As Niranjan said, pls validate the headers first and it may be not the case in Tomcat7 but there are multiple points which must have updated probably triggering it. Only way to verify is set Content-Disposition header accurately and verify if browser can see it
On Fri, Jan 15, 2021, 8:41 AM Jonnalagadda, Swathi (External) < swathi.jonnalaga...@xerox.com> wrote: > Hi Chris > > My web application is trying to open the xls file by passing the file to > request.getDispatcher method. It is supposed open up download dialogue box > but it is not doing. > > If I set the content-type explicitly to response it is showing up the box. > > With Tomcat 7 it was never an issue and it used to consider mimetype that > is defined in web.xml but in Tomcat 9 not sure why it is not considering > mime-type. > > Thanks > Swathi > > -----Original Message----- > From: Christopher Schultz [mailto:ch...@christopherschultz.net] > Sent: Friday, January 15, 2021 3:25 AM > To: users@tomcat.apache.org > Subject: Re: Tomcat server not considering Mime Type - Request urgent > help!! > > CAUTION: This email originated from outside the organization. Do not > click links or open attachments unless you recognize the sender and know > the content is safe. > > Swathi, > > On 1/13/21 03:27, Jonnalagadda, Swathi (External) wrote: > > We could see that when we try to open the xls file separately the > > browser shows dialogue box to save it so it is nothing to do with > > browser settings > What is the difference between "open[ing] the XLS file separately" and ... > whatever your application is doing instead? > > If you want to force a download, you need to add some response headers > otherwise a normal browser will usually try to render the file in the > browser window instead of initiating a download. > > The response header you need is "Content-Disposition" and its value can be > complex. Here is what I usually do: > > Content-Disposition: attachment; filename="[filename]"; > filename*=utf-8''[filename in UTF-8 encoding] > > Note that the above is all on one line and the two single-quotes are not a > typo. You will also need to escape any double-quotes in the "filename" > and escape any semicolons in the utf8-filename. > > You can find more information here as well as other places online: > https://www.geeksforgeeks.org/http-headers-content-disposition/ > > The above reference happens to be particularly thorough, even moreso than > Mozilla's (typically very good and complete) documentation for > Content-Disposition. > > If your application is not being hosted within a web browser (e.g. it's a > mobile application, or an Electron (etc.) application, etc.) then it's > entirely up to you to trigger the display of a download dialog when this > kind of thing needs to happen. > > -chris > > > -----Original Message----- > > From: Mounika Reddy [mailto:spidermai...@gmail.com] > > Sent: Wednesday, January 13, 2021 3:48 AM > > To: Tomcat Users List > > Cc: Mark Thomas > > Subject: Re: Tomcat server not considering Mime Type - Request urgent > help!! > > > > CAUTION: This email originated from outside the organization. Do not > click links or open attachments unless you recognize the sender and know > the content is safe. > > > > Pls check http response headers for the request to confirm if it's > returning proper headers. > > > > Once they are in place then it may be to do with browser settings not > processing headers. > > > > > > > > On Tue, Jan 12, 2021, 2:48 PM Jonnalagadda, Swathi (External) < > swathi.jonnalaga...@xerox.com> wrote: > > > >> Hi Team > >> > >> We have an application deployed in tomcat9.0.38 server which > >> generates an xls file dynamically and saves at server end. When we > >> try to access the file using application frontend, it is neither > >> showing up in excel format nor showing up pop up to save the file > >> instead it is showing the content of xls file in xml format directly on > the browser. > >> > >> Below mime type is set both at web.xml of webapplicatio end and as > >> well as Tomcat9038/conf/web.xml > >> > >> <mime-mapping> > >> <extension>xls</extension> > >> <mime-type>application/vnd.ms-excel</mime-type> > >> </mime-mapping> > >> > >> Could you please help in resolving the issue ASAP > >> > >> > >> Thanks > >> Swathi > >> > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > > For additional commands, e-mail: users-h...@tomcat.apache.org > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org >
