将图像嵌入来自vb.net的电子邮件正文中

问题描述

我已经对此进行了严格的搜索，但无法使其正常工作。我正在尝试从vb.net应用程序中发送电子邮件，该应用程序中的图像嵌入在电子邮件正文中。我可以将其作为附件使用，但是在Outlook和其他电子邮件客户端中，该图像没有显示。该图像存储在本地，我想知道是否与此有关。我尝试先将图片添加到字符串中，但这没有用；

I have rigorously searched for a soln on this but cannot get this to work. I am trying to send an email from within a vb.net application where an image is embedded in the body of the email. I get it to work as an attachment but in outlook and other email clients, the image does not show. The image is stored locally and I wonder if that has anything to do with it. I tried adding the image within a string first and that did not work;

    emailString.AppendLine()
    emailString.AppendLine()
    emailString.AppendLine("<br />")
    emailString.AppendLine("<br />")
    emailString.AppendLine("<img src =""cid:C:\Users\Public\Pictures\Sample Pictures\br1.gif"" alt='STUPID IMAGE'>")

然后尝试使用linkedresource

then tried a different way with linkedresource

  Sub SendEmail(ByVal errorMessage As String)
    Dim mail As New MailMessage()
    mail.From = New MailAddress("[email protected]", "**DAILY STATS**")
    mail.Subject = "STATS ALERT"
    mail.To.Add("[email protected]")
    mail.IsBodyHtml = True
    'mail.Body = "TEST EMAIL" 'errorMessage
    'mail.BodyEncoding = Encoding.UTF8
    smptpServer.Timeout = 30000
    smptpServer.Credentials = New NetworkCredential("me", "person")
    Dim imageBody As String = " <img src =""cid:C:\Users\Public\Pictures\Sample Pictures\br1.gif"">"
    Dim htmlView As System.Net.Mail.AlternateView = System.Net.Mail.AlternateView.CreateAlternateViewFromString(errorMessage, Nothing, "text/html")
    Dim plainTextView As System.Net.Mail.AlternateView = System.Net.Mail.AlternateView.CreateAlternateViewFromString(errorMessage, Nothing, "text/plain")
    Dim imageResource As New System.Net.Mail.LinkedResource("C:\Users\Public\Pictures\Sample Pictures\br1.gif", MediaTypeNames.Image.Gif)
    Dim attachment As System.Net.Mail.Attachment
    attachment = New System.Net.Mail.Attachment("C:\Users\Public\Pictures\Sample Pictures\br1.gif")
    mail.Attachments.Add(attachment)


   'imageResource.ContentId = "HDIImage"
    htmlView.LinkedResources.Add(imageResource)
    htmlView.TransferEncoding = Net.Mime.TransferEncoding.Base64
    htmlView.ContentType = New System.Net.Mime.ContentType("text/html")
   'mail.AlternateViews.Add(plainTextView)
    mail.AlternateViews.Add(htmlView)
    Try
        smptpServer.Send(mail)




    Catch ex As Exception
        If ex.Message.Contains("Timeout") Then
           Exit Sub
        End If
    End Try

我什至将图像类型从png更改为gif。普通的手动创建的html表在将其附加到字符串时起作用，但是上述方法不起作用。

I even changed the image type from png to gif. The normal manually created html tables work when appending it to the string but this above way does not work.

仅出现以下情况：

推荐答案

在我看来，如果您的图像如果附加到电子邮件，则您的 src 属性应为 cid：imagename.png，不带磁盘路径。看看以下内容：

It seems to me that if your image goes attached to the email, your src attribute should be "cid:imagename.png", without a disk path. Take a look at this: embedding image in html email

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