Application Development with GWT

480 Pages·2008·5.47 MB·English

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Books for professionals By professionals® The eXperT’s Voice® in WeB DeVelopmenT
Companion
eBook Available
CCoovveerrss
Pro Web 2.0 Application GGWWTT 11..55
Pro
Development with GWT
Pro
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Dear Reader,
e
This book is for developers who are ready to move beyond small proof-of-concept
sample applications and want to look at the issues surrounding a real deploy- b Web 2.0
ment of GWT. If you want to see what the guts of a full-fledged GWT application
look like, this is the book for you. 2
GWT 1.5 is a game-changing technology, but it doesn’t exist in a bubble. Real
.
deployments need to connect to your database, enforce authentication, protect 0
against security threats, and allow good search engine optimization.

To show you all this, we’ll look at the code behind a real, live web site called A
ToCollege.net. This application specializes in helping students who are applying p
Application Development
to colleges; it allows them to manage their application processes and compare p
the rankings that they give to schools. It’s a slick application that’s ready for you li
c
to sign up for and use.
a
This book will give you a walking tour of this modern Web 2.0 start-up’s code-
t GWT
base. The included source code will provide a functional demonstration of how io
to merge together the modern Java stack including Hibernate, Spring Security, n
Spring MVC 2.5, SiteMesh, and FreeMarker. This fully functioning application is
D
with
better than treasure if you’re a developer trying to wire GWT into a Maven build
e
environment who just wants to see some code that makes it work. If a full tour of v
15,000 lines of source code that includes everything from Google Gears integration e
to Acegi Security, OpenID, Lucene full-text searching, and Google Maps sounds lo
like a good thing, I think you’ll enjoy this book. p
m
Yours,
e
Jeff Dwyer n
t Learn real-world, professional GWT techniques by

w
Companion eBook following an in-depth case study of a Web 2.0 site.
RelATeD TiTleS i
t
h

G

W
See last page for details
on $10 eBook version
T

Jeff Dwyer
SOURCE CODE ONLINE ISBN-13: 978-1-59059-985-3 D
www.apress.com ISBN-10: 1-59059-985-3 w
54499 y
e
r
US $44.99
Shelve in
Web Development
User level:
9 781590 599853
Intermediate–Advanced
this print for content only—size & color not accurate spine = 0.909" 480 page count

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Pro Web 2.0 Application
Development with GWT
Jeff Dwyer
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Pro Web 2.0 Application Development with GWT
Copyright © 2008 by Jeff Dwyer
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ISBN-13 (pbk): 978-1-59059-985-3
ISBN-10 (pbk): 1-59059-985-3
ISBN-13 (electronic): 978-1-4302-0638-5
ISBN-10 (electronic): 1-4302-0638-1
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To those who help me realize it’s easier than we think
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Contents at a Glance
About the Author.................................................................xvii
About the Technical Reviewer......................................................xix
Acknowledgments................................................................xxi
Introduction.....................................................................xxiii
PART 1 n n n What Can GWT Do for You?
nCHAPTER 1 Why GWT?......................................................3
nCHAPTER 2 Getting Started ................................................17
PART 2 n n n ToCollege.net
nCHAPTER 3 Designing ToCollege.net .......................................47
nCHAPTER 4 GWT and Spring MVC ..........................................63
nCHAPTER 5 Securing Our Site.............................................103
nCHAPTER 6 Saving Our Work..............................................139
nCHAPTER 7 ToCollege.net’s GWT GUI......................................181
nCHAPTER 8 Google Maps .................................................213
nCHAPTER 9 Suggest Boxes and Full Text Search...........................237
nCHAPTER 10 Forums.......................................................265
nCHAPTER 11 Security and Authorization....................................307
nCHAPTER 12 Search Engine Optimization...................................333
nCHAPTER 13 Google Gears.................................................357
nAPPENDIX Building ToCollege.net........................................391
nINDEX .......................................................................427
v
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Contents
About the Author.................................................................xvii
About the Technical Reviewer......................................................xix
Acknowledgments................................................................xxi
Introduction.....................................................................xxiii
PART 1 n n n What Can GWT Do for You?
nCHAPTER 1 Why GWT?....................................................3
“May You Live in Interesting Times”................................3
ToHTML or Not to HTML?.........................................4
So What Is GWT?.................................................5
But JavaScript Is Better Than Java!............................6
Speed......................................................8
Tools,Tools,Tools .........................................11
JavaScript Libraries.........................................12
Community................................................13
The Rest of the Stack .......................................13
Maven 2...................................................14
Summary.......................................................15
nCHAPTER 2 Getting Started..............................................17
Sample Project Goals............................................17
GWT Project Structure ...........................................18
Client .....................................................19
Server ....................................................21
Public.....................................................22
The GWT Module...........................................23
vii
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viii nCONTENTS
Sample Calculator Project Code...................................24
NumberButton.java.........................................25
ControlButton.java..........................................27
Calculator.java (1) ..........................................28
ControlAction.java ..........................................29
Calculator.java.............................................30
The EntryPoint Class........................................35
CalcButton:A CSS Enhancement .............................36
Animation......................................................38
Code Size ......................................................40
The Advantages of Compilation...............................41
Pure Size..................................................42
Summary.......................................................44
PART 2 n n n ToCollege.net
nCHAPTER 3 Designing ToCollege.net....................................47
User Stories ....................................................48
User Story1:Adding a School................................48
User Story2:Adding Opinions of Schools......................48
User Story3:Sorting Schools into Tiers .......................48
User Story 4:Viewing Schools on a Map.......................48
User Story5:Deciding Among Schools........................49
User Story 6:Managing the Application Process................49
What’s Next................................................49
Overview of ToCollege.net........................................49
My Rankings List...........................................49
My Applications ............................................51
My Decision ...............................................52
Maps .....................................................53
College Browser............................................53
Forums....................................................54