spring3 overview

7/27/2019 Spring3 Overview

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Spring FrameworkSpring Framework

Overview & ToolsOverview & Tools

Sang ShinSang Shinwww.javapassion.comwww.javapassion.com

Learning is fun!Learning is fun!

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Topics

What is Spring framework?

Why Spring framework?

Spring framework architecture Usage scenario

Tools (we are going to use in this course)


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What is SpringWhat is SpringFramework?Framework?


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What is Spring Framework?

Light-weight yet comprehensive framework forbuilding Java applications Web applications

Enterprise applications

Desktop applications

Batch application

Integration/SOA application


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Key Features - DI

JavaBeans-based configuration management,applying Inversion-of-Control principles,specifically using the Dependency Injection (DI)

technique This aims to eliminate manual wiring of components

A core bean factory, which is usable globally

Spring MVC uses it internally


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Key Features - Persistence

Generic abstraction layer for databasetransaction management

Higher abstraction over JDBC

Integration with persistence frameworks such asHibernate, JPA


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Key Features - Web-Tier

Spring MVC web application framework, built oncore Spring functionality, supporting manytechnologies for generating views, including

JSP, Facelets, FreeMarker, Velocity, Tiles,iText, and POI(Java API to Access MicrosoftFormat files).

Spring Web Flow - fine-grained navigation


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Key Features - AOP

Extensive aspect-oriented programming (AOP)framework for providing services such astransaction management, security support

As with the Inversion-of-Control parts of the system,this aims to improve the modularity of systemscreated using the framework.


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Why UseWhy UseSpring Framework?Spring Framework?


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Why Use Spring?

Wiring components (JavaBeans) throughDependency Injection

Promotes de-coupling among the parts that make upan application

Design to interfaces

Insulates a user of a functionality from implementationdetails

Test-Driven Development (TDD)

POJO classes can be tested without being tied up withthe framework


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Why Use Spring? (Continued) Declarative programming through AOP

Easily configured aspects, esp. transaction support

Simplify use of popular technologies Abstractions insulate application from specifics,

eliminate redundant code

Underlying technology specifics still accessible

Handle common error conditions


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Why Use Spring? (Continued) Conversion of checked exceptions to

unchecked

(Or is this a reason not to use it?) Not an all-or-nothing solution

Extremely modular and flexible

Well designed Easy to extend Many reusable classes


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Why Use Spring? (Continued) Integration with other technologies

EJB (for Java EE applications)

JPA, Hibernate, iBates, JDBC (for data access) Velocity, etc. (for presentation)

JSF, Wicket, Struts, etc (For web)


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Spring FrameworkSpring FrameworkArchitectureArchitecture


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Spring Framework Architecture


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Usage ScenariosUsage Scenarios


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Usage Scenarios

You can use Spring in all sorts of scenarios,from applets up to fully-fledged enterpriseapplications using Spring's transaction

management functionality and web frameworkintegration


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Typical Full-fledged Spring WebApplication


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Spring Middle-tier Using 3rd partyWeb Framework


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Remoting Usage Scenario


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ToolsTools


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SpringSource Tool Suite (STS)

Eclipse-powered development environment forbuilding Spring-powered enterprise applications

Supports Java, Spring, Groovy and Grails

Comes with developer edition of vFabric tcServer

vFabric tc Server is Tomcat that is optimized forSpring


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Eclipse and Tomcat

You can use Eclipse and Tomcat for buildingand deploying Spring application

You have to install m2eclipse Maven plug-in's

to Eclipse IDE yourself Core and WTP m2eclipse plug-in's

You have to install and configure Tomcat toEclipse IDE yourself


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JRebel

JVM plug-in that detects any change in Springapplication Java, annotations, configurationfiles and make the changes instantly visible

Commercial product You can get 3-month free license from

http://www.javapassion.com/getjrebel

Usage of JRebel is optional for this course but isrecommended


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Thank you!Thank you!

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