Spring Roo Rest Service with JSON Interface

Here are the steps to build up a REST Service with Spring Roo from the scratch! This Service is accessible via JSON requests.

I did this on my ubuntu 11.10 system. Open JDK and Sun Java were already installed. 

1. Java Enrivonment
   - Sun Java is installed by default at /usr/lib/jvm/java-6-sun-1.6.0.26/
   - I moved the /usr/bin/java , which was pointing to the other java installation ( open JDK ), to /usr/bin/javaopen
   - renewed /usr/bin/java by:
   > sudo ln -s /usr/lib/jvm/java-6-sun-1.6.0.26/bin/java /usr/bin/java
   > sudo export JAVA_HOME= /usr/lib/jvm/java-6-sun-1.6.0.26
   
2. Install Maven2
   > sudo apt-get install maven2
   
3. Install Spring Roo ( Version 1.2.0 )
   - Download spring-roo.zip from springsource site and unzip it somewhere. (let's call it $ROO_HOME)
   > sudo ln -s $ROO_HOME/roo.sh /usr/bin/roo
   
   
4. Setup Roo Project> mkdir myrooproject
   > cd myrooproject
   > roo
   roo> project --topLevelPackage org.klarblick
   roo> hint
   roo> jpa setup --provider HIBERNATE --database HYPERSONIC_IN_MEMORY
   roo> hint
   roo> entity jpa --class ~.domain.Note
   roo> hint
   roo> field string note
   roo> json all
   roo> web mvc setup
   roo> controller all --package ~.controller
   roo> web mvc json all
   roo> quit
   
5. Start Roo Project
   > mvn tomcat:run
   
6. Test Roo Project
   - browse to http://localhost:8080/klarblick and create a new Note
   - get a REST Client for your browser
   - JSON GET Request on: http://localhost:8080/klarblick/note/1
   Don't forget the request header: Accept: application/json