JPA Hibernate父/子映射混淆

希望有人能帮我做这件事

我正在尝试使用JPA/Hibernate在两个实体之间创建双向连接

我遇到了这个问题，这似乎表明了一个事实，即我的数据库列名需要与我的值对象属性名匹配——但这似乎很奇怪。希望有人能帮助我，提供一些清晰

不幸的是，我正处在这样一个位置：一些明亮的火花用毫无意义的名字来命名列名我无法更改列名-相信我-如果可以-我会的

我的模式是这样的：-

Customer
========
CS1 -- The ID column
CS2 -- Customer Description

ContactDetails
==============
CD1 -- The ID column
CD2 -- The FK to the Customer table
...

正如您所期望的，在我的应用程序中，我有两个值对象-它们如下所示：-

Customer.java

@Entity
@Table("Customer")
public class Customer {
  @Id
  @GeneratedValue(strategy = IDENTITY)
  @Column(name = "CS1", nullable=false, columnDefinition="INTEGER")
  private int id;
}

@OneToMany  (cascade = CascadeType.ALL, mappedBy = "customerId", fetch = FetchType.EAGER) 
private Set <ContactDetailsVO> contactDetails = new HashSet <CustomerDetailsVO> ();
}

public class ContactDetails {
  @Id
  @GeneratedValue(strategy = IDENTITY)
  @Column(name = "CD1", nullable=false, columnDefinition="INTEGER")
  private int id;

@Column(name = "CD2")
long customerId;

@ManyToOne(optional = false)
@JoinColumn(name = "customerId", referencedColumnName = "id")
private CustomerVO customer;

public CustomerVO getCustomer() {
    return customer;
}

public void setCustomer(CustomerVO customer) {
    this.customer = customer;
}
}

@Entity
@Table("Customer")
public class Customer {
  @Id
  @GeneratedValue(strategy = IDENTITY)
  @Column(name = "CS1", nullable=false, columnDefinition="INTEGER")
  private int id;
}

@OneToMany  (cascade = CascadeType.ALL, mappedBy = "CD2", fetch = FetchType.EAGER) 
private Set <ContactDetailsVO> contactDetails = new HashSet <CustomerDetailsVO> ();
}

public class ContactDetails {
  @Id
  @GeneratedValue(strategy = IDENTITY)
  @Column(name = "CD1", nullable=false, columnDefinition="INTEGER")
  private int id;

@Column(name = "CD2")
long customerId;

@ManyToOne(optional = false)
@JoinColumn(name = "CD2", referencedColumnName = "CS1")
private CustomerVO customer;

public CustomerVO getCustomer() {
    return customer;
}

public void setCustomer(CustomerVO customer) {
    this.customer = customer;
}
}

不幸的是，这种为映射关系引用对象属性名称的方法似乎不起作用——在启动时，我得到以下结果：-

Caused by: org.hibernate.HibernateException: Missing column: customerId in TestDB.dbo.ContactDetails
    at org.hibernate.mapping.Table.validateColumns(Table.java:276)
    at org.hibernate.cfg.Configuration.validateSchema(Configuration.java:131

因此，如果我随后更改映射以使用实际的表列名，则会得到以下结果：-

Caused by: org.hibernate.MappingException: Could not determine type for: 
com.myCompany.model.vo.CustomerVO, at table: ContactDetails, for columns: 
      [org.hibernate.mapping.Column(customer)]
    at org.hibernate.mapping.SimpleValue.getType(SimpleValue.java:306)

Customer.java

@Entity
@Table("Customer")
public class Customer {
  @Id
  @GeneratedValue(strategy = IDENTITY)
  @Column(name = "CS1", nullable=false, columnDefinition="INTEGER")
  private int id;
}

@OneToMany  (cascade = CascadeType.ALL, mappedBy = "customerId", fetch = FetchType.EAGER) 
private Set <ContactDetailsVO> contactDetails = new HashSet <CustomerDetailsVO> ();
}

public class ContactDetails {
  @Id
  @GeneratedValue(strategy = IDENTITY)
  @Column(name = "CD1", nullable=false, columnDefinition="INTEGER")
  private int id;

@Column(name = "CD2")
long customerId;

@ManyToOne(optional = false)
@JoinColumn(name = "customerId", referencedColumnName = "id")
private CustomerVO customer;

public CustomerVO getCustomer() {
    return customer;
}

public void setCustomer(CustomerVO customer) {
    this.customer = customer;
}
}

@Entity
@Table("Customer")
public class Customer {
  @Id
  @GeneratedValue(strategy = IDENTITY)
  @Column(name = "CS1", nullable=false, columnDefinition="INTEGER")
  private int id;
}

@OneToMany  (cascade = CascadeType.ALL, mappedBy = "CD2", fetch = FetchType.EAGER) 
private Set <ContactDetailsVO> contactDetails = new HashSet <CustomerDetailsVO> ();
}

public class ContactDetails {
  @Id
  @GeneratedValue(strategy = IDENTITY)
  @Column(name = "CD1", nullable=false, columnDefinition="INTEGER")
  private int id;

@Column(name = "CD2")
long customerId;

@ManyToOne(optional = false)
@JoinColumn(name = "CD2", referencedColumnName = "CS1")
private CustomerVO customer;

public CustomerVO getCustomer() {
    return customer;
}

public void setCustomer(CustomerVO customer) {
    this.customer = customer;
}
}

然后我得到以下结果：-

Caused by: org.hibernate.MappingException: Could not determine type for: 
com.myCompany.model.vo.CustomerVO, at table: ContactDetails, for columns: 
      [org.hibernate.mapping.Column(customer)]
    at org.hibernate.mapping.SimpleValue.getType(SimpleValue.java:306)

正如我所说，解决这个问题的明显方法是命名我的对象属性，与表列名相同——但是考虑到命名表列的愚蠢性，我宁愿将我的应用程序与之隔离

有人能帮我解释一下这种奇怪的行为吗

---

提前谢谢。

好的-我认为这是Hibernate中的一个真正问题。基本上，如果混合使用属性和方法注释装饰方法，Hibernate会给您带来虚假的、无意义的错误。希望这能帮别人省下我刚才浪费的6个小时