已采納回答 / vvflag
有用到的,首先用conn.prepareStatement(sql)返回PreparedStatement對象stat,再用stat.executeQuery()返回一個ResultSet對象rs,然后才能用while循環(huán)獲取rs里面的內(nèi)容 stat = conn.prepareStatement(sql); rs = stat.executeQuery();while(rs.next()){.....}
2016-08-25