Table of Contents
Jersey provides an extension to support Spring DI. This enables Jersey to use Spring beans as JAX-RS components (e.g. resources and providers) and also allows Spring to inject into Jersey managed components.
The Spring extension module configuration is based on annotations. Spring beans are injected and JAX-RS classes are made Spring managed using annotations. Injected Spring beans can have further dependencies injected using Spring XML configuration. Spring singleton and request scopes are supported.
To enable JAX-RS resources to work Spring functionality that requires proxying, such as Spring transaction management
(with @Transactional), Spring Security and aspect oriented programming (such as @Aspect), the resources
must themselves be managed by Spring, by annotating with @Component, @Service,
@Controller or @Repository:
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import org.springframework.stereotype.Component;
@Component
@Path("/")
public class SomeResource {
@Transactional
@GET
public void updateResource() {
// ...
}
}
Limitations:
Spring beans can't be injected directly into JAX-RS classes by using Spring XML configuration
If you want to use Jersey Spring DI support
you will need to add the jersey-spring4 module into the list of your dependencies:
<dependency>
<groupId>org.glassfish.jersey.ext</groupId>
<artifactId>jersey-spring4</artifactId>
<version>2.45</version>
</dependency>
The above module adds transitive dependencies on Spring modules. See jersey-spring4 module dependencies for more details about list and scope of dependencies. Please note the module depends on The Spring/HK2 Bridge that is used to inject Spring services into HK2 services or inject HK2 services into Spring services.
To use capabilities of Jersey Spring 3 DI support in your JAX-RS/Jersey application you need to have the above mentioned module on your class-path.
To see an example of Spring DI support in Jersey refer to the Spring DI Example.