Thanks Christopher, > To whom it may concern, > > [EMAIL PROTECTED] wrote: > > I've apache 1.3.36 + tomcat 4 + mod_jk 3.3 > > Something is wrong with that mod_jk version, by the > way. The most recent > release of mod_jk is 1.2.23.
Well, the installation file that I found in the server is named: mod_jk-3.3-ap20.so, that's why I assumed that version. > > > I'm very new to web servers. I have a problem with > the > > cache configuration of a tomcat web application. > Using > > a http headers inspector, I can see that no cache > > control is been sent. > > Cache-control headers are usually not sent unless > they are necessary. > Are you sure they are necessary for your > environment? > > > I'd like to send "CacheControl: no-cache" in the > > header of every page of my app. First of all, is > this > > something that I should configure in apache, in > tomcat > > or in mod_jk??? > > I'm sure there are other ways to do this, but in > Tomcat, you can do it > easily by writing a simple "Filter" and installing > it in your > application. Writing a filter is as simple as > writing a class that > implements javax.servlet.Filter (3 methods) and then > installing it by > adding this to your WEB-INF/web.xml file: > > <filter> > <filter-name>encodingFilter</filter-name> > <description> > A filter to ensure that the request has > a valid > character encoding. This fixes problems > when the request is > being sent in (say) UTF-8 but the user > agent doesn't specify > the encoding. > </description> > <filter-class>org.childhealthcare.diagnosis.servlet.EncodingFilter</filter-class> > </filter> > > This stuff goes right at the top of the web.xml > file, just inside the > <web-app> element. Note that filters are applied in > the order they > appear in web.xml, so you might want to familiarize > yourself with any > existing filters before you install this one. > > The method you'll want to look for when implementing > your filter is > HttpServletResponse.addHeader(). You will probably > want to add your > header /before/ you hand-off processing to the next > filter in the chain. > Please please /please/ read the documentation for > Filter.doFilter before > you get started. You can find this documentation > here > (http://tomcat.apache.org/tomcat-5.5-doc/servletapi/javax/servlet/Filter.html) > as well as other places, I'm sure. > > Hope that helps, > -chris > > This method looks really cool, any way, does somebody knows another solution. I read about configuring apache http.conf and/or installing the headers module. However, I don't know if modifying apache configuration will solve the problem, maybe it's something that should be modified in mod_jk or tomcat. Does somebody knows this??? Is that filter installation the only way in which this could be achieved with tomcat?? Thank You. =) Llama gratis a cualquier PC del mundo. Con una excelente calidad de sonido. http://mx.messenger.yahoo.com/ --------------------------------------------------------------------- To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
