Hi André,

So, based on your explanation below, Tomcat can actually have more than
one default application?  It can have one for each and every <Host>?  This
is most interesting.  I had assumed that the default application had to be
installed at webapps/ROOT (or anywhere else the default host's appBase
happened to be).

Chris.


> Christopher Dodunski wrote:
>> Hi,
>>
>> Thanks, but I'm not quite clear on how to direct Tomcat to call the ROOT
>> application for a given domain.  I added the bottom <Host> element to
>> server.xml, but it doesn't appear to work correctly.
>>
>> <Engine name="Catalina" defaultHost="localhost">
>>   <Host name="localhost"  appBase="webapps" unpackWARs="true"
>> autoDeploy="true" xmlValidation="false" xmlNamespaceAware="false">
>>   </Host>
>>   <Host name="blog.christopher.net.nz" appBase="webapps/ROOT" />
>> </Engine>
>>
>> Previously, the URL http://blog.christopher.net.nz/christopher called up
>> webapps/christopher, when it should instead have been handled by Apache
>> Roller running with ROOT context.  Now that I have added the above
>> directive, Tomcat reports "The requested resource () is not available".
>>
>> The URL http://blog.bread.co.nz/bread is handled by Roller, as intended,
>> because there is no competing application at webapps/bread.
>>
> It is difficult to respond clearly to your questions, because they seem to
> be based on the
> wrong premises, and/or they are confusing as to what you are really trying
> to achieve.
> We also have no idea what the ROLLER application is, and how itself needs
> to be set up.
>
> But here are some basic principles :
>
> 1) this line :
>   <Engine name="Catalina" defaultHost="localhost">
> indicates which one of your <Host> below, is the default host.
> The default Host is the one which will handle any request which arrives at
> this server,
> and for which the hostname does not match one of the other <Host> tags.
> In you case thus, this
> <Host name="localhost"..
> is the default Host.
>
> 2) each separate Host should have a separate "appBase", not overlapping
> the others.
> So, having one Host with appBase="webapps", and another Host with
> appBase="webapps/xxxx"
> is a nono, you should not do that.
> Create another directory, for example (tomcat_dir)/webapps-blog, and use
> that one to put
> the applications related to your host blog.christopher.net.nz, like
> <Host name="blog.christopher.net.nz" appBase="webapps-blog" />
> (You can also define this directory totally outside the hierarchy of the
> main Tomcat, like
> at /var/websites/blog.christopher.net.nz, and then use
> <Host name="blog.christopher.net.nz"
> appBase="/var/websites/blog.christopher.net.nz" />
>
> 3) within each "applications base" (appBase), each application will
> correspond to a
> directory, with the same name as the application.
> So for example, under (tomcat_dir)/webapps/, you can have one application
> called "app1"
> and another called "app2", for a structure like this
>    tomcat_dir/webapps/
>                      app1/
>                      app2/
>
> 4) To call any of these applications, you will use a URL like :
>     http://host-name/app1
>     http://host-name/app2
>     etc..
>
> 5) the special name "ROOT" is reserved for the "default application"
> within a Host.
>     That is the application which users would get if they simply entered
>     http://host-name/
>
> So, to modify the structure given above so that there would be, in
> addition to app1 anbd
> app2, a default application, you would have :
>
>    a) a file structure like this :
>    tomcat_dir/webapps/
>                      ROOT/
>                      app1/
>                      app2/
> and users could ask for :
>
>     http://host-name/      (to get the default application)
>     http://host-name/app1  (to get the app1 application)
>     http://host-name/app2  (to get the app2 application)
>
> Does this clarify things ?
>
>
>



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