asp.net基于windows服务实现定时发送邮件的方法

//定义组件 private System.Timers.Timer time; public int nowhour; public int minutes; public string sendTime; public Thread th; public string isOpen;//是否启用定时发送 public string strToEUser; public static int index = -1; public static ArrayList mulitaddress; //服务开始 protected override void OnStart(string[] args) { time = new System.Timers.Timer(); time.Enabled = true; time.AutoReset = true; //定时执行方法 time.Elapsed+=new System.Timers.ElapsedEventHandler(time_Elapsed); UserEmail toUser =new UserEmail(); mulitaddress = GetMailAdressName(); // LogHelper.SaveNote("当前索引的值" + index.ToString()); Thread.Sleep(2000); time.Start(); } public class LogHelper { public static void SaveNote(string note) { FileStream stream = new FileStream(GetLogDirectory("Common") + DateTime.Now.ToString("yyyy-MM-dd") + ".txt", FileMode.Append, FileAccess.Write, FileShare.Delete | FileShare.ReadWrite); StreamWriter writer = new StreamWriter(stream, Encoding.UTF8); writer.WriteLine("================================================================"); writer.WriteLine(string.Format("Note:/t{0}", note)); writer.WriteLine(string.Format("DateTime:/t{0}/r/n/r/n",DateTime.Now.ToString())); stream.Flush(); writer.Close(); stream.Close(); stream.Dispose(); writer.Dispose(); } public static void SaveNote(string note, string txtname) { FileStream stream = new FileStream(GetLogDirectory(txtname) + DateTime.Now.ToString("yyyy-MM-dd") + ".txt", FileMode.Append, FileAccess.Write, FileShare.Delete | FileShare.ReadWrite); StreamWriter writer = new StreamWriter(stream, Encoding.GetEncoding("gb2312")); writer.WriteLine("================================================================"); writer.WriteLine(string.Format("Note:/t{0}", note)); writer.WriteLine(string.Format("DateTime:/t{0}/r/n/r/n", DateTime.Now.ToString("yyyyMMddHHmmss"))); stream.Flush(); writer.Close(); stream.Close(); stream.Dispose(); writer.Dispose(); } public static void SaveException(Exception e) { SaveException(e, string.Empty); } public static void SaveException(Exception e, string memo) { FileStream stream = new FileStream(GetLogDirectory("Common") + DateTime.Now.ToString("yyyy-MM-dd") + ".txt", FileMode.Append, FileAccess.Write, FileShare.Delete | FileShare.ReadWrite); StreamWriter writer = new StreamWriter(stream); writer.WriteLine("================================================================"); writer.WriteLine(string.Format("Memo:/t{0}", memo)); writer.WriteLine(string.Format("DateTime:/t{0}", DateTime.Now.ToShortTimeString())); writer.WriteLine(string.Format("Message:/t{0}", e.Message)); writer.WriteLine(string.Format("StackTrace:/r/n----------/r/n{0}/r/n----------/r/n/r/n/r/n", e.StackTrace)); stream.Flush(); writer.Close(); stream.Close(); stream.Dispose(); writer.Dispose(); } public static string GetLogDirectory(string category) { string baseDirectory = string.Empty; if ((HttpContext.Current != null) && (HttpContext.Current.Server != null)) { baseDirectory = HttpContext.Current.Server.MapPath("~"); } else { baseDirectory = AppDomain.CurrentDomain.BaseDirectory; } if ((baseDirectory[baseDirectory.Length - 1] != 'https://www.jb51.net/') && (baseDirectory[baseDirectory.Length - 1] != '//')) { baseDirectory = baseDirectory + @"https://www.jb51.net/"; } baseDirectory = string.Format(@"{0}Log/{1}/", baseDirectory, category); if (!Directory.Exists(baseDirectory)) { Directory.CreateDirectory(baseDirectory); } return baseDirectory; } } void time_Elapsed(object sender, System.Timers.ElapsedEventArgs e) { try { if (mulitaddress != null) { LogHelper.SaveNote("进入time_Elapsed"); //获取定时发送时间 sendTime = Convert.ToString(GetConfigValue("sendTime")); LogHelper.SaveNote("sendTime" + sendTime); //是否开启定时发送功能 isOpen = GetConfigValue("isOpen"); int sleeptime = Convert.ToInt32(GetConfigValue("SleepTime")); int stoptime = Convert.ToInt32(GetConfigValue("stoptime")); //LogHelper.SaveNote("数组长度" + mulitaddress.Count); // LogHelper.SaveNote("是否开启定时发送功能" + isOpen + "定时时间" + sendTime + "定时小时数:" + Convert.ToInt32(sendTime.Split(new char[] { ':' })[0]) + "定时分钟数:" + Convert.ToInt32(sendTime.Split(new char[] { ':' })[1])); if (isOpen == "true") { //现在时间 小时 nowhour = Convert.ToInt32(DateTime.Now.Hour.ToString());//10 //现在分钟 minutes = Convert.ToInt32(DateTime.Now.Minute.ToString());//5 //获取发送小时 int sendhour = Convert.ToInt32(sendTime.Split(new char[] { ':' })[0]); //获取发送的分钟 int sendMinute = Convert.ToInt32(sendTime.Split(new char[] { ':' })[1]); LogHelper.SaveNote("进入定时发送邮件服务! 定时小时为:" + sendhour.ToString() + "定时分钟为:" + sendMinute.ToString() + "现在小时为:" + nowhour.ToString() + "现在定时的分钟为:" + minutes.ToString()); LogHelper.SaveNote("当前索引的值" + index.ToString()); if (nowhour == stoptime) { LogHelper.SaveNote("停止时间点到了 邮件停止发送 !!!"); index = -1; } else { //如果和当前的时间 小时相等 则定时发送邮件 if ((Convert.ToDateTime(DateTime.Now.ToShortTimeString()) >= Convert.ToDateTime(sendTime)) && index < mulitaddress.Count) { index++; if (index < mulitaddress.Count) { SendEmail(((UserEmail)mulitaddress[index])); } else { LogHelper.SaveNote("发送完毕 当前的索引值为" + index.ToString()); } } } } else { //LogHelper.SaveNote("当前索引的值" + index.ToString()); index++; if (index < mulitaddress.Count) { SendEmail(((UserEmail)mulitaddress[index])); } else { LogHelper.SaveNote("发送完毕 时间停止"); time.Enabled = false; time.Stop(); } } Thread.Sleep(sleeptime); } else LogHelper.SaveNote("mulitaddress=null"); } catch (Exception ex) { LogHelper.SaveNote(ex.ToString()); } } public ArrayList GetMailAdressName() { ArrayList list = new ArrayList(); string strSQL = "select b.mailAddress, a.mailtemplate,a.title from tg_product as a inner join tg_mailOrder as b on a.ccode=b.ccode where a.createtime=(select max(createtime) from tg_product)"; SqlDataReader dr = SqlHelper.ExecuteReader(CommandType.Text, strSQL, null); if (dr.HasRows) { while (dr.Read()) { UserEmail email = new UserEmail(); email.Mailaddres = dr["mailAddress"].ToString(); email.Title = dr["title"].ToString(); email.Contents = dr["mailtemplate"].ToString(); list.Add(email); } } return list; } /// <summary> /// 定义用户邮件 标题 内容 Email地址 /// </summary> public class UserEmail { private string title; private string contents; public string Contents { get { return contents; } set { contents = value; } } private string mailaddres; public string Mailaddres { get { return mailaddres; } set { mailaddres = value; } } public string Title { get{return title;} set { title = value; } } } #region 发送邮件 /// <summary> /// 发送邮件 /// </summary> public void SendEmail(UserEmail user) { try { LogHelper.SaveNote("进入SendEmail!!!"); //邮件服务器 string smtpserver = GetConfigValue("smtpserver"); //发件人的邮箱名称 string emailuserName = GetConfigValue("emailuserName"); //发件人的邮箱密码 string emailuserpwd = GetConfigValue("emailuserpwd"); //邮箱地址 string emailfrom = GetConfigValue("emailfrom"); int port = Convert.ToInt32(GetConfigValue("serverPort")); bool f = true; //是否经过SSL加密 string isSSL = GetConfigValue("SSL"); if (isSSL == "true") { f = true; } else { f = false; } LogHelper.SaveNote("发件人的邮箱名称" + emailuserName + "邮件地址(emailFrom)" + emailfrom + "收件人" + user.Mailaddres); SendEmailToUser(smtpserver, port, f, user.Mailaddres, null, emailuserName, emailuserpwd, emailfrom, user.Title,user.Contents); LogHelper.SaveNote("Send Mail Success"); } //获取异常信息 catch (Exception error) { //写入异常信息 using (StreamWriter sw = new StreamWriter("F://MailErrorlog.txt", true, System.Text.Encoding.UTF8)) { sw.WriteLine(DateTime.Now.ToString() + ":"); sw.WriteLine("Exception 异常信息如下................."); sw.WriteLine(error.ToString()); sw.WriteLine("---------------------------------------------"); sw.Close(); } } } #endregion #region 利用.Net自带类(SmtpClient) 发送邮件 /// <summary> /// 利用.Net自带类(SmtpClient) 发送邮件 /// </summary> /// <param>邮件服务器</param> /// <param>用户名(邮箱名称)</param> /// <param>密码</param> /// <param>是否经过SSL加密</param> /// <param>邮件服务器端口(没有加密 一般都是25)</param> /// <param>发件人</param> /// <param>收件人</param> /// <param>主题</param> /// <param>内容</param> /// <param>发送多人 收件人的邮箱地址以逗号隔开</param> /// <param>发送的附件名称 没有附件则为null or ""</param> public void SendEmailToUser(string stmpserver,int port,bool f, string Mulitaddress, string attachmentName, string username, string pwd, string strfrom, string subject, string body) { string ErrorLog = GetConfigValue("ErrorLog"); SmtpClient smtp = new SmtpClient(); //发送邮件的方式 smtp.DeliveryMethod = SmtpDeliveryMethod.Network; //指定邮件服务器 smtp.Host = stmpserver; //Gmail QQ stmp ssl加密使用的端口 smtp.Port = port; smtp.EnableSsl = f; ;//true 经过ssl加密 //验证发件人的身份 用户名(邮件地址和密码) smtp.Credentials = new System.Net.NetworkCredential(username, pwd); //初始化信息(来自 接收人) MailMessage _mailmessage = new MailMessage(); //_mailmessage.To = strto; //发送多个人 接收人邮件地址以,隔开 _mailmessage.From = new MailAddress(strfrom); _mailmessage.To.Add(Mulitaddress); //如果发送失败,SMTP 服务器将发送 失败邮件通知 _mailmessage.DeliveryNotificationOptions = DeliveryNotificationOptions.OnFailure; //优先级 _mailmessage.Priority = MailPriority.High; //发送主题 _mailmessage.Subject = subject; //有附件则添加附件 if (!string.IsNullOrEmpty(attachmentName)) { System.Net.Mail.Attachment attch = new System.Net.Mail.Attachment(attachmentName); _mailmessage.Attachments.Add(attch); } //邮件主题编码 _mailmessage.SubjectEncoding = System.Text.Encoding.UTF8; //指定发送的格式 (Html) _mailmessage.IsBodyHtml = true; //指定发送邮件的编码 _mailmessage.BodyEncoding = System.Text.Encoding.UTF8; //指定邮件内容 _mailmessage.Body = body; //发送邮件 try { smtp.Send(_mailmessage); } catch (Exception ex) { using (StreamWriter writer = new StreamWriter(ErrorLog+"://MailErrorlog.txt", true, System.Text.Encoding.UTF8)) { writer.WriteLine("---------------------------------------------"); writer.WriteLine("SendEmail方法发送邮件错误日志................"); writer.WriteLine(ex.ToString()); writer.Flush(); writer.Close(); } } } #endregion #region 获取邮件配置节点的值 /// <summary> /// 加载相应配置文件 并按节点名称获取对应的值 /// </summary> /// <param>当前节点的名称</param> /// <returns>返回当前节点名称所对应的值</returns> public string GetConfigValue(string target) { string configpath=System.Windows.Forms.Application.StartupPath.ToString() + "/Email.config"; return GetConfigValue(configpath, target); } /// <summary> /// 根据节点名称获取配置文件对应的值(邮件配置信息) /// </summary> /// <param>配置文件路径</param> /// <param>要获取配置节点的名称</param> /// <returns>返回当前节点名称所对应的值</returns> public string GetConfigValue(string configpath, string target) { XmlDocument doc = new XmlDocument(); //加载文件路径s doc.Load(configpath); //获取当前节点的根节点 XmlElement root = doc.DocumentElement; //获取当前节点下所有匹配子节点元素 XmlNodeList xmlnode = root.GetElementsByTagName(target); //返回值 return xmlnode[0].InnerXml; } #endregion //服务结束 protected override void OnStop() { time.Enabled = false; }

Email.Config如下:

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