Java 在创建基本控制器时使用泛型有困难

我想创建一个基本控制器，使用如下的泛型

@RestController
public class BaseController<T extends BaseEntity, S extends BaseServiceI<T, D extends BaseDao<T>>> {
    @Autowired
    private HttpServletRequest mRequest;
    @Autowired
    private HttpServletResponse mResponse;

    @Autowired
    private S service;

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您的类型参数不正确，请更改它们

发件人：

致：

太棒了！这对我很有用！我有一个新问题，你能帮我看一下吗？如果你有两个接口实现，并且你正试图注入其中一个，你需要将其中一个标记为

@Primary

或使用

@限定符

。

public interface BaseServiceI<T, V extends BaseDao<T>> {

public class ProjectInfoController extends BaseController<ProjectInfo, ProjectInfoServiceI, ProjectInfoDao> {


Consider marking one of the beans as @Primary, updating the consumer to accept multiple beans, or using @Qualifier to identify the bean that should be consumed

[2020-12-15 22:35:09:719] Failed to read the entry class, please make sure the accuracy of the registration certificate!Error creating bean with name 'baseController': Unsatisfied dependency expressed through field 'service'; nested exception is 

<T extends BaseEntity, S extends BaseServiceI<T, D extends BaseDao<T>>>

<T extends BaseEntity, S extends BaseServiceI<T, D>, D extends BaseDao<T>>