Java spring数据OneToMany relationschip错误

Question

谁能帮我提个问题。我把对象结构化了，就像在文档中一样，但是关系芯片一个都不起作用。

    Order:
    - Positions
    - Partners

    I receiving error:

    SQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'order (order_id)' at line 1

订单：

@Getter
@Setter
@Entity
@Table(name = "e_orders")
public class Order {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "order_id")
    private int orderId;

    @Column(unique = true)
    private String orderNumber;
    private int count;

    @OneToMany(mappedBy = "e_orders", fetch = FetchType.LAZY)
    private List<Partner> partners;

    @OneToMany(mappedBy = "e_orders", fetch = FetchType.LAZY)
    private List<Position> positions;
}

合作伙伴：

@Getter
@Setter
@Entity
@Table(name = "e_partner")
public class Partner {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "partner_id")
    private int id;

    private String name;
    private String street;
    private String city;

    @ManyToOne(fetch = FetchType.LAZY, cascade = CascadeType.PERSIST)
    @JoinColumn(name = "order_e_id")
    private Order attachedOrder;
}

职位：

@Getter
@Setter
@Entity
@Table(name = "e_position")
public class Position {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "position_id")
    private int id;

    private String guid;
    private String posnr;

    @ManyToOne(fetch = FetchType.LAZY, cascade = CascadeType.PERSIST)
    @JoinColumn(name = "order_e_id")
    private Order attachedOrder;
}

Answer 1

我认为问题出在mappedby值上，因为mappedby的值应该与相应类中的属性名相同，而不是@table注释中的值。因此，要解决此问题，只需将mappedby中的值从e_orders改为attachedorders