Apache with Java Support (tomcat)

tictac · #1 26th February 2009, 01:32 PM

Greetings everyone.

I've got a question: how should I make the Apache vhosts to support the jsp extension?

PS:I've installed and loaded the mod_jk.

tictac · #2 27th February 2009, 02:18 PM

Anyone with a idea?

fwelland · #3 27th February 2009, 02:39 PM

I can't directly answer your question -- but give you some hints.

One thing you consider doing is just run tomcat as a web server -- and not run apache at all. This of course depends on your needs, as maybe there is something in apache that tomcat won't provide. Tomcat will provide all web-container stuff plus basic file serving.

If you need apache -- by it self -- I don't think it has any thing to actually process JSPs and servlets (insider of it). Rather, typically, you configure apache to forward http requests to a web container like tomcat. You are in the right area with the mod_jk apache plugin -- there is also the mod_proxy stuff in Apache 2.x

Basically with these apache plugins you select certain URL patterns to be forwarded to, for example, tomcat. On the tomcat side, you configure the appropriate connector to accept http requests forwarded to tomcat from apache.

there is a quick how-to here: http://tomcat.apache.org/connectors-...wto/quick.html

tictac · #4 1st March 2009, 01:26 PM

Well, I would run Tomcat, but I don't know to handle vhosts!

In apache was simple, 2 files for editing, the httpd.conf and the vhost itself. I've watched many tutorials on how to vhost the Tomcat, but didn't get it for Linux!

sentry · #5 1st March 2009, 01:42 PM

You shouldn't need to mess around with many files to deploy a webapp in Tomcat. Just pack your app as a war file and drop it into /usr/share/tomcat/webapps/ and it will unpack and deploy itself.

Sauron · #6 1st March 2009, 01:48 PM

I've not done it myself, but I didn't think mod_jk worked in Apache 2.2, you needed to use mod_proxy_ajp or something?

Quick google came up with http://rimuhosting.com/mod_jk2_and_mod_proxy_ajp.jsp - maybe that's a place to start?

fwelland · #7 1st March 2009, 03:50 PM

Quote:

Originally Posted by tictac

Well, I would run Tomcat, but I don't know to handle vhosts!

In apache was simple, 2 files for editing, the httpd.conf and the vhost itself. I've watched many tutorials on how to vhost the Tomcat, but didn't get it for Linux!

There are (at least) 2 ways to do this with tomcat alone.

One way, -- tomcat has virtual host -- you can look here: http://tomcat.apache.org/tomcat-5.5-...ing-howto.html (or the same pages but for 6.0x etc)...

Have multiple IPs for a host (either multi-nics or single nic) and start different tomcat instances binding to different ports...and configure tomcat instances as per virtual hosts needs.

tictac · #8 1st March 2009, 04:46 PM

Well, the binding of different ports it's not useful, because the websites must be avalable at www.examplesite.com, not www.examplesite.com: port

About the tomcat vhost, if you have a server configured that way, can you please post some conf. examples?

Thank you in advance!

PS: I've installed mod_jk and it's successfully loaded in Apache, but if I make a Apache vhost and point the vhost to the location of the java index file, it's not loading

fwelland · #9 1st March 2009, 06:00 PM

Quote:

Originally Posted by tictac

Well, the binding of different ports it's not useful, because the websites must be avalable at www.examplesite.com, not www.examplesite.com: port

About the tomcat vhost, if you have a server configured that way, can you please post some conf. examples?

Thank you in advance!

PS: I've installed mod_jk and it's successfully loaded in Apache, but if I make a Apache vhost and point the vhost to the location of the java index file, it's not loading

Actually -- you'd bind to the same port (e.g. 80) but on different IPs....For example, I've built a web app that had a few parts that we ran on 2 tomcats and a jboss. We had 3 public urls -- for example -- www.mysite.com , admin.mysite.com, and reports.mysite.com

I my case, we had 2 IPs on one box and I ran 2 tomcats, report.mysite.com on port 80 and admin.mysite.com on port 80 but on a different IP number (one IP for report.mysite.com and one IP for admin.mysite.com)... There is no real magic with this -- just have multiple IPs on one piece of hardware. You don't have to have multiple nics -- but often web apps might have multi-nics. you can do this type of thing on both windows and unix/linux.

As for Tcat and its vhost stuff. Sorry I just know that there is some sort of ability to do it...I've never really used that feature. I have done the multi-ip thing....

And I haven't really used mod-jk in apache either -- just know about it... My current work does use a reverse proxy widget (I think mod-proxy) in apache to front-end our JBOSS instances (i.e. tomcat) -- but that just acts as a traffic cop forwarding URLs to different JBOSSes based on a pattern....(not using AJP connector)... We dont' really have any vhosts...and I am not up to speed on the apache setup..

hth....