jsp-4 用cookie实现记住密码

用cookie实现记住密码

这次就有点简单了

基本是jsp-3的代码但是有些修改

public void login(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        User user=new User();
        String username=req.getParameter("username");
        user.setUsername(username);
        String password=req.getParameter("password");
        user.setPassword(password);
        
        User use=userServive.login(user);
        if(use!=null){
            String [] ischeck=req.getParameterValues("ischeck");
            if(ischeck!=null&&"true".equals(ischeck[0])){
                //添加cookie信息
                Cookie usernameCookie=new Cookie("username", username);
                Cookie passwordCookie=new Cookie("password",password );
                usernameCookie.setMaxAge(60*60*24*1);//一天
                passwordCookie.setMaxAge(60*60*24*1);
                resp.addCookie(usernameCookie);
                resp.addCookie(passwordCookie);
            }
            resp.sendRedirect("loginSuccess.jsp");
        }else{
            resp.sendRedirect("loginFail.jsp");
        }
    }
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%
    String path = request.getContextPath();
    String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path;
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<%
String username="";
String password="";
//取出Cookie
Cookie [] cookie=request.getCookies();
for(int i=0;i<cookie.length;i++){
  if(cookie[i].getName().equals("username")){
      username=cookie[i].getValue();
  }
  if(cookie[i].getName().equals("password")){
      password=cookie[i].getValue();
  }
}

%>
<form action="<%=basePath%>/login.do" method="post">
    <table border=0 cellpadding=0 cellspacing=0  style="margin:auto;border-collapse:separate; border-spacing:10px;">
        <tr align="center">
            <td colspan="2">
                <label>登录</label>
            </td>
        </tr>
        <tr>    
            <td>
                用户名：
            </td>
            <td>
                <input type="text" name="username" value="<%=username%>">
            </td>
        </tr>
        <tr>
            <td>
                密码:
            </td>
            <td> 
                <input type="password" name="password" value="<%=password%>">
            </td>
        </tr>
        <tr>
            <td>
                <input type="checkbox" name="ischeck">记住我?
            </td>
            <td>
                &nbsp;&nbsp;<a href="<%=basePath%>/toRegister.do">注册</a>
            </td>
        </tr>
        <tr align="center">
            <td>
                <input type="submit" value="登录">
            </td>
            <td>
                <input type="reset" value="重置">
            </td>
        </tr>
    </table>
</form>


</body>
</html>

我就在纠结的是根据mvc的原则，cookie的操作是不是放在jsp？

posted @ 2017-01-15 18:59  lgp20151222  阅读(355)  评论(0)  编辑  收藏  举报