Creating a web service in MyEclipse 5 or 6 and deploying to Tomcat application server.
Well, I can't say it is difficult, but I think the link below that points to a MyEclipse tutorial is great. It gave me everything I needed to get started.
The tutorial is also in the documentation included in MyEclipse 6 (maybe 5 also, I don't know). The tutorial is called "MyEclipse Code-First Web Services Tutorial" if you want to search the included doc for it. It is the same either way. Your choice. ;)