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Java Server
Team 8
Overview
 What is a Java Server?
 History
 Architecture
 Advantages
 Disadvantages
 Current Technologies
 Conclusion
History
 Inadequacies of the web-static pages.
 Dot com boom.
 The growing need for dynamic web content.
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CGI Scripts
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Perl
C, C++
Visual Basic Script
Active Server Pages
 The demand for application integration.
Introduction to Java Server
 Encompasses a broad
range of topics.
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Servlets
Java Server Pages
Java Application
Server
 In simple terms, defined
as an instance of a JVM.
 One server can handle
multiple requests.

Threading
Servlets
 A Java servlet is a platform-independent Web
application component.
 It is simply a Java class (a file containing
bytecodes) that is loaded in the Java Virtual
Machine (JVM) environment
 As an applet extends the functionality of a
browser, the Java servlet extends a server.
The applet is an amazing client program, and
the servlet is an amazing server program.
Architecture
 Servlet overview
Architecture... Servlet
Here HTML code is embedded in Java code.
Java Server Pages
 Java Server Pages (JSPs) technology was
developed by Sun Microsystems to separate the
development of dynamic Web page content from
static HTML page design.
 This is useful in the development life-cycle because
the Web page designers do not have to know how to
create the dynamic content, but simply have to know
where to place the dynamic content within the page.
 Platform independence
 Can be developed on any platform and viewed by any
browser
 Component reuse
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Make use of Object Oriented concepts
Architecture… JSP
Here Java code is embedded in HTML code.
Java Application Server
 Java application servers are extensions of Web
servers that provide the ability to execute server-side
Java code.
 All modern Java application servers (including IBM's
WebSphere) are comprehensive runtime platforms
that do much more than serve dynamic Web pages
and run Java code as a result of an HTTP request.
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Support for persistence, transactions, security,
Extensible Markup Language (XML), and most recently
Web services technologies such as Simple Object
Access Protocol (SOAP) and Universal Description,
Discovery, and Integration (UDDI).
Java Server Advantages
 Popular and widely supported
 Efficient
Memory Management
 Easy integration
 Platform independence
 Multithreaded
 Works well with other
technologies like:
 SOAP
 XML
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Java Server Disadvantages
 Usually slow for web based
applications.
 Not feasible for small/medium
sized applications

Better for small/medium
applications.
 PHP
 Perl
Current Technologies
 IBM WebSphere
 BEA WebLogic
 Oracle 9i
Application
Server
 Apache Tomcat
Conclusion
 Neither free nor open
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source like PHP, Perl
Efficient for large and
enterprise applications
Portable
Economical
Secure
Last but not the least,
powerful…
Pay attention… it may
help on your next job
interview!