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

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

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;  }}