~Regards, ~~Alireza Fattahi
________________________________ From: André Warnier <a...@ice-sa.com> To: Tomcat Users List <users@tomcat.apache.org> Sent: Monday, 15 July 2013, 14:13 Subject: Re: JSP in Static Resources Alireza Fattahi wrote: > Thanks for help! > > Let me summarize: > > There are two servlets as below: > 1- Default servlet which process all static resources > 2- jsp servlet which process the JSP file yes. > > The mime types ( which are defined in localhost-config/web.xml) are only used > bydefault servlet. > Yes, but you should remove the parenthesis. > > When I ask the jsp servlet to process the .css files, this servlet will > always set the MIME to text/html. By default, yes, the JSP servlet sets the content-type to HTML. This is a *default*, and it is chosen this way to save precious programmer keystrokes to state the content-type explicitly, for the majority of cases (because overwhelmingly, JSP pages usually return HTML content). So it belongs to the programmer to explicitly specify the content-type, it it does not match the default. This is the case for *any non-HTML* content, whether it is CSS, Javascript, images or whatever. > > So this problem could be solved if the servlet mapping has something like > mime-type as below: > <servlet-mapping> > <servlet-name>jsp</servlet-name> > <url-pattern>*.css</url-pattern> > <mime-type>text/css</mime-type> > </servlet-mapping> Yes, but you should realise that this is "syntactic sugar" : it saves some keystrokes for the programmer, at the cost of making the server more bloated. Just like for standard HTML, each page should contain an indication of what it's content is. > I should ask jcp.org to put this in next servlet jsr !! > See Mark's answer. > > So, may be I try to write a servlet to set the content type. > Do you know if tomcat has a build in filter or servlet for that. > Some thing like: org.apache.catalina.filters.SetCharacterEncodingFilter which > sets the encoding > See Mark's answer. Alireza, (hoping that this is your first name) ************ Yes André my name is Alireza !! basically my own opinion is : Your idea of incorporating Java code into the CSS pages, to achieve what you want, is clever, and it is technically possible. But the fact that it is clever and technically possible does not mean that you should necessarily do it that way. That way of doing it, in my view, has a number of disadvantages which more than compensate for the cleverness : it would not work under all versions of all servers, it does not allow caching of the CSS files, it makes it more difficult to understand and maintain the pages of your website, and it makes things so that your CSS pages are not really pure CSS pages anymore. It also makes it so that each time your server will serve a CSS page, it will have to run a few tens of thousands of additional CPU cycles, compared to having the CSS files as pure static documents. And it willhave to do this more often, because they are not static anymore and will not be cached by the browsers and/or server. I would not do it that way, and I would try to apply the cleverness somewhere else. You have the "real" JSP pages of your site, which /must/ already be "compiled" and "executed" via the JSP process anyway. One additional instruction in these pages is not going to make a big difference. But making the CSS pages go from being static to being dynamic is a big difference, with a series of side-effects now and in the future that are difficult to predict. But it's your application and your choice. ***** Thanks for your comments ***** I already see sites that do this. ***** For example please visit these three sites: ***** http://en.wikipedia.org/wiki/Apache_Tomcat ***** View source ***** <link rel="stylesheet" href="//bits.wikimedia.org/en.wikipedia.org/load.php?debug=false&lang=en&modules=ext.gadget.DRN-wizard%2CReferenceTooltips%2Ccharinsert%2Cteahouse%7Cext.rtlcite%2Cwikihiero%7Cext.uls.nojs%7Cmediawiki.legacy.commonPrint%2Cshared%7Cmw.PopUpMediaTransform%7Cskins.vector&only=styles&skin=vector&*" /> ***** the load.php makes a dynamic css ***** Please visit www.ebay.com ***** View source ***** <link href="http://gh.ebaystatic.com/header/css/all.min?combo=11&ds=3&siteid=0&rvr=93&h=22235"; type="text/css" rel="stylesheet"> ****** the all.min loads dynamic css ****** Even facebook uses dynamic css. ****** Do you think I am wrong ? ****** All these site are multilinguala and bidirectional sites. This is the case which force them ****** make the css files generate dynamically. ****** When you work on these types of sites there is always a trade off to make some thing like this: ****** mysite/style/fa_IR/style.css ****** mysite/styles/en_US/style.css ****** mysite/styles/ar_AU/style.css ****** or making one css and try put if statements in it. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
