August 2013
Intermediate to advanced
360 pages
10h 47m
English
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Servlet-Based Web Services Under GlassFish
GlassFish distinguishes between servlet-based and EJB-based web services. Servlet-based services include
REST-style and SOAP-based services of the sort published earlier with Tomcat, Jetty, or a command-line publisher.
EJB-based services also may be REST-style or SOAP-based services implemented as
Session EJBs. For
example, a JAX-RS service might be implemented as a Session EJB. Yet GlassFish and other JASes make it especially attractive to
implement legacy @Stateless EJBs as SOAP-based web services because this requires only an additional annotation,
@WebService.
For
servlet-based services under the JAX-WS umbrella, @WebService and @WebServiceProvider instances, the deployment under
GlassFish is simpler than the deployment under Tomcat because GlassFish includes, among its libraries, the full Metro
implementation of JAX-WS; hence, the Metro JAR files need not be (indeed, should not be) packaged in the deployed WAR file.
GlassFish can handle JAX-WS out of the box.
Among the services in the previous chapters deployed with Tomcat or Jetty, all would count as servlet-based in GlassFish terms. They can be deployed, as is, to GlassFish as servlet-based services. Here is a sample selection of services from Chapters 2 and 5. This review focuses on what needs to be included in a WAR file for GlassFish deployment of servlet-based services.
- predictions2
This is the predictions RESTful service implemented as an
HttpServlet. Here, for review, are the ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.