<%@ page contentType="text/html;charset=utf-8" language="java"%> <%@ page import="java.util.Vector"%> <%@ page import="com.wgh.UserForm"%> <% request.setCharacterEncoding("utf-8"); Object username = session.getAttribute("actualuser"); boolean flag = true; Vector temp = (Vector) application.getAttribute("myuser"); if (application.getAttribute("myuser") == null) { temp = new Vector(); } UserForm mylist = new UserForm(); mylist.username = (String) username; //保存当前登录的用户名 Vector myuser = (Vector) application.getAttribute("myuser"); if (myuser == null) { myuser = new Vector(); } if (flag) { myuser.addElement(mylist); } application.setAttribute("myuser", myuser); response.sendRedirect("main.jsp"); %>