[转]mail里显示图片

最近看到很多人在问这个问题.就是如何在Mail的正文中如何显示附件的图片?本人也不会就去网上搜索.可是网上竟然没有(可能是太简单,很多人不屑提供代码),于是本人就尝试. 最先想到的就是outLook可以显示附件中的图片.于是在OutLook的邮件正文:右键->ViewSource 就看到了 1" " 这种代码所以产生的第一个想法就是在写正文的时候,自动根据附件去生成类似代码.说干就干,马上动手! 新建一个网站,拖几个FileUpload 上去.如下图 根据MicroSoft自带的System.Net.Mail 组件,完成发送方法,代码如下 1using System; 2using System.Collections.Generic; 3using System.Text; 4using System.Net.Mail; 5using System.Net; 6using System.IO; 7namespace STS.MailSystem.Common 8{ 9publicclass QMail 10{ 11///

12/// 描述:Email发送通用函数 13///

14///发件人 15///收件人(多个收件人以逗号隔开) 16///主题 17///内容 18///附件 19/// 20publicstring MailSend(string from, string to, string cc, string subject, string text, Attachment attch, string priority) 21{ 22 MailMessage message =new MailMessage(from, to); 23 message.CC.Add(cc); 24 message.Subject = subject; 25 message.Body = text; 26 27 28//message.CC.Add(new MailAddress(from)); //超送给自己 29//message.Bcc.Add(new MailAddress("")); 30 31if (attch !=null) 32{ 33 Attachment data = attch; 34 message.Attachments.Add(data); 35 } 36 37 message.BodyEncoding = System.Text.Encoding.UTF8;//编码方式 38switch (priority.ToUpper()) 39{ 40case"HIGH": 41 message.Priority = MailPriority.High;//优先级 42break; 43case"NORMAL": 44 message.Priority = MailPriority.Normal;//优先级 45break; 46case"LOW": 47 message.Priority = MailPriority.Low;//优先级 48break; 49default: 50 message.Priority = MailPriority.Normal;//优先级 51break; 52 } 53 54 message.IsBodyHtml =true;//是否是html格式 55 SmtpClient client =new SmtpClient();//不同情况更改 56 57//client.Credentials = CredentialCache.DefaultNetworkCredentials;//匿名认证 58 59 60try 61{ 62 client.Send(message); 63return"1"; 64 } 65catch (Exception e) 66{ 67 68return e.Message; 69 } 70 71 } 72 73 74 75 } 76} 77 78 然后看看我们的前台代码 1using System; 2using System.Data; 3using System.Configuration; 4using System.Web; 5using System.Web.Security; 6using System.Web.UI; 7using System.Web.UI.WebControls; 8using System.Web.UI.WebControls.WebParts; 9using System.Web.UI.HtmlControls; 10using System.Net.Mail; 11using STS.MailSystem.Common; 12using System.Text; 13 14publicpartialclass _Default : System.Web.UI.Page 15{ 16protectedvoid Page_Load(object sender, EventArgs e) 17{ 18 19 } 20protectedvoid Button1_Click(object sender, EventArgs e) 21{ 22 QMail mail =new QMail(); 23 24 Attachment attachment =null; 25//File Name 26string fileName =string.Empty; 27string filePath =string.Empty; 28 StringBuilder mailBody =new StringBuilder(); 29//mailBody.Append("content-type:base64"); 30//mailBody.Append("content-transfer-encodinf:"); 31//mailBody.Append("content-disposition:inline"); 32//mailBody.Append("filename:aa"); 33//增加附件 34//这里指去考虑附件是图片的情况. 35//其他情况不考虑 36if (File1.Value !="") 37{ 38 filePath =this.File1.PostedFile.FileName; 39 fileName = filePath.Substring(filePath.LastIndexOf("\\") +1); 40//增加显示图片 41 mailBody.Append("content-id:"+ fileName); 42 mailBody.Append(""); 43 attachment =new Attachment(filePath); 44 } 45 46 47//Send Mail 48 mail.MailSend("minqiang.zhang@metinform.cn", "minqiang.zhang@metinform.cn", 49"minqiang.zhang@metinform.cn", "演示如果在正文显示附件", mailBody.ToString(), attachment, ""); 50 51 } 52 } 53 54