例外：实体映射中的重复列：列：哈希（应使用 insert="false" update="false" 映射）

Question

我对 Hibernate 框架非常陌生，并且在运行代码时遇到异常：

Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.hibernate.SessionFactory]: Factory method 'sessionFactory' threw exception; nested exception is org.hibernate.MappingException: Repeated column in mapping for entity: LeiRecord column: hash (should be mapped with insert="false" update="false")

我在 SpringConfiguration、oracleDataDao 的很多地方都遇到了这个错误，但由于我没有在映射中定义重复的列，所以我不明白代码哪里出错了

Answer 1

您应该将Address 类注释为@Embeddable，然后在LeiRecord 实体中为addressLegal 和addressHeadquearters 引用其实例

@Embeddable
@Getter
@Setter
public class Address {

   private String firstAddr;
   private String nextAddr;
   //... etc.
}

@Getter
@Data
@Entity
@Table(name = "BK_TEST")
@Immutable
public class LeiRecord {
// ...
    @Embedded
    @AttributeOverrides(
        {
            @AttributeOverride(name = "firstAddr",   column = @Column(name = "legalAddress_firstAddr")),
            @AttributeOverride(name = "nextAddr",    column = @Column(name = "legalAddress_nextAddr")),
            @AttributeOverride(name = "region",      column = @Column(name = "legalAddress_region")),
            @AttributeOverride(name = "postalCode",  column = @Column(name = "legalAddress_postalCode")),
            @AttributeOverride(name = "city",        column = @Column(name = "legalAddress_city")),
            @AttributeOverride(name = "country",     column = @Column(name = "legalAddress_country")),
            @AttributeOverride(name = "mailRouting", column = @Column(name = "legalAddress_mailRouting"))
        }
    )
    private Address addressLegal;

    @Embedded
    @AttributeOverrides(
        {
            @AttributeOverride(name = "firstAddr",   column = @Column(name = "headquartersAddress_firstAddr")),
            @AttributeOverride(name = "nextAddr",    column = @Column(name = "headquartersAddress_nextAddr")),
            @AttributeOverride(name = "region",      column = @Column(name = "headquartersAddress_region")),
            @AttributeOverride(name = "postalCode",  column = @Column(name = "headquartersAddress_postalCode")),
            @AttributeOverride(name = "city",        column = @Column(name = "headquartersAddress_city")),
            @AttributeOverride(name = "country",     column = @Column(name = "headquartersAddress_country")),
            @AttributeOverride(name = "mailRouting", column = @Column(name = "headquartersAddr_mailRouting"))
        }
    )
    private Address addressHeadquarters;

    //... other entity fields

}