JRuby on Rails with Nine Lives: Running a JRuby on Rails Application on Tomcat

Now, create your scaffold for your Guitar Ruby class that Rails will use to manage your guitars table. Run the following command:

jruby script/generate scaffold Guitar

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Figure 14: Generating the Guitar class scaffold

Testing the Rails Application Using WEBrick

Now that you have everything you need to do CRUD operations on our guitars table, give your app a quick test run using Ruby's WEBrick server. You run the following command to start WEBrick and point your browser to http://localhost:3000/guitars:

jruby script/server

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Figure 15: Running the railswartest app using the WEBrick server

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Figure 16: The railswartest app running on the JRuby WEBrick server

Installing Tomcat

I assume you already have Apache Tomcat installed. If not, you can download it and uncompress it to your desired installation directory. I am using Tomcat version 5.5.17; it is installed to the /opt/tomcat directory.

Creating the WAR File and Deploying It to Tomcat

To create a WAR file of your railstestwar app, run the following command:

jruby -S rake war:standalone:create

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Figure 17: Creating the railswartest WAR