该指令
stmt.executeUpdate()不返回commentId，而是返回ResultSet，然后可以从中获取commentId。像这样
ResultSet rs = stmt.executeQuery(); // Not update, you're returning a ResultSet.if (rs.next()) { comment.setCommentId(rs.getInt(1));}
该指令
stmt.executeUpdate()不返回commentId，而是返回ResultSet，然后可以从中获取commentId。像这样
ResultSet rs = stmt.executeQuery(); // Not update, you're returning a ResultSet.if (rs.next()) { comment.setCommentId(rs.getInt(1));}名师互学网 版权所有 (c)2021-2022 ICP备案号：晋ICP备2021003244-6号
