我堅持實體到MySQL數據庫。我的要求是存儲ID爲BR01,BR02,...等,而不是存儲爲1,2,..等。休眠 - 自定義ID生成
我如何將BR01,BR02等存儲爲ID?
我知道序列不支持mysql數據庫。
我的實體類如下:
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 + "]";
}
}
您確定要在表中最大的99行?或者您的需求是否超出兩位數? – Deltharis
'@ GeneratedValue'每次添加分支時刪除此批註並設置標識。 –
我的要求比例超過兩位數 – Devloper