java - 无法在一对一关系上插入空对象嵌套异常是 .PersistentObjectException : detached entity passed to persist

Question

这是关系

   @OneToOne(optional = true, fetch = FetchType.LAZY, cascade = CascadeType.PERSIST )
    @JoinColumn(name = "ALL_ORG_MST_ORGANIZATION_ID")
    private AllOrgMst allOrgMstOrganizationId;

和 postman 对象数据

{
    "empSts": "Active",
    "empRef": null,
    "probationDuration": "6",
    "allOrgMstGroupId": {
        "id": 1
    },
    "allOrgMstOrganizationId": {
        "id": null
    }
}

我不能插入空值。如果我给 AllOrgMstOrganizationId 那么没问题。但是当我给它 Null 时错误::org.springframework.dao.InvalidDataAccessApiUsageException:分离的实体传递给持久化:com.hrms.entity.com.AllOrgMst；嵌套异常是 org.hibernate.PersistentObjectException:传递给持久化的分离实体:com.hrms.entity.com.AllOrgMst

Answer 1

您必须将字段 allOrgMstOrganizationId 的值从空对象更改为 null。也许这会解决你的问题。数据集如下所示:

{
    "empSts": "Active",
    "empRef": null,
    "probationDuration": "6",
    "allOrgMstGroupId": {
        "id": 1
    }, 
    "allOrgMstOrganizationId": null
}