数据库字段ID增长方式

1. （strategy = "native"）
// Property accessors
    @GenericGenerator(name = "generator", strategy = "native")
    @Id
    @GeneratedValue(generator = "generator")
    @Column(name = "ID", unique = true, nullable = false)
    public Integer getId() {
        return this.id;
    }
 
    public void setId(Integer id) {
        this.id = id;
    }
 
2.( strategy = "increment")
// Property accessors
    @GenericGenerator(name = "generator", strategy = "increment")
    @Id
    @GeneratedValue(generator = "generator")
    @Column(name = "ID", unique = true, nullable = false)
    public String getId() {
        return this.id;
    }
 
    public void setId(String id) {
        this.id = id;
    }