JAX-WS is a high-level API that simplifies the development of SOAP-based web services. JAX-WS stands for Java API for XML Web Services. Developing a web service via JAX-WS consists of writing a class with public methods to be exposed as web services. The class needs to be decorated with the @WebService annotation. All public methods in the class are automatically exposed as web services. They can optionally be decorated with the @WebService annotation. The following example illustrates this process:
package net.ensode.glassfishbook; import javax.jws.WebMethod; import javax.jws.WebService; @WebService public class Calculator { @WebMethod public int add(int first, int second) { return first + second; } @WebMethod public int subtract(int first, int second) { return first - second; } }
The preceding class exposes its two methods as web services. The add() method simply adds the two int primitives...