Liferay Portal开发官方指南：Liferay in Action

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"Liferay in Action完整版 - 一本关于Liferay Portal Development的官方指南，由Richard Sezov Jr.撰写，Brian Kim作序。" Liferay in Action是Manning Publications出版的一本详尽的官方指南，专注于Liferay Portal的开发。这本书由Richard Sezov Jr.编著，他是一位在Liferay技术方面具有深厚经验的专业人士，而Brian Kim的序言则为读者提供了额外的洞察力。Liferay是一个开源的企业级门户平台，它提供了一系列工具和服务，用于构建和管理数字体验。本书旨在帮助开发者、系统管理员和项目经理深入了解Liferay Portal的功能和架构。内容涵盖了Liferay的基础知识，如安装和配置，以及更高级的主题，如自定义主题和布局、portlet开发、工作流集成、安全性和性能优化。作者通过实例和实践指导，让读者能够逐步掌握Liferay的使用和开发。书中详细讲解了以下关键知识点： 1. **Liferay简介**：介绍Liferay Portal的基本概念，包括其核心功能、生态系统和社区支持。 2. **安装与设置**：指导读者如何在各种操作系统上安装和配置Liferay，包括数据库连接和服务器配置。 3. **用户界面与定制**：讨论Liferay的UI设计，以及如何创建和修改主题以满足个性化需求。 4. **Portlets开发**：讲解portlet的基本原理，以及如何使用Java和Web框架（如Spring MVC）创建和部署portlet应用。 5. **服务和API**：深入探讨Liferay的服务层，包括Service Builder和API的使用，以便与其他系统集成。 6. **数据存储与检索**：解释Liferay的数据模型，以及如何利用JSP、Velocity和FreeMarker模板进行数据展示。 7. **权限与安全**：涵盖Liferay的角色、权限系统，以及实现安全的网站和应用的方法。 8. **社交网络和协作**：介绍Liferay的社交功能，如用户组、论坛和博客，以及如何构建协作环境。 9. **工作流集成**：讨论如何利用Liferay的内置工作流引擎，以及与其他工作流系统的集成。 10. **性能和扩展性**：提供优化Liferay性能的策略，包括缓存、集群和负载均衡。 11. **部署与维护**：分享最佳实践，确保Liferay部署的稳定性和可维护性。 12. **社区和生态系统**：介绍Liferay的社区资源，如论坛、市场-place和开发工具，以促进持续学习和开发。 "Liferay in Action"是学习和精通Liferay Portal开发的重要资源，无论你是初学者还是有经验的开发者，都能从中受益。通过阅读此书，你将能够有效地利用Liferay构建高效、安全且高度定制化的数字解决方案。

preface

I was sitting in the back of the Liferay Car (yes, Liferay owns an old, beat-up Toyota

Corolla), and Brian Kim, Liferay’s Chief Operating Officer, was sitting next to me, giv-

ing me a hard time. I was already uncomfortable in the back seat: I’m 6'2", and my

knees were up next to my ears. But it was only a short trip from the Liferay Symposium

hotel in Anaheim, CA, to Brian Chan’s house (where we and the other occupants of

the car were staying), so I wouldn’t have to endure the cramped quarters for long.

You see, I’d written a couple of editions of Liferay’s Administrator’s Guide, but its

companion volume, the Developer’s Guide, had suffered several aborted attempts at get-

ting off the ground. It had finally achieved some semblance of completion, but it

wasn’t yet where I wanted it to be. The problem was, I needed to release some devel-

oper documentation soon, so I could get to work on the training materials and the

documentation for the next release of Liferay. For this reason, I’d resigned myself to

publishing what we had and then attempting to make the next edition of the book

more complete. We’d been self-publishing the Administrator’s Guide, so I thought we

should do the same with the Developer’s Guide, particularly because it wasn’t going to be

as complete as I wished.

Brian wasn’t giving me a hard time because of that: Liferay was in a period of rapid

growth, and we often found ourselves in the position of having more work than we

had hands to complete it. Instead, Brian was giving me a hard time, frankly, because

he had a bigger vision than I had.

“Why do you want to self-publish again?” Brian asked. “Don’t you think it would be

better if we worked with a book publisher?”

PREFACE

xvi

“Of course it would,” I said. “I just think that the material I currently have isn’t yet

up to the standards that one of the two publishers I’d want to work with would

accept.”

“Really? Okay, what would it take to get it that way?”

“Well, I’d have to be able to dedicate more time to writing the book, which I can’t

do right now.” I then gave him my sob story about all the work that I had to finish in

addition to the Developer’s Guide.

“Then let’s hire some people to help you. One problem solved. Who are the two

publishers you’d like to work with?”

I told him. Manning was one of them. The other shall remain nameless.

“Why do you like those guys?” Brian asked.

My only real experience with computer book publishers—before I wrote this

book—was as a reader. Because I’m mostly self-educated with regard to the industry

I’m in, I’ve read a lot of computer books (my degree is in English; how I got into pro-

gramming, Java, and portals is another—longer—story). I answered from that per-

spective.

“I think the quality from those guys is consistently higher than the rest. And, of

course, I’d want Liferay to be represented by that kind of quality. So I’d want to be

able to take the time to deliver something that they’d be willing to publish.”

“Okay, then why don’t we make it a goal to reach out to those publishers, once we

get you some help? I think working with a publisher will help provide us with more vis-

ibility and fill a real need our community has for some good, polished material to get

them up to speed on Liferay.”

“All right, I can do that,” I replied.

Except I never really got the chance.

By the hand of what can only be described as Providence, not even a month later,

Manning reached out to us. I say us because they didn’t reach out to me; they went after

the Liferay rock stars, like Brian Chan, Nate Cavanaugh, and Ray Augé, which makes

perfect sense. But those guys were far too busy to write a book: if they spent time

doing that, Liferay wouldn’t be where it is today. Instead they sent Manning, specifi-

cally Mike Stephens, to little old me, who was supposed to be preparing a proposal to

send to Manning anyway.

Funny how these things work out, isn’t it?

Through a long, circuitous route that I could never have planned, I get to fulfill a

dream of being a published author. It’s not a novel (that may come someday too, I

hope), but I’ve tried to make what could become a dry subject interesting. To me,

there’s nothing dry about Liferay: it’s an exciting product that can do a ton of things,

and I think it’s an ideal platform on which to build a web site. I hope that by the end

of this book, you’ll think so too.

ACKNOWLEDGMENTS

xviii

the help of several of them, but the man I want to mention first is Ray Augé. Ray is one

of the smartest guys I know, and he’s the mind behind many of Liferay’s most robust

features. He took lots of time out of many of his days to help me puzzle out some

undocumented and tricky (at least to me)

APIs—which are now documented in this

book. He didn’t just do this for me, though—he does this for everybody. I have no

idea how he gets his own work done, because he’s constantly putting himself out for

others, yet he consistently delivers on making Liferay better and better with each ver-

sion. Thanks, Ray, for all of your help with this book.

Jorge Ferrer is another one of these guys who seems to achieve the impossible.

Somehow he manages to run the Liferay office in Spain, drive many of Liferay’s proj-

ects, help other people (like me), contribute to Liferay’s core, and heavily involve

himself in Liferay’s community. Always positive, always energetic—quite frankly some-

times it makes me tired just thinking about all he does. Thanks, Jorge.

Thanks to Mike Young for walking me through Liferay’s page composition logic in

chapter 9. That was fun to puzzle out and added an important aspect to the book. In

many ways I also owe Mike for planting the seeds that got me into Liferay in the first

place. Thanks, Mike!

My graphics skills are somewhat lacking, and I definitely want to thank Emily

Young for her awesome fake product images, and Jon Neal for the graphic design of

the Inkwell theme. Believe me, you wouldn’t have wanted to see the versions I was try-

ing to make.

If you’ve read the preface, you know that we had to hire some help for me in order

to make this book possible. That help came in the form of Stephen Kostas. Steve

picked up many of my responsibilities of keeping Liferay’s training materials up to

date and free from error, making it possible for me to make only quick, sideways

glances at the training material for the last year. Thanks, Steve, for being so easy to

work with and so willing to pick up a wide variety of tasks.

I guess I have to move this along faster, or it’ll get to be as long as the book itself.

Thanks to all the trainers who helped keep the training material going while I was

working on the book: Julio Camarero, Juan Fernandez, Olaf Kock, Jonathon Omahen,

Sten Martinez, Alberto Montero, Zsigmond Rab, and Steven Cao. Thanks to Tim Tel-

cik for taking off and running with the

PDF tools.

Speaking of training, special thanks to Ed Shin and Jeff Handa for helping me

maximize my time on the book by organizing various training tasks. Thanks also to

Mike Han for keeping us in line and for your help with my workflow questions.

Thanks to Greg Amerson for the awesome Liferay

IDE/Developer Studio and all of

your excellent feedback. You’re making Liferay development easier every day, man.

To Ivan Cheung and James Min: I wouldn’t be in Liferay without you guys. Thanks!

Neil Griffin is to me the (slightly) older brother I never had. Thanks for your

encouragement and wisdom, Neil.

Thanks to my many coworkers who were so encouraging over the past year: Josh

Asbury, Alice Cheng, Paul Hinz, James Falkner, Michelle Hoshi, JR Houn, Mike

ACKNOWLEDGMENTS

xix

Saechang, Scott Lee, Nate Cavanaugh, Aaron Delani, Craig Kaneko, Ryan Park, Cyn-

thia Wilburn, Charles May, Zsigmond Rab, Zsolt Balogh, Jeff Young, Ed Chung, Jerry

Niu, Jeff Han, Louis Mui, Juan Fernandez, Thiago Moreira, Ruth Huijser, Joe Shum,

and Alex Chow. Thanks to Cecilia Lam for putting up with my hare-brained sympo-

sium ideas (a compliments contest?) so people could win copies of this book.

Manning put together a fantastic team for this book. Thank you, Marjan Bace, for

such a great bunch of people to work with, and for your hands-on approach. Thanks

to Mike Stephens for getting it all started. Lianna Wlasiuk was my developmental edi-

tor, and I am grateful to you, Lianna, for all you did to make this book better. I

learned a great deal about how to put together a quality book manuscript, and I know

it’s going to spill over into my other work in the future.

Thanks to Karen Tegtmeyer for managing the review process so well, and thank

you to all of my reviewers: Sean Hogg, Armin Dahncke, Davide Piazza, Ashish Sarin,

Barbara Regan, Tariq Ahmed, John J. Ryan III, John Griffin, Robert Hanson, Jakub

Holy, James M. Denmark, Pete Helgren, Manish Gupta, Tomáš Polešovský, Sopan She-

wale, Sumit Pal, and John Stevenson. You made the book stronger by your sugges-

tions. Special thanks to Minhchau Dang for doing a final technical review of the

manuscript shortly before it went to press. Thanks also to Mary Piergies, who shep-

herded the book through production, and to my copyeditor, Tiffany Taylor, and my

proofreader, Melody Dolab.

Of course, I also need to thank my mom, Constance Hunter, for believing I could

write books from the time I started making science fiction stories out of my spelling

sentences in the sixth grade.

Thanks most especially to God for His mercy to me, giving me the strength and

stamina to complete the book.

I hope I haven’t forgotten anybody. If I have, it was unintentional—please accept

my apologies and my sincere thanks.

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