Hibernate中联合主键生成策略 - 数据库编程

}

(2)测试

(3)查看结果

select * from teacher;

desc teacher;

方法三：

（1）在Teacher.java中修改,在getId(),getName()上添加@Id，在Teacher类名称上添加

@IdClass(value=TeacherPK.class)

package com.zgy.hibernate.model;



import java.util.Date;



import javax.annotation.Generated;

import javax.persistence.Column;

import javax.persistence.EmbeddedId;

import javax.persistence.Entity;

import javax.persistence.EnumType;

import javax.persistence.Enumerated;

import javax.persistence.GeneratedValue;

import javax.persistence.GenerationType;

import javax.persistence.Id;

import javax.persistence.IdClass;

import javax.persistence.Table;

import javax.persistence.Temporal;

import javax.persistence.TemporalType;

import javax.persistence.Transient;



@Entity

@javax.persistence.TableGenerator(

name="Teacher_GEN",

table="GENERATOR_TABLE",

pkColumnName="pkkey",

valueColumnName="pkvalue",

pkColumnValue="Teacher",

allocationSize=1

)

@IdClass(value=TeacherPK.class)

public class Teacher {

private int id;

private String name;

private String title;

private String address;

private String wifeName;

private Date birth;

private ZhiCheng zhiCheng;

@Id

// @GeneratedValue(strategy=GenerationType.TABLE,generator="Teacher_GEN")

public int getId() {

return id;

}

public void setId(int id) {

this.id = id;

}

@Column(name="_name")

@Id

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

private TeacherPK pk;

public String getTitle() {

return title;

}

public void setTitle(String title) {

this.title = title;

}

public String getAddress() {

return address;

}

public void setAddress(String address) {

this.address = address;

}



public String getWifeName() {

return wifeName;

}

public void setWifeName(String wifeName) {

this.wifeName = wifeName;

}

@Temporal(TemporalType.DATE)

public Date getBirth() {

return birth;

}

public void setBirth(Date birth) {

this.birth = birth;

}

@Enumerated(EnumType.STRING)

public ZhiCheng getZhiCheng() {

return zhiCheng;

}

public void setZhiCheng(ZhiCheng zhiCheng) {

this.zhiCheng = zhiCheng;

}

/*

@EmbeddedId



public TeacherPK getPk() {

return pk;

}

public void setPk(TeacherPK pk) {

this.pk = pk;

}

*/



}

（2）测试

（3）查看结果

select * from teacher;

desc teacher;

Hibernate中联合主键生成策略(三)

方法三：