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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!
