这段代码针对的是postgres的，对oracle的话，应该也是一样

private Integer id;
@Id
 @GeneratedValue(strategy=GenerationType.SEQUENCE,generator="job_id_seq")
 @SequenceGenerator(name="job_id_seq",sequenceName="job_id_seq")
 @Column(name = "id", unique = true, nullable = false, insertable = true, updatable = true)
 public Integer getId() {
  return this.id;
 }
 public void setId(Integer id) {
  this.id = id;
 }

job_id_seq 为自己定义，其他地方不需再定义

如果针对mySql的话，只需

@GeneratedValue(strategy=GenerationType.IDENTITY)