What Is Spring Framework In Java | Spring Framework Tutorial For Beginners With Examples | Edureka

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https://www.edureka.co/spring-frameworkEDUREKA SPRING FRAMEWORK CERTIFICATION TRAINING

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Agenda For Today
Modules
Spring Framework
Why Spring Framework?
Java Frameworks
Spring Features
Architecture

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Java Frameworks

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Java Frameworks
So much of code !!!!

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Java Frameworks
Need something that
is fast and efficient

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Java Frameworks
Ohh! I can use Java
Framework!

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Java Frameworks
This fits with my
code too !

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Java Frameworks
Problem Solved !!

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Java Frameworks
Applications speed
and efficiency
increased

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Java Framework Principle
Abides the Hollywood Principle that is “Don’t call us, we’ll call you”.
Also called Inversion of flow or Inversion of Control
Class A
Class A
Class C
Class B
Class B
Class C
Injection
Dependency

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Different Java Frameworks

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Spring Origin
First version of Spring was first released on
February 2003, By Rod Johnson.
Spring has been hosted on SourceForge since
January 2003.

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Spring History
YEAR
2003 2007 2009 2011 2013 20152004 2006 2016
0.9
2.5
2.0
1.0
3.1
4.0
4.2.0
4.3
3.0

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Definition
Spring is a complete and a modular framework
for developing enterprise applications in java.
spring framework can be
used for all layer
implementations for
a real time application
spring can be used for
the development of
particular layer of a
real time application

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Features Of Spring
Open Source Comprehensive
Tool
Light Weight Solves Problems Framework of
Frameworks
Avails array of
resources

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Uses Of Spring Over Other Frameworks

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Why Spring Is So Popular ?
S I M P L I C I T Y
T E S TA B L I T Y
L O O S E C O U P L I N G
These 3 are basically the main reasons for its popularity.
Lets now understand how they are exactly making it so

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T E S TA B L I T Y
Simplicity
Spring framework is simple because as it is non-invasive.
It uses POJO and POJI
If a java class is not coupled with any technology (or) any
framework then that java class is called “POJO” (plain old
java class)
public class MyClass
{ …
…
…
}
S I M P L I C I T Y

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T E S TA B L I T Y
Simplicity
If a java interface is not coupled with any technology (or)
any frame work then such java interface is called “POJI”
(plain old java interface)
public interface MyInterface
{ …
…
…
}
S I M P L I C I T Y

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S I M P L I C I T Y
Actually for writing the spring application, server
[Container] is not mandatory because it has it own
container to run the applications
Spring Container
Final Result
Java POJO Classes
Ready To Use
Application
MetaData
Testablity
T E S TA B L I T Y

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S I M P L I C I T Y
T E S TA B L I T Y
Spring objects are loosely coupled, this is
the core concept of spring framework
class Rider
{
Bike b;
public void setBike(Bike b)
{
this.b = b;
}
void ride()
{
b.start();
}
}
Interface Bike
{
void start();
}
BajajHonda Yamaha
Classes
Spring container will inject either Honda object or Bajaj object
or Yamaha object into the Rider class by calling setter method
Loose Coupling

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Spring Framework Ecosystem

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Spring Architecture

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Core Container
Data Access/Integration
Web
AOP (Aspect Oriented Programming)
Instrumentation
Test
o The Spring Framework contains a lot of features, which are well-organized in about twenty
modules.
o These modules can be grouped together based on their primary features into following:
Spring Modules

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CoreContainer
Provide the
fundamental parts
of the framework
Provides
BeanFactory
Supports
internationalizatio
n (I18N), EJB, JMS,
Basic Remoting
Provides a
powerful
expression
language
Core
ContextSpEL
Beans
Modules-Core Container

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DataAccess
Provides a JDBC-
abstraction layer
Provides
integration layers
Provides an
abstraction
Supports
programmatic and
declarative
transaction
management
JDBC
OXMTransaction
ORM
Contains features
for producing and
consuming
messages
JMS
Modules-Data Access

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Web
Provides basic
web-oriented
integration
features
Contains Spring's
Model-View-
Controller (MVC)
implementation
Provides support
for WebSocket-
based, two-way
communication
Provides the MVC
implementation
used in a portlet
environment
Web
Web SocketWeb Portlet
Web MVC
Modules-Web

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Miscellaneous
Provides an
aspect-oriented
programming
implementation
Provides
integration with
AspectJ
Provides class
instrumentation
support and class
loader
implementations
Supports the
testing of Spring
components with
JUnit or TestNG
frameworks
AOP Instrumenting
Test Aspects
Provides support
for STOMP as the
WebSocket sub-
protocol to use in
applications
Messaging
Modules-Miscellaneous

IoC
Dependency
Injection
AOP
MVC

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IoC Container Features
Creating The Object
Configuring Them
Managing Their Complete Life Cycle
Wiring Them Together

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IoC Container
The Spring IoC container by using Java POJO
classes and configuration metadata produces a
fully configured and executable system or
application.
Spring Container
Final Result
Java POJO Classes
Ready To Use
Application
MetaData

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IoC Container
Configured by loading the XML files or by detecting specific Java
annotations on configuration classes.
Two types of IoC containers :
BeanFactory
ApplicationContext

Dependency
Injection
AOPIoC
MVC

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Dependency Injection
Removes the dependency from the programming code
Makes the Application easy to manage and test
Makes our programming code loosely coupled

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Types Of Dependency Injection
Spring framework avails two ways to inject dependency :
By Constructor
By Setter method
1
2 The <property> subelement of <bean>
is used for setter injection
The <constructor-arg> subelement of
<bean> is used for constructor injection

AOP
Dependency
Injection
IoC
MVC

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Aspect Oriented Programming
Providing modularity with aspect rather than class.1
AOP breaks the program logic into distinct parts called concerns2
A cross-cutting concern is a concern which can affect the entire application4
Increases modularity by cross-cutting concerns3

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Aspect Oriented Programming
Module 2
Application
Module 3
Crosscutting concern is applicable throughout the application and it affects the entire application modules
Module 1
Cross
cutting
concern

MVC
AOPIoC
Dependency
Injection

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Model View Controller
User input is interpreted by the controller and are transformed into a model which is represented to the
user by the view.
Controller
View
Model
Request
Response
User
Browser

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Summary
Java Frameworks Why Spring Frameworks ?Spring Framework
Architecture Spring FeaturesModules

Thank You …
Questions/Queries/Feedback

What Is Spring Framework In Java | Spring Framework Tutorial For Beginners With Examples | Edureka

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