Vyoms OneStopTesting.com - Testing EBooks, Tutorials, Articles, Jobs, Training Institutes etc.
OneStopGate.com - Gate EBooks, Tutorials, Articles, FAQs, Jobs, Training Institutes etc.
OneStopMBA.com - MBA EBooks, Tutorials, Articles, FAQs, Jobs, Training Institutes etc.
OneStopIAS.com - IAS EBooks, Tutorials, Articles, FAQs, Jobs, Training Institutes etc.
OneStopSAP.com - SAP EBooks, Tutorials, Articles, FAQs, Jobs, Training Institutes etc.
OneStopGRE.com - of GRE EBooks, Tutorials, Articles, FAQs, Jobs, Training Institutes etc.
Bookmark and Share Rss Feeds

JSP Architecture | Articles | Recent Articles | News Article | Interesting Articles | Technology Articles | Articles On Education | Articles On Corporate | Company Articles | College Articles | Articles on Recession
Sponsored Ads
Hot Jobs
Fresher Jobs
Experienced Jobs
Government Jobs
Walkin Jobs
Placement Section
Company Profiles
Interview Questions
Placement Papers
Resources @ VYOMS
Companies In India
Consultants In India
Colleges In India
Exams In India
Latest Results
Notifications In India
Call Centers In India
Training Institutes In India
Job Communities In India
Courses In India
Jobs by Keyskills
Jobs by Functional Areas
Learn @ VYOMS
GATE Preparation
GRE Preparation
GMAT Preparation
IAS Preparation
SAP Preparation
Testing Preparation
MBA Preparation
News @ VYOMS
Freshers News
Job Articles
Latest News
India News Network
Interview Ebook
Get 30,000+ Interview Questions & Answers in an eBook.
Interview Success Kit - Get Success in Job Interviews
  • 30,000+ Interview Questions
  • Most Questions Answered
  • 5 FREE Bonuses
  • Free Upgrades


Wipro Technologies
Tata Consultancy Services
Cognizant Technologies

Home » Articles » JSP Architecture

JSP Architecture

Article Posted On Date : Monday, January 25, 2010

JSP Architecture

There are two basic ways of using the JSP technology. They are the client/server (page-centric) 2-tier approach and the N-tier approach (dispatcher).

The Page-Centric Approach

Applications built using a client-server (2-tier) approach consist of one or more application programs running on client machines and connecting to a server-based application to work. With the arrival of Servlets technology, 2-tier applications could also be developed using Java programming language. This model allows JSPs or Servlets direct access to some resource such as database or legacy application to service a client's request. The JSP page is where the incoming request is intercepted, processed and the response sent back to the client. JSPs differ from Servlets in this scenario by providing clean code, separating code from the content by placing data access in EJBs. Even though this model makes application development easier, it does not scale up well for a large number of simultaneous clients as it entails a significant amount of request processing to be performed and each request must establish or share a potentially scarce/expensive connection to the resource in question.

Page-view - This basic architecture involves direct request invocations to a server page with embedded Java code, and markup tags which dynamically generate output for substitution within the HTML. This approach has been blessed a number of benefits. It is very straightforward and is a low-overhead approach from a developerment perspective. All the Java code may be embedded within the HTML, so changes are confined to a very limited area, reducing complexity drastically.

The big trade-off here is in the level of sophistication. As the scale of the system grows, some limitations begin to surface, such as bloating of business logic code in the page instead of factoring forward to a mediating Servlet or factoring back to a worker bean. It is a fact that utilizing a Servlet and helper beans helps to separate developer roles more cleanly and improves the potential for code reuse.

Page-view with bean - This pattern is used when the above architecture becomes too cluttered with business-related code and data access code. The Java code representing the business logic and simple data storage implementation in the previous model moves from the JSP to the JavaBean worker. This refactoring leaves a much cleaner JSP with limited Java code, which can be comfortably owned by an individual in a web-production role, since it encapsulates mostly markup tags.

The Dispatcher Approach

In this approach, a Servlet or JSP acts as a mediator or controller, delegating requests to JSP pages and JavaBeans. There are three different architectures. They are mediator-view, mediator-composite view and service to workers.

In an N-tier application, the server side of the architecture is broken up into multiple tiers. In this case, the application is composed of multiple tiers, where the middle tier, the JSP, interacts with the back end resources via another object or EJBs component. The Enterprise JavaBeans server and the EJB provide managed access to resources, support transactions and access to underlying security mechanisms, thus addressing the resource sharing and performance issues of the 2-tier approach.

The first step in N-tiered application design should be identifying the correct objects and their interaction and the second step is identifying the JSPs or Servlets. These are divided into two categories.

Front end JSPs or Servlets manage application flow and business logic evaluation. They act as a point to intercept the HTTP requests coming from the users. They provide a single entry point to an application, simplifying security management and making application state easier to maintain.

Presentation JSPs or Servlets generate HTML or XML with their main purpose in life being presentation of dynamic content. They contain only presentation and rendering logic.

These categories resemble to the Modal-View design pattern, where the front-end components is the model and the presentation component the view. In this approach, JSPs are used to generate the presentation layer and either JSPs or Servlets to perform process-intensive tasks. The front-end component acts as the controller and is in charge of the request processing and the creation of any beans or objects used by the presentation JSP, as well as deciding, depending on the user's actions, which JSP to forward this request to. There is no processing logic within the presentation JSP itself and it simply responsible for retrieving any objects or beans that may have been previously created by the Servlet and extracting the dynamic content for insertion within static templates.

Sponsored Ads

Interview Questions
HR Interview Questions
Testing Interview Questions
SAP Interview Questions
Business Intelligence Interview Questions
Call Center Interview Questions


Clipper Interview Questions
DBA Interview Questions
Firebird Interview Questions
Hierarchical Interview Questions
Informix Interview Questions
Microsoft Access Interview Questions
MS SqlServer Interview Questions
MYSQL Interview Questions
Network Interview Questions
Object Relational Interview Questions
PL/SQL Interview Questions
PostgreSQL Interview Questions
Progress Interview Questions
Relational Interview Questions
SQL Interview Questions
SQL Server Interview Questions
Stored Procedures Interview Questions
Sybase Interview Questions
Teradata Interview Questions

Microsof Technologies

.Net Database Interview Questions
.Net Deployement Interview Questions
ADO.NET Interview Questions
ADO.NET 2.0 Interview Questions
Architecture Interview Questions
ASP Interview Questions
ASP.NET Interview Questions
ASP.NET 2.0 Interview Questions
C# Interview Questions
Csharp Interview Questions
DataGrid Interview Questions
DotNet Interview Questions
Microsoft Basics Interview Questions
Microsoft.NET Interview Questions
Microsoft.NET 2.0 Interview Questions
Share Point Interview Questions
Silverlight Interview Questions
VB.NET Interview Questions
VC++ Interview Questions
Visual Basic Interview Questions

Java / J2EE

Applet Interview Questions
Core Java Interview Questions
Eclipse Interview Questions
EJB Interview Questions
Hibernate Interview Questions
J2ME Interview Questions
J2SE Interview Questions
Java Interview Questions
Java Beans Interview Questions
Java Patterns Interview Questions
Java Security Interview Questions
Java Swing Interview Questions
JBOSS Interview Questions
JDBC Interview Questions
JMS Interview Questions
JSF Interview Questions
JSP Interview Questions
RMI Interview Questions
Servlet Interview Questions
Socket Programming Interview Questions
Springs Interview Questions
Struts Interview Questions
Web Sphere Interview Questions

Programming Languages

C Interview Questions
C++ Interview Questions
CGI Interview Questions
Delphi Interview Questions
Fortran Interview Questions
ILU Interview Questions
LISP Interview Questions
Pascal Interview Questions
Perl Interview Questions
PHP Interview Questions
Ruby Interview Questions
Signature Interview Questions
UML Interview Questions
VBA Interview Questions
Windows Interview Questions
Mainframe Interview Questions

Copyright © 2001-2022 Vyoms.com. All Rights Reserved. Home | About Us | Advertise With Vyoms.com | Jobs | Contact Us | Feedback | Link to Us | Privacy Policy | Terms & Conditions
Placement Papers | Get Your Free Website | IAS Preparation | C++ Interview Questions | C Interview Questions | Report a Bug | Romantic Shayari | CAT 2022

Fresher Jobs | Experienced Jobs | Government Jobs | Walkin Jobs | Company Profiles | Interview Questions | Placement Papers | Companies In India | Consultants In India | Colleges In India | Exams In India | Latest Results | Notifications In India | Call Centers In India | Training Institutes In India | Job Communities In India | Courses In India | Jobs by Keyskills | Jobs by Functional Areas

Testing Articles | Testing Books | Testing Certifications | Testing FAQs | Testing Downloads | Testing Interview Questions | Testing Jobs | Testing Training Institutes

Gate Articles | Gate Books | Gate Colleges | Gate Downloads | Gate Faqs | Gate Jobs | Gate News | Gate Sample Papers | Gate Training Institutes

MBA Articles | MBA Books | MBA Case Studies | MBA Business Schools | MBA Current Affairs | MBA Downloads | MBA Events | MBA Notifications | MBA FAQs | MBA Jobs
MBA Job Consultants | MBA News | MBA Results | MBA Courses | MBA Sample Papers | MBA Interview Questions | MBA Training Institutes

GRE Articles | GRE Books | GRE Colleges | GRE Downloads | GRE Events | GRE FAQs | GRE News | GRE Training Institutes | GRE Sample Papers

IAS Articles | IAS Books | IAS Current Affairs | IAS Downloads | IAS Events | IAS FAQs | IAS News | IAS Notifications | IAS UPSC Jobs | IAS Previous Question Papers
IAS Results | IAS Sample Papers | IAS Interview Questions | IAS Training Institutes | IAS Toppers Interview

SAP Articles | SAP Books | SAP Certifications | SAP Companies | SAP Study Materials | SAP Events | SAP FAQs | SAP Jobs | SAP Job Consultants
SAP Links | SAP News | SAP Sample Papers | SAP Interview Questions | SAP Training Institutes |

Copyright ©2001-2022 Vyoms.com, All Rights Reserved.
Disclaimer: VYOMS.com has taken all reasonable steps to ensure that information on this site is authentic. Applicants are advised to research bonafides of advertisers independently. VYOMS.com shall not have any responsibility in this regard.