GlassFish 4 + JAX-RS Filter with @EJB

问题

I'm developing an REST application using Glassfish 4.0.

In resource classes I can get injection to work by making the class @Stateless and injecting via @EJB (injected class is an stateless EJB).

However this approach does not work in an JAX-RS filter. I cannot get injection to work at all.

See code below:

@Provider
public class UpdateFilter implements ContainerRequestFilter {

    @EJB
    private MyBeanInterface doStuffBean;

    @Override
    public void filter(ContainerRequestContext requestContext) {

        ...
    }
}

doStuffBean is always null.

Any suggestions?

回答1:

I believe the @EJB only works in Java EE managed classes like other EJBs and Servlets.

If you are using CDI you could use @Inject annotation instead but if this class is not a ManagedBean then you will need to do a lookup.

回答2:

Try to use CDI by replacing @Stateless by @ManagedBean and @EJB by @Inject. This works for me in JAX-RS.

If you need EJB for other things than injection it may work for you to keep the double annotation @Stateless @ManagedBean.

来源：https://stackoverflow.com/questions/17951001/glassfish-4-jax-rs-filter-with-ejb