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Java EE 8 Application Development

You're reading from   Java EE 8 Application Development Develop Enterprise applications using the latest versions of CDI, JAX-RS, JSON-B, JPA, Security, and more

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Product type Paperback
Published in Dec 2017
Publisher Packt
ISBN-13 9781788293679
Length 372 pages
Edition 1st Edition
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Author (1):
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David R. Heffelfinger David R. Heffelfinger
Author Profile Icon David R. Heffelfinger
David R. Heffelfinger
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Table of Contents (15) Chapters Close

Preface 1. Introduction to Java EE FREE CHAPTER 2. JavaServer Faces 3. Object Relational Mapping with the Java Persistence API 4. Enterprise JavaBeans 5. Contexts and Dependency Injection 6. JSON Processing with JSON-P and JSON-B 7. WebSocket 8. Java Messaging Service 9. Securing Java EE Applications 10. RESTful Web Services with JAX-RS 11. Microservices Development with Java EE 12. Web Services with JAX-WS 13. Servlet Development and Deployment 14. Configuring and Deploying to GlassFish

Developing web services with JAX-WS

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; 
    } 
...
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