@Override
  public List<T> findPage(int page, int length, Map<String, Object> pram) {
     List<T> result = null;  
     try 
     { 
 　　　　　　　　　 //初始化hql，this.entityClazz.getSimpleName()是泛型的真实类名，在构造函数中获取
       String hql = "from " + this.entityClazz.getSimpleName() + " where 1=1 and "; //注意空格
       Session session = this.sesionFactory.openSession(); //获取连接
       if(!pram.isEmpty())  //判断有无条件
       {
         Iterator<String> it = pram.keySet().iterator(); //迭代map
         while(it.hasNext())
         {
            String key = it.next(); //获取条件map中的key，即条件字段
            hql = hql + key + " like " + "'%" + pram.get(key) + "%'" + " and "; //将字段和模糊值拼接成hql
         }
       }
       hql += " 2=2"; //在hql末尾加上 2=2,方便hql再次拼接
       System.out.println(hql);
       Query query = session.createQuery(hql); 
       query.setFirstResult((page - 1) * length); //设置分页页码  
       query.setMaxResults(length);  //设置每页数据长度
       result = query.list(); //返回结果集
     } catch (RuntimeException re)  
     {  
       throw re;  
     }  
     return result;  
  }