In my previous article I showed you how you can implement a reusable Liferay Service without using Ext or  the Service Builder utility. In this article we will take it one step further and expose the service we have created as web service again without using Ext or the Service Builder.

Liferay exposes the services based on Axis using a separate web application called tunnel-web. We will hook into tunnel-web so our service will be exposed in exactly the same way Liferay services are externalized. Let’s get started.
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In Liferay you can split your application logic vertically exposing each component as a separate independent service. This service can be consumed by your portlet applications and any other applications. Liferay itself exposes several services to you: GroupService (for managing communities) and UserService (for managing users) for example. In this article I will show you how you can create a reusable service yourself and host it in Liferay.

In this article we will build a simple hello world service, nothing to fancy (I want to leave something for you to do yourself ). We will code the service from scratch without using tools like service builder.

The project will contain 3 modules:

1. A library containing the service contract
2. A web application implementing the service contract
3. A web application consuming the service

I hope you like this article, please let me know if you have any questions or comments. Lets get started. I assume you have read my previous article about using Maven to build Liferay applications. If not please read it first.
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