The mod_jk connector for Apache and Tomcat

This little tiny piece of code is the bridge that helps Apache and Tomcat collaborate together to help you host the most powerful web applications from your own PC! Maybe you're wondering, "But why do I need that module?" Well, if you have noticed the screenshot of step 5 from the previous exercise, to access your Roller homepage you need to type http://localhost:8080/roller. The :8080 part is necessary to access Tomcat, because the Apache web server uses http://localhost to serve web pages. With the mod_jk connector, Apache and Tomcat will share the http://localhost address without conflicts, and you will access your Roller homepage with http://localhost/roller.