用户七天免登录（记住密码）

前台

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="userLogin.aspx.cs" Inherits="周五重点.userLogin" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
      <div>
            <h1>登录</h1>
            <p>姓名：<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox></p>
            <p>密码：<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox></p>
            <p>
                <asp:RadioButton ID="RadioButton1" runat="server" GroupName="GN" />学生 <asp:RadioButton ID="RadioButton2" runat="server" GroupName="GN" />老师</p>
            <p> <asp:CheckBox ID="CheckBox1" runat="server" />七天免登录</p>
            <p>
                <asp:Button ID="Button1" runat="server" Text="登录" OnClick="Button1_Click" />
            </p>
        </div>
    </form>
</body>
</html>

后台代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;

namespace 周五重点
{
    public partial class userLogin : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                if (Request.Cookies["user"]!=null)
                {
                    this.TextBox1.Text =HttpUtility.UrlDecode(Request.Cookies["user"]["name"].ToString());
                    this.TextBox2.Text = Request.Cookies["user"]["pwd"].ToString();
                    char sf = char.Parse(Request.Cookies["user"]["sf"].ToString());
                    if (sf=='1')
                    {
                        RadioButton1.Checked = true;
                    }
                    else
                    {
                        RadioButton2.Checked = true;
                    }
                }
            }
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            string name = this.TextBox1.Text;
            string pwd = this.TextBox2.Text;
            char sf = char.Parse((RadioButton1.Checked ? 1 : 0).ToString());
            DataTable dt = BLL.Manager.userLogin(name,pwd,sf);
            if (dt.Rows.Count>0)
            {
                if (CheckBox1.Checked)
                {
                    HttpCookie cookie = new HttpCookie("user");
                    cookie.Values.Add("name",HttpUtility.UrlEncode(name));
                    cookie.Values.Add("pwd",pwd);
                    cookie.Values.Add("sf",sf.ToString());
                    cookie.Expires = DateTime.Now.AddDays(7);
                    Response.Cookies.Add(cookie);
                }
                if (RadioButton1.Checked)
                {
                    Session["sname"] = name;
                    Response.Redirect("student.aspx");
                }
                else
                {
                    Session["tname"] = name;
                    Response.Redirect("teacher.aspx");
                }

            }
            else
            {
                Response.Write("<script>alert('该用户不存在')</script>");
            }

        }
    }
}
posted @ 2020-06-17 16:36  忘山川  阅读(754)  评论(0)  编辑  收藏  举报