GWT 1.5与Spring框架深度集成：构建下一代Web 2.0应用

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"Pro Web 2.0 Application Development with GWT" 是一本深入探讨使用Google Web Toolkit (GWT) 进行专业级Web 2.0应用开发的著作，由Jeff Dwyer撰写并由Apress出版。该书在GWT 1.5版本的基础上，详细讲解了如何与Spring等流行的框架进行集成，以便于开发者构建高效、交互性强的Web应用程序。在当今的IT领域，Web 2.0应用开发凭借其动态、用户参与度高和数据驱动的特点，已经成为许多企业的核心需求。GWT，作为一个开源的JavaScript框架，允许开发者使用Java编写客户端代码，然后编译成可以在浏览器中运行的JavaScript，从而实现了Java开发的便捷性和跨平台性，特别适合那些需要高性能、安全性和可维护性的企业级应用。书中涵盖了GWT的基本概念和技术，包括如何设置项目结构、组件化开发、数据绑定、事件处理、异步通信（如RESTful API调用）以及GWT与Spring框架的集成。Spring是一个广泛使用的轻量级应用框架，它的依赖注入和模块化设计使得与GWT结合可以简化复杂的应用架构，提高开发效率。作者Jeff Dwyer通过本书不仅传授GWT的最佳实践，还展示了如何利用GWT的强大功能来创建富互联网应用，如用户界面的优化、AJAX技术的应用、以及如何处理大量数据和实现高效的用户体验。此外，书中还可能包含对GWT的安全性、性能优化和调试策略的讨论，以确保开发出的Web 2.0应用能够满足现代企业的严苛标准。版权方面，所有内容受版权保护，未经版权所有者和出版商的书面许可，禁止任何形式的复制或传输。本书提供纸版（ISBN-13: 978-1-59059-985-3 和 ISBN-10: 1-59059-985-3）和电子版（ISBN-13: 978-1-4302-0638-5 和 ISBN-10: 1-4302-0638-1），体现了对知识产权的尊重。 "Pro Web 2.0 Application Development with GWT" 是一本实用的指南，旨在帮助读者掌握如何使用GWT开发出功能强大且具有现代化特性的Web 2.0应用，是任何寻求提升Java技能并在Web开发领域保持竞争力的开发者的重要参考资料。

Introduction

xxiii

When I quit my day job in the summer of 2006 to bring an idea of mine to life as an

Internet startup, I was faced with a huge number of questions and not a lot of clear

answers. The excitement of starting a new project was soon tempered by the difficulty of

choosing among the dizzying array of possible technical platforms and solutions. While

the shelves were full of books focusing on each of the components of a web application,

what I really wanted was a look at how all the pieces fit together.

Too often, I found books that seemed like annotated versions of Javadocs, with help-

ful explanatory notes that

setEnabled(boolean enabled) would set the enabled flag. At the

other end of the spectrum were abstract architectural tracts that might have made for

good reading but certainly didn’t give me a head start on the architecture. I wanted to see

how these technologies worked when used for nontrivial applications; I wanted to see

ugly problems and their solutions—I wanted a look at the source code of a modern web

application.

For those of us who learned HTML and JavaScript by using the View Source option,

there’s nothing like getting your hands on working source code. So I had an idea: what if

I created a company, a real, functional company, with a modern web site and then gave

you the keys to the castle to go poke around? That’s the goal of this book, to give you the

tour of a cool, state of the art Web 2.0 application.

The main content of this book focuses on developing one big site with the Google

Web Toolkit (GWT). In the summer of 2006, GWT 1.0.21 had been freshly released, and I

had the good fortune to give it a test drive. It turned out to be a fortuitous choice. Work-

ing in an unfunded start-up shines a powerful spotlight on the relationship between

writing code and getting results. The only thing worse than struggling for hours to get

your site to work in different browsers is not getting paid for those hours! Programming

with GWT meant I didn’t need to get a master’s degree in browser compatibilities and

that I could refactor my code quickly and easily as my ideas changed. Most importantly,

programming in GWT was fun.

There’s a lot of material in this book that isn’t purely related to GWT, which, in my

mind, is a good thing. I could’ve cropped out some of this information to make things

more focused, but it seems to me that this interplay between things is precisely what

takes the most time to figure out on your own, and that discussing this interplay is the

area in which this book can be most valuable. Walking through online tutorials is usually

enough to get your head around one technology, but getting all the elements to play

nicely together is where the rubber hits the road.

9853FM.qxd 4/15/08 11:14 AM Page xxiii

Excerpted for InfoQ from 'Pro Web 2.0 Application Development' by Jeff Dwyer, published by Apress - www.apress.com

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