Autodiscover JAX-RS resources with CXF in a Spring application

Question

Is it possible with Apache CXF (2.7.0) to automatically discover JAX-RS resources in the classpath? That is, classes annotated with @Path.

Answer 1

In addition to what has been suggested: it works indeed in 3.0.0-milestone2, one would just do a top level jaxrs server declaration only and set basePackages attribute which may have one or more space separated package names.

Answer 2

This code does the trick:

@Configuration
@ComponentScan
@ImportResource({"classpath:META-INF/cxf/cxf.xml"})
public class Context {
    @Autowired
    private ApplicationContext ctx;

    @Bean
    public Server jaxRsServer() {
        LinkedList<ResourceProvider> resourceProviders = new LinkedList<>();
        for (String beanName : ctx.getBeanDefinitionNames()) {
            if (ctx.findAnnotationOnBean(beanName, Path.class) != null) {
                SpringResourceFactory factory = new SpringResourceFactory(beanName);
                factory.setApplicationContext(ctx);
                resourceProviders.add(factory);
            }
        }

        JAXRSServerFactoryBean factory = new JAXRSServerFactoryBean();
        factory.setBus(ctx.getBean(SpringBus.class));
        factory.setProviders(Arrays.asList(new JacksonJsonProvider()));
        factory.setResourceProviders(resourceProviders);
        return factory.create();
    }
}

Just remember to put CXFServlet into your web.xml and you are done.

Answer 3

Tested and working in cxf 3.0.4.

<jaxrs:server address="/" basePackages="a.b.c"/>

Dont forget to mention the cxf-servlet in web.xml

Answer 4

It doesn't look like there's a way to do this with Spring configuration at this time in CXF 2.7. If you look at resteasy they've implemented a BeanFactoryPostProcessor SpringBeanProcessor.java that looks for @Path and @Provider. Something similar could be probably be done in CXF but it doesn't appear to be implemented yet. Looks like you're not the only one interested CXF-3725