.NET中通過OUTLOOK發送附件內容

最近碰到一個發送郵件附件的問題，隨便幾下來，方便以後學習。　

　　　　　string[] files = System.IO.Directory.GetFiles(@"~/UploadData" + "/" + DateTime.Now.ToString("yyyyMM"));  //獲取文件路徑 
                foreach (string file in files)  //循環文件夾裏面文件個個數
                {
                    //string extension = System.IO.Path.GetExtension(file); 文件擴展名
                      var attachmentMail = new System.Net.Mail.Attachment(@file);   
                      message.Attachments.Add(attachmentMail);
                }

　　  smtp.Send(message);   //發送郵件
                ret.success = true;
                ret.message = "发送成功";

CODE:

   /// <summary>
        /// 发送邮件
        /// </summary>
        /// <param name="subject">邮件标题</param>
        /// <param name="body">内容</param>
        /// <param name="tos">接收者 格式 test@test.com 或 姓名:test@test.com</param>
        /// <param name="ccs">抄送者 格式 test@test.com 或 姓名:test@test.com</param>
        /// <param name="bccs">密送者 格式 test@test.com 或 姓名:test@test.com</param>
        /// <returns></returns>
        public static OA.Common.Result SendMail(string subject, string body, string[] tos, string[] ccs, string[] bccs)
        {
            OA.Common.Result ret = new OA.Common.Result();
           /* try
            {*/
                var config = new SystemConfig().LoadConfig().Mail;
                System.Net.Mail.SmtpClient smtp = new System.Net.Mail.SmtpClient(config.SMTPServer, config.SMTPPort);
                smtp.UseDefaultCredentials = false;
                smtp.Credentials = new System.Net.NetworkCredential(config.UserName, config.Password);
                smtp.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;

                System.Net.Mail.MailMessage message = new System.Net.Mail.MailMessage();
                message.BodyEncoding = System.Text.Encoding.UTF8;
                message.SubjectEncoding = System.Text.Encoding.UTF8;
                message.IsBodyHtml = true;
                message.From = new System.Net.Mail.MailAddress(config.From, config.NickName);
                message.Subject = subject;
                message.Body = body;
                foreach (var to in tos)
                {
                    var tt = to.Split(':');
                    if (tt.Length > 1)
                    {
                        message.To.Add(new System.Net.Mail.MailAddress(tt[1], tt[0]));
                    }
                    else
                    {
                        message.To.Add(tt[0]);
                    }
                }
                if (ccs != null)
                {
                    foreach (var to in ccs)
                    {
                        var tt = to.Split(':');
                        if (tt.Length > 1)
                        {
                            message.CC.Add(new System.Net.Mail.MailAddress(tt[1], tt[0]));
                        }
                        else
                        {
                            message.CC.Add(tt[0]);
                        }
                    }
                }
                if (bccs != null)
                {
                    foreach (var to in bccs)
                    {
                        var tt = to.Split(':');
                        if (tt.Length > 1)
                        {
                            message.Bcc.Add(new System.Net.Mail.MailAddress(tt[1], tt[0]));
                        }
                        else
                        {
                            message.Bcc.Add(tt[0]);
                        }
                    }
                }

                //--发送邮件附件--
                string[] files = System.IO.Directory.GetFiles(@"~/UploadData" + "/" + DateTime.Now.ToString("yyyyMM"));
                foreach (string file in files)
                {
                    //string extension = System.IO.Path.GetExtension(file);
                      var attachmentMail = new System.Net.Mail.Attachment(@file);
                      message.Attachments.Add(attachmentMail);
                }
               //--the end-- 

                smtp.Send(message);
                ret.success = true;
                ret.message = "发送成功";
                /*
            }
            catch(Exception e)
            {
                throw e;
                ret.success = false;
                ret.message = e.Message;
            }*/
            return ret;
        }