今天在实现一个安装apk的代码中看到一段代码为：application/vnd.android.package-archive，不知其意，所以百度了一下，了解到这是一种MIME的类型，代表apk类型。
代码如下：
//安装apk protected void installApk(File file) { Intent intent = new Intent(); //执行动作 intent.setAction(Intent.ACTION_VIEW); //执行的数据类型 intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive"); startActivity(intent); } 格式前面为后缀名，后面为对应的MIME型
（例如： ".apk", "application/vnd.android.package-archive" 表示。.apk对应的是application/vnd.android.package-archive）
import java.io.File;public class MimeTest { /** * MIME全部类型映射 */ final static String[][] MIME_MapTable = { { ".323", "text/h323" }, { ".3gp", "video/3gpp" }, { ".aab", "application/x-authoware-bin" }, { ".aam", "application/x-authoware-map" }, { ".aas", "application/x-authoware-seg" }, { ".acx", "application/internet-property-stream" }, { ".ai", "application/postscript" }, { ".aif", "audio/x-aiff" }, { ".aifc", "audio/x-aiff" }, { ".aiff", "audio/x-aiff" }, { ".als", "audio/X-Alpha5" }, { ".amc", "application/x-mpeg" }, { ".ani", "application/octet-stream" }, { ".apk", "application/vnd.android.package-archive" }, { ".asc", "text/plain" }, { ".asd", "application/astound" }, { ".asf", "video/x-ms-asf" }, { ".asn", "application/astound" }, { ".asp", "application/x-asap" }, { ".asr", "video/x-ms-asf" }, { ".asx", "video/x-ms-asf" }, { ".au", "audio/basic" }, { ".avb", "application/octet-stream" }, { ".avi", "video/x-msvideo" }, { ".awb", "audio/amr-wb" }, { ".axs", "application/olescript" }, { ".bas", "text/plain" }, { ".bcpio", "application/x-bcpio" }, { ".bin ", "application/octet-stream" }, { ".bld", "application/bld" }, { ".bld2", "application/bld2" }, { ".bmp", "image/bmp" }, { ".bpk", "application/octet-stream" }, { ".bz2", "application/x-bzip2" }, { ".c", "text/plain" }, { ".cal", "image/x-cals" }, { ".cat", "application/vnd.ms-pkiseccat" }, { ".ccn", "application/x-cnc" }, { ".cco", "application/x-cocoa" }, { ".cdf", "application/x-cdf" }, { ".cer", "application/x-x509-ca-cert" }, { ".cgi", "magnus-internal/cgi" }, { ".chat", "application/x-chat" }, { ".class", "application/octet-stream" }, { ".clp", "application/x-msclip" }, { ".cmx", "image/x-cmx" }, { ".co", "application/x-cult3d-object" }, { ".cod", "image/cis-cod" }, { ".conf", "text/plain" }, { ".cpio", "application/x-cpio" }, { ".cpp", "text/plain" }, { ".cpt", "application/mac-compactpro" }, { ".crd", "application/x-mscardfile" }, { ".crl", "application/pkix-crl" }, { ".crt", "application/x-x509-ca-cert" }, { ".csh", "application/x-csh" }, { ".csm", "chemical/x-csml" }, { ".csml", "chemical/x-csml" }, { ".css", "text/css" }, { ".cur", "application/octet-stream" }, { ".dcm", "x-lml/x-evm" }, { ".dcr", "application/x-director" }, { ".dcx", "image/x-dcx" }, { ".der", "application/x-x509-ca-cert" }, { ".dhtml", "text/html" }, { ".dir", "application/x-director" }, { ".dll", "application/x-msdownload" }, { ".dmg", "application/octet-stream" }, { ".dms", "application/octet-stream" }, { ".doc", "application/msword" }, { ".docx", "application/vnd.openxmlformats-officedocument.wordprocessingml.document" }, { ".dot", "application/msword" }, { ".dvi", "application/x-dvi" }, { ".dwf", "drawing/x-dwf" }, { ".dwg", "application/x-autocad" }, { ".dxf", "application/x-autocad" }, { ".dxr", "application/x-director" }, { ".ebk", "application/x-expandedbook" }, { ".emb", "chemical/x-embl-dl-nucleotide" }, { ".embl", "chemical/x-embl-dl-nucleotide" }, { ".eps", "application/postscript" }, { ".epub", "application/epub+zip" }, { ".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/envoy" }, { ".exe", "application/octet-stream" }, { ".fh4", "image/x-freehand" }, { ".fh5", "image/x-freehand" }, { ".fhc", "image/x-freehand" }, { ".fif", "application/fractals" }, { ".flr", "x-world/x-vrml" }, { ".flv", "flv-application/octet-stream" }, { ".fm", "application/x-maker" }, { ".fpx", "image/x-fpx" }, { ".fvi", "video/isivideo" }, { ".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", "text/plain" }, { ".hdf", "application/x-hdf" }, { ".hdm", "text/x-hdml" }, { ".hdml", "text/x-hdml" }, { ".hlp", "application/winhlp" }, { ".hqx", "application/mac-binhex40" }, { ".hta", "application/hta" }, { ".htc", "text/x-component" }, { ".htm", "text/html" }, { ".html", "text/html" }, { ".hts", "text/html" }, { ".htt", "text/webviewhtml" }, { ".ice", "x-conference/x-cooltalk" }, { ".ico", "image/x-icon" }, { ".ief", "image/ief" }, { ".ifm", "image/gif" }, { ".ifs", "image/ifs" }, { ".iii", "application/x-iphone" }, { ".imy", "audio/melody" }, { ".ins", "application/x-internet-signup" }, { ".ips", "application/x-ipscript" }, { ".ipx", "application/x-ipix" }, { ".isp", "application/x-internet-signup" }, { ".it", "audio/x-mod" }, { ".itz", "audio/x-mod" }, { ".ivr", "i-world/i-vrml" }, { ".j2k", "image/j2k" }, { ".jad", "text/vnd.sun.j2me.app-descriptor" }, { ".jam", "application/x-jam" }, { ".jar", "application/java-archive" }, { ".java", "text/plain" }, { ".jfif", "image/pipeg" }, { ".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" }, { ".kjx", "application/x-kjx" }, { ".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" }, { ".log", "text/plain" }, { ".lsf", "video/x-la-asf" }, { ".lsx", "video/x-la-asf" }, { ".lzh", "application/octet-stream" }, { ".m13", "application/x-msmediaview" }, { ".m14", "application/x-msmediaview" }, { ".m15", "audio/x-mod" }, { ".m3u", "audio/x-mpegurl" }, { ".m3url", "audio/x-mpegurl" }, { ".m4a", "audio/mp4a-latm" }, { ".m4b", "audio/mp4a-latm" }, { ".m4p", "audio/mp4a-latm" }, { ".m4u", "video/vnd.mpegurl" }, { ".m4v", "video/x-m4v" }, { ".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" }, { ".mht", "message/rfc822" }, { ".mhtml", "message/rfc822" }, { ".mi", "application/x-mif" }, { ".mid", "audio/mid" }, { ".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", "video/mpeg" }, { ".mp3", "audio/mpeg" }, { ".mp4", "video/mp4" }, { ".mpa", "video/mpeg" }, { ".mpc", "application/vnd.mpohun.certificate" }, { ".mpe", "video/mpeg" }, { ".mpeg", "video/mpeg" }, { ".mpg", "video/mpeg" }, { ".mpg4", "video/mp4" }, { ".mpga", "audio/mpeg" }, { ".mpn", "application/vnd.mophun.application" }, { ".mpp", "application/vnd.ms-project" }, { ".mps", "application/x-mapserver" }, { ".mpv2", "video/mpeg" }, { ".mrl", "text/x-mrml" }, { ".mrm", "application/x-mrm" }, { ".ms", "application/x-troff-ms" }, { ".msg", "application/vnd.ms-outlook" }, { ".mts", "application/metastream" }, { ".mtx", "application/metastream" }, { ".mtz", "application/metastream" }, { ".mvb", "application/x-msmediaview" }, { ".mzv", "application/metastream" }, { ".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" }, { ".nws", "message/rfc822" }, { ".oda", "application/oda" }, { ".ogg", "audio/ogg" }, { ".oom", "application/x-AtlasMate-Plugin" }, { ".p10", "application/pkcs10" }, { ".p12", "application/x-pkcs12" }, { ".p7b", "application/x-pkcs7-certificates" }, { ".p7c", "application/x-pkcs7-mime" }, { ".p7m", "application/x-pkcs7-mime" }, { ".p7r", "application/x-pkcs7-certreqresp" }, { ".p7s", "application/x-pkcs7-signature" }, { ".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" }, { ".pfx", "application/x-pkcs12" }, { ".pgm", "image/x-portable-graymap" }, { ".pict", "image/x-pict" }, { ".pko", "application/ynd.ms-pkipko" }, { ".pm", "application/x-perl" }, { ".pma", "application/x-perfmon" }, { ".pmc", "application/x-perfmon" }, { ".pmd", "application/x-pmd" }, { ".pml", "application/x-perfmon" }, { ".pmr", "application/x-perfmon" }, { ".pmw", "application/x-perfmon" }, { ".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" }, { ".pptx", "application/vnd.openxmlformats-officedocument.presentationml.presentation" }, { ".pqf", "application/x-cprplayer" }, { ".pqi", "application/cprplayer" }, { ".prc", "application/x-prc" }, { ".prf", "application/pics-rules" }, { ".prop", "text/plain" }, { ".proxy", "application/x-ns-proxy-autoconfig" }, { ".ps", "application/postscript" }, { ".ptlk", "application/listenup" }, { ".pub", "application/x-mspublisher" }, { ".pvx", "video/x-pv-pvx" }, { ".qcp", "audio/vnd.qcelp" }, { ".qt", "video/quicktime" }, { ".qti", "image/x-quicktime" }, { ".qtif", "image/x-quicktime" }, { ".r3t", "text/vnd.rn-realtext3d" }, { ".ra", "audio/x-pn-realaudio" }, { ".ram", "audio/x-pn-realaudio" }, { ".rar", "application/octet-stream" }, { ".ras", "image/x-cmu-raster" }, { ".rc", "text/plain" }, { ".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" }, { ".rmi", "audio/mid" }, { ".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" }, { ".s3m", "audio/x-mod" }, { ".s3z", "audio/x-mod" }, { ".sca", "application/x-supercard" }, { ".scd", "application/x-msschedule" }, { ".sct", "text/scriptlet" }, { ".sdf", "application/e-score" }, { ".sea", "application/x-stuffit" }, { ".setpay", "application/set-payment-initiation" }, { ".setreg", "application/set-registration-initiation" }, { ".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", "application/x-pkcs7-certificates" }, { ".spl", "application/futuresplash" }, { ".spr", "application/x-sprite" }, { ".sprite", "application/x-sprite" }, { ".sdp", "application/sdp" }, { ".spt", "application/x-spt" }, { ".src", "application/x-wais-source" }, { ".sst", "application/vnd.ms-pkicertstore" }, { ".stk", "application/hyperstudio" }, { ".stl", "application/vnd.ms-pkistl" }, { ".stm", "text/html" }, { ".svg", "image/svg+xml" }, { ".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", "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-compressed" }, { ".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" }, { ".uls", "text/iuls" }, { ".ult", "audio/x-mod" }, { ".ustar", "application/x-ustar" }, { ".uu", "application/x-uuencode" }, { ".uue", "application/x-uuencode" }, { ".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/voxware" }, { ".vqe", "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" }, { ".wav", "audio/x-wav" }, { ".wax", "audio/x-ms-wax" }, { ".wbmp", "image/vnd.wap.wbmp" }, { ".wcm", "application/vnd.ms-works" }, { ".wdb", "application/vnd.ms-works" }, { ".web", "application/vnd.xara" }, { ".wi", "image/wavelet" }, { ".wis", "application/x-InstallShield" }, { ".wks", "application/vnd.ms-works" }, { ".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" }, { ".wps", "application/vnd.ms-works" }, { ".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/wavelet" }, { ".wvx", "video/x-ms-wvx" }, { ".wxl", "application/x-wxl" }, { ".x-gzip", "application/x-gzip" }, { ".xaf", "x-world/x-vrml" }, { ".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" }, { ".xlsx", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" }, { ".xlt", "application/vnd.ms-excel" }, { ".xlw", "application/vnd.ms-excel" }, { ".xm", "audio/x-mod" }, { ".xml", "text/plain" }, { ".xml", "application/xml" }, { ".xmz", "audio/x-mod" }, { ".xof", "x-world/x-vrml" }, { ".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" }, { ".yz1", "application/x-yz1" }, { ".z", "application/x-compress" }, { ".zac", "application/x-zaurus-zac" }, { ".zip", "application/zip" }, { ".json", "application/json" } }; /** * 根据文件后缀名获得对应的MIME类型。 * @param file */ public static String getMIMEType(File file) { String type = "*/*"; String fName = file.getName(); // 获取后缀名前的分隔符"."在fName中的位置。 int dotIndex = fName.lastIndexOf("."); if (dotIndex < 0) { return type; } /* 获取文件的后缀名 */ String end = fName.substring(dotIndex, fName.length()).toLowerCase(); if (end == "") return type; // 在MIME和文件类型的匹配表中找到对应的MIME类型。 for (int i = 0; i < MIME_MapTable.length; i++) { if (end.equals(MIME_MapTable[i][0])) type = MIME_MapTable[i][1]; } return type; } public static void main(String[] args) { //下面输出为：application/vnd.android.package-archive System.out.println(MimeTest.getMIMEType(new File("C:\\oyp.apk"))); }}==================================================================================================
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