122

Saya mencari di antara pustaka standar (seperti apache commons, jax, jboss, javax) untuk antarmuka atau enum yang mencantumkan nilai dari semua tipe mime standar (alias tipe konten).

Antarmuka ini tidak boleh dibebani dengan terlalu dalam dengan kelas-kelas lain yang akan menyulitkan untuk menyertakan seluruh kelompok sebagai kode sumber gwt.

sebagai contoh

interface ContentType{
  String JSON = "Application/JSON";
  blah ... blah ...
}

atau,

enum ContentType{
  JSON("Application/JSON"),
  blah ... blah ...
}

— Geek yang Terberkati
sumber

1

Saya kira Anda sudah melihat Apache Sling? sling.apache.org/site/mime-type-support-commonsmime.html

— Jonathan Spooner

68

Perpustakaan jambu biji

Kami memiliki jambu kelas untuk ini: com.google.common.net.MediaType.

Itu dirilis dengan Guava 12 seperti yang dinyatakan dalam kode sumber dan dalam Masalah 823 . Sumber juga tersedia.

— Fabian Barney
sumber

Jika Anda mencari pemetaan jenis mime dengan ekstensi (seperti saya dulu), periksa MimeTypes yang saya tulis beberapa jam yang lalu karena perlu.

— Amr Mostafa

5

Sayang sekali tidak ada konstanta String yang ditentukan com.google.common.net.MediaType, karena MediaType.toString()bukan konstanta waktu kompilasi dan karena itu tidak dapat digunakan dalam anotasi

— Markus Pscheidt

Ini sebenarnya adalah pencacahan jenis media MIME. Solusi lainnya tidak.

— Stuart McIntyre

94

Dari https://docs.oracle.com/javaee/7/api/javax/ws/rs/core/MediaType.html :

staticjava.lang.String APPLICATION_ATOM_XML             "application/atom+xml"
staticMediaType        APPLICATION_ATOM_XML_TYPE        "application/atom+xml"
staticjava.lang.String APPLICATION_FORM_URLENCODED      "application/x-www-form-urlencoded"
staticMediaType        APPLICATION_FORM_URLENCODED_TYPE "application/x-www-form-urlencoded"
staticjava.lang.String APPLICATION_JSON                 "application/json"
staticMediaType        APPLICATION_JSON_TYPE            "application/json"
staticjava.lang.String APPLICATION_OCTET_STREAM         "application/octet-stream"
staticMediaType        APPLICATION_OCTET_STREAM_TYPE    "application/octet-stream"
staticjava.lang.String APPLICATION_SVG_XML              "application/svg+xml"
staticMediaType        APPLICATION_SVG_XML_TYPE         "application/svg+xml"
staticjava.lang.String APPLICATION_XHTML_XML            "application/xhtml+xml"
staticMediaType        APPLICATION_XHTML_XML_TYPE       "application/xhtml+xml"
staticjava.lang.String APPLICATION_XML                  "application/xml"
staticMediaType        APPLICATION_XML_TYPE             "application/xml"
staticjava.lang.String MEDIA_TYPE_WILDCARD              The value of a type or subtype wildcard: "*"
staticjava.lang.String MULTIPART_FORM_DATA              "multipart/form-data"
staticMediaType        MULTIPART_FORM_DATA_TYPE         "multipart/form-data"
staticjava.lang.String TEXT_HTML                        "text/html"
staticMediaType        TEXT_HTML_TYPE                   "text/html"
staticjava.lang.String TEXT_PLAIN                       "text/plain"
staticMediaType        TEXT_PLAIN_TYPE                  "text/plain"
staticjava.lang.String TEXT_XML                         "text/xml"
staticMediaType        TEXT_XML_TYPE                    "text/xml"
staticjava.lang.String WILDCARD                         "*/*"
staticMediaType        WILDCARD_TYPE                    "*/*"

— Ray Tayek
sumber

68

Jika Anda menggunakan Spring Framework maka ada kelas MediaType untuk tipe konten umum:

MediaType.TEXT_HTML 
MediaType.TEXT_PLAIN 
MediaType.TEXT_XML 
MediaType.APPLICATION_JSON 
MediaType.IMAGE_JPEG 
...

— Andrejs
sumber

7

Ini bekerja dengan baik untuk saya tetapi saya perlu menggunakan bagian MediaType.foo_VALUE. Setiap kelas memiliki _VALUE yang sesuai yang merupakan String.

— Jazzepi

Saya memang meminta, bagian dalam / eunum tidak boleh dibebani terlalu dalam dengan kelas lain, sehingga tidak mungkin digunakan di GWT. GWT memerlukan kode sumber, bukan kode byte, karena GWT adalah transpiler dari Java ke JavaScript. Framework Spring tidak dapat digunakan di sisi browser GWT.

— Blessed Geek

2

Ini berfungsi dengan baik sampai Anda membutuhkan konstanta untuk "application / zip". Kelas ini tidak memilikiAPPLICATION_ZIP

— naXa

18

Sekarang juga ada kelas org.apache.http.entity.ContentTypedari paket org.apache.httpcomponents.httpcore, mulai dari 4.2 sampai.

— Meluap
sumber

Terima kasih, tapi javadoc untuk kelas itu mengatakan telah ditambahkan di v4.2. Saya dapat menjamin bahwa ini tidak ada di v4.0.1, yang akan saya gunakan untuk saat ini.

— John S

Saya menggunakan ini sampai saya membutuhkan application/pdftipe pantomim. Sayangnya, kelas ini tidak memiliki konstanta untuk pdf :(

— Dmitriy Popov

14

javax.ws.rs.core.MediaTypedari JAX-RS

— François Wauquier
sumber

5

Java 7 untuk menyelamatkan!

Anda bisa meneruskan file atau nama file dan itu akan mengembalikan tipe MIME.

String mimeType = MimetypesFileTypeMap
    .getDefaultFileTypeMap()
    .getContentType(attachment.getFileName());

http://docs.oracle.com/javase/7/docs/api/javax/activation/MimetypesFileTypeMap.html

— Max
sumber

7

Ini tidak menyebutkan jenis MIME yang ada.

— 2rs2t

4

Ada juga MediaTypekelas di androidannotations jika Anda ingin menggunakan dengan android! Lihat disini .

— sakis kaliakoudas
sumber

1

Jika Anda menggunakan android, Anda memiliki beberapa pilihan, dengan yang pertama adalah semacam "enum":

HTTP(yang sudah tidak digunakan lagi di API 22), misalnya
HTTP.PLAIN_TEXT_TYPEatau
MimeTypeMap, misalnya
final String mime = MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension);
Lihat juga FileProvider.getType().
URLConnection yang menyediakan metode berikut:

Sebagai contoh

@Override
public String getType(Uri uri) {
    return URLConnection.getFileNameMap().getContentTypeFor(
            uri.getLastPathSegment());
}

— schnatterer
sumber

1

Seperti yang ditunjukkan oleh jawaban di atas, Anda dapat menggunakan javax.ws.rs.core.MediaTypeyang memiliki konstanta yang diperlukan.

Saya juga ingin membagikan tautan yang sangat keren dan praktis yang saya temukan yang memberikan referensi ke semua konstanta Javax di satu tempat - https://docs.oracle.com/javaee/7/api/constant-values.html .

— Anurag
sumber

-2

Saya menyelesaikan ini dengan kelas statis:

@SuppressWarnings("serial")
public class MimeTypes {

    private static final HashMap<String, String> mimeTypes;

    static {
        mimeTypes = new HashMap<String, String>() {
            {
                put(".323", "text/h323");
                put(".3g2", "video/3gpp2");
                put(".3gp", "video/3gpp");
                put(".3gp2", "video/3gpp2");
                put(".3gpp", "video/3gpp");
                put(".7z", "application/x-7z-compressed");
                put(".aa", "audio/audible");
                put(".AAC", "audio/aac");
                put(".aaf", "application/octet-stream");
                put(".aax", "audio/vnd.audible.aax");
                put(".ac3", "audio/ac3");
                put(".aca", "application/octet-stream");
                put(".accda", "application/msaccess.addin");
                put(".accdb", "application/msaccess");
                put(".accdc", "application/msaccess.cab");
                put(".accde", "application/msaccess");
                put(".accdr", "application/msaccess.runtime");
                put(".accdt", "application/msaccess");
                put(".accdw", "application/msaccess.webapplication");
                put(".accft", "application/msaccess.ftemplate");
                put(".acx", "application/internet-property-stream");
                put(".AddIn", "text/xml");
                put(".ade", "application/msaccess");
                put(".adobebridge", "application/x-bridge-url");
                put(".adp", "application/msaccess");
                put(".ADT", "audio/vnd.dlna.adts");
                put(".ADTS", "audio/aac");
                put(".afm", "application/octet-stream");
                put(".ai", "application/postscript");
                put(".aif", "audio/x-aiff");
                put(".aifc", "audio/aiff");
                put(".aiff", "audio/aiff");
                put(".air", "application/vnd.adobe.air-application-installer-package+zip");
                put(".amc", "application/x-mpeg");
                put(".application", "application/x-ms-application");
                put(".art", "image/x-jg");
                put(".asa", "application/xml");
                put(".asax", "application/xml");
                put(".ascx", "application/xml");
                put(".asd", "application/octet-stream");
                put(".asf", "video/x-ms-asf");
                put(".ashx", "application/xml");
                put(".asi", "application/octet-stream");
                put(".asm", "text/plain");
                put(".asmx", "application/xml");
                put(".aspx", "application/xml");
                put(".asr", "video/x-ms-asf");
                put(".asx", "video/x-ms-asf");
                put(".atom", "application/atom+xml");
                put(".au", "audio/basic");
                put(".avi", "video/x-msvideo");
                put(".axs", "application/olescript");
                put(".bas", "text/plain");
                put(".bcpio", "application/x-bcpio");
                put(".bin", "application/octet-stream");
                put(".bmp", "image/bmp");
                put(".c", "text/plain");
                put(".cab", "application/octet-stream");
                put(".caf", "audio/x-caf");
                put(".calx", "application/vnd.ms-office.calx");
                put(".cat", "application/vnd.ms-pki.seccat");
                put(".cc", "text/plain");
                put(".cd", "text/plain");
                put(".cdda", "audio/aiff");
                put(".cdf", "application/x-cdf");
                put(".cer", "application/x-x509-ca-cert");
                put(".chm", "application/octet-stream");
                put(".class", "application/x-java-applet");
                put(".clp", "application/x-msclip");
                put(".cmx", "image/x-cmx");
                put(".cnf", "text/plain");
                put(".cod", "image/cis-cod");
                put(".config", "application/xml");
                put(".contact", "text/x-ms-contact");
                put(".coverage", "application/xml");
                put(".cpio", "application/x-cpio");
                put(".cpp", "text/plain");
                put(".crd", "application/x-mscardfile");
                put(".crl", "application/pkix-crl");
                put(".crt", "application/x-x509-ca-cert");
                put(".cs", "text/plain");
                put(".csdproj", "text/plain");
                put(".csh", "application/x-csh");
                put(".csproj", "text/plain");
                put(".css", "text/css");
                put(".csv", "text/csv");
                put(".cur", "application/octet-stream");
                put(".cxx", "text/plain");
                put(".dat", "application/octet-stream");
                put(".datasource", "application/xml");
                put(".dbproj", "text/plain");
                put(".dcr", "application/x-director");
                put(".def", "text/plain");
                put(".deploy", "application/octet-stream");
                put(".der", "application/x-x509-ca-cert");
                put(".dgml", "application/xml");
                put(".dib", "image/bmp");
                put(".dif", "video/x-dv");
                put(".dir", "application/x-director");
                put(".disco", "text/xml");
                put(".dll", "application/x-msdownload");
                put(".dll.config", "text/xml");
                put(".dlm", "text/dlm");
                put(".doc", "application/msword");
                put(".docm", "application/vnd.ms-word.document.macroEnabled.12");
                put(".docx", "application/vnd.openxmlformats-officedocument.wordprocessingml.document");
                put(".dot", "application/msword");
                put(".dotm", "application/vnd.ms-word.template.macroEnabled.12");
                put(".dotx", "application/vnd.openxmlformats-officedocument.wordprocessingml.template");
                put(".dsp", "application/octet-stream");
                put(".dsw", "text/plain");
                put(".dtd", "text/xml");
                put(".dtsConfig", "text/xml");
                put(".dv", "video/x-dv");
                put(".dvi", "application/x-dvi");
                put(".dwf", "drawing/x-dwf");
                put(".dwp", "application/octet-stream");
                put(".dxr", "application/x-director");
                put(".eml", "message/rfc822");
                put(".emz", "application/octet-stream");
                put(".eot", "application/octet-stream");
                put(".eps", "application/postscript");
                put(".etl", "application/etl");
                put(".etx", "text/x-setext");
                put(".evy", "application/envoy");
                put(".exe", "application/octet-stream");
                put(".exe.config", "text/xml");
                put(".fdf", "application/vnd.fdf");
                put(".fif", "application/fractals");
                put(".filters", "Application/xml");
                put(".fla", "application/octet-stream");
                put(".flr", "x-world/x-vrml");
                put(".flv", "video/x-flv");
                put(".fsscript", "application/fsharp-script");
                put(".fsx", "application/fsharp-script");
                put(".generictest", "application/xml");
                put(".gif", "image/gif");
                put(".group", "text/x-ms-group");
                put(".gsm", "audio/x-gsm");
                put(".gtar", "application/x-gtar");
                put(".gz", "application/x-gzip");
                put(".h", "text/plain");
                put(".hdf", "application/x-hdf");
                put(".hdml", "text/x-hdml");
                put(".hhc", "application/x-oleobject");
                put(".hhk", "application/octet-stream");
                put(".hhp", "application/octet-stream");
                put(".hlp", "application/winhlp");
                put(".hpp", "text/plain");
                put(".hqx", "application/mac-binhex40");
                put(".hta", "application/hta");
                put(".htc", "text/x-component");
                put(".htm", "text/html");
                put(".html", "text/html");
                put(".htt", "text/webviewhtml");
                put(".hxa", "application/xml");
                put(".hxc", "application/xml");
                put(".hxd", "application/octet-stream");
                put(".hxe", "application/xml");
                put(".hxf", "application/xml");
                put(".hxh", "application/octet-stream");
                put(".hxi", "application/octet-stream");
                put(".hxk", "application/xml");
                put(".hxq", "application/octet-stream");
                put(".hxr", "application/octet-stream");
                put(".hxs", "application/octet-stream");
                put(".hxt", "text/html");
                put(".hxv", "application/xml");
                put(".hxw", "application/octet-stream");
                put(".hxx", "text/plain");
                put(".i", "text/plain");
                put(".ico", "image/x-icon");
                put(".ics", "application/octet-stream");
                put(".idl", "text/plain");
                put(".ief", "image/ief");
                put(".iii", "application/x-iphone");
                put(".inc", "text/plain");
                put(".inf", "application/octet-stream");
                put(".inl", "text/plain");
                put(".ins", "application/x-internet-signup");
                put(".ipa", "application/x-itunes-ipa");
                put(".ipg", "application/x-itunes-ipg");
                put(".ipproj", "text/plain");
                put(".ipsw", "application/x-itunes-ipsw");
                put(".iqy", "text/x-ms-iqy");
                put(".isp", "application/x-internet-signup");
                put(".ite", "application/x-itunes-ite");
                put(".itlp", "application/x-itunes-itlp");
                put(".itms", "application/x-itunes-itms");
                put(".itpc", "application/x-itunes-itpc");
                put(".IVF", "video/x-ivf");
                put(".jar", "application/java-archive");
                put(".java", "application/octet-stream");
                put(".jck", "application/liquidmotion");
                put(".jcz", "application/liquidmotion");
                put(".jfif", "image/pjpeg");
                put(".jnlp", "application/x-java-jnlp-file");
                put(".jpb", "application/octet-stream");
                put(".jpe", "image/jpeg");
                put(".jpeg", "image/jpeg");
                put(".jpg", "image/jpeg");
                put(".js", "application/x-javascript");
                put(".json", "application/json");
                put(".jsx", "text/jscript");
                put(".jsxbin", "text/plain");
                put(".latex", "application/x-latex");
                put(".library-ms", "application/windows-library+xml");
                put(".lit", "application/x-ms-reader");
                put(".loadtest", "application/xml");
                put(".lpk", "application/octet-stream");
                put(".lsf", "video/x-la-asf");
                put(".lst", "text/plain");
                put(".lsx", "video/x-la-asf");
                put(".lzh", "application/octet-stream");
                put(".m13", "application/x-msmediaview");
                put(".m14", "application/x-msmediaview");
                put(".m1v", "video/mpeg");
                put(".m2t", "video/vnd.dlna.mpeg-tts");
                put(".m2ts", "video/vnd.dlna.mpeg-tts");
                put(".m2v", "video/mpeg");
                put(".m3u", "audio/x-mpegurl");
                put(".m3u8", "audio/x-mpegurl");
                put(".m4a", "audio/m4a");
                put(".m4b", "audio/m4b");
                put(".m4p", "audio/m4p");
                put(".m4r", "audio/x-m4r");
                put(".m4v", "video/x-m4v");
                put(".mac", "image/x-macpaint");
                put(".mak", "text/plain");
                put(".man", "application/x-troff-man");
                put(".manifest", "application/x-ms-manifest");
                put(".map", "text/plain");
                put(".master", "application/xml");
                put(".mda", "application/msaccess");
                put(".mdb", "application/x-msaccess");
                put(".mde", "application/msaccess");
                put(".mdp", "application/octet-stream");
                put(".me", "application/x-troff-me");
                put(".mfp", "application/x-shockwave-flash");
                put(".mht", "message/rfc822");
                put(".mhtml", "message/rfc822");
                put(".mid", "audio/mid");
                put(".midi", "audio/mid");
                put(".mix", "application/octet-stream");
                put(".mk", "text/plain");
                put(".mmf", "application/x-smaf");
                put(".mno", "text/xml");
                put(".mny", "application/x-msmoney");
                put(".mod", "video/mpeg");
                put(".mov", "video/quicktime");
                put(".movie", "video/x-sgi-movie");
                put(".mp2", "video/mpeg");
                put(".mp2v", "video/mpeg");
                put(".mp3", "audio/mpeg");
                put(".mp4", "video/mp4");
                put(".mp4v", "video/mp4");
                put(".mpa", "video/mpeg");
                put(".mpe", "video/mpeg");
                put(".mpeg", "video/mpeg");
                put(".mpf", "application/vnd.ms-mediapackage");
                put(".mpg", "video/mpeg");
                put(".mpp", "application/vnd.ms-project");
                put(".mpv2", "video/mpeg");
                put(".mqv", "video/quicktime");
                put(".ms", "application/x-troff-ms");
                put(".msi", "application/octet-stream");
                put(".mso", "application/octet-stream");
                put(".mts", "video/vnd.dlna.mpeg-tts");
                put(".mtx", "application/xml");
                put(".mvb", "application/x-msmediaview");
                put(".mvc", "application/x-miva-compiled");
                put(".mxp", "application/x-mmxp");
                put(".nc", "application/x-netcdf");
                put(".nsc", "video/x-ms-asf");
                put(".nws", "message/rfc822");
                put(".ocx", "application/octet-stream");
                put(".oda", "application/oda");
                put(".odc", "text/x-ms-odc");
                put(".odh", "text/plain");
                put(".odl", "text/plain");
                put(".odp", "application/vnd.oasis.opendocument.presentation");
                put(".ods", "application/oleobject");
                put(".odt", "application/vnd.oasis.opendocument.text");
                put(".one", "application/onenote");
                put(".onea", "application/onenote");
                put(".onepkg", "application/onenote");
                put(".onetmp", "application/onenote");
                put(".onetoc", "application/onenote");
                put(".onetoc2", "application/onenote");
                put(".orderedtest", "application/xml");
                put(".osdx", "application/opensearchdescription+xml");
                put(".p10", "application/pkcs10");
                put(".p12", "application/x-pkcs12");
                put(".p7b", "application/x-pkcs7-certificates");
                put(".p7c", "application/pkcs7-mime");
                put(".p7m", "application/pkcs7-mime");
                put(".p7r", "application/x-pkcs7-certreqresp");
                put(".p7s", "application/pkcs7-signature");
                put(".pbm", "image/x-portable-bitmap");
                put(".pcast", "application/x-podcast");
                put(".pct", "image/pict");
                put(".pcx", "application/octet-stream");
                put(".pcz", "application/octet-stream");
                put(".pdf", "application/pdf");
                put(".pfb", "application/octet-stream");
                put(".pfm", "application/octet-stream");
                put(".pfx", "application/x-pkcs12");
                put(".pgm", "image/x-portable-graymap");
                put(".pic", "image/pict");
                put(".pict", "image/pict");
                put(".pkgdef", "text/plain");
                put(".pkgundef", "text/plain");
                put(".pko", "application/vnd.ms-pki.pko");
                put(".pls", "audio/scpls");
                put(".pma", "application/x-perfmon");
                put(".pmc", "application/x-perfmon");
                put(".pml", "application/x-perfmon");
                put(".pmr", "application/x-perfmon");
                put(".pmw", "application/x-perfmon");
                put(".png", "image/png");
                put(".pnm", "image/x-portable-anymap");
                put(".pnt", "image/x-macpaint");
                put(".pntg", "image/x-macpaint");
                put(".pnz", "image/png");
                put(".pot", "application/vnd.ms-powerpoint");
                put(".potm", "application/vnd.ms-powerpoint.template.macroEnabled.12");
                put(".potx", "application/vnd.openxmlformats-officedocument.presentationml.template");
                put(".ppa", "application/vnd.ms-powerpoint");
                put(".ppam", "application/vnd.ms-powerpoint.addin.macroEnabled.12");
                put(".ppm", "image/x-portable-pixmap");
                put(".pps", "application/vnd.ms-powerpoint");
                put(".ppsm", "application/vnd.ms-powerpoint.slideshow.macroEnabled.12");
                put(".ppsx", "application/vnd.openxmlformats-officedocument.presentationml.slideshow");
                put(".ppt", "application/vnd.ms-powerpoint");
                put(".pptm", "application/vnd.ms-powerpoint.presentation.macroEnabled.12");
                put(".pptx", "application/vnd.openxmlformats-officedocument.presentationml.presentation");
                put(".prf", "application/pics-rules");
                put(".prm", "application/octet-stream");
                put(".prx", "application/octet-stream");
                put(".ps", "application/postscript");
                put(".psc1", "application/PowerShell");
                put(".psd", "application/octet-stream");
                put(".psess", "application/xml");
                put(".psm", "application/octet-stream");
                put(".psp", "application/octet-stream");
                put(".pub", "application/x-mspublisher");
                put(".pwz", "application/vnd.ms-powerpoint");
                put(".qht", "text/x-html-insertion");
                put(".qhtm", "text/x-html-insertion");
                put(".qt", "video/quicktime");
                put(".qti", "image/x-quicktime");
                put(".qtif", "image/x-quicktime");
                put(".qtl", "application/x-quicktimeplayer");
                put(".qxd", "application/octet-stream");
                put(".ra", "audio/x-pn-realaudio");
                put(".ram", "audio/x-pn-realaudio");
                put(".rar", "application/octet-stream");
                put(".ras", "image/x-cmu-raster");
                put(".rat", "application/rat-file");
                put(".rc", "text/plain");
                put(".rc2", "text/plain");
                put(".rct", "text/plain");
                put(".rdlc", "application/xml");
                put(".resx", "application/xml");
                put(".rf", "image/vnd.rn-realflash");
                put(".rgb", "image/x-rgb");
                put(".rgs", "text/plain");
                put(".rm", "application/vnd.rn-realmedia");
                put(".rmi", "audio/mid");
                put(".rmp", "application/vnd.rn-rn_music_package");
                put(".roff", "application/x-troff");
                put(".rpm", "audio/x-pn-realaudio-plugin");
                put(".rqy", "text/x-ms-rqy");
                put(".rtf", "application/rtf");
                put(".rtx", "text/richtext");
                put(".ruleset", "application/xml");
                put(".s", "text/plain");
                put(".safariextz", "application/x-safari-safariextz");
                put(".scd", "application/x-msschedule");
                put(".sct", "text/scriptlet");
                put(".sd2", "audio/x-sd2");
                put(".sdp", "application/sdp");
                put(".sea", "application/octet-stream");
                put(".searchConnector-ms", "application/windows-search-connector+xml");
                put(".setpay", "application/set-payment-initiation");
                put(".setreg", "application/set-registration-initiation");
                put(".settings", "application/xml");
                put(".sgimb", "application/x-sgimb");
                put(".sgml", "text/sgml");
                put(".sh", "application/x-sh");
                put(".shar", "application/x-shar");
                put(".shtml", "text/html");
                put(".sit", "application/x-stuffit");
                put(".sitemap", "application/xml");
                put(".skin", "application/xml");
                put(".sldm", "application/vnd.ms-powerpoint.slide.macroEnabled.12");
                put(".sldx", "application/vnd.openxmlformats-officedocument.presentationml.slide");
                put(".slk", "application/vnd.ms-excel");
                put(".sln", "text/plain");
                put(".slupkg-ms", "application/x-ms-license");
                put(".smd", "audio/x-smd");
                put(".smi", "application/octet-stream");
                put(".smx", "audio/x-smd");
                put(".smz", "audio/x-smd");
                put(".snd", "audio/basic");
                put(".snippet", "application/xml");
                put(".snp", "application/octet-stream");
                put(".sol", "text/plain");
                put(".sor", "text/plain");
                put(".spc", "application/x-pkcs7-certificates");
                put(".spl", "application/futuresplash");
                put(".src", "application/x-wais-source");
                put(".srf", "text/plain");
                put(".SSISDeploymentManifest", "text/xml");
                put(".ssm", "application/streamingmedia");
                put(".sst", "application/vnd.ms-pki.certstore");
                put(".stl", "application/vnd.ms-pki.stl");
                put(".sv4cpio", "application/x-sv4cpio");
                put(".sv4crc", "application/x-sv4crc");
                put(".svc", "application/xml");
                put(".swf", "application/x-shockwave-flash");
                put(".t", "application/x-troff");
                put(".tar", "application/x-tar");
                put(".tcl", "application/x-tcl");
                put(".testrunconfig", "application/xml");
                put(".testsettings", "application/xml");
                put(".tex", "application/x-tex");
                put(".texi", "application/x-texinfo");
                put(".texinfo", "application/x-texinfo");
                put(".tgz", "application/x-compressed");
                put(".thmx", "application/vnd.ms-officetheme");
                put(".thn", "application/octet-stream");
                put(".tif", "image/tiff");
                put(".tiff", "image/tiff");
                put(".tlh", "text/plain");
                put(".tli", "text/plain");
                put(".toc", "application/octet-stream");
                put(".tr", "application/x-troff");
                put(".trm", "application/x-msterminal");
                put(".trx", "application/xml");
                put(".ts", "video/vnd.dlna.mpeg-tts");
                put(".tsv", "text/tab-separated-values");
                put(".ttf", "application/octet-stream");
                put(".tts", "video/vnd.dlna.mpeg-tts");
                put(".txt", "text/plain");
                put(".u32", "application/octet-stream");
                put(".uls", "text/iuls");
                put(".user", "text/plain");
                put(".ustar", "application/x-ustar");
                put(".vb", "text/plain");
                put(".vbdproj", "text/plain");
                put(".vbk", "video/mpeg");
                put(".vbproj", "text/plain");
                put(".vbs", "text/vbscript");
                put(".vcf", "text/x-vcard");
                put(".vcproj", "Application/xml");
                put(".vcs", "text/plain");
                put(".vcxproj", "Application/xml");
                put(".vddproj", "text/plain");
                put(".vdp", "text/plain");
                put(".vdproj", "text/plain");
                put(".vdx", "application/vnd.ms-visio.viewer");
                put(".vml", "text/xml");
                put(".vscontent", "application/xml");
                put(".vsct", "text/xml");
                put(".vsd", "application/vnd.visio");
                put(".vsi", "application/ms-vsi");
                put(".vsix", "application/vsix");
                put(".vsixlangpack", "text/xml");
                put(".vsixmanifest", "text/xml");
                put(".vsmdi", "application/xml");
                put(".vspscc", "text/plain");
                put(".vss", "application/vnd.visio");
                put(".vsscc", "text/plain");
                put(".vssettings", "text/xml");
                put(".vssscc", "text/plain");
                put(".vst", "application/vnd.visio");
                put(".vstemplate", "text/xml");
                put(".vsto", "application/x-ms-vsto");
                put(".vsw", "application/vnd.visio");
                put(".vsx", "application/vnd.visio");
                put(".vtx", "application/vnd.visio");
                put(".wav", "audio/wav");
                put(".wave", "audio/wav");
                put(".wax", "audio/x-ms-wax");
                put(".wbk", "application/msword");
                put(".wbmp", "image/vnd.wap.wbmp");
                put(".wcm", "application/vnd.ms-works");
                put(".wdb", "application/vnd.ms-works");
                put(".wdp", "image/vnd.ms-photo");
                put(".webarchive", "application/x-safari-webarchive");
                put(".webtest", "application/xml");
                put(".wiq", "application/xml");
                put(".wiz", "application/msword");
                put(".wks", "application/vnd.ms-works");
                put(".WLMP", "application/wlmoviemaker");
                put(".wlpginstall", "application/x-wlpg-detect");
                put(".wlpginstall3", "application/x-wlpg3-detect");
                put(".wm", "video/x-ms-wm");
                put(".wma", "audio/x-ms-wma");
                put(".wmd", "application/x-ms-wmd");
                put(".wmf", "application/x-msmetafile");
                put(".wml", "text/vnd.wap.wml");
                put(".wmlc", "application/vnd.wap.wmlc");
                put(".wmls", "text/vnd.wap.wmlscript");
                put(".wmlsc", "application/vnd.wap.wmlscriptc");
                put(".wmp", "video/x-ms-wmp");
                put(".wmv", "video/x-ms-wmv");
                put(".wmx", "video/x-ms-wmx");
                put(".wmz", "application/x-ms-wmz");
                put(".wpl", "application/vnd.ms-wpl");
                put(".wps", "application/vnd.ms-works");
                put(".wri", "application/x-mswrite");
                put(".wrl", "x-world/x-vrml");
                put(".wrz", "x-world/x-vrml");
                put(".wsc", "text/scriptlet");
                put(".wsdl", "text/xml");
                put(".wvx", "video/x-ms-wvx");
                put(".x", "application/directx");
                put(".xaf", "x-world/x-vrml");
                put(".xaml", "application/xaml+xml");
                put(".xap", "application/x-silverlight-app");
                put(".xbap", "application/x-ms-xbap");
                put(".xbm", "image/x-xbitmap");
                put(".xdr", "text/plain");
                put(".xht", "application/xhtml+xml");
                put(".xhtml", "application/xhtml+xml");
                put(".xla", "application/vnd.ms-excel");
                put(".xlam", "application/vnd.ms-excel.addin.macroEnabled.12");
                put(".xlc", "application/vnd.ms-excel");
                put(".xld", "application/vnd.ms-excel");
                put(".xlk", "application/vnd.ms-excel");
                put(".xll", "application/vnd.ms-excel");
                put(".xlm", "application/vnd.ms-excel");
                put(".xls", "application/vnd.ms-excel");
                put(".xlsb", "application/vnd.ms-excel.sheet.binary.macroEnabled.12");
                put(".xlsm", "application/vnd.ms-excel.sheet.macroEnabled.12");
                put(".xlsx", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
                put(".xlt", "application/vnd.ms-excel");
                put(".xltm", "application/vnd.ms-excel.template.macroEnabled.12");
                put(".xltx", "application/vnd.openxmlformats-officedocument.spreadsheetml.template");
                put(".xlw", "application/vnd.ms-excel");
                put(".xml", "text/xml");
                put(".xmta", "application/xml");
                put(".xof", "x-world/x-vrml");
                put(".XOML", "text/plain");
                put(".xpm", "image/x-xpixmap");
                put(".xps", "application/vnd.ms-xpsdocument");
                put(".xrm-ms", "text/xml");
                put(".xsc", "application/xml");
                put(".xsd", "text/xml");
                put(".xsf", "text/xml");
                put(".xsl", "text/xml");
                put(".xslt", "text/xml");
                put(".xsn", "application/octet-stream");
                put(".xss", "application/xml");
                put(".xtp", "application/octet-stream");
                put(".xwd", "image/x-xwindowdump");
                put(".z", "application/x-compress");
                put(".zip", "application/x-zip-compressed");
            }
        };
    }

    public static String getMimeType(String extension) {
        if (extension == null) {
            return null;
        }

        if (!extension.startsWith(".")) {
            extension = "." + extension.toLowerCase(Locale.getDefault());
        }

        String mime = mimeTypes.get(extension);

        return mime != null ? mime : "application/octet-stream";
    }
}

— Trboy
sumber

Saya suka solusi ini :), Apa itu: "pikirkan dua kali kode sekali", maaf saya sibuk coding.

— Gábor Csikós

-3

Seperti yang telah diposting di jawaban sebelumnya, tipe MIME yang paling umum dikonfigurasi di server web. Misalnya di tomcat conf / kami memiliki web.xml dengan konfigurasi MIME berikut:

   <mime-mapping>
      <extension>abs</extension>
      <mime-type>audio/x-mpeg</mime-type>
   </mime-mapping>
   <mime-mapping>
      <extension>ai</extension>
      <mime-type>application/postscript</mime-type>
   </mime-mapping>
   <mime-mapping>
      <extension>aif</extension>
      <mime-type>audio/x-aiff</mime-type>
   </mime-mapping>
...

Buat pendengar startup yang bekerja saat aplikasi web dimulai dan parsing file XML ini dan buat ENUMS untuk Anda dan ikat ke konteks servlet untuk berbagi downstream.

— Bimalesh Jha
sumber

3

Ini terdengar sangat rumit untuk persyaratan sederhana seperti memiliki daftar mimetype yang tersedia. Selain itu, mimetypes tidak akan banyak berubah, jadi mengapa Anda harus menguraikannya berulang kali? Itulah gunanya enum dan konstanta.

— Thomas Eizinger

Mengapa menemukan kembali roda ketika daftar sudah ada di server web. Mengapa membuat kode keras - cukup tulis parser xml sederhana untuk membaca nilai dan menyimpannya dalam cache sekali ketika server web dimulai. Besok, jika Anda perlu mendukung tipe MIME yang baru, server web Anda tetap perlu diperbarui dan dimulai ulang, Pendekatan parser membantu dalam situasi tersebut. Alih-alih mengubah di banyak tempat, cukup ubah konfigurasi server web.

— Bimalesh Jha

Jika Anda ingin mendukung jenis mime baru, kemungkinan besar Anda akan tetap menulis beberapa kode kustom karena tidak ada cara untuk menangani mimetype baru secara umum. (Kecuali Anda hanya meneruskannya ke sistem lain, dalam hal ini Anda tidak perlu menguraikannya juga.)

— Thomas Eizinger

Antarmuka / enum daftar konstanta tipe mime standar

Perpustakaan jambu biji