如果继承service.Base的接口，有自己的方法

public interface Base<T> {
    public void save(T t);

    public void update(T t);

    public void delete(Long id);
}

public class BaseImpl<T> implements Base<T> {
    @Override
    public void save(T t) {
        System.out.println("save()");
    }

    @Override
    public void update(T t) {
        System.out.println("update()");
    }

    @Override
    public void delete(Long id) {
        System.out.println("delete()");
    }
}

public interface ObjectAService extends Base<ObjectA> {
    public void supportMethod(ObjectA oba);
}

@Service("obaService")
public class ObjectAServiceImpl extends BaseImpl<ObjectA> implements ObjectAService {

    @Override
    public void supportMethod(ObjectA oba) {
        System.out.println("ObjectAService supportMethod()");
    }
}

将BaseAspect中的类注解放到子类中

public class BaseAspect<T> {

    @Before("execution(* service.base.BaseImpl.save(..)) && args(t)")
    public void save(T t) {
        System.out.println("save(), " + t.getClass().toString());
    }

    @Before("execution(* service.base.BaseImpl.update(..)) && args(t)")
    public void update(T t) {
        System.out.println("update(), " + t.getClass().toString());
    }

    @Before("execution(* service.base.BaseImpl.delete(..)) && args(id)")
    public void delete(Long id) {
        System.out.println("delete(), " + id);
    }
}

@Aspect
@Component
public class ObjectAAspect extends BaseAspect<ObjectA> {

    @Before("execution(* service.ObjectAService.supportMethod(..)) && args(objectA)")
    public void supportMethod(ObjectA objectA) {
        System.out.println("aspect supportMethod " + objectA.getClass().getName());
    }
}

测试

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = { config.ConcertConfig.class })
@FixMethodOrder(MethodSorters.NAME_ASCENDING)
public class ObjectAServiceImplTest { 
    @Autowired
    private ObjectAService obaService;

    @Autowired
    private ObjectBService obbService;

    @Test
    public void testSupportMethod() throws Exception {
        obaService.save(new ObjectA());
        obaService.supportMethod(new ObjectA());
    }
}

测试结果

save(), class entity.ObjectA
save()
aspect supportMethod entity.ObjectA
ObjectAService supportMethod()

Process finished with exit code 0