java - hibernate -自定义ID生成

我将实体持久存储到mysql数据库。我的要求是将ID存储为BR01，BR02等，而不是存储为1,2等。

我如何将ID存储为BR01，BR02等。

我知道mysql数据库不支持序列。

我的实体类如下：

package com.kabira.hrm.model;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
import javax.persistence.TableGenerator;
@Entity
@Table(name="branch")
public class Branch
{
    private Long id;
    private String country;
    private String state;
    private String city;
    private String address;
    private String phoneNumber;

    @Id
    @GeneratedValue
    public Long getId()
    {
        return id;
    }
    public void setId(Long id)
    {
        this.id = id;
    }
    public String getCountry()
    {
        return country;
    }
    public void setCountry(String country)
    {
        this.country = country;
    }
    public String getState()
    {
        return state;
    }
    public void setState(String state)
    {
        this.state = state;
    }
    public String getCity()
    {
        return city;
    }
    public void setCity(String city)
    {
        this.city = city;
    }
    public String getAddress()
    {
        return address;
    }
    public void setAddress(String address)
    {
        this.address = address;
    }
    public String getPhoneNumber()
    {
        return phoneNumber;
    }
    public void setPhoneNumber(String phoneNumber)
    {
        this.phoneNumber = phoneNumber;
    }
    @Override
    public String toString()
    {
        return "Branch [id=" + id + "]";
    }

}

最佳答案

您可以扩展org.hibernate.id.enhanced.SequenceStyleGenerator并将其与@GenericGenerator批注一起使用。