GlassFish v3 comes bundled with Metro  - a secure, reliable, transactional, and .NET interoperable Web services stack. Metro is compliant with JAX-WS  and provides additional quality of service attributes that can be easily enabled using NetBeans IDE .
This blog contains a screencast that shows how to create a simple Web service using NetBeans 6.8, implement the business logic by accessing a database table using Java Persistence API , and deploy on GlassFish v3 .
Please post your questions to email@example.com .
Several other screencasts on GlassFish v3and related topics are available here .