application/x-shockwave-flash", ".spx": "audio/x-speex", ".sql": "text/x-sql", ".sr2": "image/x-sony-sr2", ".src": "application/x-wais-source", ".srf": "image/x-sony-srf", ".srt": "application/x-subrip", ".ssa": "text/x-ssa", ".stc": "application/vnd.sun.xml.calc.template", ".std": "application/vnd.sun.xml.draw.template", ".sti": "application/vnd.sun.xml.impress.template", ".stm": "audio/x-stm", ".stw": "application/vnd.sun.xml.writer.template", ".sty": "text/x-tex", ".sub": "text/x-subviewer", ".sun": "image/x-sun-raster", ".sv4cpio": "application/x-sv4cpio", ".sv4crc": "application/x-sv4crc", ".svg": "image/svg+xml", ".svgz": "image/svg+xml-compressed", ".swf": "application/x-shockwave-flash", ".sxc": "application/vnd.sun.xml.calc", ".sxd": "application/vnd.sun.xml.draw", ".sxg": "application/vnd.sun.xml.writer.global", ".sxi": "application/vnd.sun.xml.impress", ".sxm": "application/vnd.sun.xml.math", ".sxw": "application/vnd.sun.xml.writer", ".sylk": "text/spreadsheet", ".t": "text/troff", ".t2t": "text/x-txt2tags", ".tar": "application/x-tar", ".tar.bz": "application/x-bzip-compressed-tar", ".tar.bz2": "application/x-bzip-compressed-tar", ".tar.gz": "application/x-compressed-tar", ".tar.lzma": "application/x-lzma-compressed-tar", ".tar.lzo": "application/x-tzo", ".tar.xz": "application/x-xz-compressed-tar", ".tar.z": "application/x-tarz", ".tbz": "application/x-bzip-compressed-tar", ".tbz2": "application/x-bzip-compressed-tar", ".tcl": "text/x-tcl", ".tex": "text/x-tex", ".texi": "text/x-texinfo", ".texinfo": "text/x-texinfo", ".tga": "image/x-tga", ".tgz": "application/x-compressed-tar", ".theme": "application/x-theme", ".themepack": "application/x-windows-themepack", ".tif": "image/tiff", ".tiff": "image/tiff", ".tk": "text/x-tcl", ".tlz": "application/x-lzma-compressed-tar", ".tnef": "application/vnd.ms-tnef", ".tnf": "application/vnd.ms-tnef", ".toc": "application/x-cdrdao-toc", ".torrent": "application/x-bittorrent", ".tpic": "image/x-tga", ".tr": "text/troff", ".ts": "application/x-linguist", ".tsv": "text/tab-separated-values", ".tta": "audio/x-tta", ".ttc": "application/x-font-ttf", ".ttf": "application/x-font-ttf", ".ttx": "application/x-font-ttx", ".txt": "text/plain", ".txz": "application/x-xz-compressed-tar", ".tzo": "application/x-tzo", ".ufraw": "application/x-ufraw", ".ui": "application/x-designer", ".uil": "text/x-uil", ".ult": "audio/x-mod", ".uni": "audio/x-mod", ".uri": "text/x-uri", ".url": "text/x-uri", ".ustar": "application/x-ustar", ".vala": "text/x-vala", ".vapi": "text/x-vala", ".vcf": "text/directory", ".vcs": "text/calendar", ".vct": "text/directory", ".vda": "image/x-tga", ".vhd": "text/x-vhdl", ".vhdl": "text/x-vhdl", ".viv": "video/vivo", ".vivo": "video/vivo", ".vlc": "audio/x-mpegurl", ".vob": "video/mpeg", ".voc": "audio/x-voc", ".vor": "application/vnd.stardivision.writer", ".vst": "image/x-tga", ".wav": "audio/x-wav", ".wax": "audio/x-ms-asx", ".wb1": "application/x-quattropro", ".wb2": "application/x-quattropro", ".wb3": "application/x-quattropro", ".wbmp": "image/vnd.wap.wbmp", ".wcm": "application/vnd.ms-works", ".wdb": "application/vnd.ms-works", ".webm": "video/webm", ".wk1": "application/vnd.lotus-1-2-3", ".wk3": "application/vnd.lotus-1-2-3", ".wk4": "application/vnd.lotus-1-2-3", ".wks": "application/vnd.ms-works", ".wma": "audio/x-ms-wma", ".wmf": "image/x-wmf", ".wml": "text/vnd.wap.wml", ".wmls": "text/vnd.wap.wmlscript", ".wmv": "video/x-ms-wmv", ".wmx": "audio/x-ms-asx", ".wp": "application/vnd.wordperfect", ".wp4": "application/vnd.wordperfect", ".wp5": "application/vnd.wordperfect", ".wp6": "application/vnd.wordperfect", ".wpd": "application/vnd.wordperfect", ".wpg": "application/x-wpg", ".wpl": "application/vnd.ms-wpl", ".wpp": "application/vnd.wordperfect", ".wps": "application/vnd.ms-works", ".wri": "application/x-mswrite", ".wrl": "model/vrml", ".wv": "audio/x-wavpack", ".wvc": "audio/x-wavpack-correction", ".wvp": "audio/x-wavpack", ".wvx": "audio/x-ms-asx", ".x3f": "image/x-sigma-x3f", ".xac": "application/x-gnucash", ".xbel": "application/x-xbel", ".xbl": "application/xml", ".xbm": "image/x-xbitmap", ".xcf": "image/x-xcf", ".xcf.bz2": "image/x-compressed-xcf", ".xcf.gz": "image/x-compressed-xcf", ".xhtml": "application/xhtml+xml", ".xi": "audio/x-xi", ".xla": "application/vnd.ms-excel", ".xlc": "application/vnd.ms-excel", ".xld": "application/vnd.ms-excel", ".xlf": "application/x-xliff", ".xliff": "application/x-xliff", ".xll": "application/vnd.ms-excel", ".xlm": "application/vnd.ms-excel", ".xls": "application/vnd.ms-excel", ".xlsm": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", ".xlsx": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", ".xlt": "application/vnd.ms-excel", ".xlw": "application/vnd.ms-excel", ".xm": "audio/x-xm", ".xmf": "audio/x-xmf", ".xmi": "text/x-xmi", ".xml": "application/xml", ".xpm": "image/x-xpixmap", ".xps": "application/vnd.ms-xpsdocument", ".xsl": "application/xml", ".xslfo": "text/x-xslfo", ".xslt": "application/xml", ".xspf": "application/xspf+xml", ".xul": "application/vnd.mozilla.xul+xml", ".xwd": "image/x-xwindowdump", ".xyz": "chemical/x-pdb", ".xz": "application/x-xz", ".w2p": "application/w2p", ".z": "application/x-compress", ".zabw": "application/x-abiword", ".zip": "application/zip", }
文件下载或读取时，需要文件对应的content-type
引用: https://blog.csdn.net/zzddada/article/details/123005455
