Java學習

數據庫 批量操作， 函數執行

 1. 批量 delete 和 save

    public void deleteAllData() {
        List l=this.getHibernateTemplate().find("from SchedulerSeq");
        if(l!=null && l.size()>0)
            this.getHibernateTemplate().deleteAll(l);
       
    }

    public void saveAll(List<BusBatIn> batinList) {
        this.getHibernateTemplate().saveOrUpdateAll(batinList);
       
    }

 執行函數

    public void callSaveBusStatus(Date lastTime) {
        Connection con=this.getSession().connection();

        PreparedStatement st = null;

       
       
        try {
            if(lastTime==null){
                st = con.prepareStatement("select savet_vehicle_status(?) from Dual ");
                st.setString(1,BusConstant.VEHICLE_BUS);
            }else{
                st = con.prepareStatement("select savet_vehicle_status(?,?) from Dual ");
                st.setTimestamp(1,java.sql.Timestamp.valueOf(String.valueOf(lastTime)));
                st.setString(2,BusConstant.VEHICLE_BUS);
            }
        
               
            st.execute();
                       
        } catch (SQLException e) {
            e.printStackTrace();
        } finally {

            try{
                if(st != null){
                    st.close();
                }
            } catch (Exception e) {
                st = null;
            }
            try{
                if(con != null){
                    con.close();
                }
            } catch (Exception e) {
                con = null;
            }
        }
       
    }
 

posted on 2008-10-24 17:08 找個美女做老婆 閱讀(268) 評論(0)  編輯  收藏