eclipse can not determine apache tomcat 7 on ubuntu - eclipse

Question

I'm using eclipse 3.8 and running it on ubuntu 12.10 which has apache tomcat 7.
the problem is when I want to select tomcat as my server on eclipse runtime environment there is no option for selecting apache tomcat 7.
I've tested tomcat server at localhost:8080 and it works.it seems there is no problem with tomcat itself but I don't know why I cant add it to eclipse.Is there any idea to solve this problem?
edit:
my eclise is not a java ee edition and I've installed java ee as a plugin.

Answer 1

Here's the way I did it, it keeps the system tomcat and your own personal tomcat instance separate, and you don't have to change permissions or stop the tomcat running as a service.
Install tomcat as per normal: sudo apt-get install tomcat7
Install private instance support: sudo apt-get install tomcat7-user
Create local instance in your home folder:
tomcat7-instance-create -p 10080 -c 10005 mytomcat
Note: -p sets the port number (default is 8080) and -c is the control port (default 8005), we set these so we don't compete with the main installation of tomcat running as a service. "mytomcat" can be anything you like, but it will create a directory by this name in your home.
Now use the following to make Eclipse happy:
cd mytomcat
ln -s /usr/share/tomcat7/lib
ln -s /etc/tomcat7/policy.d/03catalina.policy conf/catalina.policy
ln -s /usr/share/tomcat7/bin/bootstrap.jar bin/bootstrap.jar
ln -s /usr/share/tomcat7/bin/tomcat-juli.jar bin/tomcat-juli.jar
mkdir -p common/classes;
mkdir -p server/classes;
mkdir -p shared/classes;
Now within Eclipse you can create a Tomcat v7.0 server and set the installation directory as ~/mytomcat.
Note: common, server and shared classes could be links too, but I wanted to keep the two separate.

Answer 2

please be more precise in your question: did you install Tomcat and Eclipse via APT? Is your Eclipse Java EE edition, or did you install the Java EE plugin?
I will suppose you got both from Ubuntu repository and you are using Eclipse for Java EE developers.
You look to http://lackovic.wordpress.com/2012/05/31/set-up-eclipse-and-tomcat-7-on-ubuntu-12-04-to-create-java-restful-web-services-with-jersey/ and follow the how-to till step 13. For me worked flawlessly.
Before starting, you must stop the running service with sudo service tomcat7 stop. In fact, Eclipse needs to start his own instance of Tomcat, that is gonna crash if there is another Tomcat listening on 8080.
Please note that Ubuntu's Tomcat installation is a little bit different from the vanilla one: in fact, Ubuntu's maintainers decide to split up the base directory and the configuration directory, while Eclipse is going to look in the base directory for configurations.