在IE中通过a标签直接下载rar文件时以乱码方式打开

 

在JSP的下载文件中，如果文件是rar类型的，一点击下载rar文件就直接打开，并且出现乱码，右键另存为浏览器也是默认为html格式，一直以为是浏览器IE的问题，后来发现其实不关浏览器的问题，而是web.xml配置的问题，具体如下：

web.xml文件中配置<mime-mapping>下载文件类型
TOMCAT在默认情况下下载.rar的文件是把文件当作text打开,以至于IE打开RAR文件为乱码,如果遇到这种情况解决方法:

打开conf/web.xml,加入下面的代码.

 <mime-mapping>
 <extension>doc</extension>
 <mime-type>application/msword</mime-type>
 </mime-mapping>
 <mime-mapping>
 <extension>xls</extension>
 <mime-type>application/msexcel</mime-type>
 </mime-mapping>
 <mime-mapping>
 <extension>pdf</extension>
 <mime-type>application/pdf</mime-type>
 </mime-mapping>
 <mime-mapping>
 <extension>zip</extension>
 <mime-type>application/zip</mime-type>
 </mime-mapping>
 <mime-mapping>
 <extension>rar</extension>
 <mime-type>application/rar</mime-type>
 </mime-mapping>
 <mime-mapping>
 <extension>txt</extension>
 <mime-type>application/txt</mime-type>
 </mime-mapping>
 <mime-mapping>
 <extension>chm</extension>
 <mime-type>application/mshelp</mime-type>
 </mime-mapping>
 <mime-mapping>
 <extension>mp3</extension>
 <mime-type>audio/x-mpeg</mime-type>
 </mime-mapping>

重启TOMCAT,清除IE缓存,再打开RAR的文件时就可以正常下载了.

不同的ContentType 会影响客户端所看到的效果.

默认的ContentType为 text/html 也就是juapk.com网页格式.

代码如:

 <% response.ContentType ="text/html" %>
 <!--＃i nclude virtual="/ContentType.html" -->

显示的为网页,而

 <% response.ContentType ="text/plain" %>
 <!--＃i nclude virtual="/sscript/ContentType.html" -->

则会显示html原代码.

以下为一些常用的 ContentType

GIF images
 <% response.ContentType ="image/gif" %>
 <!--＃i nclude virtual="/myimage.gif" -->
 JPEG images
 <% response.ContentType ="image/jpeg" %>
 <!--＃i nclude virtual="/myimage.jpeg" -->
 TIFF images
 <% response.ContentType ="image/tiff" %>
 <!--＃i nclude virtual="/myimage.tiff" -->
 MICROSOFT WORD document
 <% response.ContentType ="application/msword" %>
 <!--＃i nclude virtual="/myfile.doc" -->
 RTF document
 <% response.ContentType ="application/rtf" %>
 <!--＃i nclude virtual="/myfile.rtf" -->
 MICROSOFT EXCEL document
 <% response.ContentType ="application/x-excel" %>
 <!--＃i nclude virtual="/myfile.xls" -->
 MICROSOFT POWERPOINT document
 <% response.ContentType ="application/ms-powerpoint" %>
 <!--＃i nclude virtual="/myfile.pff" -->
 PDF document
 <% response.ContentType ="application/pdf" %>
 <!--＃i nclude virtual="/myfile.pdf" -->
 ZIP document
 <% response.ContentType ="application/zip" %>
 <!--＃i nclude virtual="/myfile.zip" -->

下面是更详细的ContentType

application/andrew-inset ez
 application/mac-binhex40 hqx
 application/mac-compactpro cpt
 application/mathml+xml mathml
 application/msword doc
 application/octet-stream bin dms lha lzh exe class so dll
 application/oda oda
 application/ogg ogg
 application/pdf pdf
 application/postscript ai eps ps
 application/rdf+xml rdf
 application/smil smi smil
 application/srgs gram
 application/srgs+xml grxml
 application/vnd.mif mif
 application/vnd.mozilla.xul+xml xul
 application/vnd.ms-excel xls
 application/vnd.ms-powerpoint ppt
 application/vnd.wap.wbxml wbxml
 application/vnd.wap.wmlc .wmlc wmlc
 application/vnd.wap.wmlscriptc .wmlsc wmlsc
 application/voicexml+xml vxml
 application/x-bcpio bcpio
 application/x-cdlink vcd
 application/x-chess-pgn pgn
 application/x-cpio cpio
 application/x-csh csh
 application/x-director dcr dir dxr
 application/x-dvi dvi
 application/x-futuresplash spl
 application/x-gtar gtar
 application/x-hdf hdf
 application/x-httpd-php .php .php4 .php3 .phtml
 application/x-httpd-php-source .phps
 application/x-javascript js
 application/x-koan skp skd skt skm
 application/x-latex latex
 application/x-netcdf nc cdf
 application/x-pkcs7-crl .crl
 application/x-sh sh
 application/x-shar shar
 application/x-shockwave-flash swf
 application/x-stuffit sit
 application/x-sv4cpio sv4cpio
 application/x-sv4crc sv4crc
 application/x-tar .tgz tar
 application/x-tcl tcl
 application/x-tex tex
 application/x-texinfo texinfo texi
 application/x-troff t tr roff
 application/x-troff-man man
 application/x-troff-me me
 application/x-troff-ms ms
 application/x-ustar ustar
 application/x-wais-source src
 application/x-x509-ca-cert .crt
 application/xhtml+xml xhtml xht
 application/xml xml xsl
 application/xml-dtd dtd
 application/xslt+xml xslt
 application/zip zip
 audio/basic au snd
 audio/midi mid midi kar
 audio/mpeg mpga mp2 mp3
 audio/x-aiff aif aiff aifc
 audio/x-mpegurl m3u
 audio/x-pn-realaudio ram rm
 audio/x-pn-realaudio-plugin rpm
 audio/x-realaudio ra
 audio/x-wav wav
 chemical/x-pdb pdb
 chemical/x-xyz xyz
 image/bmp bmp
 image/cgm cgm
 image/gif gif
 image/ief ief
 image/jpeg jpeg jpg jpe
 image/png png
 image/svg+xml svg
 image/tiff tiff tif
 image/vnd.djvu djvu djv
 image/vnd.wap.wbmp .wbmp wbmp
 image/x-cmu-raster ras
 image/x-icon ico
 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 iges
 model/mesh msh mesh silo
 model/vrml wrl vrml
 text/calendar ics ifb
 text/css css
 text/html .shtml html htm
 text/plain asc txt
 text/richtext rtx
 text/rtf rtf
 text/sgml sgml sgm
 text/tab-separated-values tsv
 text/vnd.wap.wml .wml wml
 text/vnd.wap.wmlscript .wmls wmls
 text/x-setext etx
 video/mpeg mpeg mpg mpe
 video/quicktime qt mov
 video/vnd.mpegurl mxu
 video/x-msvideo avi
 video/x-sgi-movie movie
 x-conference/x-cooltalk ice