Head First Servlets and JSP™, Second Edition, and related trade dress are In other words, if you use anything in Head First Servlets & JSP™ to, say, run a. Head First SQL is at the top of my stack. Heck, even the PDF I have for review is tattered Head O'Reilly - Head First Servlets and JSP, 2nd Edition. Automatically exported from enbillitaco.tk - dieforfree/ edsebooks.
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Praise for Head First Servlets and JSP™. “This Head First Servlets book is as good as theHead First EJB book, which made me laugh AND. S. This PDF is exclusively for your use in accordance with the Safari Terms of Service. Why use Servlets & JSPs? Head First Servlets and JSP By Bert Bates. and. Head First Servlets and JSP - Ebook download as PDF File .pdf), Text File .txt) or read book online. One of the best of J2EE.
Somebody has to get the request and the response to the servlet. Somebody has to manage the life, death, and resources of the servlet.
Time to build it, deploy it, and test it. Next, you need to set up your deployment environment following the servlet and JSP specs and Tomcat requirements. True, this is a small app HttpServletResponse Servlets need help. The request might be simple: And your servlet code has to know how to send a response. Or not You have models, controllers, and views. You have parameters and attributes. You have helper classes. But how do you tie the pieces together?
How do you let components share information? How do you hide information? How do you make information thread-safe? Your job may depend on the answers.
As soon as they send you a response, they forget who you are. But sometimes you need to keep conversational state with the client across multiple requests. You can write Java code in your JSP, but should you? And if not Java code, what do you write? How does it translate into Java code?
Do your web page designers really have to know Java? Do they expect server-side Java programmers to be, say, graphic designers? But there are some traps Sometimes EL behaves differently than if you used the same syntax in Java, so pay attention! What if you want to loop through the data in an array, and display one item per row in an HTML table?
You know you could write that in two seconds using a for loop in a scriptlet. No problem. Exam Objectives Looping without scripting Conditional control with and Using the and tags With , there are now three ways to include content Customizing the thing you include Doing the same thing with for all your hyperlink needs Make your own error pages The tag.
That way, your page designers can use your tag in their pages, while all the hard work is done behind the scenes in your tag handler class.
Of the three, two were introduced with JSP 2. Deploying your web app 11 Finally, your web app is ready for prime time.
Your pages are polished, your code is tested and tuned, and your deadline was two weeks ago. But where does everything go? So many directories, so many rules. What do you name your directories?
What does the client actually request, and how does the Container know where to look? Exam Objectives Tag Files: Trouble lurks in every corner of the network. Does Jim in marketing really need to know that Lisa in engineering makes three times as much as he does?
The power of filters 13 Filters let you intercept the request. And if you can intercept the request, you can also control the response. I strongly believe that the future of software development practice will focus on the practitioner. But hidden behind the funny pictures and crazy fonts is a serious, intelligent, extremely well-crafted presentation of OO Analysis and Design.
This book has a strong opinion of how to design programs, and communicates it effectively. I love the way it uses running examples to lead the reader through the various stages of the design process. As I read the book, I felt like I was looking over the shoulder of an expert designer who was explaining to me what issues were important at each step, and why. The book manages to get across the essentials of object-oriented analysis and design with UML and use cases, and even several lectures on good software design, all in a fast-paced, easy to understand way.
Following the core principles taught in this book will help keep your project on track from start to finish. All rights reserved. Printed in the United States of America. Online editions are also available for most titles safari. March Second Edition. Java and all Java-based trademarks and logos are trademarks or registered trademarks of Sun Microsystems, Inc.
Many of the designations used by manufacturers and sellers to distinguish their products are claimed as trademarks. While every precaution has been taken in the preparation of this book, the publisher and the author assume no responsibility for errors or omissions, or for damages resulting from the use of the information contained herein.
Readers of this book should be advised that the authors hope you remember them, should you create a huge, successful dotcom as a result of reading this book. Bert is a long-time, hopelessly addicted go player, and has been working on a go program for way too long.
Java may finally be a language expressive enough for him to finish the project. His latest adventure is the download of an Icelandic horse which should give his training skills a new challenge Together with Bert Bates, she has been actively using the Head First concepts to teach thousands of developers.
She founded one of the largest Java community websites in the world, javaranch. She likes running, skiing, horses, skateboarding, and weird science.
He also worked for a consulting firm developing custom OO business apps. Bryan is a practicing Zen Buddhist, Ultimate Frisbee player, audiophile, and telemark skier.
Write to us at: art. Who is this book for? How many GUI apps do you know that are used by millions of users worldwide? As a web app developer, you can free yourself from the grip of deployment problems all standalone apps have, and deliver your app to anyone with a browser.
But you need servlets and JSPs. Because plain old static HTML pages are so, well, Learn to move from web site to web app. When a request comes in, somebody has to instantiate the servlet or at least allocate a thread to handle the request. Somebody has to get the request and the response to the servlet.