using System; using System.Collections; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace Yi.Framework.Common.Helper { public static class MimeHelper { // 通过自己定义一个静态类 // 将所有的Content Type都扔进去吧 // 调用的时候直接调用静态方法即可。 private static Hashtable _mimeMappingTable; private static void AddMimeMapping(string extension, string MimeType) { MimeHelper._mimeMappingTable.Add(extension, MimeType); } public static string GetMimeMapping(string FileName) { string text = null!; int num = FileName.LastIndexOf('.'); if (0 < num && num > FileName.LastIndexOf('\\')) { text = (string)MimeHelper._mimeMappingTable[FileName.Substring(num)]!; } if (text == null) { text = (string)MimeHelper._mimeMappingTable[".*"]!; } return text; } static MimeHelper() { MimeHelper._mimeMappingTable = new Hashtable(190, StringComparer.CurrentCultureIgnoreCase); MimeHelper.AddMimeMapping(".323", "text/h323"); MimeHelper.AddMimeMapping(".asx", "video/x-ms-asf"); MimeHelper.AddMimeMapping(".acx", "application/internet-property-stream"); MimeHelper.AddMimeMapping(".ai", "application/postscript"); MimeHelper.AddMimeMapping(".aif", "audio/x-aiff"); MimeHelper.AddMimeMapping(".aiff", "audio/aiff"); MimeHelper.AddMimeMapping(".axs", "application/olescript"); MimeHelper.AddMimeMapping(".aifc", "audio/aiff"); MimeHelper.AddMimeMapping(".asr", "video/x-ms-asf"); MimeHelper.AddMimeMapping(".avi", "video/x-msvideo"); MimeHelper.AddMimeMapping(".asf", "video/x-ms-asf"); MimeHelper.AddMimeMapping(".au", "audio/basic"); MimeHelper.AddMimeMapping(".application", "application/x-ms-application"); MimeHelper.AddMimeMapping(".bin", "application/octet-stream"); MimeHelper.AddMimeMapping(".bas", "text/plain"); MimeHelper.AddMimeMapping(".bcpio", "application/x-bcpio"); MimeHelper.AddMimeMapping(".bmp", "image/bmp"); MimeHelper.AddMimeMapping(".cdf", "application/x-cdf"); MimeHelper.AddMimeMapping(".cat", "application/vndms-pkiseccat"); MimeHelper.AddMimeMapping(".crt", "application/x-x509-ca-cert"); MimeHelper.AddMimeMapping(".c", "text/plain"); MimeHelper.AddMimeMapping(".css", "text/css"); MimeHelper.AddMimeMapping(".cer", "application/x-x509-ca-cert"); MimeHelper.AddMimeMapping(".crl", "application/pkix-crl"); MimeHelper.AddMimeMapping(".cmx", "image/x-cmx"); MimeHelper.AddMimeMapping(".csh", "application/x-csh"); MimeHelper.AddMimeMapping(".cod", "image/cis-cod"); MimeHelper.AddMimeMapping(".cpio", "application/x-cpio"); MimeHelper.AddMimeMapping(".clp", "application/x-msclip"); MimeHelper.AddMimeMapping(".crd", "application/x-mscardfile"); MimeHelper.AddMimeMapping(".deploy", "application/octet-stream"); MimeHelper.AddMimeMapping(".dll", "application/x-msdownload"); MimeHelper.AddMimeMapping(".dot", "application/msword"); MimeHelper.AddMimeMapping(".doc", "application/msword"); MimeHelper.AddMimeMapping(".dvi", "application/x-dvi"); MimeHelper.AddMimeMapping(".dir", "application/x-director"); MimeHelper.AddMimeMapping(".dxr", "application/x-director"); MimeHelper.AddMimeMapping(".der", "application/x-x509-ca-cert"); MimeHelper.AddMimeMapping(".dib", "image/bmp"); MimeHelper.AddMimeMapping(".dcr", "application/x-director"); MimeHelper.AddMimeMapping(".disco", "text/xml"); MimeHelper.AddMimeMapping(".exe", "application/octet-stream"); MimeHelper.AddMimeMapping(".etx", "text/x-setext"); MimeHelper.AddMimeMapping(".evy", "application/envoy"); MimeHelper.AddMimeMapping(".eml", "message/rfc822"); MimeHelper.AddMimeMapping(".eps", "application/postscript"); MimeHelper.AddMimeMapping(".flr", "x-world/x-vrml"); MimeHelper.AddMimeMapping(".fif", "application/fractals"); MimeHelper.AddMimeMapping(".gtar", "application/x-gtar"); MimeHelper.AddMimeMapping(".gif", "image/gif"); MimeHelper.AddMimeMapping(".gz", "application/x-gzip"); MimeHelper.AddMimeMapping(".hta", "application/hta"); MimeHelper.AddMimeMapping(".htc", "text/x-component"); MimeHelper.AddMimeMapping(".htt", "text/webviewhtml"); MimeHelper.AddMimeMapping(".h", "text/plain"); MimeHelper.AddMimeMapping(".hdf", "application/x-hdf"); MimeHelper.AddMimeMapping(".hlp", "application/winhlp"); MimeHelper.AddMimeMapping(".html", "text/html"); MimeHelper.AddMimeMapping(".htm", "text/html"); MimeHelper.AddMimeMapping(".hqx", "application/mac-binhex40"); MimeHelper.AddMimeMapping(".isp", "application/x-internet-signup"); MimeHelper.AddMimeMapping(".iii", "application/x-iphone"); MimeHelper.AddMimeMapping(".ief", "image/ief"); MimeHelper.AddMimeMapping(".ivf", "video/x-ivf"); MimeHelper.AddMimeMapping(".ins", "application/x-internet-signup"); MimeHelper.AddMimeMapping(".ico", "image/x-icon"); MimeHelper.AddMimeMapping(".jpg", "image/jpeg"); MimeHelper.AddMimeMapping(".jfif", "image/pjpeg"); MimeHelper.AddMimeMapping(".jpe", "image/jpeg"); MimeHelper.AddMimeMapping(".jpeg", "image/jpeg"); MimeHelper.AddMimeMapping(".js", "application/x-javascript"); MimeHelper.AddMimeMapping(".lsx", "video/x-la-asf"); MimeHelper.AddMimeMapping(".latex", "application/x-latex"); MimeHelper.AddMimeMapping(".lsf", "video/x-la-asf"); MimeHelper.AddMimeMapping(".manifest", "application/x-ms-manifest"); MimeHelper.AddMimeMapping(".mhtml", "message/rfc822"); MimeHelper.AddMimeMapping(".mny", "application/x-msmoney"); MimeHelper.AddMimeMapping(".mht", "message/rfc822"); MimeHelper.AddMimeMapping(".mid", "audio/mid"); MimeHelper.AddMimeMapping(".mpv2", "video/mpeg"); MimeHelper.AddMimeMapping(".man", "application/x-troff-man"); MimeHelper.AddMimeMapping(".mvb", "application/x-msmediaview"); MimeHelper.AddMimeMapping(".mpeg", "video/mpeg"); MimeHelper.AddMimeMapping(".m3u", "audio/x-mpegurl"); MimeHelper.AddMimeMapping(".mdb", "application/x-msaccess"); MimeHelper.AddMimeMapping(".mpp", "application/vnd.ms-project"); MimeHelper.AddMimeMapping(".m1v", "video/mpeg"); MimeHelper.AddMimeMapping(".mpa", "video/mpeg"); MimeHelper.AddMimeMapping(".me", "application/x-troff-me"); MimeHelper.AddMimeMapping(".m13", "application/x-msmediaview"); MimeHelper.AddMimeMapping(".movie", "video/x-sgi-movie"); MimeHelper.AddMimeMapping(".m14", "application/x-msmediaview"); MimeHelper.AddMimeMapping(".mpe", "video/mpeg"); MimeHelper.AddMimeMapping(".mp2", "video/mpeg"); MimeHelper.AddMimeMapping(".mov", "video/quicktime"); MimeHelper.AddMimeMapping(".mp3", "audio/mpeg"); MimeHelper.AddMimeMapping(".mpg", "video/mpeg"); MimeHelper.AddMimeMapping(".ms", "application/x-troff-ms"); MimeHelper.AddMimeMapping(".nc", "application/x-netcdf"); MimeHelper.AddMimeMapping(".nws", "message/rfc822"); MimeHelper.AddMimeMapping(".oda", "application/oda"); MimeHelper.AddMimeMapping(".ods", "application/oleobject"); MimeHelper.AddMimeMapping(".pmc", "application/x-perfmon"); MimeHelper.AddMimeMapping(".p7r", "application/x-pkcs7-certreqresp"); MimeHelper.AddMimeMapping(".p7b", "application/x-pkcs7-certificates"); MimeHelper.AddMimeMapping(".p7s", "application/pkcs7-signature"); MimeHelper.AddMimeMapping(".pmw", "application/x-perfmon"); MimeHelper.AddMimeMapping(".ps", "application/postscript"); MimeHelper.AddMimeMapping(".p7c", "application/pkcs7-mime"); MimeHelper.AddMimeMapping(".pbm", "image/x-portable-bitmap"); MimeHelper.AddMimeMapping(".ppm", "image/x-portable-pixmap"); MimeHelper.AddMimeMapping(".pub", "application/x-mspublisher"); MimeHelper.AddMimeMapping(".pnm", "image/x-portable-anymap"); MimeHelper.AddMimeMapping(".png", "image/png"); MimeHelper.AddMimeMapping(".pml", "application/x-perfmon"); MimeHelper.AddMimeMapping(".p10", "application/pkcs10"); MimeHelper.AddMimeMapping(".pfx", "application/x-pkcs12"); MimeHelper.AddMimeMapping(".p12", "application/x-pkcs12"); MimeHelper.AddMimeMapping(".pdf", "application/pdf"); MimeHelper.AddMimeMapping(".pps", "application/vnd.ms-powerpoint"); MimeHelper.AddMimeMapping(".p7m", "application/pkcs7-mime"); MimeHelper.AddMimeMapping(".pko", "application/vndms-pkipko"); MimeHelper.AddMimeMapping(".ppt", "application/vnd.ms-powerpoint"); MimeHelper.AddMimeMapping(".pmr", "application/x-perfmon"); MimeHelper.AddMimeMapping(".pma", "application/x-perfmon"); MimeHelper.AddMimeMapping(".pot", "application/vnd.ms-powerpoint"); MimeHelper.AddMimeMapping(".prf", "application/pics-rules"); MimeHelper.AddMimeMapping(".pgm", "image/x-portable-graymap"); MimeHelper.AddMimeMapping(".qt", "video/quicktime"); MimeHelper.AddMimeMapping(".ra", "audio/x-pn-realaudio"); MimeHelper.AddMimeMapping(".rgb", "image/x-rgb"); MimeHelper.AddMimeMapping(".ram", "audio/x-pn-realaudio"); MimeHelper.AddMimeMapping(".rmi", "audio/mid"); MimeHelper.AddMimeMapping(".ras", "image/x-cmu-raster"); MimeHelper.AddMimeMapping(".roff", "application/x-troff"); MimeHelper.AddMimeMapping(".rtf", "application/rtf"); MimeHelper.AddMimeMapping(".rtx", "text/richtext"); MimeHelper.AddMimeMapping(".sv4crc", "application/x-sv4crc"); MimeHelper.AddMimeMapping(".spc", "application/x-pkcs7-certificates"); MimeHelper.AddMimeMapping(".setreg", "application/set-registration-initiation"); MimeHelper.AddMimeMapping(".snd", "audio/basic"); MimeHelper.AddMimeMapping(".stl", "application/vndms-pkistl"); MimeHelper.AddMimeMapping(".setpay", "application/set-payment-initiation"); MimeHelper.AddMimeMapping(".stm", "text/html"); MimeHelper.AddMimeMapping(".shar", "application/x-shar"); MimeHelper.AddMimeMapping(".sh", "application/x-sh"); MimeHelper.AddMimeMapping(".sit", "application/x-stuffit"); MimeHelper.AddMimeMapping(".spl", "application/futuresplash"); MimeHelper.AddMimeMapping(".sct", "text/scriptlet"); MimeHelper.AddMimeMapping(".scd", "application/x-msschedule"); MimeHelper.AddMimeMapping(".sst", "application/vndms-pkicertstore"); MimeHelper.AddMimeMapping(".src", "application/x-wais-source"); MimeHelper.AddMimeMapping(".sv4cpio", "application/x-sv4cpio"); MimeHelper.AddMimeMapping(".tex", "application/x-tex"); MimeHelper.AddMimeMapping(".tgz", "application/x-compressed"); MimeHelper.AddMimeMapping(".t", "application/x-troff"); MimeHelper.AddMimeMapping(".tar", "application/x-tar"); MimeHelper.AddMimeMapping(".tr", "application/x-troff"); MimeHelper.AddMimeMapping(".tif", "image/tiff"); MimeHelper.AddMimeMapping(".txt", "text/plain"); MimeHelper.AddMimeMapping(".texinfo", "application/x-texinfo"); MimeHelper.AddMimeMapping(".trm", "application/x-msterminal"); MimeHelper.AddMimeMapping(".tiff", "image/tiff"); MimeHelper.AddMimeMapping(".tcl", "application/x-tcl"); MimeHelper.AddMimeMapping(".texi", "application/x-texinfo"); MimeHelper.AddMimeMapping(".tsv", "text/tab-separated-values"); MimeHelper.AddMimeMapping(".ustar", "application/x-ustar"); MimeHelper.AddMimeMapping(".uls", "text/iuls"); MimeHelper.AddMimeMapping(".vcf", "text/x-vcard"); MimeHelper.AddMimeMapping(".wps", "application/vnd.ms-works"); MimeHelper.AddMimeMapping(".wav", "audio/wav"); MimeHelper.AddMimeMapping(".wrz", "x-world/x-vrml"); MimeHelper.AddMimeMapping(".wri", "application/x-mswrite"); MimeHelper.AddMimeMapping(".wks", "application/vnd.ms-works"); MimeHelper.AddMimeMapping(".wmf", "application/x-msmetafile"); MimeHelper.AddMimeMapping(".wcm", "application/vnd.ms-works"); MimeHelper.AddMimeMapping(".wrl", "x-world/x-vrml"); MimeHelper.AddMimeMapping(".wdb", "application/vnd.ms-works"); MimeHelper.AddMimeMapping(".wsdl", "text/xml"); MimeHelper.AddMimeMapping(".xap", "application/x-silverlight-app"); MimeHelper.AddMimeMapping(".xml", "text/xml"); MimeHelper.AddMimeMapping(".xlm", "application/vnd.ms-excel"); MimeHelper.AddMimeMapping(".xaf", "x-world/x-vrml"); MimeHelper.AddMimeMapping(".xla", "application/vnd.ms-excel"); MimeHelper.AddMimeMapping(".xls", "application/vnd.ms-excel"); MimeHelper.AddMimeMapping(".xlsx", "application/vnd.ms-excel"); MimeHelper.AddMimeMapping(".xof", "x-world/x-vrml"); MimeHelper.AddMimeMapping(".xlt", "application/vnd.ms-excel"); MimeHelper.AddMimeMapping(".xlc", "application/vnd.ms-excel"); MimeHelper.AddMimeMapping(".xsl", "text/xml"); MimeHelper.AddMimeMapping(".xbm", "image/x-xbitmap"); MimeHelper.AddMimeMapping(".xlw", "application/vnd.ms-excel"); MimeHelper.AddMimeMapping(".xpm", "image/x-xpixmap"); MimeHelper.AddMimeMapping(".xwd", "image/x-xwindowdump"); MimeHelper.AddMimeMapping(".xsd", "text/xml"); MimeHelper.AddMimeMapping(".z", "application/x-compress"); MimeHelper.AddMimeMapping(".zip", "application/x-zip-compressed"); MimeHelper.AddMimeMapping(".*", "application/octet-stream"); } } }