hibernate中用sql addBatch

现在在维护公司前段时间的一个项目，变态的设计 n个表都存有用户表的外键 ，并且是单向的，删除用户无法删除数据，无奈只能写sql了，在hibernate中用了sql的addBatch

Session session=getSession();Transaction ts = session.beginTransaction();Connection conn=session.connection();Statement st=conn.createStatement();String sql="delete from ur where USER_ID in("+subids+")";st.addBatch(sql);sql="delete from RONG_USERS_ROLEINFO where USERS_ID in("+subids+")";st.addBatch(sql);sql="delete from RDMP_RELEVANCESYSTEM where USERS in("+subids+")";st.addBatch(sql);sql="delete from RDMP_RELEVANCESYSTEMPARAMS where USERS in("+subids+")";st.addBatch(sql);sql="delete from Users where id in (" + subids + ")";st.addBatch(sql);st.executeBatch();ts.commit();