equipment is not mapped 哈哈

	public List allEquipment() {
		Session session = MySessionFactory.getSession();
		List list= new ArrayList();
		Transaction ts = null;
		try {
			ts = session.beginTransaction();
			String HQL = "select a from equipment as a order by a.id";
			Query query = session.createQuery(HQL);
			list = query.list();
			ts.commit();
		} catch (Exception e) {
			ts.rollback();
			System.out.println("查询所有，系统出现错误，原因为：");
			e.printStackTrace();
		}finally{
			MySessionFactory.closeSession();
		}
		return list;
	}

 上面这个和下面这个 有什么不同呢？不过上面这个就是不能运行 报这个错误：equipment is not mapped

	public List allEquipment() {
		Session session = MySessionFactory.getSession();
		List list = new ArrayList();
		Transaction ts = null;
		try {
			ts = session.beginTransaction();
			String HQL = "select a from Equipment as a order by a.id";
			Query query = session.createQuery(HQL);
			list = query.list();
			ts.commit();
		} catch (Exception e) {
			ts.rollback();
			System.out.println("查询所有，系统出现错误，原因为：");
			e.printStackTrace();
		}finally{
			MySessionFactory.closeSession();
		}
		return list;
	}

 注意sql 语句

上面：String HQL = "select a from equipment as a order by a.id";
下面：String HQL = "select a from Equipment as a order by a.id";
这个家伙大小写不行啊。。。