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    Title Page
    Copyright Page
    Deitel® Series Page
    Dedication
    Trademarks
    Contents
    Preface
    Before You Begin
    1. Introduction to Computers and the Internet
    2. Introduction to HTML5: Part 1
    3. Introduction to HTML5: Part 2
    4. Introduction to Cascading Style Sheets™ (CSS): Part 1
    5. Introduction to Cascading Style Sheets™ (CSS): Part 2
    6. JavaScript: Introduction to Scripting
    7. JavaScript: Control Statements I
    8. JavaScript: Control Statements II
    9. JavaScript: Functions
    10. JavaScript: Arrays
    11. JavaScript: Objects
    12. Document Object Model (DOM): Objects and Collections
    13. JavaScript Event Handling: A Deeper Look
    14. HTML5: Introduction to canvas
    15. XML
    16. Ajax-Enabled Rich Internet Applications with XML and JSON
    17. Web Servers (Apache and IIS)
    18. Database: SQL, MySQL, LINQ and Java DB
    19. PHP
    20. Web App Development with ASP.NET in C#
    21. Web App Development with ASP.NET in C#: A Deeper Look
    22. Web Services in C#
    23. Web App Development with ASP.NET in Visual Basic
    A. HTML Special Characters
    B. HTML Colors
    C. JavaScript Operator Precedence Chart
    D. ASCII Character Set
    Index
    24. Web App Development with ASP.NET in VB: A Deeper Look
    25. Web Services in Visual Basic
    26. JavaServer™ Faces Web Apps: Part 1
    27. JavaServer™ Faces Web Apps: Part 2
    28. Web Services in Java
    28.1. Introduction
    28.2. Web Service Basics
    28.3. Simple Object Access Protocol (SOAP)
    28.4. Representational State Transfer (REST)
    28.5. JavaScript Object Notation (JSON)
    28.6. Publishing and Consuming SOAP-Based Web Services
    28.7. Publishing and Consuming REST-Based XML Web Services
    28.8. Publishing and Consuming REST-Based JSON Web Services
    28.9. Session Tracking in a SOAP Web Service
    28.10. Consuming a Database-Driven SOAP Web Service
    28.11. Equation Generator: Returning User-Defined Types
    Summary
    Self-Review Exercises
    Answers to Self-Review Exercises
    Exercises
    29. HTML5 WebSockets and Web Workers [This content is currently in development.]
    E. Number Systems
    F. Unicode®
    Online Access
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    28. Web Services in Java

    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.

    • How to connect to databases from web services.


      

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