Question

我在每个表中有三个带主键的表：table packetname，table customer和table rent。

表 PacketName

public class PacketName implements Serializable {

    private static final long serialVersionUID = 1L;

    @Id
    @GeneratedValue(strategy=GenerationType.AUTO)
    private Integer idpacket;
    private String packetname;
    private String packetdesc;
    private String packetprize;
    private String packettime;
    //getter and setter etc
}

表客户

public class Customer implements Serializable {

    private static final long serialVersionUID = 1L;

    @Id
    @GeneratedValue(strategy=GenerationType.AUTO)
    private Long costumerid;

    private String costumername;
    private String governmentname;
    private String costumeraddress;
    private String costumeremail;
    @NotNull
    private String costumerphone;

    @NotNull
    private String customer_username;
    @NotNull
    private String customer_password;
    ...
    //getter and setter
}

表租借

@Entity
public class Rent implements Serializable{

    private static final long serialVersionUID = 1L;
    @Id
    @GeneratedValue(strategy=GenerationType.AUTO)
    private Long idrent;

    @CreationTimestamp
    @Temporal(TemporalType.TIMESTAMP)
    @Column(nullable = false)
    private Date registerdate;
    private Date updatedate;
    private Date expdate;
    private String rentstatus;
    ....
    //getter and setter
}

我的问题是：如何从表客户的tabel packetname和idcustomer获取idpacketname，packetname到表租。所以我知道一个客户租用一个数据包，并提供关于expdate和rentstatus的表租金详情。

对不起我的写错题，我是这个stackoverflow的新手谢谢你们：）

Springboot Hibernate实体映射

0 个答案: