在不同的类中多次注入依赖项时,如何获得依赖项的一个实例?

我需要获取OwnerService的一个实例,因为在Dataloader类中,我将一些数据加载到该实例,而在OwnerController类中,我必须获取加载的数据。但在OwnerController中没有数据。我打印出实例,并收到不同的实例ID

数据加载器类

public class DataLoader implements CommandLineRunner {
   private final OwnerService ownerService;
   public DataLoader() {
      ownerService = new OwnerServiceMap();
   }
   @Override
   public void run(String... args) throws Exception {
      System.out.println(ownerService);
   }
}

@RequestMapping("/owners")
@Controller
public class OwnerController {
    private final OwnerService ownerService;

    public OwnerController(OwnerService ownerService) {
        this.ownerService = ownerService;
    }

    @GetMapping({"", "/", "/index"})
    public String ownersIndex(Model model) {
        System.out.println(ownerService);
        model.addAttribute("owners", ownerService.findAll());
        return "owners/index";
    }
}

我需要几个注入类中的一个Bean实例。