Struts & hibernate ppt

A PRESENTATION ON
STRUTS & HIBERNATE
PANKAJ KUMAR
INSTITUTE OF TECHNOLOGY AND MANAGEMANT
GWALIOR (MP)

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Struts Agenda
 Software Crises
 What is Framework
 Model1 & Model2
 What is Struts?
 Why we need it
 Features of struts
 Controller Elements & it’s Responsibilities
 Model Elements & Responsibilities
 View Elements & Responsibilities

Challenges Exist In Software
Development & Software Crisis
 Project must be developed Quickly.
 Project must be in High-Quality.
 Easy to maintain.
 Easy to test.
 Better separation of concerns.

What is Framework & It’s Advantages
Framework:-
 A software framework is a re-usable design for a software system (or
subsystem).
 A framework is pre-built assembly of components and we can extend it.
Advantages:-
 Provides a procedure for the development of Application.
 Save developers time.
 It also reduces software development & maintenance costs.
 Provides low level services that developers can use to speedup developments.
 Provides same approach for all developers for developing code & Consistency
in software design.

Model1 & Model2
Model1:-
 In the Model 1 the JSP page is responsible for processing
the incoming request & replying back to the client.

Disadvantages of Model 1 Architecture
 It does not have separate controller.
 This Architecture usually leads to a significant amount of
java code embedded within the JSP page.
 Time consuming.
 Hard to extend:- It is better for small application not for
large application.
 Navigation control is Decentralized :- Every page contains
the logic to determine the next page.

Model 2 Architecture
 Model2 is based on the MVC(Model View Controller) design pattern.
 Model:- Represents data & Business logic of the Application.
 View:- Responsible to Display Data. It represent the presentation.
 Controller:- Acts as an Interface between View & Model.

Model 2 Architecture Advantages &
Disadvantages
 Navigation control is Centralized:- Now only controller contains the
logic to determine the next page.
 Easy to maintain.
 Easy to extend.
 Easy to Test.
 Better Separation of concerns.
Disadvantages:-
 We need to write the controller code self. If we change the controller
code, we need to recompile the class file.

What is Struts ? & its Features
 An Open source web Application framework based on J2EE & java
which implements the MVC design pattern is called Struts.
Features:-
 Configurable MVC components.
 POJO based action.
 AJAX support.
 Integration support.
 Various Result types.
 Various Tag support.
 Theme & Template support.

Struts Framework Components
 Controller Components:- Direct the Action
 Model Components :- Access Data & System
 View Components: What the user see

The Architecture & Basic flow of Struts 2

Basic Flow Description
 User sends a request for the action.
 Controller Invokes the Action Invocation.
 Action Invocation invokes each interceptors and action.
 A result is generated.
 The result is sent back to the Action Invocation.
 A HTTPServletResponse is generated.
 Response is sent to the user.

References
Tutorialspoint.com
 Javatpoint.com

Struts & hibernate ppt

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