introduction to springmvc

8/14/2019 Introduction to Springmvc

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Spring MVC

Spring MVC

Introduction


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Spring MVC

Peter Maas ~ Works at Finalist IT

Group. 70% Developer, 20%

Architect and 10% CTO Board.

Techniques used daily include Java/ JEE, Spring, Hibernate, JSP.

Passionate about scripting language

for the JVM like Groovy and JRuby.

[email protected] maas-frensch.com/peter/


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Spring MVC

Introduction to Spring MVC & Web Flow


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Spring MVC

Spring ~ A Layered Java/JEE

application framework. The most

complete lightweight container,

providing centralized, automated

configuration and wiring of your

application objects.

Spring


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Spring MVC

Why Spring (I)

Key reasons

To provide a non-invasive programming model. As far as

possible, application code should be decoupled from the

framework.

To provide a superior solution to in-house infrastructure,

so that developers can focus on delivering business value

rather than solving generic problems.

To make developing enterprise applications as simple as

possible, but enhancing, rather than sacrificing, power.


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Spring MVC

Why Spring (II)


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Spring MVC

Equals

myRepository = new MyRepositoryImpl();

myService = new MyServiceImpl();

myService.setMyRepository(myRepository);

myService.setMaxResults(10);

Spring basics


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Spring MVC

Equals

myRepository = new MyRepositoryImpl();

myService = new MyServiceImpl(10, myRepository);

Spring basics (II)


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Spring MVC

Demo I~ Basics of Spring

Demo I


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Spring MVC

Integration

Services

Web

Domain

Model

User Interface

Typical SpringMVC Architecture

Spring MVC territory

Business logic

Connections to exernalsystems (database,

webservices)


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Spring MVC

MVC

Actor

View

Model

Controller

request

response


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Spring MVC

Controller ~ Controllers interpret

user input and transform such input

into a sensible model which will be

represented to the user by the view.

Controller


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Spring MVC

publicinterface Controller {

/**

* Process the request and return a* ModelAndView object which the DispatcherServlet* will render.*/ModelAndView handleRequest(

HttpServletRequest request,

HttpServletResponse response) throws Exception;

}

If you find yourselfimplementing the

controller interfaceyou're probable doing

stuff the hard way!

Controller Interface


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Spring MVC

interfaceController

AbstractController

SimpleFormController AbstractWizardFormController

ParameterizableViewController

BaseCommandController

AbstractFormController

AbstractCommandController

MultiActionController

UrlFilenameViewController

Controllers


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Spring MVC

Model

Model~ The domain-specific

representation of the information on

which the application operates.

List results =new ArrayList();

model.addObject("searchResults", results);

List r =(List)model.get("searchResults");


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Spring MVC

View

View ~ Renders the model into a

form suitable for interaction,

typically a user interface element.Multiple views can exist for a single

model for different purposes.


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Spring MVC

view

RedirectView

InternalResourceView

AbstractJasperReportsView

AbstractTemplateView

AbstractView

AbstractExcelView

AbstractUrlBasedView

AbstractExcelView

AbstractPDFView

AbstractXsltView

AbstractJExcelView ...

...

JstlView

TilesView

Views

TilesJstlView


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Spring MVC

Handlers ~ map incoming web requests to appropriate handlers.

or

Handlers


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Spring MVC

Demo II ~ Putting it all to work,

making a simple "Hello World"Spring MVC application.

Demo II


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Spring MVC

Demo II~ Classpath essentials

spring-webmvc.jar

commons-logging.jar

logkit.jar

spring-beans.jar

spring-context.jaraopalliance.jar

spring-core.jar

spring-support.jar

spring-web.jar

log4j.jar


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Spring MVC

More to come ~ Complex forms,

Binding, Validation, Interceptors,

Internationalisation, Webflow,Ajax ...

internet


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Spring MVC

Multicast / RMI Cache replication

Application servers (web)

Database cluster

Backoffice &cron jobs

internet

JDBC JDBC

internet

signon.vpro.nl

REST (https)

REST (https)

belbios

Firewall &Loadbalancer

ActiveDirectory

LDAP

MMBase

SOAP (http)

NFS

XML

3rd party systems(NEBO/DONNA)

scp

introduction to springmvc

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