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
" <img width&＃61;560 height&＃61;420 id&＃61;"_x0000_i1025"
2src&＃61;"cid:image001.jpg&＃64;01C8C4AF.C7E6ED20">"
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!" <img width&＃61;560 height&＃61;420 id&＃61;"_x0000_i1025"2
src&＃61;"cid:image001.jpg&＃64;01C8C4AF.C7E6ED20">" 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
{
9
public class QMail
10
{
11 /**////
12 /// 描述:Email发送通用函数
13 ///
14 ///
15 ///
16 ///
17 ///
18 ///
19
///
20 public string MailSend(string from, string to, string cc, string subject, string text, Attachment attch, string priority)
21 {
22 MailMessage message &＃61; new MailMessage(from, to);
23 message.CC.Add(cc);
24 message.Subject &＃61; subject;
25 message.Body &＃61; text;
26
27
28 //message.CC.Add(new MailAddress(from)); //超送给自己
29 //message.Bcc.Add(new MailAddress(""));
30
31 if (attch !&＃61; null)
32 {
33 Attachment data &＃61; attch;
34 message.Attachments.Add(data);
35 }
36
37 message.BodyEncoding &＃61; System.Text.Encoding.UTF8;//编码方式
38 switch (priority.ToUpper())
39 {
40 case "HIGH":
41 message.Priority &＃61; MailPriority.High;//优先级
42 break;
43 case "NORMAL":
44 message.Priority &＃61; MailPriority.Normal;//优先级
45 break;
46 case "LOW":
47 message.Priority &＃61; MailPriority.Low;//优先级
48 break;
49 default:
50 message.Priority &＃61; MailPriority.Normal;//优先级
51 break;
52 }
53
54 message.IsBodyHtml &＃61; true;//是否是html格式
55 SmtpClient client &＃61; new SmtpClient();//不同情况更改
56
57 //client.Credentials &＃61; CredentialCache.DefaultNetworkCredentials;//匿名认证
58
59
60 try
61 {
62 client.Send(message);
63 return "1";
64 }
65 catch (Exception e)
66 {
67
68 return e.Message;
69 }
70
71 }
72
73
74
75 }
76
}
77
78
using System;2
using System.Collections.Generic;3
using System.Text;4
using System.Net.Mail;5
using System.Net;6
using System.IO;7
namespace STS.MailSystem.Common8
{9
public class QMail10
{11
/**//// 12
/// 描述:Email发送通用函数13
/// 14
/// 15
/// 16
/// 17
/// 18
/// 19
/// 20
public string MailSend(string from, string to, string cc, string subject, string text, Attachment attch, string priority)21
{22
MailMessage message &＃61; new MailMessage(from, to);23
message.CC.Add(cc);24
message.Subject &＃61; subject;25
message.Body &＃61; text;26
27
28
//message.CC.Add(new MailAddress(from)); //超送给自己29
//message.Bcc.Add(new MailAddress(""));30
31
if (attch !&＃61; null)32
{33
Attachment data &＃61; attch;34
message.Attachments.Add(data);35
}36
37
message.BodyEncoding &＃61; System.Text.Encoding.UTF8;//编码方式38
switch (priority.ToUpper())39
{ 40
case "HIGH":41
message.Priority &＃61; MailPriority.High;//优先级42
break;43
case "NORMAL":44
message.Priority &＃61; MailPriority.Normal;//优先级45
break;46
case "LOW":47
message.Priority &＃61; MailPriority.Low;//优先级48
break;49
default:50
message.Priority &＃61; MailPriority.Normal;//优先级51
break;52
}53
54
message.IsBodyHtml &＃61; true;//是否是html格式55
SmtpClient client &＃61; new SmtpClient();//不同情况更改56
57
//client.Credentials &＃61; CredentialCache.DefaultNetworkCredentials;//匿名认证58
59
60
try61
{62
client.Send(message);63
return "1";64
}65
catch (Exception e)66
{67
68
return 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
14 public partial class _Default : System.Web.UI.Page
15 {
16 protected void Page_Load(object sender, EventArgs e)
17 {
18
19 }
20 protected void Button1_Click(object sender, EventArgs e)
21 {
22 QMail mail &＃61; new QMail();
23
24 Attachment attachment &＃61; null;
25 //File Name
26 string fileName &＃61; string.Empty;
27 string filePath &＃61; string.Empty;
28 StringBuilder mailBody &＃61; 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
36 if (File1.Value !&＃61; "")
37 {
38 filePath &＃61; this.File1.PostedFile.FileName;
39 fileName &＃61; filePath.Substring(filePath.LastIndexOf("\\") &＃43; 1);
40 //增加显示图片
41 mailBody.Append("content-id:" &＃43; fileName);
42 mailBody.Append("" &＃43; fileName&＃43;"&＃39; />");
43 attachment &＃61; new Attachment(filePath);
44 }
45
46
47 //Send Mail
48 mail.MailSend("minqiang.zhang&＃64;metinform.cn", "minqiang.zhang&＃64;metinform.cn",
49 "minqiang.zhang&＃64;metinform.cn", "演示如果在正文显示附件", mailBody.ToString(), attachment, "");
50
51 }
52 }
53
54
using System;2
using System.Data;3
using System.Configuration;4
using System.Web;5
using System.Web.Security;6
using System.Web.UI;7
using System.Web.UI.WebControls;8
using System.Web.UI.WebControls.WebParts;9
using System.Web.UI.HtmlControls;10
using System.Net.Mail;11
using STS.MailSystem.Common;12
using System.Text;13
14
public partial class _Default : System.Web.UI.Page15
{16
protected void Page_Load(object sender, EventArgs e)17
{18
19
}20
protected void Button1_Click(object sender, EventArgs e)21
{22
QMail mail &＃61; new QMail();23
24
Attachment attachment &＃61; null;25
//File Name26
string fileName &＃61; string.Empty;27
string filePath &＃61; string.Empty;28
StringBuilder mailBody &＃61; 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36
if (File1.Value !&＃61; "")37
{38
filePath &＃61; this.File1.PostedFile.FileName;39
fileName &＃61; filePath.Substring(filePath.LastIndexOf("\\") &＃43; 1);40
//增加显示图片41
mailBody.Append("content-id:" &＃43; fileName);42
mailBody.Append("43
attachment &＃61; new Attachment(filePath); 44
}45
46
47
//Send Mail48
mail.MailSend("minqiang.zhang&＃64;metinform.cn", "minqiang.zhang&＃64;metinform.cn",49
"minqiang.zhang&＃64;metinform.cn", "演示如果在正文显示附件", mailBody.ToString(), attachment, "");50
51
}52
}53
54
写完之后,点击发送,我靠!真的可以也.
代码其实很简单我们来总结一下:
这里最重要的东西是在正文中如何使用Img显示附件中的图片,从代码中我们可以看到content-id:附件中图片名字的方案解决的.
以上是自己方法,如果谁有更好的方法请贴出来,大家共享!
声明:由于代码是简单测试是否可以在附件中显示附件,所以代码写的很乱.大家看思路就行了.
京公网安备 11010802041100号