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 程式師世界 >> 編程語言 >> .NET網頁編程 >> C# >> C#入門知識 >> asp.net 客戶郵件群發功能 SendMail 發送靜態化html,郵件群發sendmail

asp.net 客戶郵件群發功能 SendMail 發送靜態化html,郵件群發sendmail

編輯:C#入門知識

asp.net 客戶郵件群發功能 SendMail 發送靜態化html,郵件群發sendmail


背景:現在幾乎每個企業都要用到郵箱,而在大客戶量情況下,為我們的不同等級的客戶送上節日關懷,以及把我們的喜訊、新品通知到他們是我們急需解決的問題。效果如圖

思路:

1、靜態化網頁模版,首先考慮需要發送什麼,把需要的東西做成小而精美的html靜態化頁面以待發送時候用到;

2、關於發送問題,點擊“發送郵件”彈出群發郵件的框,填寫主題、html的服務器所在地址、收件人(多個);

3、群發的實現。

代碼C#:

/// <summary>
/// 發送失敗的郵箱地址搜集參數
/// </summary>
private string errorMail;

群發郵件點擊事件

protected void BtnSendMail_Click(object sender, EventArgs e)
    {
        if (string.IsNullOrEmpty(txTopic.Value))
        {
            MessageShow("郵件主題必填");
            return;
        }
        if (string.IsNullOrEmpty(txUrl.Value))
        {
            MessageShow("URL內容必填");
            return;
        }
        if (string.IsNullOrEmpty(txTo.Value))
        {
            MessageShow("收件人必填");
            return;
        }

        string email = ConfigurationManager.AppSettings["ManagerSendMailUserName"].ToString();  //登錄用戶郵箱
        string emailpwd = ConfigurationManager.AppSettings["ManagerSendMailUserPwd"].ToString(); //登錄用戶郵箱密碼


        string s = GetHtmlCode(txUrl.Value, "gb2312");
        bool restr = Sendmail(email, txTo.Value, txTopic.Value, true, s, "smtp.exmail.qq.com", email, emailpwd);
        if (restr)
        {
            ClientScript.RegisterStartupScript(this.GetType(), "", "<script>alert('全部發送成功!');</script>");
        }
        else
        {
            ClientScript.RegisterStartupScript(this.GetType(), "",
            "<script>alert('已發送,但以下地址發送失敗:" + errorMail + "可能是地址不存在!');</script>");
        }
    }

 

    /// <summary>
    /// 發送郵件
    /// </summary>
    /// <param name="from">發送人郵件地址</param>
    /// <param name="to">接收人郵件地址</param>
    /// <param name="subject">郵件主題</param>
    /// <param name="isBodyHtml">是否是Html</param>
    /// <param name="body">郵件體</param>
    /// <param name="smtpHost">SMTP服務器地址,例如:smtp.163.com</param>
    /// <param name="userName">用戶名</param>
    /// <param name="password">密碼</param>
    /// <returns>是否成功</returns>
    public bool Sendmail(string from, string to, string subject, bool isBodyHtml, string body, string smtpHost, string userName, string password)
    {
        bool isSuccess = true;
        string[] ts = null;
        if (!string.IsNullOrEmpty(to))
        {
            if (to.Contains(";"))
                ts = to.Split(';');
            else
                ts = new string[] { to };
            foreach (string t in ts)
            {
                if (!string.IsNullOrEmpty(t))
                {
                    MailMessage mm = new MailMessage();
                    mm.From = new MailAddress(from);
                    mm.To.Add(new MailAddress(t));
                    mm.Subject = subject;
                    mm.IsBodyHtml = isBodyHtml;
                    mm.Body = body;
                    SmtpClient sc = new SmtpClient();
                    sc.Host = smtpHost;
                    sc.Port = 25;
                    sc.EnableSsl = false;
                    sc.Credentials = new NetworkCredential(userName, password);
                    sc.UseDefaultCredentials = true;
                    sc.Credentials = new System.Net.NetworkCredential(userName, password);
                    sc.DeliveryMethod = SmtpDeliveryMethod.Network;
                    try
                    {
                        sc.Send(mm);
                    }
                    catch (Exception x)
                    {
                        errorMail += t + ";";
                        isSuccess = false;
                        continue;
                    }
                }
            }
        }
        return isSuccess;
    }

 

    /// <summary>
    /// 獲取指定路徑下的模板的HTML源代碼
    /// </summary>
    /// <param name="TemplatePath">模板的路徑</param>
    /// <param name="EncodingType">網頁類型(有些是UTF8,有些是GB2312)</param>
    /// <returns>源代碼</returns>
    private string GetHtmlCode(string TemplatePath, string EncodingType)
    {
        try
        {
            if (TemplatePath != string.Empty)
            {
                string ForesideUriPath = string.Empty;

                if (!TemplatePath.ToLower().StartsWith("http://"))
                    ForesideUriPath = HttpContext.Current.Server.MapPath("~/") + TemplatePath;
                else
                    ForesideUriPath = TemplatePath;

                WebClient webClient = new WebClient();

                //設置網絡憑證為系統憑證
                webClient.Credentials = CredentialCache.DefaultCredentials;

                //獲取指定URI的網頁的源代碼
                byte[] byteDataBuffer = webClient.DownloadData(ForesideUriPath);

                string htmlCode = "";
                if (EncodingType == "UTF8")
                {
                    htmlCode = Encoding.UTF8.GetString(byteDataBuffer);
                }
                else
                {
                    htmlCode = Encoding.GetEncoding(EncodingType).GetString(byteDataBuffer);
                }

                htmlCode = Regex.Replace(htmlCode, @"<!DOCTYPE\s*HTML\s*PUBLIC[^>]+>", "", RegexOptions.Singleline);
                htmlCode = Regex.Replace(htmlCode, @"\s+", " ", RegexOptions.Singleline);

                return htmlCode;
            }
            else
            {
                return "";
            }
        }
        catch (Exception ee)
        {
            throw (ee);
        }
    }

 

總結:這個功能還是非常有用的,大家可以擴展,定時發送什麼,實現各種爛漫的功能。最後說一聲,祝大家羊年大吉,心想事成!

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