Question

我对hibernate anotation有疑问。我有一个BaseEntity.java和一个名为state.java的模型，它扩展了BaseEntity.java

BaseEntity.java.

@MappedSuperclass
public abstract class BaseEntity<T> implements Serializable {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private T                   id;

    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "CreatedBy", nullable = true)
    private User                createdBy;

   @ManyToOne(fetch = FetchType.LAZY)
   @JoinColumn(name = "subsite", nullable = true)
   private Subsite              subsite;
}

state.java

@Entity
@Table(name="State")
public class State extends BaseEntity<Long> {

    @Column(name = "state", nullable = true)
    private String  state;

    @Column(name = "city", nullable = true)
    private String  city;
 }

当程序在数据库中构建我的表时，我应该怎么做，像我的父类中设置的子网站一样的字段但是我的子类中没有设置和hibernate忽略这个字段。

Answer 1

您可以在declare @i int = 1 declare @rownumber int = 2 declare @result_set table (value varchar(1000)) declare @q_getoldeMail nvarchar(max) declare @columnname varchar(100) = 'name' declare @tablename varchar(100) = 'sys.columns' --select * from sys.columns Set @i = 1 While(@i <= @rowNumber) BEGIN Set @q_getoldeMail = 'SELECT Lower('+@columnname+') FROM ( SELECT ROW_NUMBER() OVER (ORDER BY object_ID) AS rownumber ,object_id ,name FROM ' + (@tablename) + ') AS ar Where rownumber = '+convert(varchar,@i)+'' insert into @result_set exec sp_executesql @q_getoldeMail Set @i = @i+1 end select * from @result_set属性上使用@Transient注释，但是您正在使用createdBy注释，此引用被引用到另一个注册，因此无法为您的案例执行此操作，请参考至question获取更多信息。

我想在hibernate anotation中排除字段

1 个答案: