Hour 22. Creating Web Services with JAX-WS

What You’ll Learn in This Hour:

• Defining a Java interface for a web service

• Applying this interface to a Java class

• Deploying a web service on the Internet

• Viewing a web service contract

• Creating a web service client

Now that the Internet is everywhere, driving millions of desktop computers, web servers, phones, videogame consoles, and other devices, the desire to connect them all together has given rise to web services, software that communicates with other software over HTTP, the protocol of the Web.

One of the most exciting new features of Java is the Java API for XML Web Services (JAX-WS). JAX-WS is a set of packages and classes that create clients that make requests of web services and services that take those requests.

JAX-WS supports web services that are implemented using the Simple Object Access Protocol (SOAP) and Representational State Transfer (REST). JAX-WS greatly simplifies the task of supporting these protocols. As a programmer, you create Java objects and call methods to use web services and the rest is taken care of behind the scenes.