如何设计复杂的entity及对应的数据库表

答案:1 悬赏:30 手机版

解决时间 2021-02-01 13:58

提问者网友：玫瑰园
2021-02-01 02:07

最佳答案

五星知识达人网友：骨子里都是戏
2021-02-01 03:03

public class User {

private Integer id;
private String userName;
private EntityA entityA;
private List entityBs;
...
@Id
@GenericGenerator(name = "generator", strategy = "increment")
@GeneratedValue(generator = "generator")
@Column(name = "ID", length=11)
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
@Column(name = "user_name", length = 20)
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}

...
//to-do: EntityA

//to-do: EntityBs
}
-----------------------------------------------------------------------------------------
@Entity
public class EntityA(){
private Integer id;
private String name;
...

@Id
@GenericGenerator(name = "generator", strategy = "increment")
@GeneratedValue(generator = "generator")
@Column(name = "ID", length=11)
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
@Column(name = "name", length = 20)
public String getName() {
return name;
}
public void setUserName(String name) {
this.name = name;
}
...
}

@Entity
public class EntityB(){
private Integer id;
private String name;
...

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