using System;
using System.IO;
using System.Data;
using System.Configuration;
using System.Reflection;
using System.Web;
using System.Web.Security;
using System.Diagnostics;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Collections;
using System.Net;
using System.Net.Mail;
namespace 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;
}
}
}