精通Ajax与Java框架

需积分: 10 48 浏览量更新于2024-07-29 收藏 10.33MB PDF 举报

"Pro AJAX and Java Frameworks - 由Nathaniel T. Schutta和Ryan Asleson撰写的专业级Web开发指南，深入讲解Java开发者构建Ajax增强型网站所需的知识和技术。" 本书《Pro AJAX and Java Frameworks》是针对Java开发者的一本专业指南，旨在帮助他们掌握如何在Web应用中集成Ajax技术，提升用户体验。Ajax（异步JavaScript和XML）是一种用于创建快速、动态网页的技术，通过在不重新加载整个页面的情况下更新部分网页内容，极大地提升了交互性和响应速度。书中的内容可能涵盖以下几个关键知识点： 1. **Ajax基础**：介绍Ajax的核心概念，包括异步通信、XMLHttpRequest对象的使用、以及如何通过JavaScript处理数据和更新DOM（文档对象模型）。 2. **JavaScript和jQuery**：讲解JavaScript的基础语法和高级特性，以及如何使用流行的jQuery库简化DOM操作和事件处理，提高代码效率。 3. **JSON和XML**：讨论在Ajax通信中数据交换的两种主要格式，包括如何序列化和解析JSON（JavaScript Object Notation）和XML数据。 4. **Java服务器端支持**：介绍如何使用Java服务器端技术如Servlets、JSP（JavaServer Pages）或现代的Java Web框架（如Spring MVC、Struts、Play！框架等）来配合Ajax请求。 5. **Ajax设计模式和最佳实践**：讨论如何优雅地实现Ajax功能，包括错误处理、状态管理、性能优化和兼容性策略。 6. **前端和后端通信**：深入理解Ajax请求的生命周期，包括初始化、发送、接收响应以及更新页面的完整流程。 7. **安全性考虑**：讲解在使用Ajax时需要关注的安全问题，如跨站脚本攻击（XSS）、跨站请求伪造（CSRF）和数据保护。 8. **用户界面和用户体验**：探讨如何利用Ajax提升用户体验，包括平滑的过渡效果、无刷新更新和有效的反馈机制。 9. **实战示例**：通过实际项目或案例研究，展示如何将所学知识应用于真实世界的Web开发场景。 10. **工具和库**：介绍有助于Ajax开发的工具、调试技巧以及常用的第三方库和框架。这本书的作者Nathaniel T. Schutta和Ryan Asleson都是经验丰富的Web开发者，他们的专业知识和实践经验使得本书成为Java开发者学习Ajax技术的理想资源。同时，技术审稿人John R. Fallows的贡献也为内容的准确性和实用性提供了保障。通过阅读此书，读者可以全面掌握将Ajax集成到Java应用程序中的技能，从而构建出更加高效、用户友好的Web应用。

Acknowledgments

A huge thanks to the team at Apress for providing us with another opportunity to express

our passion about Ajax! Thanks to Chris Mills for helping us refine our rough ideas into the

finished product you see before you. Hats off to Richard Dal Porto for keeping us focused

and on schedule. Gregg Bollinger and John Fallows provided valuable feedback that helped

make this a better book. Hastings Hart had the misfortune of fixing our multiple spelling

and grammatical mistakes, and for this we are forever grateful. We thank Laura Esterman

for guiding us through the final production process, and we were thrilled to see our work

transformed from words in a word processor to a formatted book. We appreciate the support

that our agent, Laura Lewin, and the staff at Studio B gave us throughout this adventure.

Nathaniel T. Schutta and Ryan Asleson

First and foremost to my coauthor, Ryan—I can’t thank you enough for your tireless effort

on this book; I don’t know how you did it! I’m proud and honored to have you as a friend

and partner. Thanks to Sara and Adam for your support in this adventure, it was good of

you to share Ryan (again). I can’t thank my wife enough for putting up with me throughout this

book. I couldn’t have done it without your love and patience. During this entire experience

you’ve never lost your head (even when I did), and your faith in me kept me grounded. Often

life only makes sense backwards—but for that one project, I’d have never met Nathan Good,

who gave me the inspiration to write in the first place.

I owe a huge debt to my parents, one that can never be repaid. Without their foresight,

I probably wouldn’t even be in this field. Thanks for seeing the future and making sure I

had the latest hardware. You fueled a passion for reading that has evolved into this new

adventure of writing. Thanks, Mom and Dad—I don’t say it enough! A big thanks to Brent

Ashley for all his support and advice over the last year; his counsel means a lot to me. Special

thanks to Jeff Jensen of the Twin Cities Java User Group, John Collins of the University

of Minnesota, Kasi Periyasamy of the University of Wisconsin at La Crosse, Jim Schnepf

and Mike Heroux of St. John’s University, and Aleh Matus of OTUG for providing us forums

to spread the word on Ajax. We are deeply appreciative for all your help. I know I’ve left

some very deserving people off this list and for that my heartfelt apologies—I only have so

much space! Thanks again to everyone mentioned here and all those who I keep in my heart.

Nathaniel T. Schutta

Asleson _677-3FRONT.fm Page xv Tuesday, June 20, 2006 6:58 AM

xvii

Introduction

We thought we had found the Holy Grail of software development when we started

building web applications several years ago. Previously we had been developing thick

client applications that required a lengthy installation process every time a new version of

the company’s application was released. The application was deployed to several hundred

users scattered across the country, and much to our dismay we had to watch as the complex

and error-prone installation process continually caused headaches and angst for developers

and users alike.

Deploying an application through a browser seemed like a much more palatable option

because it would eliminate the need to install software on the client computer. So, like

many others, our organization moved swiftly to deploying applications to the web.

Despite the relative ease of deployment, web applications still had their share of issues.

Most notable from a user’s perspective was the significant loss of rich interactivity provided

by the user interface. Web applications were constrained to the basic set of widgets provided

by HTML. Worse yet, interacting with the server required a complete refresh of the page,

which was disconcerting to users who were familiar with rich client/server applications.

We always considered this constant need to refresh the page a serious liability of web

applications and often experimented with ways to avoid a page refresh whenever possible.

We even at one point considered writing a Java applet that would handle the communica-

tion between the browser and the server. However, it soon became apparent that as more

web applications were deployed, users simply got used to the constant page refreshes, and

our zeal for finding alternatives slowly faded.

Fast-forward five years. Even before the term Ajax was coined, asynchronous commu-

nication between the browser and server using the XMLHttpRequest object was creating a

buzz within the developer community thanks to applications such as Google Suggest and

Gmail. The XMLHttpRequest object had been available in Internet Explorer for several

years, but now that it was being supported by other browsers, it was poised for a break-

through. We added Ajax functionality to an existing Java application we happened to be

working on at the time, and we were so impressed with the results that we thought, “Hey,

somebody should write a book about this.” Thus, the seeds for this book were sown.

Asleson _677-3FRONT.fm Page xvii Tuesday, June 20, 2006 6:58 AM

xviii

■INTRODUCTION

An Overview of This Book

Pro Ajax and Java is written to give you, the Java developer, all the tools you need to add

Ajax techniques to your existing or future applications. Our motto while writing this book

was, “Everything you need to know; nothing you don’t.” We assume that as a reader of this

book, you are already an experienced web application developer. Because of this, we focus

on the topics that are most likely new to you: Ajax and its associated tools and techniques.

Chapter 1 is a whirlwind tour of Ajax. We cover the basics of the XMLHttpRequest object

along with some of the common gotchas of Ajax development. We also cover some of the

common patterns you’ll see in Ajax development.

Chapter 2 provides an overview of the tools that will make developing Ajax applications

easier. We touch on JavaScript editors, formatters, and obfuscators. Debugging can be a

real pain, which is why we’ve shown you a wealth of tools that treat JavaScript like the first-

class citizen that it is. For starters, we’ll show you how to log without using alerts. Of course

you’ll also want to test your code, which is why we review JsUnit and Selenium, proving

that testing isn’t just for server-side code.

Although Ajax certainly isn’t rocket science, that doesn’t mean you want to do all the

heavy lifting yourself. In Chapter 3 we take a look at a variety of frameworks and toolkits

that you’ll want to leverage to make developing Ajax applications a snap. We’ll review

Dojo, Prototype, script.aculo.us, Taconite, and the Yahoo! library.

Chapter 4 continues our look at libraries, focusing on those that are of particular

interest to the Java developer. We’ll review DWR and AjaxTags, giving you an idea of the

strengths of each library.

The second half of the book shows you how to integrate Ajax techniques into four of the

leading Java frameworks. Chapter 5 discusses the wildly popular Struts framework. We’ll

show you how to take advantage of Struts validation, and we also discuss design consider-

ations with Struts and Ajax.

Chapter 6 covers the component-based Tapestry framework. After an overview of

Tapestry, we show you how to leverage the Ajaxified Tacos components to spiff up your

applications.

You can hardly turn around these days without running into a Spring-based application,

and in Chapter 7, we show you how to leverage Ajax in the Spring space. We show you how

using DWR makes developing Ajaxified Spring applications a snap.

Of course no discussion of Java web frameworks would be complete without a look at

JavaServer Faces. After showing you the basics of JSF, we show you how you can write your

own Ajax components, and we also introduce you to prebuilt Ajax components.

Asleson _677-3FRONT.fm Page xviii Tuesday, June 20, 2006 6:58 AM

剩余333页未读，继续阅读

neuvincent

粉丝: 1
资源: 129

精通Ajax与Java框架

Ubuntu下Android内置应用：Java接口测试Application Frameworks硬件服务

"AJAX入门培训PPT：全面介绍主流框架

Java核心技术 第12版：开发基础与高级特性 英文原版 包含目录信息

Pro Ajax and Java Frameworks

Pro Ajax and Java Frameworks.pdf

javaajax源码-pro-ajax-java-frameworks:NathanielSchutta和RyanAsleson的“ProAj

Apress.Pro.Ajax.and.Java.Frameworks（pdf）

Apress.Pro.Ajax.and.Java.Frameworks.Jul.2006.HAPPY.NEW.YEAR

Apress.Pro.Ajax.and.Java.Frameworks.Jul.2006.HAPPY.NEW.YEAR.rar

Ajax与Java高级程序设计(英文)

最新资源

Java核心技术第12版：开发基础与高级特性英文原版包含目录信息