Java 下载文件扩展名以及Mime-ContentType参照枚举类（详细）

背景

对接Minio等OSS文件存储的时候，我们市场会发现需要填写文件格式，不然默认就是application/octet-stream 这种二进制文件流，需要我们自己手动改文件拓展名才能打开

文件扩展名（后缀）和文件流（Mime）参照表

这里我通过脚本的方式写了一个枚举类，因为实在太多了，我一个个CV，估计天都亮了

import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;

/**
 * HTTP Content-type对照表
 *
 * @author louis
 * @since 2023-03-06
 */
public enum FileMimeEnums {
    FILE_DEFAULT(".*", "application/octet-stream"),
    FILE_001(".001", "application/x-001"),
    FILE_301(".301", "application/x-301"),
    FILE_323(".323", "text/h323"),
    FILE_906(".906", "application/x-906"),
    FILE_907(".907", "drawing/907"),
    FILE_A11(".a11", "application/x-a11"),
    FILE_ACP(".acp", "audio/x-mei-aac"),
    FILE_AI(".ai", "application/postscript"),
    FILE_AIF(".aif", "audio/aiff"),
    FILE_AIFC(".aifc", "audio/aiff"),
    FILE_AIFF(".aiff", "audio/aiff"),
    FILE_ANV(".anv", "application/x-anv"),
    FILE_ASA(".asa", "text/asa"),
    FILE_ASF(".asf", "video/x-ms-asf"),
    FILE_ASP(".asp", "text/asp"),
    FILE_ASX(".asx", "video/x-ms-asf"),
    FILE_AU(".au", "audio/basic"),
    FILE_AVI(".avi", "video/avi"),
    FILE_AWF(".awf", "application/vnd.adobe.workflow"),
    FILE_BIZ(".biz", "text/xml"),
    FILE_BMP(".bmp", "application/x-bmp"),
    FILE_BOT(".bot", "application/x-bot"),
    FILE_C4T(".c4t", "application/x-c4t"),
    FILE_C90(".c90", "application/x-c90"),
    FILE_CAL(".cal", "application/x-cals"),
    FILE_CAT(".cat", "application/vnd.ms-pki.seccat"),
    FILE_CDF(".cdf", "application/x-netcdf"),
    FILE_CDR(".cdr", "application/x-cdr"),
    FILE_CEL(".cel", "application/x-cel"),
    FILE_CER(".cer", "application/x-x509-ca-cert"),
    FILE_CG4(".cg4", "application/x-g4"),
    FILE_CGM(".cgm", "application/x-cgm"),
    FILE_CIT(".cit", "application/x-cit"),
    FILE_CLASS(".class", "java/*"),
    FILE_CML(".cml", "text/xml"),
    FILE_CMP(".cmp", "application/x-cmp"),
    FILE_CMX(".cmx", "application/x-cmx"),
    FILE_COT(".cot", "application/x-cot"),
    FILE_CRL(".crl", "application/pkix-crl"),
    FILE_CRT(".crt", "application/x-x509-ca-cert"),
    FILE_CSI(".csi", "application/x-csi"),
    FILE_CSS(".css", "text/css"),
    FILE_CUT(".cut", "application/x-cut"),
    FILE_DBF(".dbf", "application/x-dbf"),
    FILE_DBM(".dbm", "application/x-dbm"),
    FILE_DBX(".dbx", "application/x-dbx"),
    FILE_DCD(".dcd", "text/xml"),
    FILE_DCX(".dcx", "application/x-dcx"),
    FILE_DER(".der", "application/x-x509-ca-cert"),
    FILE_DGN(".dgn", "application/x-dgn"),
    FILE_DIB(".dib", "application/x-dib"),
    FILE_DLL(".dll", "application/x-msdownload"),
    FILE_DOC(".doc", "application/msword"),
    FILE_DOT(".dot", "application/msword"),
    FILE_DRW(".drw", "application/x-drw"),
    FILE_DTD(".dtd", "text/xml"),
    FILE_DWF(".dwf", "application/x-dwf"),
    FILE_DWG(".dwg", "application/x-dwg"),
    FILE_DXB(".dxb", "application/x-dxb"),
    FILE_DXF(".dxf", "application/x-dxf"),
    FILE_EDN(".edn", "application/vnd.adobe.edn"),
    FILE_EMF(".emf", "application/x-emf"),
    FILE_EML(".eml", "message/rfc822"),
    FILE_ENT(".ent", "text/xml"),
    FILE_EPI(".epi", "application/x-epi"),
    FILE_EPS(".eps", "application/x-ps"),
    FILE_ETD(".etd", "application/x-ebx"),
    FILE_EXE(".exe", "application/x-msdownload"),
    FILE_FAX(".fax", "image/fax"),
    FILE_FDF(".fdf", "application/vnd.fdf"),
    FILE_FIF(".fif", "application/fractals"),
    FILE_FO(".fo", "text/xml"),
    FILE_FRM(".frm", "application/x-frm"),
    FILE_G4(".g4", "application/x-g4"),
    FILE_GBR(".gbr", "application/x-gbr"),
    FILE_GCD(".gcd", "application/x-gcd"),
    FILE_GIF(".gif", "image/gif"),
    FILE_GL2(".gl2", "application/x-gl2"),
    FILE_GP4(".gp4", "application/x-gp4"),
    FILE_HGL(".hgl", "application/x-hgl"),
    FILE_HMR(".hmr", "application/x-hmr"),
    FILE_HPG(".hpg", "application/x-hpgl"),
    FILE_HPL(".hpl", "application/x-hpl"),
    FILE_HQX(".hqx", "application/mac-binhex40"),
    FILE_HRF(".hrf", "application/x-hrf"),
    FILE_HTA(".hta", "application/hta"),
    FILE_HTC(".htc", "text/x-component"),
    FILE_HTM(".htm", "text/html"),
    FILE_HTML(".html", "text/html"),
    FILE_HTT(".htt", "text/webviewhtml"),
    FILE_HTX(".htx", "text/html"),
    FILE_ICB(".icb", "application/x-icb"),
    FILE_ICO(".ico", "image/x-icon"),
    FILE_IFF(".iff", "application/x-iff"),
    FILE_IG4(".ig4", "application/x-g4"),
    FILE_IGS(".igs", "application/x-igs"),
    FILE_III(".iii", "application/x-iphone"),
    FILE_IMG(".img", "application/x-img"),
    FILE_INS(".ins", "application/x-internet-signup"),
    FILE_ISP(".isp", "application/x-internet-signup"),
    FILE_IVF(".IVF", "video/x-ivf"),
    FILE_JAVA(".java", "java/*"),
    FILE_JFIF(".jfif", "image/jpeg"),
    FILE_JPE(".jpe", "image/jpeg"),
    FILE_JPEG(".jpeg", "image/jpeg"),
    FILE_JPG(".jpg", "image/jpeg"),
    FILE_JS(".js", "application/x-javascript"),
    FILE_JSP(".jsp", "text/html"),
    FILE_LA1(".la1", "audio/x-liquid-file"),
    FILE_LAR(".lar", "application/x-laplayer-reg"),
    FILE_LATEX(".latex", "application/x-latex"),
    FILE_LAVS(".lavs", "audio/x-liquid-secure"),
    FILE_LBM(".lbm", "application/x-lbm"),
    FILE_LMSFF(".lmsff", "audio/x-la-lms"),
    FILE_LS(".ls", "application/x-javascript"),
    FILE_LTR(".ltr", "application/x-ltr"),
    FILE_M1V(".m1v", "video/x-mpeg"),
    FILE_M2V(".m2v", "video/x-mpeg"),
    FILE_M3U(".m3u", "audio/mpegurl"),
    FILE_M4E(".m4e", "video/mpeg4"),
    FILE_MAC(".mac", "application/x-mac"),
    FILE_MAN(".man", "application/x-troff-man"),
    FILE_MATH(".math", "text/xml"),
    FILE_MDB(".mdb", "application/msaccess"),
    FILE_MFP(".mfp", "application/x-shockwave-flash"),
    FILE_MHT(".mht", "message/rfc822"),
    FILE_MHTML(".mhtml", "message/rfc822"),
    FILE_MI(".mi", "application/x-mi"),
    FILE_MID(".mid", "audio/mid"),
    FILE_MIDI(".midi", "audio/mid"),
    FILE_MIL(".mil", "application/x-mil"),
    FILE_MML(".mml", "text/xml"),
    FILE_MND(".mnd", "audio/x-musicnet-download"),
    FILE_MNS(".mns", "audio/x-musicnet-stream"),
    FILE_MOCHA(".mocha", "application/x-javascript"),
    FILE_MOVIE(".movie", "video/x-sgi-movie"),
    FILE_MP1(".mp1", "audio/mp1"),
    FILE_MP2(".mp2", "audio/mp2"),
    FILE_MP2V(".mp2v", "video/mpeg"),
    FILE_MP3(".mp3", "audio/mp3"),
    FILE_MP4(".mp4", "video/mpeg4"),
    FILE_MPA(".mpa", "video/x-mpg"),
    FILE_MPD(".mpd", "application/vnd.ms-project"),
    FILE_MPE(".mpe", "video/x-mpeg"),
    FILE_MPEG(".mpeg", "video/mpg"),
    FILE_MPG(".mpg", "video/mpg"),
    FILE_MPGA(".mpga", "audio/rn-mpeg"),
    FILE_MPP(".mpp", "application/vnd.ms-project"),
    FILE_MPS(".mps", "video/x-mpeg"),
    FILE_MPT(".mpt", "application/vnd.ms-project"),
    FILE_MPV(".mpv", "video/mpg"),
    FILE_MPV2(".mpv2", "video/mpeg"),
    FILE_MPW(".mpw", "application/vnd.ms-project"),
    FILE_MPX(".mpx", "application/vnd.ms-project"),
    FILE_MTX(".mtx", "text/xml"),
    FILE_MXP(".mxp", "application/x-mmxp"),
    FILE_NET(".net", "image/pnetvue"),
    FILE_NRF(".nrf", "application/x-nrf"),
    FILE_NWS(".nws", "message/rfc822"),
    FILE_ODC(".odc", "text/x-ms-odc"),
    FILE_OUT(".out", "application/x-out"),
    FILE_P10(".p10", "application/pkcs10"),
    FILE_P12(".p12", "application/x-pkcs12"),
    FILE_P7B(".p7b", "application/x-pkcs7-certificates"),
    FILE_P7C(".p7c", "application/pkcs7-mime"),
    FILE_P7M(".p7m", "application/pkcs7-mime"),
    FILE_P7R(".p7r", "application/x-pkcs7-certreqresp"),
    FILE_P7S(".p7s", "application/pkcs7-signature"),
    FILE_PC5(".pc5", "application/x-pc5"),
    FILE_PCI(".pci", "application/x-pci"),
    FILE_PCL(".pcl", "application/x-pcl"),
    FILE_PCX(".pcx", "application/x-pcx"),
    FILE_PDF(".pdf", "application/pdf"),
    FILE_PDX(".pdx", "application/vnd.adobe.pdx"),
    FILE_PFX(".pfx", "application/x-pkcs12"),
    FILE_PGL(".pgl", "application/x-pgl"),
    FILE_PIC(".pic", "application/x-pic"),
    FILE_PKO(".pko", "application/vnd.ms-pki.pko"),
    FILE_PL(".pl", "application/x-perl"),
    FILE_PLG(".plg", "text/html"),
    FILE_PLS(".pls", "audio/scpls"),
    FILE_PLT(".plt", "application/x-plt"),
    FILE_PNG(".png", "image/png"),
    FILE_POT(".pot", "application/vnd.ms-powerpoint"),
    FILE_PPA(".ppa", "application/vnd.ms-powerpoint"),
    FILE_PPM(".ppm", "application/x-ppm"),
    FILE_PPS(".pps", "application/vnd.ms-powerpoint"),
    FILE_PPT(".ppt", "application/vnd.ms-powerpoint"),
    FILE_PR(".pr", "application/x-pr"),
    FILE_PRF(".prf", "application/pics-rules"),
    FILE_PRN(".prn", "application/x-prn"),
    FILE_PRT(".prt", "application/x-prt"),
    FILE_PS(".ps", "application/postscript"),
    FILE_PTN(".ptn", "application/x-ptn"),
    FILE_PWZ(".pwz", "application/vnd.ms-powerpoint"),
    FILE_R3T(".r3t", "text/vnd.rn-realtext3d"),
    FILE_RA(".ra", "audio/vnd.rn-realaudio"),
    FILE_RAM(".ram", "audio/x-pn-realaudio"),
    FILE_RAS(".ras", "application/x-ras"),
    FILE_RAT(".rat", "application/rat-file"),
    FILE_RDF(".rdf", "text/xml"),
    FILE_REC(".rec", "application/vnd.rn-recording"),
    FILE_RED(".red", "application/x-red"),
    FILE_RGB(".rgb", "application/x-rgb"),
    FILE_RJS(".rjs", "application/vnd.rn-realsystem-rjs"),
    FILE_RJT(".rjt", "application/vnd.rn-realsystem-rjt"),
    FILE_RLC(".rlc", "application/x-rlc"),
    FILE_RLE(".rle", "application/x-rle"),
    FILE_RM(".rm", "application/vnd.rn-realmedia"),
    FILE_RMF(".rmf", "application/vnd.adobe.rmf"),
    FILE_RMI(".rmi", "audio/mid"),
    FILE_RMJ(".rmj", "application/vnd.rn-realsystem-rmj"),
    FILE_RMM(".rmm", "audio/x-pn-realaudio"),
    FILE_RMP(".rmp", "application/vnd.rn-rn_music_package"),
    FILE_RMS(".rms", "application/vnd.rn-realmedia-secure"),
    FILE_RMVB(".rmvb", "application/vnd.rn-realmedia-vbr"),
    FILE_RMX(".rmx", "application/vnd.rn-realsystem-rmx"),
    FILE_RNX(".rnx", "application/vnd.rn-realplayer"),
    FILE_RP(".rp", "image/vnd.rn-realpix"),
    FILE_RPM(".rpm", "audio/x-pn-realaudio-plugin"),
    FILE_RSML(".rsml", "application/vnd.rn-rsml"),
    FILE_RT(".rt", "text/vnd.rn-realtext"),
    FILE_RTF(".rtf", "application/msword"),
    FILE_RV(".rv", "video/vnd.rn-realvideo"),
    FILE_SAM(".sam", "application/x-sam"),
    FILE_SAT(".sat", "application/x-sat"),
    FILE_SDP(".sdp", "application/sdp"),
    FILE_SDW(".sdw", "application/x-sdw"),
    FILE_SIT(".sit", "application/x-stuffit"),
    FILE_SLB(".slb", "application/x-slb"),
    FILE_SLD(".sld", "application/x-sld"),
    FILE_SLK(".slk", "drawing/x-slk"),
    FILE_SMI(".smi", "application/smil"),
    FILE_SMIL(".smil", "application/smil"),
    FILE_SMK(".smk", "application/x-smk"),
    FILE_SND(".snd", "audio/basic"),
    FILE_SOL(".sol", "text/plain"),
    FILE_SOR(".sor", "text/plain"),
    FILE_SPC(".spc", "application/x-pkcs7-certificates"),
    FILE_SPL(".spl", "application/futuresplash"),
    FILE_SPP(".spp", "text/xml"),
    FILE_SSM(".ssm", "application/streamingmedia"),
    FILE_SST(".sst", "application/vnd.ms-pki.certstore"),
    FILE_STL(".stl", "application/vnd.ms-pki.stl"),
    FILE_STM(".stm", "text/html"),
    FILE_STY(".sty", "application/x-sty"),
    FILE_SVG(".svg", "text/xml"),
    FILE_SWF(".swf", "application/x-shockwave-flash"),
    FILE_TDF(".tdf", "application/x-tdf"),
    FILE_TG4(".tg4", "application/x-tg4"),
    FILE_TGA(".tga", "application/x-tga"),
    FILE_TIF(".tif", "image/tiff"),
    FILE_TIFF(".tiff", "image/tiff"),
    FILE_TLD(".tld", "text/xml"),
    FILE_TOP(".top", "drawing/x-top"),
    FILE_TORRENT(".torrent", "application/x-bittorrent"),
    FILE_TSD(".tsd", "text/xml"),
    FILE_TXT(".txt", "text/plain"),
    FILE_UIN(".uin", "application/x-icq"),
    FILE_ULS(".uls", "text/iuls"),
    FILE_VCF(".vcf", "text/x-vcard"),
    FILE_VDA(".vda", "application/x-vda"),
    FILE_VDX(".vdx", "application/vnd.visio"),
    FILE_VML(".vml", "text/xml"),
    FILE_VPG(".vpg", "application/x-vpeg005"),
    FILE_VSD(".vsd", "application/vnd.visio"),
    FILE_VSS(".vss", "application/vnd.visio"),
    FILE_VST(".vst", "application/vnd.visio"),
    FILE_VSW(".vsw", "application/vnd.visio"),
    FILE_VSX(".vsx", "application/vnd.visio"),
    FILE_VTX(".vtx", "application/vnd.visio"),
    FILE_VXML(".vxml", "text/xml"),
    FILE_WAV(".wav", "audio/wav"),
    FILE_WAX(".wax", "audio/x-ms-wax"),
    FILE_WB1(".wb1", "application/x-wb1"),
    FILE_WB2(".wb2", "application/x-wb2"),
    FILE_WB3(".wb3", "application/x-wb3"),
    FILE_WBMP(".wbmp", "image/vnd.wap.wbmp"),
    FILE_WIZ(".wiz", "application/msword"),
    FILE_WK3(".wk3", "application/x-wk3"),
    FILE_WK4(".wk4", "application/x-wk4"),
    FILE_WKQ(".wkq", "application/x-wkq"),
    FILE_WKS(".wks", "application/x-wks"),
    FILE_WM(".wm", "video/x-ms-wm"),
    FILE_WMA(".wma", "audio/x-ms-wma"),
    FILE_WMD(".wmd", "application/x-ms-wmd"),
    FILE_WMF(".wmf", "application/x-wmf"),
    FILE_WML(".wml", "text/vnd.wap.wml"),
    FILE_WMV(".wmv", "video/x-ms-wmv"),
    FILE_WMX(".wmx", "video/x-ms-wmx"),
    FILE_WMZ(".wmz", "application/x-ms-wmz"),
    FILE_WP6(".wp6", "application/x-wp6"),
    FILE_WPD(".wpd", "application/x-wpd"),
    FILE_WPG(".wpg", "application/x-wpg"),
    FILE_WPL(".wpl", "application/vnd.ms-wpl"),
    FILE_WQ1(".wq1", "application/x-wq1"),
    FILE_WR1(".wr1", "application/x-wr1"),
    FILE_WRI(".wri", "application/x-wri"),
    FILE_WRK(".wrk", "application/x-wrk"),
    FILE_WS(".ws", "application/x-ws"),
    FILE_WS2(".ws2", "application/x-ws"),
    FILE_WSC(".wsc", "text/scriptlet"),
    FILE_WSDL(".wsdl", "text/xml"),
    FILE_WVX(".wvx", "video/x-ms-wvx"),
    FILE_XDP(".xdp", "application/vnd.adobe.xdp"),
    FILE_XDR(".xdr", "text/xml"),
    FILE_XFD(".xfd", "application/vnd.adobe.xfd"),
    FILE_XFDF(".xfdf", "application/vnd.adobe.xfdf"),
    FILE_XHTML(".xhtml", "text/html"),
    FILE_XLS(".xls", "application/x-xls"),
    FILE_XLW(".xlw", "application/x-xlw"),
    FILE_XML(".xml", "text/xml"),
    FILE_XPL(".xpl", "audio/scpls"),
    FILE_XQ(".xq", "text/xml"),
    FILE_XQL(".xql", "text/xml"),
    FILE_XQUERY(".xquery", "text/xml"),
    FILE_XSD(".xsd", "text/xml"),
    FILE_XSL(".xsl", "text/xml"),
    FILE_XSLT(".xslt", "text/xml"),
    FILE_XWD(".xwd", "application/x-xwd"),
    FILE_X_B(".x_b", "application/x-x_b"),
    FILE_X_T(".x_t", "application/x-x_t"),

    ;


    private String extension;

    private String contentType;

    FileMimeEnums(String extension, String contentType) {
        this.extension = extension;
        this.contentType = contentType;
    }


    public String getExtension() {
        return extension;
    }

    public String getContentType() {
        return contentType;
    }

    public Map<String, String> convertToMap() {
        Map<String, String> map = new HashMap<>();
        Arrays.stream(FileMimeEnums.values()).forEach(item -> {
            map.put(item.getExtension(), item.getContentType());
        });
        return map;
    }
}

几乎包含常见和罕见的文件格式以及对应Java下载Mime流类型，类的最后我写了一个枚举转Map的方法，可以去匹配，记得大小写问题~~~