此处做一下小的汇总,
针对Jetty容器内,存在excel的xlsx文件直接通过链接的方式下载的时候,如果是在Chrome浏览器时,则直接触发浏览器的下载行为,
但是在IE11的浏览器上,则浏览器会直接进行打开该文件,重点是浏览器进行打开该文件的时候,打开后必然是乱码的,这中情况必然是错误的,
但是如果是xls的Excel文件也是就2007老版本的excel文件,则IE浏览器便会提示进行下载,所以原因便是当浏览器支持该文件格式的预览的时候,
则直接打开,不支持时则默认为下载提示,(因为此处是直接访问Jetty容器中的excel文件,而不是代码中通过流的方式返回的文件流,如果是代码中
返回文件流,则直接设置对应的response的响应类型为download即可,但此处既然是通过Jetty默认的方式进行的文件下载,则1.更改Jetty的默认配置,
配置使其在下载指定类型的流文件时,使其重复浏览器的下载行为,而并非直接打开的行为,2.则是设置浏览器IE的行为,针对某一类型的文件流,默认不进行打开的设置,
此处使用设置Jetty方式进行调整,即设置Jetty的MIME协议类型映射,针对xls和xlsx文件类型,统一映射的MIME类型为application/msexcel,
Jetty中的配置方式则为:更改Jetty下etc目录下的webDefault.xml的配置,增加MIME类型的协议映射,
截图配置如下:
此处主要另外还说明一点则是:针对Jetty中间件对请求的编码的映射,等等也是在该webdefault.xml中进行配置,如该文件中的: <locale-encoding-mapping-list>用于配置指定编码映射,
可参考:https://www.cnblogs.com/gis2s/articles/3321893.html,包括对应的Jetty对静态文件的缓存的去除也是可以配置该文件的useFileMappedBuffer属性,参考:
https://blog.csdn.net/wwsscc168/article/details/51095099,而对于配置当前Jetty对线程数量的支持,以及访问的超时时间等,可以详细了接下jetty.xml的一些配置信息,
附上百度百科对MIME协议的讲解截图:
转自:https://blog.csdn.net/wxwlife2006/article/details/8115273#commentBox
这几天一向很纳闷,在Tomcat安排的网站中的下载文件中,若是文件是rar类型的,一点击下载rar文件就直接打开,并且呈现乱码,右键另存为浏览器也是默认为html格局,一向认为是浏览器IE的题目,后来发明其实不关浏览器的题目,而是Tomcat办事器设备的题目,具体如下:
web.xml文件中设备<mime-mapping>下载文件类型
TOMCAT在默认景象下下载.rar的文件是把文件算作text打开,以至于IE打开RAR文件为乱码,若是碰到这种景象时不必认为是浏览器的题目,大多半浏览器应当不会逝世皮赖脸地把二进制文件算作文本打开,一般都是办事器给什么浏览器就开什么.解决办法:
打开conf/web.xml,参加下面的代码.
<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.
不合的ContentType 会影响客户端所看到的结果.
默认的ContentType为 text/html 也就是网页格局.
代码如:
<% response.ContentType ="text/html" %>
<!--#i nclude virtual="/ContentType.html" -->
<!--#i nclude virtual="/ContentType.html" -->
显示的为网页,而
<% response.ContentType ="text/plain" %>
<!--#i nclude virtual="/sscript/ContentType.html" -->
<!--#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" -->
<% 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" -->
下面是更具体的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
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
TXT文件做下载的JS实现
<%...@ page contentType="text/html; charset=gb2312" language="java" %> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <title>无题目文档</title> <script language="JavaScript">... function openfile(url) ...{ var a =window.open(url,"_blank",""); a.document.execCommand("SaveAs"); a.close(); } </script> </head> <body> <p><a href="#" onclick=""openfile("aa.txt")"">下载</a></p> </body> </html> 转载请注明出处[http://samlin.cnblogs.com/]