mail (2)

namespace zdm.DocLib.Business{    /// <summary>    /// Summary description for SendMailLogic    /// </summary>    public class SendMailLogic    {        /// <summary>        /// 单例访问成员变量        /// </summary>        private static readonly SendMailLogic instance = new SendMailLogic();

        /// <summary>        /// 返回SendMailLogic的单个实例        /// </summary>        public static SendMailLogic Instance        {            get            {                return instance;            }        }

        /// <summary>        /// 构造函数        /// </summary>        public SendMailLogic()        {            //            // TODO: Add constructor logic here            //        }

        /// <summary>        /// 发送邮件        /// </summary>        /// <param name="request"></param>        /// <returns></returns>        public SendMailResponse SendMail( SendMailRequest request )        {            try            {                MailMessage myMail = new MailMessage();                myMail.From = new MailAddress( request.From );                PaserMailAddress( request.To, myMail.To );                PaserMailAddress( request.CC, myMail.CC );                PaserMailAddress( request.Bcc, myMail.Bcc );                myMail.Subject = request.Subject;                myMail.Body = request.Body;

                if (request.Attachments != null)                {                    for (int i = 0; i < request.Attachments.Length; i++)                    {                        System.Net.Mail.Attachment mailAttach = new System.Net.Mail.Attachment(ByteArrayToStream(request.Attachments[i].FileData), request.Attachments[i].FileName);

                        myMail.Attachments.Add( mailAttach );                    }                }

                if (string.IsNullOrEmpty(ConfigurationManager.AppSettings[BizConsts.APPKEY_SMTP_SERVER]))                {                    throw new ApplicationException( "SMTP服务器未设置" );                }

                //Smtp Server                SmtpClient mailClient = new SmtpClient(ConfigurationManager.AppSettings[BizConsts.APPKEY_SMTP_SERVER]);

                if (!string.IsNullOrEmpty(ConfigurationManager.AppSettings[BizConsts.APPKEY_SMTP_SERVERPORT]))                {                    //端口号                    try                    {                        mailClient.Port = Int32.Parse(ConfigurationManager.AppSettings[BizConsts.APPKEY_SMTP_SERVERPORT]);                    }                    catch                    {                        throw new ApplicationException("SMTP服务器端口设置错误，端口必须设置为数值型");                    }                }

                if ( CheckMailUserConfig() )                {                    //需要指定帐户信息                    mailClient.Credentials = new System.Net.NetworkCredential(ConfigurationManager.AppSettings[BizConsts.APPKEY_MAIL_USER], ConfigurationManager.AppSettings[BizConsts.APPKEY_MAIL_USERPW]);

                    mailClient.DeliveryMethod = SmtpDeliveryMethod.Network;                }                               mailClient.Send(myMail);

                SendMailResponse response = new SendMailResponse();

                response.ErrorCode = BizConsts.ERRCODE_SUCCESSFUL.ToString();                response.ErrorMsg = string.Empty;

                return response;            }            catch (SmtpFailedRecipientsException e)            {                Trace.Write("无法发送邮件到所有邮件地址：" + e.Message);

                SendMailResponse response = new SendMailResponse();

                response.ErrorCode = BizConsts.ERRCODE_FAILED.ToString();                response.ErrorMsg = e.Message;

                return response;            }            catch (SmtpFailedRecipientException e)            {                Trace.Write("无法发送邮件到个别邮件地址：" + e.Message);

                SendMailResponse response = new SendMailResponse();

                response.ErrorCode = BizConsts.ERRCODE_FAILED.ToString();                response.ErrorMsg = e.Message;

                return response;            }            catch (SmtpException e)            {                Trace.Write("发送邮件时的Smtp异常：" + e.Message);

                SendMailResponse response = new SendMailResponse();

                response.ErrorCode = BizConsts.ERRCODE_FAILED.ToString();                response.ErrorMsg = e.Message;

                return response;            }            catch (Exception e)            {                Trace.Write("发送邮件时的异常：" + e.Message);

                throw new ApplicationException( "发送邮件时的异常" , e );            }         }

        /// <summary>        /// 解析分解邮件地址        /// </summary>        /// <returns></returns>        private void PaserMailAddress( string mailAddress, MailAddressCollection mailCollection  )        {            if (string.IsNullOrEmpty(mailAddress) )            {                return;            }

            char[] separator = new char[2] {',',';' };            string[] addressArray = mailAddress.Split(separator);

            foreach (string address in addressArray )            {                if(address.Trim() == "")                {                    continue;                }

                mailCollection.Add(new MailAddress(address ));            }        }

        /// <summary>        /// 检查是否配置了邮件帐户        /// </summary>        /// <returns></returns>        private bool CheckMailUserConfig()        {            if (!string.IsNullOrEmpty(ConfigurationManager.AppSettings[BizConsts.APPKEY_MAIL_USER]))            {                return true;            }            else            {                return false;            }        }

        /// <summary>        /// 字节数组转换为流        /// </summary>        /// <param name="byteArray"></param>        /// <returns></returns>        private Stream ByteArrayToStream( byte[] byteArray )        {            MemoryStream mStream = new MemoryStream(byteArray);

            return mStream;        }    }

}