[@ @Method在注入时返回null

Question

我的@Produces方法有问题。当我在Api Request类中注入ResteasyWebTarget目标时，对象target为null。

有人可以帮我吗？ CDI在我的课程中不起作用...

    @Qualifier
    @Retention(RetentionPolicy.RUNTIME)
    @Target({TYPE, METHOD, PARAMETER, FIELD})
    public @interface ServiceProducer {

    }

公共类ServiceProducerImpl实现Serializable {

@Produces
@ServiceProducer
public ResteasyWebTarget getClient() {
    String patApi = "http://localhost:5000";
    try {
        ResteasyClient client = new ResteasyClientBuilder().build();
        ResteasyWebTarget target = client.target(UriBuilder.fromPath(patApi));
        return target;
    } catch (Exception ex) {
        ex.printStackTrace();
        return null;
    }
}

}

  @Path("/api-java")
    public interface IServices {

        @PUT
        @Path("/put")
        @Produces(MediaType.APPLICATION_JSON)
        @Consumes(MediaType.APPLICATION_JSON)
        Response putservice(ApiRequestModel api);
    }





public class ApiRequest {

    @Inject
    @ServiceProducer
    ResteasyWebTarget target;

    public void rest() {
        String patApi = "http://localhost:5000";
        try {

            IServices service = target.proxy(IServices.class);
            ApiRequestModel api = new ApiRequestModel(11, "22", 0);
            Response response = service.putservice(api);
            ApiResponseModel apiResponse = response.readEntity(ApiResponseModel.class);
            System.out.println("API-JAVA>> " + "CNPJ: " + apiResponse.getCnpj() + " ADQ: " + apiResponse.getAdq() + " BLOCKCODE: " + apiResponse.getBlockcode());

        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }

Answer 1

我可以使用这个：

@Stateless
public class ApiRequest {
//Content of class.....
}

Class Main：公共类主要{

@EJB
ApiRequest apiRequest;

public static void main(String[] args) {

    Main main = new Main();
    main.executeRest();

}

public void executeRest(){
    apiRequest.rest();
}

等于返回NullPointerException，