在设置 oneToOne 关系时,我有两个表。比尔和比尔SimpleEntry。(每个 Bill 都有一个 BillSimpleEntry
这是他们的结构
CREATE TABLE `bill` (
`id` bigint(20) NOT NULL AUTO_INCREMENT,
..
..
PRIMARY KEY (`id`),
UNIQUE KEY `id_UNIQUE` (`id`),
KEY `fk_bill_groups1_idx` (`groupId`),
KEY `fk_bill_user1_idx` (`billPayerId`),
CONSTRAINT `fk_b...` FOREIGN KEY (`groupId`) REFERENCES `groups` (`id`) ON D ELETE NO ACTION ON UPDATE NO ACTION,
CONSTRAINT `fk_b...` FOREIGN KEY (`billPayerId`) REFERENCES `user` (`id`) ON DELETE NO ACTION ON UPDATE NO ACTION
) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=latin1;
/*!40101 SET character_set_client = @saved_cs_client */;
DROP TABLE IF EXISTS `billsimpleentry`;
/*!40101 SET @saved_cs_client = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `billsimpleentry` (
`..` varchar(200) DEFAULT NULL,
`..` text,
`billId` bigint(20) DEFAULT NULL,
`id` bigint(20) NOT NULL AUTO_INCREMENT,
PRIMARY KEY (`id`),
KEY `fk_bill_idx` (`billId`)
) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=latin1;
JPA 配置(来自账单实体的 oneToOne 关系属性的片段)。
@OneToOne(cascade=CascadeType.ALL,mappedBy="billId",fetch = FetchType.EAGER)
private BillSimpleEntry billSimpleEntry;
我正在尝试通过 billSimpleEntry.billId 和 bill.Id 在 Bill 和 BillSimpleEntry 之间进行连接。但我似乎得到了一个错误。
这是我得到的错误-
Caused by: org.hibernate.AnnotationException: Referenced property not a (One|Many)ToOne:
com.uh.br.domain.BillSimpleEntry.billId in mappedBy of
com.uh.br.domain.Bill.billSimpleEntryry
这里是实体
Bill.java
@Entity
@Table(name = "bill")
public class Bill implements GenericObject {
/**
*
*/
private static final long serialVersionUID = -5660869020353250221L;
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
...
..
@OneToOne(cascade=CascadeType.ALL,fetch = FetchType.EAGER)
@JoinColumn(name="billId")
private BillSimpleEntry billSimpleEntry;
...
getters & setters
...
}
BillSimpleEntry.java
@Entity
@Table(name="billsimpleentry")
public class BillSimpleEntry implements GenericObject{
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
private Long billId;
@Column(columnDefinition="TEXT")
private String itemDescription;//napkin
...
...
...
getters & setters
...