Hibernate实体扩展基类,为实体形成的表没有基类中的属性列 [英] Hibernate entity extending base class, table formed for the entity doesn't have columns for attributes in base class
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问题描述
public class BaseEntity {
@Column
private String author;
public BaseEntity(String author) {
this.author = author;
}
public String getAuthor() {
return author;
}
}
@Entity
@Table(name = "books")
public class Book extends BaseEntity {
@Id
@GeneratedValue(generator = "increment")
@GenericGenerator(name = "increment", strategy = "increment")
private long bookId;
@Column
private String title;
public Book(String author, String title) {
super(author);
this.title = title;
}
public Book() {
super("default");
}
public String getTitle() {
return title;
}
}
我的sql表只有两列,bookId和title 。我该怎么做才能获得包括作者在内的所有三个成员的表格。
My sql table have just two columns, bookId and title. What should I do to get table for all the three members including author.
我的sql表只有两列,bookId和title。我应该怎样做才能获得包括作者在内的所有三个成员的表格。
My sql table have just two columns, bookId and title. What should I do to get table for all the three members including author.
推荐答案
你应该添加 @ MappedSuperclass
注释到 BaseEntity
@MappedSuperclass
public class BaseEntity {
@Column
private String author;
public BaseEntity(String author) {
this.author = author;
}
public String getAuthor() {
return author;
}
}
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