请问这句话怎么理解?
在 pstmt = conn.prepareStatement(sql); pstmt.setString(1, user.getName());
pstmt.setString(2, user.getPassword());
pstmt.setInt(3, user.getValid());
pstmt.setString(4, user.getEmail());
pstmt.setString(5, user.getPhone());
pstmt.setTimestamp(6, new Timestamp(new Date().getTime()));
pstmt.executeUpdate();
中,假如不写 pstmt = conn.prepareStatement(sql);这一句行吗?
在 pstmt = conn.prepareStatement(sql); pstmt.setString(1, user.getName());
pstmt.setString(2, user.getPassword());
pstmt.setInt(3, user.getValid());
pstmt.setString(4, user.getEmail());
pstmt.setString(5, user.getPhone());
pstmt.setTimestamp(6, new Timestamp(new Date().getTime()));
pstmt.executeUpdate();
中,假如不写 pstmt = conn.prepareStatement(sql);这一句行吗?
解决方案 »
免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货