DAO类首先是继承了HibernateDaoSupport  类的

//这里是一个查询在<pre name="code" class="java">getHibernateTemplate()对象的execute()方法这里需要一个内部类 执行<span style="font-family: Arial, Helvetica, sans-serif;">doInHibernate()方法</span>

public int executeUpdateSql(final String sql) {  return (Integer)getHibernateTemplate().execute(new HibernateCallback(){  public Object doInHibernate(Session session)  throws HibernateException, SQLException {   Query query = session.createSQLQuery(sql);  return query.executeUpdate();}  }); } 

public List<String[]>queryPagerListWithArrayBySql(final String countSql,final String strSql,Pager pager){List<String[]>result= new ArrayList<String[]>();try{List<Object[]> items= (List<Object[]>) this.getHibernateTemplate().executeFind(new SqlPageSupport(countSql, strSql, pager));for(Object[] objs : items){String []s = new String[objs.length];for(int i=0;i<objs.length;i++){s[i]=(objs[i]==null?"":String.valueOf(objs[i]));}result.add(s);}}catch(Exception e){e.printStackTrace();}return result;}

public List<String[]> queryListWithArrayBySql(final String strSql){List<String[]>result= new ArrayList<String[]>();try{List<Object[]> items= (List<Object[]>) this.getHibernateTemplate().execute(new HibernateCallback() { public Object doInHibernate(Session session) throws HibernateException {//queryQuery query = session.createSQLQuery(strSql); List list = query.list();return list; }});for(Object[] objs : items){String []s = new String[objs.length];for(int i=0;i<objs.length;i++){s[i]=(objs[i]==null?"":String.valueOf(objs[i]));}result.add(s);}}catch(Exception e){e.printStackTrace();}return result;}