• The Google Web Toolkit’s Approach to Ajax

  Page 2

• Getting Started

  Page 4

• Creating An Application Using the CLI Tools

  Page 5

• The GWT’s Directory Structure

  Page 8

• Modules

  Page 8

• GWT Compiler and Web Mode

  Page 9

• Host Mode

  Page 11

• + Demo Application

  Page 13

  • The Server Side

    Page 16

  • HTML File

    Page 18

  • Java Source

    Page 19

  • Using a Subset of the J2SE

    Page 23

  • GUI Classes

    Page 24

  • Cascading Style Sheets

    Page 24

  • Displaying User Messages

    Page 25

  • Inheriting Other Modules

    Page 27

  • Using the JSON Module

    Page 28

  • Accommodating Different Languages

    Page 30

  • Specifying a Certain Locale for a Web Page

    Page 33

  • Building the Application with Ant

    Page 34

  • JUnit Testing

    Page 34

  • Finally, The Back Button

    Page 37

  • Teaching History

    Page 38

• Conclusion

  Page 40

The Google Web Toolkit (GWT) is a nifty framework that Java programmers can use to create Ajax applications. The GWT allows you to create an Ajax application in your favorite IDE, such as IntelliJ IDEA or Eclipse, using paradigms and mechanisms similar to programming a Java Swing application. After you code the application in Java, the GWT's tools generate the JavaScript code the application needs.

You can also use typical Java project tools such as JUnit and Ant when creating GWT applications. The GWT is a free download, and you can freely distribute the client- and server-side code you create with the framework. This shortcut explains how to get started with the GWT, and then demonstrates how to create a simple Ajax application.