问如何使用JHipster重用现有的JPA域对象？

EN

package com.my-company.my-spring-app.domain;

import javax.persistence.*;
import java.util.Date;
import java.util.HashSet;
import java.util.Set;

/**
 * City generated by hbm2java
 */
@Entity
@Table(name = "city",
     schema = "public",
     uniqueConstraints = @UniqueConstraint(columnNames = "name"))
public class City implements java.io.Serializable {

private static final long serialVersionUID = 4674557242772722625L;

@Id
@SequenceGenerator(name = "city_gen",
                   schema = "public",
                   sequenceName = "city_id_seq")
@GeneratedValue(strategy = GenerationType.SEQUENCE,
                generator = "city_gen")
@Column(name = "id",
        unique = true,
        nullable = false)
private Long id;

@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "countryid",
            nullable = false)
// @JoinColumn(name = "country_id", nullable = false)
private Country country;

@Column(name = "name",
        unique = true,
        length = 200)
private String name;
...
}