What s new in Spring 3.1?

Transcription

1 What s new in Spring 3.1? Arjen SpringSource - a division of VMware 1

2 Overview Spring 3.0 Spring 3.1 Release Schedule 2

3 Spring 3.0 3

4 Spring 3.0 Themes Java 5+ Spring Expression Language REST support Declarative model validation Early support for Java EE 6 4

5 Spring 3.1 5

6 Spring 3.1 Themes Environment abstraction Java application configuration Cache improvements 6

7 Environment Abstraction 7

8 Development Integration Testing Pre- Production Production Application Spring IDE Tomcat tc Server tc Server Cloud Foundry SpringSource Confidential. Do not distribute without express permission 8

9 The Environment Challenge Various environments Development in IDE Integration testing in container Pre-production in container Production New: the Cloud Bonus challenge: immutable artefacts 9

10 Current solutions JNDI Only works in container System Properties Requires access to environment Separate application contexts Separate artefacts PropertyPlaceHolder- Configurer & friends Separate artefacts Requires access to environment Relatively confusing 10

11 Dependency Injection Simple Object AOP Portable Service Abstractions SpringSource Confidential. Do not distribute without express permission 11

12 Environment Abstraction Group bean definitions by profile e.g. development, testing, production Specify which environment to use 12

13 Group Beans 13

14 Grouping Beans (2) 14

15 Activate Profile 15

16 Activate Profile (2) System properties -Dspring.profiles.active= dev -Dspring.profiles.default= common TestContext Framework 16

17 Java Application Configuration 17

18 Java-Based Application Configuration XML JavaConfig FactoryBean Builders GenericXmlContextLoader AnnotationConfigContextLoader 18

19 @Enable 19

20 @EnableAspectJAutoProxy 20

21 c Namespace 21

22 Cache Abstraction 22

23 Caching Pluggable! 23

24 @Cacheable 24 24

25 Cache Configuration 25

26 Cache Providers Two available implementations EhCache ConcurrentMap JSR 107 Pluggable! 26

27 @MVC Improvements 27

28 @MVC Introduced in Spring 2.5 Major improvements in 3.0 REST Further improvements in 3.1 Complete refactoring 28

29 @MVC arguments and return values Arguments ModelAndView ServletRequest Return Types ResponseEntity HttpEntity, 29

30 Behind the Curtains 30

31 Custom argument and return value handlers 31

32 @MVC 2.0 Enabled by default 32

33 Consumes and Produces Two new elements on the RequestMapping annotation Consumes: consumable media types Content-Type header Produces: producible media types Accept header 33

34 Consumes 34

35 Produces 35

36 added to model Uri templates in redirect: locations Servlet 3.0 support no web.xml asynch requests file upload support 36

37 Summary 37

38 Spring 3.1 Environment and Profiles Java-based Configuration improvements Testing and Profiles Cache Abstraction MVC and REST Improvements Servlet 3.0 c: Namespace 38

39 Release Schedule RC1 out yesterday! GA Soon Spring 3.2 Java SE 7 JDBC 4.1, JSF 2.2, JPA 2.1 Fork-join 39

40 Q & A If time permits... 40