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我想发送带有附加图像的邮件并将此图像嵌入到 html 中。作为标签的来源，我应该写什么，是否缺少诸如 content_type 之类的标题部分？

当我进行真正的测试时，我会向我的 gmail 帐户发送邮件。我可以看到有一个名为“未命名”的附件，即使我下载也无法显示图像。

宝石：小马

require 'pony'
Pony.override_options = { :via => :test }
Pony.mail(
    :to => 'foo@bar',
    :from => 'abc@abc.com',
    :subject => 'test123',
    :body =>   "<h1><strong>Dear X, check the newsletter ,<br></strong></h1> <img src='attached image' />",
    :attachments => {"happy_image.jpg" => File.read("happy_image.jpg")}
)
puts Mail::TestMailer.deliveries

输出：

Date: Tue, 06 Dec 2016 17:23:05 +0300

From: abc@abc.com

To: foo@bar

Message-ID: <5846c9ca183d6_5983c9fd899060@MW7BIQ12TKYHQC.mail>

Subject: test123

Mime-Version: 1.0

Content-Type: multipart/mixed;

boundary="--==_mimepart_5846c9caf15a_5983c9fd8989e5";

charset=UTF-8

Content-Transfer-Encoding: 7bit





----==_mimepart_5846c9caf15a_5983c9fd8989e5

Content-Type: text/plain;

charset=UTF-8

Content-Transfer-Encoding: 7bit



<h1><strong>Dear X, check the newsletter ,<br></strong></h1> <img src='' />

----==_mimepart_5846c9caf15a_5983c9fd8989e5

Content-Type: image/jpeg;

 filename=happy_image.jpg

Content-Transfer-Encoding: base64

Content-Disposition: attachment;

filename=happy_image.jpg

Content-ID: <happy_image.jpg@MW7BIQ12TKYHQC>



/9j/4AAQSkZJRgABAQEAYABgAAD/2wBDAAMCAgMCAgMDAwMEAwMEBQgFBQQE

BQoHBwYIDAoMDAsKCwsNDhIQDQ4RDgsLEBYQERMUFRUVDA8XGBYUGBIUFRT/

2wBDAQMEBAUEBQkFBQkUDQsNFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQU

FBQUFBQUFBQUFBQUFBQUFBQUFBQUFBT/wAARCAHiAuMDASIAAhEBAxEB/8QA

HwAAAQUBAQEBAQEAAAAAAAAAAAECAwQFBgcICQoL/8QAtRAAAgEDAwIEAwUF

BAQAAAF9AQIDAAQRBRIhMUEGE1FhByJxFDKBkaEII0KxwRVS0fAkM2JyggkK

FhcYGQ==



----==_mimepart_5846c9caf15a_5983c9fd8989e5--
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1 回答 1

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您应该能够对图像进行 BASE64 编码，并将生成的字符串用作src标签img。

例如：

<img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAWQAAAD8CAYAAAB..."/>

还要确保您的内容类型设置为text/html而不是text/plain. 查看邮件，似乎它设置为后者，因此为什么图像不呈现而标签呈现为文本。将以下内容添加到您的参数中以使用text/html内容类型：

:headers => { 'Content-Type' => 'text/html' }

于 2016-12-06T16:19:36.323 回答