这是我的代码插入数据的顺序colunm,但我的困惑是,我提供什么类型的值在users_id这是foriegn关键在订单表中我希望users_id通过当前记录的会话给值想要下订单的用户,其ID是save aginst他的订单记录代码在这里。如何通过会话获取ID
<% request.getSession().getAttribute("users_id");%>
<% String add = request.getParameter("add");
String type = request.getParameter("order_type");
String city = request.getParameter("city");
String veh = request.getParameter("vehicles");
String date = request.getParameter("order_date");
String users_id = request.getParameter("users_id");
Class.forName("com.mysql.jdbc.Driver");
Connection con =
DriverManager.getConnection("jdbc:mysql://localhost:3306/auto_lube","root", "mehar");
Statement st = con.createStatement();
System.out.println(add);
//ResultSet rs;
int i = st.executeUpdate("INSERT INTO `user_order` (`id`, `address`, `order_type`, `city`, `vehicle`, `order_date`, `users_id`) VALUES (NULL, '"+add+"', '"+type+"', '"+city+"', '"+veh+"', '2','"+users_id+"')");
%>