以下是一些文件后缀（扩展名）对应的MIME类型的一个对照表，方便iis中或其他服务器对相应的文件进行解析。有些文件的后缀名没有默认解析就出现上传后无法访问或者下载的问题，这个时候就要设置文件后缀对应的MIME类型，设置后才能访问或者下载。
文件后缀 MIME类型
//文档文件类型的
.ai application/postscript
.eps application/postscript
.exe application/octet-stream
.doc application/vnd.ms-word
.xls application/vnd.ms-excel
.ppt application/vnd.ms-powerpoint
.pps application/vnd.ms-powerpoint
.pdf application/pdf
.xml application/xml
.odt application/vnd.oasis.opendocument.text
.swf application/x-shockwave-flash
//压缩文件类型的
.gz application/x-gzip
.tgz application/x-gzip
.bz application/x-bzip2
.bz2 application/x-bzip2
.tbz application/x-bzip2
.zip application/zip
.rar application/x-rar
.tar application/x-tar
.7z application/x-7z-compressed
//文字类型
.txt text/plain
.php text/x-php
.html text/html
.htm text/html
.js text/javascript
.css text/css
.rtf text/rtf
.rtfd text/rtfd
.py text/x-python
.java text/x-java-source
.rb text/x-ruby
.sh text/x-shellscript
.pl text/x-perl
.sql text/x-sql
//图片类型的
.bmp image/x-ms-bmp
.jpg image/jpeg
.jpeg image/jpeg
.gif image/gif
.png image/png
.tif image/tiff
.tiff image/tiff
.tga image/x-targa
.psd image/vnd.adobe.photoshop
//音频文件类型的
.mp3 audio/mpeg
.mid audio/midi
.ogg audio/ogg
.mp4a audio/mp4
.wav audio/wav
.wma audio/x-ms-wma
//视频文件类型的
.avi video/x-msvideo
.dv video/x-dv
.mp4 video/mp4
.mpeg video/mpeg
.mpg video/mpeg
.mov video/quicktime
.wm video/x-ms-wmv
.flv video/x-flv
.mkv video/x-matroska