C#

ASP.Net邮箱注册激活链接

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实现效果：（图片较大，加载较慢）

实现效果

注意：

1.为了更快的查看效果，链接失效时间设置了1分钟

2.请正确填写发件人邮件和密码或者授权码，关于邮箱开启第三方登录（开通POP）不在赘述

3.大致流程：注册用户后state=0, acticode为用户名+当前时间（毫秒级）并加密再写入数据库，注册成功state=1,过期时间修改为永久，链接失效则会删除用户，如对激活链接进行修改则会提示无效链接

4.彪悍的代码不需要注释…（懒癌）

数据库表：

数据库表结构

项目的数据模块图：

项目结构图

BLL层： 

using EmailRegLink.DAL;
using EmailRegLink.Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
namespace EmailRegLink.BLL
{
    public class UserInfoBLL
    {
        UserInfoDAL userDal = new UserInfoDAL();
        public void Insert(UserInfo user)
        {
            userDal.Insert(user);
        }
        public void update(int id)
        {
            userDal.update(id);
        }
        public UserInfo QueryId(string UserName)
        {
            return userDal.QueryId(UserName);
        }
        public void DeleteById(int id)
        {
            userDal.DeleteById(id);
        }
        public UserInfo isUser(string userName, string Email)
        {
            return userDal.isUser(userName,Email);
        }
    }
}

DAL层：

using EmailRegLink.Model;
using System;
using System.Collections.Generic;
using System.Data.SqlClient;
using System.Linq;
using System.Web;
namespace EmailRegLink.DAL
{
    public class UserInfoDAL
    {
        SQLHelper sqlHelp = new SQLHelper();
        public void Insert(UserInfo user)
        {
            sqlHelp.ExecuteNonQuery(@"INSERT INTO regUser
                       (userName, password,Email,state,actiCode,expTime)
                        VALUES
                       (@userName, @password,@Email,@state,@actiCode,@expTime)",
                       new SqlParameter("@userName", user.userName),
                       new SqlParameter("@password", user.password),
                       new SqlParameter("@Email",user.email),
                       new SqlParameter("@state",user.state=0),
                        new SqlParameter("@actiCode", user.actiCode),
                         new SqlParameter("@expTime", user.expTime));
        }
        public void update(int id)
        {
            sqlHelp.ExecuteNonQuery(@"update regUser set state=1,expTime='9999/12/31 00:00:00' where id=@id",
                new SqlParameter("@id", id));
        }
        public UserInfo QueryId(string userName)
        {
            UserInfo user = new UserInfo();
            SqlDataReader reader = sqlHelp.ExecuteSqlReader("select id,userName,Email,actiCode,expTime,state from regUser where userName=@userName",
                new SqlParameter("@userName", userName));
            while (reader.Read())
            {
                user.id = reader.GetInt32(0);
                user.userName = reader.GetString(1);
                user.email = reader.GetString(2);
                user.actiCode = reader.GetString(3);
                user.expTime = reader.GetDateTime(4);
                user.state = reader.GetInt32(5);
            }
            reader.Close();
            return user;
        }
        public void DeleteById(int id)
        {
            sqlHelp.ExecuteNonQuery("delete from regUser where id=@id",
                new SqlParameter("@id", id));
        }
        public UserInfo isUser(string userName,string Email)
        {
            UserInfo user = new UserInfo();
            SqlDataReader reader = sqlHelp.ExecuteSqlReader("select userName,Email from regUser where userName=@userName or Email=@Email",
                new SqlParameter("@userName", userName),
                new SqlParameter("@Email", Email));
            while (reader.Read())
            {
                user.userName = reader.GetString(0);
                user.email = reader.GetString(1);
            }
            reader.Close();
            return user;
        }
    }
}

Model层（Entity类）：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
namespace EmailRegLink.Model
{
    public class UserInfo
    {
        public int id { get; set; }
        public string userName { get; set; }
        public string password { get; set; }
        public string email { get; set; }
        public int state { get; set; }
        public string actiCode { get; set; }
        public DateTime expTime { get; set; }
    }
}

UI层：

Regist.aspx.cs代码 

using EmailRegLink.BLL;
using EmailRegLink.Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Mail;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace EmailRegLink
{
    public partial class Regist : System.Web.UI.Page
    {
        UserInfo user = new UserInfo();
        UserInfoBLL userBll = new UserInfoBLL();
        protected void Page_Load(object sender, EventArgs e)
        {
        }
        private bool isUser()
        {
            string userName = txtName.Text.Trim();
            string mail = txtMail.Text.Trim();
            string password = txtPwd.Text.Trim();
            user = userBll.isUser(userName, mail);
            if (userName=="")
            {
                Response.Write("用户名不能为空");
                return false;
            }
            if (password == "")
            {
                Response.Write("密码不能为空");
                return false;
            }
            if (mail == "")
            {
                Response.Write("邮箱不能为空");
                return false;
            }
            if (userName == user.userName)
            {
                Response.Write("用户名已存在");
                return false;
            }
            if (mail == user.email)
            {
                Response.Write("邮箱已存在");
                return false;
            }
            else
            {
                userName = "";
                mail = "";
                password = "";
                return true;
            }
        }
        protected void btnReg_Click(object sender, EventArgs e)
        {
            if (isUser() == true)
            {
                user.userName = txtName.Text.Trim();
                user.password = txtPwd.Text.Trim();
                user.email = txtMail.Text.Trim();
                DateTime now = DateTime.Now;
                string strTime = DateTime.Now.AddMinutes(1).ToString() + "." + now.Millisecond;
                DateTime dt = Convert.ToDateTime(strTime);
                user.expTime = dt;
                string strCode = user.userName + dt;
                user.actiCode = EnDecrypt.Encrypt(strCode);
                userBll.Insert(user);
                sendMail();
                Response.Write("邮件已发送");
            }
        }
        private void sendMail()
        {
            string addresser = "邮箱账号";
            string recipient = txtMail.Text.Trim();
            string userName = txtName.Text.Trim();
            string emailPwd = "邮件密码或者授权码";
            user = userBll.QueryId(userName);
            string id = EnDecrypt.Encrypt(user.id.ToString());
            string code = user.actiCode;
            string title = "感谢您注册,请验证邮箱（邮箱注册）";
            string str = string.Format("http://localhost:9312/RegistSuccess.aspx?userName={0}&id={1}&token={2}", userName, id, code); //激活码链接
            string content = "请点击下面的链接完成邮箱验证 " + str;
            MailMessage message = new MailMessage(addresser, recipient);
            message.Subject = title;
            message.Body = content;
            message.Priority = MailPriority.High;
            SmtpClient client = new SmtpClient("邮箱服务器地址", 25);
            client.EnableSsl = false;
            client.UseDefaultCredentials = false;
            client.Credentials = new System.Net.NetworkCredential(addresser, emailPwd);
            client.Send(message);
        }
    }
}

RegistSuccess.aspx.cs代码

using EmailRegLink.BLL;
using EmailRegLink.Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace EmailRegLink
{
    public partial class RegistSuccess : System.Web.UI.Page
    {
        UserInfo user = new UserInfo();
        UserInfoBLL userBll = new UserInfoBLL();
       
        protected void Page_Load(object sender, EventArgs e)
        {
            DateTime now = DateTime.Now;
            string strTime = DateTime.Now.ToString() + "." + now.Millisecond;
            DateTime dt = Convert.ToDateTime(strTime);
            string userName = Request.QueryString["userName"];
            string id =Request.QueryString["id"];
            string token = Request.QueryString["token"];
            string url = Request.Url.AbsoluteUri.ToString();
            if (url=="http://localhost:9312/RegistSuccess.aspx" || userName == null || id == null || token == null)
            {
                Response.Write("无效链接");
                return;
            }
            if (!IsPostBack)
            {
                user = userBll.QueryId(userName);
                string name = user.userName;
                DateTime exptime = user.expTime;
                string code = user.actiCode;
                int flag = user.state;
                
                if (name == userName && flag == 0 && dt < exptime)
                {
                    userBll.update(Convert.ToInt32(EnDecrypt.Decrypt(id)));
                    Response.Write("注册成功");
                }
                else
                {
                    if (code == token && name == userName && flag == 1)
                    {
                        Response.Write("用户已激活");
                        return;
                    }
                    if (name == userName && flag == 0 && dt > exptime)
                    {
                        userBll.DeleteById(Convert.ToInt32(EnDecrypt.Decrypt(id)));
                        Response.Write("失效，请重新注册");
                        return;
                    }
                    else
                    {
                        Response.Write("无效链接");
                    }
                }
            }
        }
    }
}

加解密类：（来源https://www.cnblogs.com/wifi/articles/2482350.html）

还有数据库访问类（SQLHelper.cs）和url加解密类（EnDecrypt.cs）就不贴出来了

GitHub下载地址：https://github.com/kiritobin/EmailRegLink

原文链接：https://www.idaobin.com/archives/1285.html

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