public void downloadExcel(HttpServletResponse response, HttpServletRequest request) throws Exception {
FileInputStream fis = null;
ServletOutputStream sos = null;
try {
response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");//设置响应头
String fileName = "xxx.xlsx";//下载保存文件名
response.setHeader("Content-Disposition", "attachment;filename=" + FileUtils.encodeFileName(fileName, request));
fis = new FileInputStream(new ClassPathResource("xxx/xxx/xxx").getFile()); //"xxx/xxx/xxx" 文件所在的路径
sos = response.getOutputStream();
IOUtils.copy(fis, sos);
} catch (Exception e) {
e.printStackTrace();
throw new Exception();
} finally {
if (fis != null) {
fis.close();
}
if (sos != null) {
sos.flush();
sos.close();
}
}
}
注意：下载resources下的文件名称不能是中文
响应头文件类型（后面值代表文件类型）
("application/andrew-inset", "ez");
("application/dsptype", "tsp");
("application/json", "json");
("application/futuresplash", "spl");
("application/hta", "hta");
("application/mac-binhex40", "hqx");
("application/mac-compactpro", "cpt");
("application/mathematica", "nb");
("application/msaccess", "mdb");
("application/oda", "oda");
("application/ogg", "ogg");
("application/pdf", "pdf");
("application/pgp-keys", "key");
("application/pgp-signature", "pgp");
("application/pics-rules", "prf");
("application/rar", "rar");
("application/rdf+xml", "rdf");
("application/rss+xml", "rss");
("application/zip", "zip");
("application/vnd.android.package-archive", "apk");
("application/vnd.cinderella", "cdy");
("application/vnd.ms-pki.stl", "stl");
("application/vnd.oasis.opendocument.database", "odb");
("application/vnd.oasis.opendocument.formula", "odf");
("application/vnd.oasis.opendocument.graphics", "odg");
("application/vnd.oasis.opendocument.graphics-template", "otg");
("application/vnd.oasis.opendocument.image", "odi");
("application/vnd.oasis.opendocument.spreadsheet", "ods");
("application/vnd.oasis.opendocument.spreadsheet-template", "ots");
("application/vnd.oasis.opendocument.text", "odt");
("application/vnd.oasis.opendocument.text-master", "odm");
("application/vnd.oasis.opendocument.text-template", "ott");
("application/vnd.oasis.opendocument.text-web", "oth");
("application/vnd.google-earth.kml+xml", "kml");
("application/vnd.google-earth.kmz", "kmz");
("application/msword", "doc");
("application/msword", "dot");
("application/vnd.openxmlformats-officedocument.wordprocessingml.document", "docx");
("application/vnd.openxmlformats-officedocument.wordprocessingml.template", "dotx");
("application/vnd.ms-excel", "xls");
("application/vnd.ms-excel", "xlt");
("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", "xlsx");
("application/vnd.openxmlformats-officedocument.spreadsheetml.template", "xltx");
("application/vnd.ms-powerpoint", "ppt");
("application/vnd.ms-powerpoint", "pot");
("application/vnd.ms-powerpoint", "pps");
("application/vnd.openxmlformats-officedocument.presentationml.presentation", "pptx");
("application/vnd.openxmlformats-officedocument.presentationml.template", "potx");
("application/vnd.openxmlformats-officedocument.presentationml.slideshow", "ppsx");
("application/vnd.rim.cod", "cod");
("application/vnd.smaf", "mmf");
("application/vnd.stardivision.calc", "sdc");
("application/vnd.stardivision.draw", "sda");
("application/vnd.stardivision.impress", "sdd");
("application/vnd.stardivision.impress", "sdp");
("application/vnd.stardivision.math", "smf");
("application/vnd.stardivision.writer", "sdw");
("application/vnd.stardivision.writer", "vor");
("application/vnd.stardivision.writer-global", "sgl");
("application/vnd.sun.xml.calc", "sxc");
("application/vnd.sun.xml.calc.template", "stc");
("application/vnd.sun.xml.draw", "sxd");
("application/vnd.sun.xml.draw.template", "std");
("application/vnd.sun.xml.impress", "sxi");
("application/vnd.sun.xml.impress.template", "sti");
("application/vnd.sun.xml.math", "sxm");
("application/vnd.sun.xml.writer", "sxw");
("application/vnd.sun.xml.writer.global", "sxg");
("application/vnd.sun.xml.writer.template", "stw");
("application/vnd.visio", "vsd");
("application/x-abiword", "abw");
("application/x-apple-diskimage", "dmg");
("application/x-bcpio", "bcpio");
("application/x-bittorrent", "torrent");
("application/x-cdf", "cdf");
("application/x-cdlink", "vcd");
("application/x-chess-pgn", "pgn");
("application/x-cpio", "cpio");
("application/x-debian-package", "deb");
("application/x-debian-package", "udeb");
("application/x-director", "dcr");
("application/x-director", "dir");
("application/x-director", "dxr");
("application/x-dms", "dms");
("application/x-doom", "wad");
("application/x-dvi", "dvi");
("application/x-flac", "flac");
("application/x-font", "pfa");
("application/x-font", "pfb");
("application/x-font", "gsf");
("application/x-font", "pcf");
("application/x-font", "pcf.Z");
("application/x-freemind", "mm");
("application/x-futuresplash", "spl");
("application/x-gnumeric", "gnumeric");
("application/x-go-sgf", "sgf");
("application/x-graphing-calculator", "gcf");
("application/x-gtar", "gtar");
("application/x-gtar", "tgz");
("application/x-gtar", "taz");
("application/x-hdf", "hdf");
("application/x-ica", "ica");
("application/x-internet-signup", "ins");
("application/x-internet-signup", "isp");
("application/x-iphone", "iii");
("application/x-iso9660-image", "iso");
("application/x-jmol", "jmz");
("application/x-kchart", "chrt");
("application/x-killustrator", "kil");
("application/x-koan", "skp");
("application/x-koan", "skd");
("application/x-koan", "skt");
("application/x-koan", "skm");
("application/x-kpresenter", "kpr");
("application/x-kpresenter", "kpt");
("application/x-kspread", "ksp");
("application/x-kword", "kwd");
("application/x-kword", "kwt");
("application/x-latex", "latex");
("application/x-lha", "lha");
("application/x-lzh", "lzh");
("application/x-lzx", "lzx");
("application/x-maker", "frm");
("application/x-maker", "maker");
("application/x-maker", "frame");
("application/x-maker", "fb");
("application/x-maker", "book");
("application/x-maker", "fbdoc");
("application/x-mif", "mif");
("application/x-ms-wmd", "wmd");
("application/x-ms-wmz", "wmz");
("application/x-msi", "msi");
("application/x-ns-proxy-autoconfig", "pac");
("application/x-nwc", "nwc");
("application/x-object", "o");
("application/x-oz-application", "oza");
("application/x-pkcs12", "p12");
("application/x-pkcs12", "pfx");
("application/x-pkcs7-certreqresp", "p7r");
("application/x-pkcs7-crl", "crl");
("application/x-quicktimeplayer", "qtl");
("application/x-shar", "shar");
("application/x-shockwave-flash", "swf");
("application/x-stuffit", "sit");
("application/x-sv4cpio", "sv4cpio");
("application/x-sv4crc", "sv4crc");
("application/x-tar", "tar");
("application/x-texinfo", "texinfo");
("application/x-texinfo", "texi");
("application/x-troff", "t");
("application/x-troff", "roff");
("application/x-troff-man", "man");
("application/x-ustar", "ustar");
("application/x-wais-source", "src");
("application/x-wingz", "wz");
("application/x-webarchive", "webarchive");
("application/x-webarchive-xml", "webarchivexml");
("application/x-x509-ca-cert", "crt");
("application/x-x509-user-cert", "crt");
("application/x-xcf", "xcf");
("application/x-xfig", "fig");
("application/xhtml+xml", "xhtml");
("audio/3gpp", "3gpp");
("audio/amr", "amr");
("audio/basic", "snd");
("audio/midi", "mid");
("audio/midi", "midi");
("audio/midi", "kar");
("audio/midi", "xmf");
("audio/mobile-xmf", "mxmf");
("audio/mpeg", "mpga");
("audio/mpeg", "mpega");
("audio/mpeg", "mp2");
("audio/mpeg", "mp3");
("audio/mpeg", "m4a");
("audio/mpegurl", "m3u");
("audio/prs.sid", "sid");
("audio/x-aiff", "aif");
("audio/x-aiff", "aiff");
("audio/x-aiff", "aifc");
("audio/x-gsm", "gsm");
("audio/x-mpegurl", "m3u");
("audio/x-ms-wma", "wma");
("audio/x-ms-wax", "wax");
("audio/x-pn-realaudio", "ra");
("audio/x-pn-realaudio", "rm");
("audio/x-pn-realaudio", "ram");
("audio/x-realaudio", "ra");
("audio/x-scpls", "pls");
("audio/x-sd2", "sd2");
("audio/x-wav", "wav");
("image/bmp", "bmp");
("image/gif", "gif");
("image/ico", "cur");
("image/ico", "ico");
("image/ief", "ief");
("image/jpeg", "jpeg");
("image/jpeg", "jpg");
("image/jpeg", "jpe");
("image/pcx", "pcx");
("image/png", "png");
("image/svg+xml", "svg");
("image/svg+xml", "svgz");
("image/tiff", "tiff");
("image/tiff", "tif");
("image/vnd.djvu", "djvu");
("image/vnd.djvu", "djv");
("image/vnd.wap.wbmp", "wbmp");
("image/x-cmu-raster", "ras");
("image/x-coreldraw", "cdr");
("image/x-coreldrawpattern", "pat");
("image/x-coreldrawtemplate", "cdt");
("image/x-corelphotopaint", "cpt");
("image/x-icon", "ico");
("image/x-jg", "art");
("image/x-jng", "jng");
("image/x-ms-bmp", "bmp");
("image/x-photoshop", "psd");
("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-xbitmap", "xbm");
("image/x-xpixmap", "xpm");
("image/x-xwindowdump", "xwd");
("model/iges", "igs");
("model/iges", "iges");
("model/mesh", "msh");
("model/mesh", "mesh");
("model/mesh", "silo");
("text/calendar", "ics");
("text/calendar", "icz");
("text/comma-separated-values", "csv");
("text/css", "css");
("text/html", "htm");
("text/html", "html");
("text/h323", "323");
("text/iuls", "uls");
("text/mathml", "mml");
("text/plain", "txt");
("text/plain", "asc");
("text/plain", "text");
("text/plain", "diff");
("text/plain", "po");
("text/richtext", "rtx");
("text/rtf", "rtf");
("text/texmacs", "ts");
("text/text", "phps");
("text/tab-separated-values", "tsv");
("text/xml", "xml");
("text/x-bibtex", "bib");
("text/x-boo", "boo");
("text/x-c++hdr", "h++");
("text/x-c++hdr", "hpp");
("text/x-c++hdr", "hxx");
("text/x-c++hdr", "hh");
("text/x-c++src", "c++");
("text/x-c++src", "cpp");
("text/x-c++src", "cxx");
("text/x-chdr", "h");
("text/x-component", "htc");
("text/x-csh", "csh");
("text/x-csrc", "c");
("text/x-dsrc", "d");
("text/x-haskell", "hs");
("text/x-java", "java");
("text/x-literate-haskell", "lhs");
("text/x-moc", "moc");
("text/x-pascal", "p");
("text/x-pascal", "pas");
("text/x-pcs-gcd", "gcd");
("text/x-setext", "etx");
("text/x-tcl", "tcl");
("text/x-tex", "tex");
("text/x-tex", "ltx");
("text/x-tex", "sty");
("text/x-tex", "cls");
("text/x-vcalendar", "vcs");
("text/x-vcard", "vcf");
("video/3gpp", "3gpp");
("video/3gpp", "3gp");
("video/3gpp", "3g2");
("video/dl", "dl");
("video/dv", "dif");
("video/dv", "dv");
("video/fli", "fli");
("video/m4v", "m4v");
("video/mpeg", "mpeg");
("video/mpeg", "mpg");
("video/mpeg", "mpe");
("video/mp4", "mp4");
("video/mpeg", "VOB");
("video/quicktime", "qt");
("video/quicktime", "mov");
("video/vnd.mpegurl", "mxu");
("video/x-la-asf", "lsf");
("video/x-la-asf", "lsx");
("video/x-mng", "mng");
("video/x-ms-asf", "asf");
("video/x-ms-asf", "asx");
("video/x-ms-wm", "wm");
("video/x-ms-wmv", "wmv");
("video/x-ms-wmx", "wmx");
("video/x-ms-wvx", "wvx");
("video/x-msvideo", "avi");
("video/x-sgi-movie", "movie");
("x-conference/x-cooltalk", "ice");
("x-epoc/x-sisx-app", "sisx");
