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C#利用System.Net发送邮件(带 抄送、密送、附件、

关键词:抄送发送邮件附件邮件利用  阅读(772) 赞(15)

[摘要]net2.0后,C#可以利用System.Net发送邮件了。

  net2.0后,C#可以利用System.Net发送邮件了。

  代码整理如下:

 using System;
 using System.Text;
 using System.Net;
 using System.Net.Mail;
 using System.Net.Mime;
 
 namespace LeeStudio.Basic
 {
     /// <summary>
     /// 邮件发送类
     /// </summary>
     public class SendEmail
     {
         private MailMessage mailMessage = new MailMessage(); //实例化一个邮件类
 
         #region 构造函数
         /// <summary>
         /// 构造函数
         /// </summary>
         /// <param name="toAddresses">收件人地址(多个以,号分开)</param>
         /// <param name="fromAddress">发件人地址</param>
         /// <param name="title">主题</param>
         /// <param name="body">正文</param>
         public SendEmail(string toAddresses, string fromAddress, string title, string body)
             : this(toAddresses, fromAddress, "", "", title, body, false)
         {
         }
 
         /// <summary>
         /// 构造函数
         /// </summary>
         /// <param name="toAddress">收件人地址</param>
         /// <param name="fromAddress">发件人地址</param>
         /// <param name="toName">收件人名字</param>
         /// <param name="fromName">发件人姓名</param>
         /// <param name="title">主题</param>
         /// <param name="body">正文</param>
         /// <param name="isBodyHtml">正文是否为html格式</param>
         public SendEmail(string toAddress, string fromAddress, string toName, string fromName, string title, string body, bool isBodyHtml)
         {
             mailMessage.From = new MailAddress(fromAddress, fromName, Encoding.GetEncoding(936));
             if (toName.Equals(""))
                 mailMessage.To.Add(toAddress);
             else
                 mailMessage.To.Add(new MailAddress(toAddress, toName, Encoding.GetEncoding(936)));
 
             mailMessage.Subject = title;
             mailMessage.SubjectEncoding = Encoding.GetEncoding(936);
 
             mailMessage.Body = body;
             mailMessage.IsBodyHtml = isBodyHtml;
             mailMessage.BodyEncoding = Encoding.GetEncoding(936);
         }
         #endregion
 
         /// <summary>
         /// 设置SMTP,并且将邮件发送出去
         /// 所有参数都设置完成后再调用该方法
         /// </summary>
         /// <param name="password">发件人密码</param>
         /// <param name="smtpHost">SMTP服务器地址</param>
         public void SetSmtp(string password, string smtpHost)
         {
             SetSmtp(mailMessage.From.Address, password, smtpHost, 25, false, MailPriority.Normal);
         }
 
         /// <summary>
         /// 设置SMTP,并且将邮件发送出去
         /// 所有参数都设置完成后再调用该方法
         /// </summary>
         /// <param name="address">发件人地址(必须为真实有效的email地址)</param>
         /// <param name="password">发件人密码</param>
         /// <param name="smtpHost">SMTP服务器地址</param>
         /// <param name="smtpPort">SMTP服务器的端口</param>
         /// <param name="isEnableSsl">SMTP服务器是否启用SSL加密</param>
         /// <param name="priority">邮件的优先级</param>
         public void SetSmtp(string address, string password, string smtpHost, int smtpPort, bool isEnableSsl, MailPriority priority)
         {
             SmtpClient smtp = new SmtpClient();
             smtp.DeliveryMethod = SmtpDeliveryMethod.Network;
             smtp.Credentials = new NetworkCredential(address, password);
             smtp.Host = smtpHost;
             smtp.Port = smtpPort;
             smtp.EnableSsl = isEnableSsl;
 
             mailMessage.Priority = priority;
             smtp.Send(mailMessage); //发送邮件
         }
 
         #region //设置邮件地址
         /// <summary>
         /// 设置更多收件人
         /// </summary>
         /// <param name="toAddresses">收件人地址</param>
         public void SetMoreToAddress(string toAddresses)
         {
             mailMessage.To.Add(toAddresses);
         }
 
         /// <summary>
         /// 设置更多收件人
         /// </summary>
         /// <param name="toAddresses">收件人地址</param>
         /// <param name="toName">收件人名字</param>
         public void SetMoreToAddress(string toAddress, string toName)
         {
             mailMessage.To.Add(new MailAddress(toAddress, toName, Encoding.GetEncoding(936)));
         }
 
         /// <summary>
         /// 设置抄送者(多个以,号分开)
         /// </summary>
         /// <param name="ccAddresses">抄送者地址</param>
         public void SetCarbonCopyFor(string ccAddresses)
         {
             mailMessage.CC.Add(ccAddresses);
         }
 
         /// <summary>
         /// 设置抄送者
         /// </summary>
         /// <param name="ccAddress">抄送者地址</param>
         /// <param name="ccName">抄送者名字</param>
         public void SetCarbonCopyFor(string ccAddress, string ccName)
         {
             mailMessage.Bcc.Add(new MailAddress(ccAddress, ccName, Encoding.GetEncoding(936)));
         }
 
         /// <summary>
         /// 设置密送者(多个以,号分开)
         /// </summary>
         /// <param name="bccAddresses">密送者</param>
         public void SetBlindCarbonCopyFor(string bccAddresses)
         {
             mailMessage.Bcc.Add(bccAddresses);
         }
 
         /// <summary>
         /// 设置密送者
         /// </summary>
         /// <param name="bccAddress">密送者</param>
         /// <param name="bccName">密送者名字</param>
         public void SetBlindCarbonCopyFor(string bccAddress, string bccName)
         {
             mailMessage.Bcc.Add(new MailAddress(bccAddress, bccName, Encoding.GetEncoding(936)));
         }
         #endregion
 
         #region 添加附件
         /// <summary>
         /// 添加附件(自动识别文件类型)
         /// </summary>
         /// <param name="fileName">单个文件的路径</param>
         public void Attachments(string fileName)
         {
             mailMessage.Attachments.Add(new Attachment(fileName));
         }
 
         /// <summary>
         /// 添加附件(默认为富文本RTF格式)
         /// </summary>
         /// <param name="fileName">单个文件的路径</param>
         public void AttachmentsForRTF(string fileName)
         {
             mailMessage.Attachments.Add(new Attachment(fileName, MediaTypeNames.Application.Rtf));
         }
         #endregion
     }
 }

  调用是按照需求,自由设置参数。

 using LeeStudio.Basic;
 
 private void SendEmail()
 {
     #region 最简设置
     //SendEmail se = new SendEmail("*****@****.com", "****@163.com", "title", "body");
     //se.SetSmtp("password", "smtp.163.com"); //必须在所有参数设置完后调用此方法
     #endregion
 
     #region 完全设置
     //string toAddresses = "***@**.**,***@**.**";
     //string toNames = "frank,lee";
 
     //SendEmail se = new SendEmail("to@**.**", "from@**.**", "toname", "fromname","title", "body", false);
     //se.SetMoreToAddress("to@**.**", "toName");
     //se.SetCarbonCopyFor("cc@**.**");
     //se.SetBlindCarbonCopyFor("bcc@**.**");
 
     //string filePath = Request.PhysicalApplicationPath + "/file/SendEmail.txt";
     //se.Attachments(filePath);
     //filePath = Request.PhysicalApplicationPath + "/file/RTF文件.docx";
     //se.AttachmentsForRTF(filePath);
     //se.SetSmtp("email", "password", "smtp", 25, true, System.Net.Mail.MailPriority.Normal); //必须在所有参数设置完后调用此方法
     #endregion
 }

  遗留问题:

  当有多个收件人/抄送者/密送者时,如何快速处理?之前的做法是让用户输入字符串,再将字符串一一对应匹配,代码如下:

 /// <summary>
 /// 将邮件地址和名称加入到锯齿数组中
 /// </summary>
 /// <param name="addrs">邮件地址(多个以,号分开)</param>
 /// <param name="names">名称(多个以,号分开)</param>
 /// <returns>地址和名称数组</returns>
 private string[][] SetNameList(string addrs, string names)
 {
     string[][] result = new string[2][];
 
     string[] addr = addrs.Split(',');
     string[] name = names.Split(',');
     result[0] = new string[addr.Length];
     result[1] = new string[name.Length];
 
     for (int i = 0; i < addr.Length; i++)
         result[0][i] = addr[i];
     for (int i = 0; i < name.Length; i++)
         result[1][i] = name[i];
 
     return result;
 }

  首先这个方法就很奇葩,其次,只要用户输入的个数不对应,又要做一堆的异常处理……

  

  有好的方法望不吝赐教。



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