231226 WEB - JSP16

DOCTYPE html> board/01writePro.jsp board/writePro.jsp BoardDAO public int getMaxNum() { int num = 0; try { Connection con = getConnection(); String sql = "select max(num) from board"; PreparedStatement ps = con.prepareStatement(sql); ResultSet rs = ps.executeQuery(); if(rs.next()) { num = rs.getInt("max(num)"); } } catch (Exception e) { e.printStackTrace(); } return num; } writePro //max(num)+1 .....