抽象类中的Spring Autowired Repository

实际上,正如@ dino-tw所提到的,您正在尝试实例化具有未定义依赖关系的抽象类.您绝对可以拥有一个抽象的控制器类,甚至可以定义将由所有子类继承的请求处理方法.试试这个:

public abstract class AbstractRestController {

    private final JpaRepository repository;  

    public AbstractRestController(JpaRepository repository){
        this.repository = repository;
    }

    @RequestMapping(value = "/{id}", method = RequestMethod.GET)
    public ResponseEntity> getOne(@PathVariable ID id) {
        T restObj = repository.findOne(id);
        JsonResponseBody response = new JsonResponseBody<>(ResponseStatus.SUCCESS, restObj);      
        return ResponseEntity.ok().contentType(MediaType.APPLICATION_JSON_UTF8).body(response);
    }

    protected JpaRepository getRepository(){ return repository; }
}


@RestController
@RequestMapping(value = "/api/v1/customer")
public class CustomerController extends AbstractRestController {

    @Autowired
    public CustomerController(CustomerRepository repository){
        super(repository);
    }  

}