Java EE is the technology of choice for e-commerce applications, interactive Web sites, and Web-enabled services. Servlet and JSP technology provides the link between Web clients and server-side applications on this platform. Core Servlets and JavaServer Pages, Volume 2: Advanced Technologies, Second Edition, is the definitive guide to the advanced features and capabilities provided by servlets and JSP.
Volume 2 presents advanced capabilities like custom tag libraries, filters, declarative security, JSTL, and Struts. Like the first volume, it teaches state-of-the-art techniques and best practices illustrated with complete, working, fully documented programs.
Volume 2 explains in detail the advanced tools and techniques needed to build robust, enterprise-class applications. You'll learn how to control application behavior through the web.xml deployment descriptor file, how to enhance application security through both declarative and programmatic methods, and how to use servlet and JSP filters to encapsulate common behavior. You'll also learn how to control major application lifecycle events, best practices for using JSTL, and how to build custom tag libraries. Volume 2 concludes with an in-depth introduction to the Jakarta Struts framework.
Complete source code for all examples is available free for unrestricted use at www.volume2.coreservlets.com. For information on Java training from Marty Hall, go to courses.coreservlets.com.
Volume 1 presents comprehensive coverage of the servlets and JSP specifications, including HTTP headers, cookies, session tracking, JSP scripting elements, file inclusion, the MVC architecture, and the JSP expression language. It also covers HTML forms, JDBC, and best practices for design and implementation.
"synopsis" may belong to another edition of this title.
Marty Hall is the president of coreservlets.com, a leading provider of Java training and consulting services. Marty has given courses on Java technologies in seven countries and dozens of U.S. venues, and directs the Java and Web-related concentration areas in the part-time Computer Science graduate program at the Johns Hopkins University. His books include all editions of Core Servlets and JavaServer Pages, More Servlets and JavaServer Pages, and Core Web Programming.
Larry Brown is an IT manager at a U.S. Navy Research and Development Laboratory, and coauthor of Core Web Programming, Second Edition (Prentice Hall, 2001).
Yaakov Chaikin, senior consultant at a software development company based in Columbia, MD, heads the Web Development track at Loyola College's graduate computer science program.Excerpt. © Reprinted by permission. All rights reserved.:
Suppose your company wants to sell products online. You have a database that gives the price and inventory status of each item. However, your database doesn't speak HTTP, the protocol that Web browsers use. Nor does it output HTML, the format Web browsers need. What can you do? Once users know what they want to buy, how do you gather that information? You want to customize your site for visitors' preferences and interests, but how? You want to keep track of user's purchases as they shop at your site, but what techniques are required to implement this behavior? When your Web site becomes popular, you might want to compress pages to reduce bandwidth. How can you do this without causing your site to fail for those visitors whose browsers don't support compression? In all these cases, you need a program to act as the intermediary between the browser and some server-side resource. This book is about using the Java platform for this type of program.
"Wait a second," you say. "Didn't you already write a book about that?" Well, yes. In May of 2000, Sun Microsystems Press and Prentice Hall released Marty Hall's second book, Core Servlets and JavaServer Pages. It was successful beyond everyone's wildest expectations, selling approximately 100,000 copies, getting translated into Bulgarian, Chinese simplified script, Chinese traditional script, Czech, French, German, Hebrew, Japanese, Korean, Polish, Russian, and Spanish, and being chosen by Amazon.com as one of the top five computer programming books of 2001. What fun!
Since then, use of servlets and JSP has continued to grow at a phenomenal rate. The Java 2 Platform has become the technology of choice for developing e-commerce applications, dynamic Web sites, and Web-enabled applications and service. Servlets and JSP continue to be the foundation of this platform--they provide the link between Web clients and server-side applications. Virtually all major Web servers for Windows, UNIX (including Linux), Mac OS, VMS, and mainframe operating systems now support servlet and JSP technology either natively or by means of a plug-in. With only a small amount of configuration, you can run servlets and JSP in Microsoft IIS, the Apache Web Server, IBM WebSphere, BEA WebLogic, Oracle Application Server 10g, and dozens of other servers. Performance of both commercial and open-source servlet and JSP engines has improved significantly.
To no one's surprise, this field continues to grow at a rapid rate. As a result, we could no longer cover the technology in a single book. Core Servlets and JavaServer Pages, Volume 1: Core Technologies, covers the servlet and JSP capabilities that you are likely to use in almost every real-life project. This book, Volume 2: Advanced Technologies, covers features that you may use less frequently but are extremely valuable in robust applications. For example,
Who Should Read This Book
The main audience is developers who are familiar with basic servlet and JSP technologies, but want to make use of advanced capabilities. As we cover many topics in this book--the deployment descriptor file, security, listeners, custom tags, JSTL, Struts, Ant--you may want to first start with the technologies of most interest, and then later read the remaining material. Most commercial servlet and JSP Web applications take advantage of the technologies presented throughout, thus, at some point you may want to read the complete book.
If you are new to servlets and JSPs, you will want to read Core Servlets and Java-Server Pages, Volume 1: Core Technologies. In addition to teaching you how to install and configure a servlet container, Volume 1 provides excellent coverage of the servlet and JSP specifications. Volume 1 provides the foundation material to this book.
Both books assume that you are familiar with basic Java programming. You don't have to be an expert Java developer, but if you know nothing about the Java programming language, this is not the place to start. After all, servlet and JSP technology is an application of the Java programming language. If you don't know the language, you can't apply it. So, if you know nothing about basic Java development, start with a good introductory book like Thinking in Java, Core Java, or Core Web Programming, all from Prentice Hall.
Throughout the book, concrete programming constructs or program output are presented in a monospaced font. For example, when abstractly discussing server-side programs that use HTTP, we might refer to "HTTP servlets" or just "servlets," but when we say HttpServlet we are talking about a specific Java class.
User input is indicated in boldface, and command-line prompts are either generic (Prompt> ) or indicate the operating system to which they apply (DOS> ). For instance, the following indicates that "Some Output" is the result when "java SomeProgram" is executed on any platform.Prompt> java SomeProgram
URLs, file names, and directory names are presented in a sans serif font. So, for example, we would say "the StringTokenizer class" (monospaced because we're talking about the class name) and "Listing such and such shows SomeFile.java" (sansserif because we're talking about the file name). Paths use forward slashes as in URLs unless they are specific to the Windows operating system. So, for instance, we would use a forward slash when saying "look in install_dir/bin" (OS neutral), but use backslashes when saying "see C:\Windows\Temp" (Windows specific).
Important standard techniques are indicated by specially marked entries, as in the following example.
Pay particular attention to items in Core Approach sections. They indicate techniques that should always or almost always be used.
Core Notes and Core Warnings are called out in a similar manner.
About the Web Site
The book has a companion Web site at http://volume2.coreservlets.com/. This free site includes:
"About this title" may belong to another edition of this title.
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