240102 WEB - JSP18

BoardDAO 정리 public int getMaxNum() { Connection con = null; PreparedStatement ps = null; ResultSet rs = null; int num = 0; try { con = getConnection(); String sql = "select max(num) from board"; ps = con.prepareStatement(sql); rs = ps.executeQuery(); if(rs.next()) { num = rs.getInt("max(num)"); } } catch (Exception e) { e.printStackTrace(); } finally { if(rs!=null) { try { rs.close(); } catch (E.....