3. What is Spring?
̵ Comprehensive Programming/Config model
̵ Modern Java-based (JVM) Enterprise
̵ Focus: Lightweight & “Plumbing”
̵ Flexible Dependency Injection
̵ Infrastructure (support) for declarative:
̵ transactions
̵ caching
̵ validation
̵ formatting
BIG SMART DATA
Spring Origin: Rod Johnson (Expert One-on-One J2EE Design and Development)
4. What is Spring?
̵ Powerful abstractions:
̵ JDBC, JPA, JTA, JMS
̵ Support for open source frameworks:
̵ Hibernate, Quartz
̵ Flexible Web Framework for RESTful MVC
̵ Rich testing facilities
BIG SMART DATA
5. ⁻ Modular in design
⁻ Incremental adoption
⁻ Range of deployment
platforms, such as
Tomcat & WebSphere
⁻ Citizen of major clouds
such as Heroku, VMware,
& Amazon
What is Spring?
BIG SMART DATA
6. • Dependency Injection
• Aspect-oriented programming
• Data access framework
• Transaction management framework
• Remote access framework
• Convention-over-configuration
• Model-view-controller framework
BIG SMART DATA
Spring Modules
7. • Inversion of control container
• Uses Java Reflection
• Creates managed objects (“beans”)
• Dependency Lookup
• Dependency Injection Patterns:
• Constructors
• Properties
• Factories
BIG SMART DATA
Dependency Injection
Spring Modules
8. BIG SMART DATA
Dependency Injection
Spring Modules
The Spring
Container
Fully
configured
system
Configuration
Metadata
Your Business
Objects
(POJOs)
produces
9. • AOP:
• increases modularity
• allows for separation of cross-
cutting concerns
BIG SMART DATA
Aspect-oriented framework
Spring Modules
10. • Resource management
• Exception handling
• Transaction participation
• Resource unwrapping
• Abstraction
BIG SMART DATA
Data access framework
Spring Modules
11. • Spring brings transaction abstractions:
• global, local, nested
• Platform TransactionManager
• Transaction Template
• metadata or Java annotations
BIG SMART DATA
Transaction management framework
Spring Modules
12. • Abstraction for various RPC technologies
BIG SMART DATA
Remote access framework
Spring Modules
Convention-over-configuration
• Spring Roo
(http://www.springsource.org/spring-roo)
13. • Request-based framework
• Strategy interfaces
• GOAL: Simple and clear
BIG SMART DATA
MVC Framework
Spring Modules
14. • Front Controller: DispatcherServlet Class
BIG SMART DATA
MVC Framework
Spring Modules
15. • Clear separation of roles:
Each role (controller, validator, command
object, DispatcherServlet, etc) can be fulfilled
by a specialized object
• Configuration of both framework and
application classes as JavaBeans:
BIG SMART DATA
MVC Framework
Spring Modules
16. • Adaptability & flexibility:
Define any controller method signature you
need, possibly using one of the parameter
annotations
• Reusable business code:
Use existing business objects as command or
form objects instead of mirroring them to
extend a particular framework base class
BIG SMART DATA
MVC Framework
Spring Modules
17. • Customizable binding & validation
• Customizable handler mapping & view resolution
• Flexible model transfer:
Model transfer with a name/value Map supports
easy integration with any view technology
• Customizable locale and theme resolution
• Support for JSPs with/without Spring tag library
BIG SMART DATA
MVC Framework
Spring Modules
18. • Support for JSTL
• Support for Velocity without the need for
extra bridges
• Spring tag library for data binding & themes
• JSP form tag library
BIG SMART DATA
MVC Framework
Spring Modules
19. Spring Resources
Tutorials:
Developing a Spring Framework MVC application:
http://static.springsource.org/docs/Spring-MVC-step-by-step/
Introduction to Spring Web MVC:
https://netbeans.org/kb/docs/web/quickstart-webapps-spring.html
Resources:
The Spring Framework:
http://www.springsource.org/spring-framework
Modern Web:
http://www.springsource.org/features/modern-web
NetBeans IDE:
http://netbeans.org
BIG SMART DATA
