islogin.jsp

用户登录

<%@page contentType="text/html;charset=gb2312" import="java.sql.*"%>
<jsp:useBean id="user" scope="request" class="myapp.User"/>
<jsp:useBean id="md5" scope="request" class="myapp.MD5"/>
<jsp:useBean id="dateTimeFormat" scope="request" class="myapp.DateTimeFormat"/>
<%
  //用户登录验证
  String username = new String(request.getParameter("username").trim().getBytes("ISO-8859-1"));
  String password = new String(request.getParameter("password").trim().getBytes("ISO-8859-1"));
  String password1 = md5.getMD5ofStr(password); //数据加密
  if (user.userExist(username)) {
    response.sendRedirect("error.jsp?errorMessage=User is not valid.");
  }
  else if (!user.isValidUser(username, password1)) {
    response.sendRedirect("error.jsp?errorMessage=Password is not valid.");
  }
  else {
    String rights = user.userRights(username, password1); //获取用户权限
    String loginIP = request.getRemoteAddr(); //获取用户IP
    String loginDateTime = dateTimeFormat.getCurrentDateTime(); //获取当前日期时间
    session.setAttribute("username", username); //保存用户名
    session.setAttribute("rights", rights); //保存用户权限
    session.setAttribute("loginIP", loginIP); //保存用户IP
    session.setAttribute("loginDateTime", loginDateTime); //保存当前日期时间
    user.setUserLoginInfo(loginDateTime, loginIP, username); //记录用户登录信息
    user.saveUserLoginLog(username, loginDateTime); //保存用户登录日志
    response.sendRedirect("main.jsp"); //打开主页面
  }
%>