JAX RS Client API interceptor

问题

Is there a way to add a header into the request via interceptors,but not via explicitly setting a header, when JAX RS Client API is used:

Client client = ClientBuilder.newClient();
Response response = client.target("someUrl").path("somePath").request().get();

In AOP way

回答1:

Create a ClientRequestFilter:

@Provider
public class MyClientRequestFilter implements ClientRequestFilter {

    @Override
    public void filter(ClientRequestContext requestContext) throws IOException {
        requestContext.getHeaders().add("Authorization", "value");
    }
}

And register it in your Client:

Client client = ClientBuilder.newClient().register(MyClientRequestFilter.class);

来源：https://stackoverflow.com/questions/33019983/jax-rs-client-api-interceptor