hibernate中實現oracle的主鍵自增

1、在oracle 首先創建sequence

      create sequence seq_id
      minvalue 1
      start with 1
      increment by 1
      cache 20;

2.在你的hbm.xml中的配置
   
     <id column="ID0000" name="id" type="integer">
         <generator class="sequence">
              <param name="sequence">seq_id</param>
         </generator>
     </id>

 3.字符串轉日期函數

  

   to_date('2009-12-25','yyyyy-mm-dd')