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我正在尝试在 2 个表之间映射多对多关系，这两个表都具有复合主键

LSFOCTB which primary key is composed of : LSFOC_CODSOC,LSFOC_CODLSC,LSFOC_CODFOC

LSFORTB which primary key is composed of : LSFOR_CODSOC,LSFOR_CODLSC,LSFOC_CODFOR

The table in charge of the ManyToMany relationship is :

LSFCFTB, with : LSFCF_CODSOC,LSFCF_CODLSC,LSFCF_CODFOC,LSFCF_CODFOR

因此，在休眠模型映射 LSFOCTB 中，我尝试了：

@ManyToMany(targetEntity = package.LSFOCTB.class, cascade = { CascadeType.PERSIST,
            CascadeType.MERGE })
    @JoinTable(name = "LSFCFTB", joinColumns = {
            @JoinColumn(name = "LSFCF_CODLSC", referencedColumnName = "LSFOC_CODLSC"),
            @JoinColumn(name = "LSFCF_CODFOC", referencedColumnName = "LSFOC_CODFOC"),
            @JoinColumn(name = "LSFCF_CODSOC", referencedColumnName = "LSFOC_CODSOC") }, 
    inverseJoinColumns = { @JoinColumn(name = "LSFCF_CODLSC", referencedColumnName = "LSFOR_CODLSC"),
            @JoinColumn(name = "LSFCF_CODFOR", referencedColumnName = "LSFOR_CODFOR"),
            @JoinColumn(name = "LSFCF_CODSOC", referencedColumnName = "LSFOR_CODSOC") })

在吸气剂之前。但它不起作用......尝试访问远程集合时的错误是：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [beans-dao.xml]: Invocation of init method failed; nested exception is org.hibernate.MappingException: Repeated column in mapping for collection: package.LSFOCTB.distantCollection column: LSFCF_CODLSC

是否已经设法为 ManyToMany 关系制作休眠映射？如果是这样，我的映射有什么问题？感谢您的帮助 ！

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1 回答 1

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问题似乎是您正在创建一个包含 6 列的连接表，并且您的列有重复的名称。您实际上正在创建 2 个名为 LSFCF_CODLSC 的列和 2 个名为LSFCF_CODFOR的列和 2 个名为LSFCF_CODSOC的列。

我建议你试试这个：

@JoinTable(name = "LSFCFTB", joinColumns = {
                    @JoinColumn(name = "LSFOC_LSFCF_CODLSC", referencedColumnName = "LSFOC_CODLSC"),
                    @JoinColumn(name = "LSFOC_LSFCF_CODFOC", referencedColumnName = "LSFOC_CODFOC"),
                    @JoinColumn(name = "LSFOC_LSFCF_CODSOC", referencedColumnName = "LSFOC_CODSOC") }, 
        inverseJoinColumns = { @JoinColumn(name = "LSFOR_LSFCF_CODLSC", referencedColumnName = "LSFOR_CODLSC"),
                    @JoinColumn(name = "LSFOR_LSFCF_CODFOR", referencedColumnName = "LSFOR_CODFOR"),
                    @JoinColumn(name = "LSFOR_LSFCF_CODSOC", referencedColumnName = "LSFOR_CODSOC") })

或类似的东西（根据您的命名约定）给每一列一个唯一的名称。

于 2008-10-13T15:40:53.030 回答