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Internet & World Wide Web: How to Program, Fifth Edition by Abbey Deitel, Harvey Deitel, Paul Deitel

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28. Web Services in Java

A client is to me a mere unit, a factor in a problem.

—Sir Arthur Conan Doyle

They also serve who only stand and wait.

—John Milton

...if the simplest things of nature have a message that you understand, rejoice, for your soul is alive.

—Eleonora Duse

Protocol is everything.

—Francoise Giuliani

Objectives

In this chapter you will learn:

• What a web service is.

• How to publish and consume web services in NetBeans.

• How XML, JSON, XML-Based Simple Object Access Protocol (SOAP) and Representational State Transfer (REST) Architecture enable Java web services.

• How to create client desktop and web applications that consume web services.

• How to use session tracking in web services to maintain client state information. ...

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