语源科技BlogJava-asutoshttp://www.blogjava.net/asutos/zh-cnThu, 07 May 2026 03:20:39 GMTThu, 07 May 2026 03:20:39 GMT60JPA中常用的主键生成策略http://www.blogjava.net/asutos/archive/2011/08/05/355843.htmlAshdod ZhAshdod ZhFri, 05 Aug 2011 02:08:00 GMThttp://www.blogjava.net/asutos/archive/2011/08/05/355843.htmlhttp://www.blogjava.net/asutos/comments/355843.htmlhttp://www.blogjava.net/asutos/archive/2011/08/05/355843.html#Feedback0http://www.blogjava.net/asutos/comments/commentRss/355843.htmlhttp://www.blogjava.net/asutos/services/trackbacks/355843.html@TableGenerator(name = "id_generator", //生成器的名称,与generator值对应
                table="id_generator", //记录主键的表
                allocationSize=1,   //每次加一
                pkColumnName="gen_name",    // 表用于标识区分主键 
                valueColumnName="gen_value", //主键的值
                pkColumnValue="t_role_id"  // gen_name 的值
                )

@Id
@GeneratedValue(strategy=GenerationType.TABLE,generator="id_generator")
 
  @Id
    @SequenceGenerator(name="role_sequence",sequenceName="seq_t_role")
    @GeneratedValue(strategy=GenerationType.SEQUENCE,generator="role_sequence")
    @Id
    @GeneratedValue(strategy=GenerationType.IDENTITY)


Ashdod Zh 2011-08-05 10:08 发表评论
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