Exchange Web 服务 - 发送带附件的电子邮件

问题描述 投票：0回答：3

我刚开始使用 EWS（Exchange Web 服务），我正在寻找一个简单的示例来演示如何发送带有附件的电子邮件。我搜索了一个例子，但找不到任何简单明了的例子。我找到了有关如何发送电子邮件但不发送带附件的电子邮件的示例。

有人有他们推荐的示例的链接吗？在这里发布一个示例也同样有效！

exchange-server exchangewebservices
3个回答
9
投票

嗯，我最终明白了这一点。以下方法将创建邮件消息，将其存储为草稿，添加附件，然后发送电子邮件。希望这对那些像我一样无法找到好例子的人有所帮助。

在我的示例中，我只会发送 Excel 文件，这就是内容类型设置为这样的原因。显然，可以更改它以支持任何类型的文件附件。

供您参考，变量 esb 是 ExchangeServiceBinding 类型的类级别变量。

编辑

我还应该注意，在这个示例中，我没有检查交换操作的响应类型是否成功。如果您想知道对 EWS 的调用是否确实有效，那么绝对应该检查一下。

public void SendEmail(string from, string to, string subject, string body, byte[] attachmentAsBytes, string attachmentName)
        {
            //Create an email message and initialize it with the from address, to address, subject and the body of the email.
            MessageType email = new MessageType();

            email.ToRecipients = new EmailAddressType[1];
            email.ToRecipients[0] = new EmailAddressType();
            email.ToRecipients[0].EmailAddress = to;

            email.From = new SingleRecipientType();
            email.From.Item = new EmailAddressType();
            email.From.Item.EmailAddress = from;

            email.Subject = subject;

            email.Body = new BodyType();
            email.Body.BodyType1 = BodyTypeType.Text;
            email.Body.Value = body;

            //Save the created email to the drafts folder so that we can attach a file to it.
            CreateItemType emailToSave = new CreateItemType();
            emailToSave.Items = new NonEmptyArrayOfAllItemsType();
            emailToSave.Items.Items = new ItemType[1];
            emailToSave.Items.Items[0] = email;
            emailToSave.MessageDisposition = MessageDispositionType.SaveOnly;
            emailToSave.MessageDispositionSpecified = true;

            CreateItemResponseType response = esb.CreateItem(emailToSave);
            ResponseMessageType[] rmta = response.ResponseMessages.Items;
            ItemInfoResponseMessageType emailResponseMessage = (ItemInfoResponseMessageType)rmta[0];

            //Create the file attachment.
            FileAttachmentType fileAttachment = new FileAttachmentType();
            fileAttachment.Content = attachmentAsBytes;
            fileAttachment.Name = attachmentName;
            fileAttachment.ContentType = "application/ms-excel";

            CreateAttachmentType attachmentRequest = new CreateAttachmentType();
            attachmentRequest.Attachments = new AttachmentType[1];
            attachmentRequest.Attachments[0] = fileAttachment;
            attachmentRequest.ParentItemId = emailResponseMessage.Items.Items[0].ItemId;

            //Attach the file to the message.
            CreateAttachmentResponseType attachmentResponse = (CreateAttachmentResponseType)esb.CreateAttachment(attachmentRequest);
            AttachmentInfoResponseMessageType attachmentResponseMessage = (AttachmentInfoResponseMessageType)attachmentResponse.ResponseMessages.Items[0];

            //Create a new item id type using the change key and item id of the email message so that we know what email to send.
            ItemIdType attachmentItemId = new ItemIdType();
            attachmentItemId.ChangeKey = attachmentResponseMessage.Attachments[0].AttachmentId.RootItemChangeKey;
            attachmentItemId.Id = attachmentResponseMessage.Attachments[0].AttachmentId.RootItemId;

            //Send the email.
            SendItemType si = new SendItemType();
            si.ItemIds = new BaseItemIdType[1];
            si.SavedItemFolderId = new TargetFolderIdType();
            si.ItemIds[0] = attachmentItemId;
            DistinguishedFolderIdType siSentItemsFolder = new DistinguishedFolderIdType();
            siSentItemsFolder.Id = DistinguishedFolderIdNameType.sentitems;
            si.SavedItemFolderId.Item = siSentItemsFolder;
            si.SaveItemToFolder = true;

            SendItemResponseType siSendItemResponse = esb.SendItem(si);
        }
4
投票

我知道这个问题很老了，但我在搜索谷歌后来到这里。这是使用 using 语句的更新的简化工作答案。

您需要将nuget包Microsoft.Exchange.WebServices添加到您的项目中（当前版本是2.2.0）。

using Microsoft.Exchange.WebServices.Data;

namespace Exchange
{
    public static class Emailer
    {
        public static void SendEmail(string from, string to, string subject, string body, byte[] attachmentBytes, string attachmentName)
        {
            var service = new ExchangeService(ExchangeVersion.Exchange2007_SP1);
            service.AutodiscoverUrl(from);
            var message = new EmailMessage(service)
            {
                Subject = subject,
                Body = body,
            };
            message.ToRecipients.Add(to);
            message.Attachments.AddFileAttachment(attachmentName, attachmentBytes);
            message.SendAndSaveCopy();
        }
    }
}

对 service.AutodiscoverUrl 的调用可能需要很多秒 - 如果您知道 url，那么您可以避免调用 AutodiscoverUrl 并直接设置它。 （您可以通过调用 AutodiscoverUrl 然后打印 service.Url 来恢复它。）

// service.AutodiscoverUrl(from); // This can be slow
service.Url = new System.Uri("https://outlook.domain.com/ews/exchange.asmx");
0
投票

当尝试使用 SOAP Web 服务通过 EWS 发送带有文件附件的电子邮件时，我遇到了同样的问题。终于找到解决方案了。

1）创建消息并获取消息ID。

    <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:t="http://schemas.microsoft.com/exchange/services/2006/types">

  <soap:Body>
    <CreateItem MessageDisposition="SaveOnly"
    xmlns="http://schemas.microsoft.com/exchange/services/2006/messages">

      <SavedItemFolderId>
        <t:DistinguishedFolderId Id="drafts" />
      </SavedItemFolderId>
      <Items>
        <t:Message>
          <t:ItemClass>IPM.Note</t:ItemClass>
          <t:Subject>test 2</t:Subject>
          <t:Body BodyType="HTML">this is
          &lt;b&gt;bold&lt;/b&gt;</t:Body>
          <t:ToRecipients>
            <t:Mailbox>
              <t:EmailAddress>[email protected]</t:EmailAddress>
            </t:Mailbox>
          </t:ToRecipients>
          <t:IsRead>false</t:IsRead>
        </t:Message>
      </Items>
    </CreateItem>
  </soap:Body>
</soap:Envelope>

得到回应：

    <?xml version="1.0" encoding="utf-8"?>
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
    <s:Header>
        <h:ServerVersionInfo MajorVersion="15" MinorVersion="0" MajorBuildNumber="1497" MinorBuildNumber="46" xmlns:h="http://schemas.microsoft.com/exchange/services/2006/types" xmlns="http://schemas.microsoft.com/exchange/services/2006/types" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/>
    </s:Header>
    <s:Body xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
        <m:CreateItemResponse xmlns:m="http://schemas.microsoft.com/exchange/services/2006/messages" xmlns:t="http://schemas.microsoft.com/exchange/services/2006/types">
            <m:ResponseMessages>
                <m:CreateItemResponseMessage ResponseClass="Success">
                    <m:ResponseCode>NoError</m:ResponseCode>
                    <m:Items>
                        <t:Message>
                            <t:ItemId Id="AAAYAE5pa29sYXkuR3VyeWFub3ZAYXphbC5hegBGAAAAAAAM4X07f1m5TruMA1KYuHzKBwCYiVmSeaoqQ5DPKXS6XYPUAAAAv1MsAACiYL/sCHf3TKGIeSfzqioDAAbhmG/mAAA=" ChangeKey="CQAAABYAAACiYL/sCHf3TKGIeSfzqioDAAbiJMe3"/>
                        </t:Message>
                    </m:Items>
                </m:CreateItemResponseMessage>
            </m:ResponseMessages>
        </m:CreateItemResponse>
    </s:Body>
</s:Envelope>

2）创建文件附件。在此之前，请将文件转换为二进制代码并使用 Base64 方法对其进行加密。然后将文件的哈希值放入标签“Content”，如下例所示：

    <?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:t="http://schemas.microsoft.com/exchange/services/2006/types">

  <soap:Body>
    <CreateAttachment xmlns="http://schemas.microsoft.com/exchange/services/2006/messages"
    xmlns:t="http://schemas.microsoft.com/exchange/services/2006/types">

      <ParentItemId Id="AAAYAE5pa29sYXkuR3VyeWFub3ZAYXphbC5hegBGAAAAAAAM4X07f1m5TruMA1KYuHzKBwCYiVmSeaoqQ5DPKXS6XYPUAAAAv1MsAACiYL/sCHf3TKGIeSfzqioDAAbhmG/mAAA=" />
      <Attachments>
        <t:FileAttachment>
          <t:Name>kassa.ini</t:Name>
          <t:Content>
          W0dlbmVyYWxdDQpzaG9wbm89OTkNCg0KDQpkYXRhc2hvcD1jOlxkcmVhbVxkYXRhc2hvcCAyLjAuYWNjZGINCmRhdGFISz1jOlxkcmVhbVxkYXRhSEsubWRiDQoNCnJlbSB2b29ycmFhZCB3YWFyc2NodXdpbmcNCnZvb3JyYWFkd2FhcnNjaHV3aW5nPS0xDQoNCnJlbSBwaW5uZW4NCkhlZWZ0UE9JUD0wDQpYVElMTkVYVD0tMQ0KDQpyZW0gbW9uc3RlciBrYXNzYQ0KSXNtb25zdGVyPTANCg0KcmVtIGF1dG9pbnZvZXIga25vcA0KYXV0b2ludm9lcj0tMQ0KDQpyZW0gdG91Y2hzY3JlZW4NCnRvdWNoc2NyZWVuPTANCg0KDQpbcGluXQ0KZGVmYXVsdHBpbj0wNQ0KcGluMDU9UkVOVDAxDQpwaW4wMz1HU00wMQ0KDQpbZXJyb3JdDQo=</t:Content>
        </t:FileAttachment>
      </Attachments>
    </CreateAttachment>
  </soap:Body>
</soap:Envelope>

得到回复：

<?xml version="1.0" encoding="utf-8"?>
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
    <s:Header>
        <h:ServerVersionInfo MajorVersion="15" MinorVersion="0" MajorBuildNumber="1497" MinorBuildNumber="46" xmlns:h="http://schemas.microsoft.com/exchange/services/2006/types" xmlns="http://schemas.microsoft.com/exchange/services/2006/types" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/>
    </s:Header>
    <s:Body xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
        <m:CreateAttachmentResponse xmlns:m="http://schemas.microsoft.com/exchange/services/2006/messages" xmlns:t="http://schemas.microsoft.com/exchange/services/2006/types">
            <m:ResponseMessages>
                <m:CreateAttachmentResponseMessage ResponseClass="Success">
                    <m:ResponseCode>NoError</m:ResponseCode>
                    <m:Attachments>
                        <t:FileAttachment>
                            <t:AttachmentId Id="AAAYAE5pa29sYXkuR3VyeWFub3ZAYXphbC5hegBGAAAAAAAM4X07f1m5TruMA1KYuHzKBwCYiVmSeaoqQ5DPKXS6XYPUAAAAv1MsAACiYL/sCHf3TKGIeSfzqioDAAbhmG/mAAABEgAQAPuV+vqkAj1FltQh+hc7myw=" RootItemId="AAAYAE5pa29sYXkuR3VyeWFub3ZAYXphbC5hegBGAAAAAAAM4X07f1m5TruMA1KYuHzKBwCYiVmSeaoqQ5DPKXS6XYPUAAAAv1MsAACiYL/sCHf3TKGIeSfzqioDAAbhmG/mAAA=" RootItemChangeKey="CQAAABYAAACiYL/sCHf3TKGIeSfzqioDAAbiJMe5"/>
                        </t:FileAttachment>
                    </m:Attachments>
                </m:CreateAttachmentResponseMessage>
            </m:ResponseMessages>
        </m:CreateAttachmentResponse>
    </s:Body>
</s:Envelope>

3）现在您可以使用以下请求发送电子邮件。确保在请求中输入正确的 ID 和“更改密钥”值。当收到上述请求的响应时，您会得到这些值。

<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:t="http://schemas.microsoft.com/exchange/services/2006/types">

  <soap:Body>
    <SendItem xmlns="http://schemas.microsoft.com/exchange/services/2006/messages"
    SaveItemToFolder="true">
      <ItemIds>
        <t:ItemId Id="AAAYAE5pa29sYXkuR3VyeWFub3ZAYXphbC5hegBGAAAAAAAM4X07f1m5TruMA1KYuHzKBwCYiVmSeaoqQ5DPKXS6XYPUAAAAv1MsAACiYL/sCHf3TKGIeSfzqioDAAbhmG/mAAA="
        ChangeKey="CQAAABYAAACiYL/sCHf3TKGIeSfzqioDAAbiJMe5" />
      </ItemIds>
    </SendItem>
  </soap:Body>
</soap:Envelope>

回复：

 <?xml version="1.0" encoding="utf-8"?>
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
    <s:Header>
        <h:ServerVersionInfo MajorVersion="15" MinorVersion="0" MajorBuildNumber="1497" MinorBuildNumber="46" xmlns:h="http://schemas.microsoft.com/exchange/services/2006/types" xmlns="http://schemas.microsoft.com/exchange/services/2006/types" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/>
    </s:Header>
    <s:Body xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
        <m:SendItemResponse xmlns:m="http://schemas.microsoft.com/exchange/services/2006/messages" xmlns:t="http://schemas.microsoft.com/exchange/services/2006/types">
            <m:ResponseMessages>
                <m:SendItemResponseMessage ResponseClass="Success">
                    <m:ResponseCode>NoError</m:ResponseCode>
                </m:SendItemResponseMessage>
            </m:ResponseMessages>
        </m:SendItemResponse>
    </s:Body>
</s:Envelope>

现在一切都完成了。带有文件附件的电子邮件已成功发送。

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