如何修复CrudRepository.save(java.lang.Object)是springboot中的无法访问方法？

Question

即时通讯到本springboot教程,我spring data在我的项目中使用,我试图添加data to database..当我试图这样做时使用以下bt我得到一个错误说

调用方法public abstract java.lang.Object org.springframework.data.repository.CrudRepository.save(java.lang.Object)是无访问器方法!

这是我的代码,

//my controller

@RequestMapping("/mode")
    public String showProducts(ModeRepository repository){
        Mode m = new Mode();
        m.setSeats(2);
        repository.save(m); //this is where the error getting from
        return "product";
    }


//implementing crud with mode repository
@Repository
public interface ModeRepository extends CrudRepository<Mode, Long> {

}

 //my mode class
@Entity
@Table(name="mode")
public class Mode implements Serializable {
    private static final long serialVersionUID = 1L;

    @Id
    @GeneratedValue(strategy=GenerationType.AUTO)
    @Column(unique=true, nullable=false)
    private int idMode; 


    @Column(nullable=false)
    private int seats;

    //assume that there are getters and setters
}

我是新手,springboot有人可以告诉我我做错了什么,感谢有人能给我一个链接来了解springdata 其他的spring documentation

Answer 1

更改控制器代码,以便ModeRepository是私有自动装配字段.

    @Autowired //don't forget the setter
    private ModeRepository repository; 

    @RequestMapping("/mode")
    public String showProducts(){
        Mode m = new Mode();
        m.setSeats(2);
        repository.save(m); //this is where the error getting from
        return "product";
    }