org.hibernate.MappingException：实体映射中的重复列

org.hibernate.MappingException：实体映射中的重复列

您

@JoinColumn

对选民和个人使用相同的名称。更改

@JoinColumn("personID")

为关联人和

@JoinColumn("voterID")

关联选民，一切都很好。

附带说明一下，因为您用

domain-driven-design

… 标记了它。如果像这样实现，则投票类将具有更多DDD样式：

@Id@GeneratedValue(strategy = GenerationType.AUTO)@Column(name = "ID")private Integer ID;@ManyToOne@JoinColumn(name = "voterID")private Person voter;@ManyToOne@JoinColumn(name = "votedForID")private Person votedFor;@Column(name = "vote")private Boolean vote;public void cast(Person voter, Person votedFor, boolean vote) {    // Maybe assert that this vote has not already been casted    this.voter = voter;    this.votedFor = votedFor;    this.vote = vote;}public Integer getID() {    return ID;}public Boolean isUpVote() {    return vote;}public Boolean isDownVote() {    return !vote;}public Person getVoter() {    return voter;}public Person getVotedFor() {    return votedFor;}

只是一个例子，不知道我是否了解您的

vote

布尔值的含义以表示赞成/反对表决。