idea hibernate jpa 生成实体类的实现

本篇博客记录下 IDEA 中连接数据库反转生成 Hibernate 实体和配置文件。

1. 打开 DataBase 窗口,添加数据源

idea hibernate jpa 生成实体类的实现

idea hibernate jpa 生成实体类的实现

idea hibernate jpa 生成实体类的实现

到了这一步数据源已添加好。

2. 添加 hibernat 持久层支持,生成实体 Bean /配置文件,这一步要去plugs那里下载一个hibernate插件,不然你的persistence是出不来的

idea hibernate jpa 生成实体类的实现

idea hibernate jpa 生成实体类的实现

idea hibernate jpa 生成实体类的实现

然后选择数据源,选择包,添加生成 Bean 的后缀,选择表,选择生成 xml 配置文件还是注解。

OK,结束

如果你选择生成带 JPA 注解类,映射文件是可以省略的,相反如果你生成映射文件,JPA 注解也可以省略。

看你喜欢哪种方式

生成注解例子

@Entity
@Table(name = "user", schema = "db_test", catalog = "")
public class UserPO {
  private String uuid;
  private String name;
  private String passwd;
  private String sex;
  private Timestamp birthday;
  private String phone;
  private String photo;
  private String email;
  private String yxbz;
  private String sorts;
 
  @Id
  @Column(name = "UUID")
  public String getUuid() {
    return uuid;
  }
 
  public void setUuid(String uuid) {
    this.uuid = uuid;
  }
 
  @Basic
  @Column(name = "NAME")
  public String getName() {
    return name;
  }
 
  public void setName(String name) {
    this.name = name;
  }
 
  @Basic
  @Column(name = "PASSWD")
  public String getPasswd() {
    return passwd;
  }
 
  public void setPasswd(String passwd) {
    this.passwd = passwd;
  }
 
  @Basic
  @Column(name = "SEX")
  public String getSex() {
    return sex;
  }
 
  public void setSex(String sex) {
    this.sex = sex;
  }
 
  @Basic
  @Column(name = "BIRTHDAY")
  public Timestamp getBirthday() {
    return birthday;
  }
 
  public void setBirthday(Timestamp birthday) {
    this.birthday = birthday;
  }
 
  @Basic
  @Column(name = "PHONE")
  public String getPhone() {
    return phone;
  }
 
  public void setPhone(String phone) {
    this.phone = phone;
  }
 
  @Basic
  @Column(name = "PHOTO")
  public String getPhoto() {
    return photo;
  }
 
  public void setPhoto(String photo) {
    this.photo = photo;
  }
 
  @Basic
  @Column(name = "EMAIL")
  public String getEmail() {
    return email;
  }
 
  public void setEmail(String email) {
    this.email = email;
  }
 
  @Basic
  @Column(name = "YXBZ")
  public String getYxbz() {
    return yxbz;
  }
 
  public void setYxbz(String yxbz) {
    this.yxbz = yxbz;
  }
 
  @Basic
  @Column(name = "SORTS")
  public String getSorts() {
    return sorts;
  }
 
  public void setSorts(String sorts) {
    this.sorts = sorts;
  }
 
  @Override
  public boolean equals(Object o) {
    if (this == o) return true;
    if (o == null || getClass() != o.getClass()) return false;
 
    UserPO userPO = (UserPO) o;
 
    if (uuid != null ? !uuid.equals(userPO.uuid) : userPO.uuid != null) return false;
    if (name != null ? !name.equals(userPO.name) : userPO.name != null) return false;
    if (passwd != null ? !passwd.equals(userPO.passwd) : userPO.passwd != null) return false;
    if (sex != null ? !sex.equals(userPO.sex) : userPO.sex != null) return false;
    if (birthday != null ? !birthday.equals(userPO.birthday) : userPO.birthday != null) return false;
    if (phone != null ? !phone.equals(userPO.phone) : userPO.phone != null) return false;
    if (photo != null ? !photo.equals(userPO.photo) : userPO.photo != null) return false;
    if (email != null ? !email.equals(userPO.email) : userPO.email != null) return false;
    if (yxbz != null ? !yxbz.equals(userPO.yxbz) : userPO.yxbz != null) return false;
    if (sorts != null ? !sorts.equals(userPO.sorts) : userPO.sorts != null) return false;
 
    return true;
  }
 
  @Override
  public int hashCode() {
    int result = uuid != null ? uuid.hashCode() : 0;
    result = 31 * result + (name != null ? name.hashCode() : 0);
    result = 31 * result + (passwd != null ? passwd.hashCode() : 0);
    result = 31 * result + (sex != null ? sex.hashCode() : 0);
    result = 31 * result + (birthday != null ? birthday.hashCode() : 0);
    result = 31 * result + (phone != null ? phone.hashCode() : 0);
    result = 31 * result + (photo != null ? photo.hashCode() : 0);
    result = 31 * result + (email != null ? email.hashCode() : 0);
    result = 31 * result + (yxbz != null ? yxbz.hashCode() : 0);
    result = 31 * result + (sorts != null ? sorts.hashCode() : 0);
    return result;
  }
}

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持亿速云。