Question

我正在使用EWS从Exchange 2013提供的电子邮件中读取和提取图像。使用下面的代码，当图像作为实际附件附加时效果很好。当图像作为内联附件出现时出现问题。

EWS .Hasattachments并不适用于内联附件..这似乎很愚蠢，这是没有想到的..阅读下面的文章似乎有一个解决但我只是想知道什么是最好的，最有效的检索常规＆amp;的方法内联图像附件并将其保存到目录中。

https://social.technet.microsoft.com/Forums/office/en-US/ad10283a-ea04-4b15-b20a-40cbd9c95b57/exchange-2010-ews-c-display-html-email-problem-with-image?forum=exchangesvrdevelopment

  if (mail.HasAttachments && mail.Attachments[0] is FileAttachment)
                        {
                            int count = 0;
                            foreach (Attachment attachment in mail.Attachments)
                            {
                                if (attachment is FileAttachment && attachment.ContentType == "image/jpeg")
                                {
                                    Console.WriteLine(attachment.Name);
                                    FileAttachment fileAttachment = attachment as FileAttachment;
                                    string imagename = s + "-" + System.DateTime.Now.ToString("yyyyMMddHHmmssffff") + ".jpg";

                                    /* download attachment to folder */
                                    fileAttachment.Load(imageLocation + "\\Images\\" + imagename);

}

Answer 1

看起来你在第一行中从this MSDN article获得了一些灵感。您不需要检查HasAttachments，只需遍历mail.Attachments自己。

foreach (var attachment in mail.Attachments.Where(a => a is FileAttachment && a.ContentType == "image/jpeg"))
{
    Console.WriteLine(attachment.Name);
    FileAttachment fileAttachment = attachment as FileAttachment;
    string imagename = s + "-" + System.DateTime.Now.ToString("yyyyMMddHHmmssffff") + ".jpg";

    /* download attachment to folder */
    fileAttachment.Load(imageLocation + "\\Images\\" + imagename);
}

我没有对上述内容进行测试，但只能对任何jpeg FileAttachment

进行操作

使用EWS提取内嵌图像

1 个答案: