#region 邮件帮助类
//+-------------------------------------------------------------------+
//+ FileName: MailHelper.cs
//+ File Created: 2016-9-12
//+-------------------------------------------------------------------+
//+ Purpose: 邮件帮助类
//+-------------------------------------------------------------------+
//+-------------------------------------------------------------------+
//+ UpdateHistory: 修改的内容
//+-------------------------------------------------------------------+
/// <summary>
/// 邮件帮助类
/// </summary>
public static class SendMailHelper
{
/// <summary>
/// 发送邮件
/// </summary>
/// <param name="request">邮件内容对象</param>
/// <returns>发送邮件所遇到的异常</returns>
public static string SendMail(MailRequest request)
{
try
{
MailMessage mail = new MailMessage(); if (string.IsNullOrEmpty(request.From))
{
request.From = WebConfigurationManager.AppSettings["DefaultMailFrom"];
}
mail.From = new MailAddress(request.From); PaserMailAddress(request.To, mail.To);
PaserMailAddress(request.CC, mail.CC);
PaserMailAddress(request.Bcc, mail.Bcc); mail.Subject = request.Subject;
mail.SubjectEncoding = System.Text.Encoding.UTF8;
mail.Body = request.Body;
mail.ReplyTo = new MailAddress(request.From);
mail.IsBodyHtml = true; if (request.Attachments != null && request.Attachments.Length > 0)
{
for (int i = 0; i < request.Attachments.Length; i++)
{
Attachment mailAttach = new Attachment(ByteArrayToStream(request.Attachments[i].FileData), request.Attachments[i].FileName); mail.Attachments.Add(mailAttach);
}
} if (string.IsNullOrEmpty(WebConfigurationManager.AppSettings["SMTPSERVER"]))
{
throw new ApplicationException("邮件服务无效");
} //Smtp Server
SmtpClient mailClient = new SmtpClient(WebConfigurationManager.AppSettings["SMTPSERVER"]); if (!string.IsNullOrEmpty(WebConfigurationManager.AppSettings["SMTPSERVERPORT"]))
{
//端口号
try
{
mailClient.Port = Int32.Parse(WebConfigurationManager.AppSettings["SMTPSERVERPORT"]);
}
catch
{
return "SMTP服务器端口设置错误，端口必须设置为数值型";
}
} if (!string.IsNullOrEmpty(WebConfigurationManager.AppSettings["MAILUSER"]))
{
mailClient.Credentials = new System.Net.NetworkCredential(WebConfigurationManager.AppSettings["MAILUSER"], WebConfigurationManager.AppSettings["MAILUSERPW"]);
mailClient.DeliveryMethod = SmtpDeliveryMethod.Network;
}
else
{
mailClient.Credentials = CredentialCache.DefaultNetworkCredentials;
} mailClient.Send(mail);
mail.Dispose(); return string.Empty;
}
catch (SmtpFailedRecipientsException e)
{
Logger.Write("无法发送邮件到所有邮件地址");
Logger.Write(e); return e.Message;
}
catch (SmtpFailedRecipientException e)
{
Logger.Write("无法发送邮件到个别邮件地址");
Logger.Write(e); return e.Message;
}
catch (SmtpException e)
{
Logger.Write("发送邮件时的Smtp异常");
Logger.Write(e); return e.Message;
}
catch (Exception e)
{
Logger.Write("发送邮件时的异常");
Logger.Write(e); return e.Message;
}
} /// <summary>
/// 解析分解邮件地址
/// </summary>
/// <param name="mailAddress">邮件地址</param>
/// <param name="mailCollection">邮件对象</param>
private static 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() == string.Empty)
{
continue;
} mailCollection.Add(new MailAddress(address));
}
} /// <summary>
/// 字节数组转换为流
/// </summary>
/// <param name="byteArray">字节数组</param>
/// <returns>Stream</returns>
private static Stream ByteArrayToStream(byte[] byteArray)
{
MemoryStream mstream = new MemoryStream(byteArray); return mstream;
}
}
#endregion
需要引入命名空间
using System;
using System.Reflection;
using System.Net.Mail;
using System.Web.Configuration;
using System.Net;
using System.IO;
其中 帮助类中的服务器地址 和 账号 密码需要在配置文件中配置
<add key="SMTPSERVER" value="邮件服务器"/>
<add key="MAILUSER" value="账号"/>
<add key="MAILUSERPW" value="密码"/>