.net程序 用邮箱找回密码代码

配置文件的配置：

      <add key="Email" value="邮箱用户名"/>
        <add key="Emailpwd" value="邮箱密码"/>
        <add key="EmailUrl" value="回调地址"/>
        <add key="Host" value="邮箱host"/>

       /// <summary>
        /// 发送邮箱（注：QQ邮箱需要开通POP、STMP）
        /// </summary>
        /// <param name="Email">发件人邮箱</param>
        /// <param name="pwd">发件人邮箱密码</param>
        /// <param name="sendEmail">接收人的邮箱</param>
        /// <param name="title">标题</param>
        /// <param name="content">内容</param>
        /// <param name="Host">代理服务器(如：smtp.qq.com)</param>
        public static bool SendMail(string Email, string pwd, string sendEmail, string title, string content, string Host)
        {
            try
             {
                System.Net.Mail.MailMessage objMailMessage;//实例化对象

                // 创建邮件消息
                objMailMessage = new System.Net.Mail.MailMessage();
                objMailMessage.From = new MailAddress(Email);//发件人邮箱
                objMailMessage.To.Add(sendEmail); //收件人邮箱
                objMailMessage.Subject = title;//邮件的标题
                objMailMessage.Body = content;//邮件的内容
                objMailMessage.IsBodyHtml = true; //设置邮件的正文是否可以是html格式的。
                objMailMessage.BodyEncoding = System.Text.Encoding.UTF8;//正文编码格式
                objMailMessage.Priority = System.Net.Mail.MailPriority.High;//设置此邮件的优先级

                SmtpClient smtpClient = new SmtpClient(Host);//代理服务器
                smtpClient.Credentials = new System.Net.NetworkCredential(Email, pwd);//邮件登陆信息
                smtpClient.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;
                smtpClient.Host =  Host;//Host.Substring(0, Host.IndexOf('.')) + "." + objMailMessage.From.Host;
                smtpClient.Send(objMailMessage);//发送
                return true;
            }
            catch( Exception ex )
            {
                return false;
            }
        }

        /// <summary>
        /// 将字符串反序列化为对象
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static object StringDeserializeForObject(string str)
        {
            str = HttpContext.Current.Server.UrlDecode(str);
            Stream serializationStream = new MemoryStream(Convert.FromBase64String(str));
            IFormatter formatter = new BinaryFormatter();
            return formatter.Deserialize(serializationStream);

        }
        /// <summary>
        /// 将对象序列化为字符串
        /// </summary>
        /// <param name="obj"></param>
        /// <returns></returns>
        public static string ObjectSerializeForString(object obj)
        {
            IFormatter formatter = new BinaryFormatter();
            string s = "";
            using (MemoryStream stream = new MemoryStream())
            {
                formatter.Serialize(stream, obj);
                stream.Seek(0L, SeekOrigin.Begin);
                byte[] buffer = new byte[stream.Length];
                s = Convert.ToBase64String(stream.ToArray());
                return HttpContext.Current.Server.UrlEncode(s);
            }
        }


        public static bool SendMailString(Object content, string ToEmail) 
        {
            string Email = ConfigurationManager.AppSettings["Email"].ToString();
            string Emailpwd = ConfigurationManager.AppSettings["Emailpwd"].ToString();
            string EmailUrl = ConfigurationManager.AppSettings["EmailUrl"].ToString();
            string Host = ConfigurationManager.AppSettings["Host"].ToString();
            string url = EmailUrl + "LostPwd.aspx?lostid=" + ObjectSerializeForString(content);
            return SendEmailDefault(Email, Emailpwd, ToEmail, Host, url);
        }

        //默认发送格式  
        public static bool SendEmailDefault(string Email, string pwd, string ToEmail, string Host,string url)  
        {  
            StringBuilder MailContent = new StringBuilder();  
            MailContent.Append("亲爱的*****会员：<br/>");  
            MailContent.Append("    您好！你于");  
            MailContent.Append(DateTime.Now.ToLongTimeString());  
            MailContent.Append("通过******管理中心审请找回密码。<br/>");  
            MailContent.Append("    为了安全起见，请用户点击以下链接重设个人密码：<br/><br/>");
            MailContent.Append("<a href='" + url + "'>" + url + "</a><br/><br/>");  
         
            return SendMail(Email, pwd, ToEmail, "******回密码", MailContent.ToString(), Host);  
        }  
     

事件：

  protected void ImageButton1_Click(object sender, ImageClickEventArgs e)
    {
        ImageButton1.Enabled = false;
        CMS_UsersBLL userbll = new CMS_UsersBLL();
        CMS_Users model = new CMS_Users();
        model = userbll.GetModel(this.regname.Value);
        if (model != null)
        {
            string Email = model.Mail;
            string time = DateTime.Now.ToString();
            Object obj = new Object();
            obj = this.regname.Value + "," + time;

            bool isOk = Helper.SendMailString(obj, Email);
            if (isOk)
            {
                ImageButton1.Enabled = true;
                Maticsoft.Common.MessageBox.Show(this, "已发送到你的邮箱请及时查看！");

            }
            else
            {
                ImageButton1.Enabled = true;
                Maticsoft.Common.MessageBox.Show(this, "发送失败！！");
            }

        }
        else
        {
            ImageButton1.Enabled = true;
            Maticsoft.Common.MessageBox.Show(this, "用户名不存在");
        }
    }
}

接受返回：

protected void updepwd_Click(object sender, ImageClickEventArgs e)
    {
        try
        {

            Object lostid = Helper.StringDeserializeForObject(Helper.GetQueryStringToString("lostid"));
            string strr = lostid.ToString();
            string name = strr.Split(',')[0];
            string passwd = DEncrypt.Encrypt(this.regPasw2.Value);
            string pwd = DEncrypt.Encrypt(passwd);

            CMS_Users user = new CMS_UsersBLL().GetModel(name);
            if (user != null)
            {
                user.User_Name = name;
                user.User_Pwd = pwd;
                if (new CMS_UsersBLL().Update(user))
                {
                    Response.Redirect("Register.aspx?update=update");
                }
            }
        }
        catch (Exception)
        {

            Maticsoft.Common.MessageBox.ShowAndRedirect(this, "非法地址", "Index.aspx");
            return;
        }
    }