你好，当我在两个实体（其中一个具有复合主键）之间执行JoinTable时，我无法理解错误。

我的实体：

    @Data
    @AllArgsConstructor
    @NoArgsConstructor
    @Entity
    @Table(name = "meds")
    public class Meds {
    
        @Id
        @GeneratedValue(strategy = GenerationType.IDENTITY)
        private long id;
    
        @Column
        private String name;
    
        @Column
        private BigDecimal price;
    
        @Column
        private String category;
    
        @Column
        private int pillNumber;
    
        @Column
        private Date date;
    
        @JsonIgnore
        @ManyToMany(mappedBy = "assignedMeds")
        private Set<Plans> plans = new HashSet<>();
    
    }

    @Data
    @AllArgsConstructor
    @NoArgsConstructor
    @Entity
    @Table(name = "plans")
    @IdClass(PlansPKId.class)
    public class Plans {
    
        @Id
        @GeneratedValue(strategy = GenerationType.IDENTITY)
        private long planId;
    
        @Id
        @Column
        private Date planDate; // format: yyyy-mm-dd
    
        @Column
        private String planName;
    
        @Column
        private String weekday;
    
        @ManyToMany
        @JoinTable(name = "Plan_Meds", joinColumns = @JoinColumn(name = "planDate", referencedColumnName = "planId"), inverseJoinColumns = @JoinColumn(name = "id"))
        private Set<Meds> assignedMeds = new HashSet<>();
    
    }

我的计划PKId类：

    @Data
    @AllArgsConstructor
    @NoArgsConstructor
    @EqualsAndHashCode
    public class PlansPKId implements Serializable {
    
        private long planId;
    
        private Date planDate; // format: yyyy-mm-dd
    }

和我的错误：

我尝试了@JoinColumn（name=“planDate”，referencedColumnName=“planId”），也尝试了其他方法，首先使用planId，但发生了同样的事情。可能出了什么问题？当做