mysql查询在数据库正常，但是在java里就报错

Question

select i.id,i.price,i.amount,g.name from orderitem i ,goods g where order_id = ? and i.goods_id = g.idjava.sql.SQLException: Cannot create com.yanzi.model.OrderItem: com.yanzi.model.OrderItem Query: select i.id,i.price,i.amount,g.name from orderitem i ,goods g where order_id = ? and i.goods_id = g.id Parameters: [9]public List<OrderItem> selectAllItem(int orderid) throws SQLException {     QueryRunner r = new QueryRunner(DBUtil.getDataSource());             String sql = "select i.id,i.price,i.amount,g.name from orderitem i ,goods g where order_id = ? and i.goods_id = g.id";     System.out.println(sql);    return r.query(sql, new BeanListHandler<OrderItem>(OrderItem.class),orderid); }