我想为图形创建一个sql数据库。我的想法是为图、节点和边创建一个表。每个图都有一个节点和边的列表。每个节点都有进入该节点的边的列表和从该节点出来的边的列表。每一条边都有它从哪个节点出来和进入哪个节点的信息。我得到一个错误-“实体Map中的重复列：graph.data.entity.edge列：node\u id（应该用insert=“false”update=“false”Map）”。我不应该加入node\u id列？当使用@joincolumn for tonode时，我应该使用insert=“false”update=“false”吗？
我的代码：
边缘.java

@Entity
public class Edge extends AbstractEntity {

    @NotNull
    @ManyToOne
    @JoinColumn(name = "node_id")
    private Node fromNode;

    @NotNull
    @ManyToOne
    @JoinColumn(name = "node_id")
    private Node toNode;

    @NotNull
    @ManyToOne
    @JoinColumn(name = "graph_id")
    private Graph graph;

    @NotNull
    private int weight;

节点.java

@Entity
public class Node extends AbstractEntity {

    private String name;

    @OneToMany(mappedBy = "fromNode", fetch = FetchType.EAGER)
    private List<Edge> outEdges = new ArrayList<>();

    @OneToMany(mappedBy = "toNode", fetch = FetchType.EAGER)
    private List<Edge> inEdges = new ArrayList<>();

    @ManyToOne
    @JoinColumn(name = "graph_id")
    private Graph graph;

图形.java

@Entity
public class Graph extends AbstractEntity {

    private String name;

    @OneToMany(mappedBy = "graph", fetch = FetchType.EAGER)
    private List<Node> nodes = new ArrayList<>();

    @OneToMany(mappedBy = "graph", fetch = FetchType.EAGER)
    private List<Edge> edges = new ArrayList<>();

'''