Copyright 2010 TCloud Computing Inc.

Spring Framework IntroductionAlex Su2010/06/14

Agenda

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• Concept– IOC(Inverse of Control and Dependency Injection)–AOP(Aspect-Oriented Programming)

• Core Technologies–Architecture–Xml v.s. Annotation–SpEL–Testing

• Integration–CXF(web services and restful services)

IOC

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• IOC Type• Type 1 : interface injection• Type 2 : setter injection• Type 3 : constructor injection

AOP

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AOP

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AOP

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• Aspect• Advice• Interceptor• Introduction• Joinpoint• Pointcut• Target• Proxy• Weave

AOP

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AOP

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@Aspectclass BeforeExample { @Before("execution(* com.xyz.myapp.dao.*.*(..))") public void doAccessCheck() { // ... }}

@Aspectclass AfterReturningExample { @AfterReturning("com.xyz.myapp.SystemArchitecture.dataAccessOperation()") public void doAccessCheck() { // ... }}

AOP

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@Aspectclass AroundExample { @Around("com.xyz.myapp.SystemArchitecture.businessService()") public Object doBasicProfiling(ProceedingJoinPoint pjp) throws Throwable { // start stopwatch Object retVal = pjp.proceed(); // stop stopwatch return retVal; }}

Pointcut designator

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• execution(modifiers-pattern? ret-type-pattern declaring-type-pattern? name-pattern(param-pattern) throws-pattern?)

• execution(public * *(..))• execution(* com.xyz.service.AccountService.*(..))

• within(com.xyz.service.*)• within(com.xyz.service..*)

• this(com.xyz.service.AccountService)

• target(com.xyz.service.AccountService)

Architecture

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Architecture

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Architecture

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• Bean Scope• Singleton• Prototype• Request• Session• Custom

Architecture

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Architecture

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Xml v.s. Annotation

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public class SimpleMovieLister { private MovieFinder movieFinder;

public void find() { movieFinder.find(); }

public void setMovieFinder(MovieFinder movieFinder) {

this.movieFinder = movieFinder; }}

Xml v.s. Annotation

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<bean id="movieFinder" class="com.sample.MovieFinder"/>

<bean id="simpleMovieLister” class="com.sample.SimpleMovieLister">

<property name="movieFinder"> <ref local="movieFinder"/>

</property></bean>

Xml v.s. Annotation

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@Service

public class SimpleMovieLister {

@Resource

private MovieFinder movieFinder;

public void find() {

movieFinder.find();

}

}

Xml v.s. Annotation

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• stereotype annotations• @Component• @Service• @Controller• @Repository

Controller Service Repository

SpEL

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• Literal expressions• Properties, Arrays, Lists, Maps, Indexers• Methods• Operators• Assignment• Types• Constructors• Variables• User defined functions• Ternary Operator• Elvis Operator• Safe Navigation operator• Collection Selection• Collection Projection• Expression templating

Testing

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@RunWith(SpringJUnit4ClassRunner.class)@ContextConfiguration(locations = { "classpath:appContext_core.xml",

"classpath:appContext_index.xml”})public abstract class AbstractTestCase {

}

Testing

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• Spring-specific annotations–@TransactionConfiguration–@BeforeTransaction–@AfterTransaction–@IfProfileValue–@ExpectedException–@Timed–@Repeat

CXF

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• JAX-WS Support–SOAP 1.1, 1.2

• RESTful services–JSON & XML support

• WS-* Support–WS-Addressing, WS-Policy, WS-ReliableMessaging

and WS-Security

• Spring Integration• Bus

–Fast Infoset

CXF

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• RESTful services–JAX-RS–JAX-WS Provider and Dispatch–HTTP Binding(deprecated)

CXF

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• Parameters–@PathParam–@QueryParam–@HttpHeader–@MatrixParam–@FormParam–@CookieParam–PathSegment

Reference

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• http://caterpillar.onlyfun.net/Gossip/• http://www.springsource.org/• http://cxf.apache.org/

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THANK YOU!