Hibernate批量插入

/**
	 * 批量插入
	 * @param answers
	 */
	public boolean  batchSave(List<SurAnswers> answers){
		System.out.println("批量插入数据条数："+answers.size());
		boolean flag = false;
		Transaction tx = null;
		try {
			tx = getSession().beginTransaction();
			int i =0;
			for(SurAnswers as:answers){
				i++;
				getSession().save(as);
				if(i%10==0){
					getSession().flush();
					getSession().clear();
					tx.commit();
					tx = getSession().beginTransaction();
				}
			}
			tx.commit();
			flag = true;
		} catch (Exception e) {
			e.printStackTrace();
			flag = false;
		}finally{
			closeSession();
		}
		
		return flag;
	}
	/**