r - mailR:如何将rmarkdown文档作为正文发送到电子邮件中？

如何使用R将rmarkdown生成的文档作为正文作为电子邮件发送？

我已经成功地用knitr尝试了mailR，但是当用（新）rmarkdown -package生成html-report时，它失败了。

library(mailR)
send.mail(
  from = "[email protected]",
  to = "[email protected]",
  subject = "MyMail",
  html = T,
  inline = T,
  body = "my_report.html",
  smtp = list(host.name = "smtp.gmail.com", port = 465,
    user.name = "USERNAME", passed = "PASSWORD", ssl = T),
  authenticate = T,
  send = T
)

错误：

org.apache.commons.mail.EmailException: Building the MimeMessage failed
    at org.apache.commons.mail.ImageHtmlEmail.buildMimeMessage(ImageHtmlEmail.java:110)
    at org.apache.commons.mail.Email.send(Email.java:1436)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at RJavaTools.invokeMethod(RJavaTools.java:386)
Caused by: java.io.IOException: Cant resolve the following file resource :/Users/USERNAME/myfolder/./data:image/png;base64,iVBORw0KGg …

(…)

… SuQmCC
    at org.apache.commons.mail.resolver.DataSourceFileResolver.resolve(DataSourceFileResolver.java:105)
    at org.apache.commons.mail.resolver.DataSourceFileResolver.resolve(DataSourceFileResolver.java:79)
    at org.apache.commons.mail.ImageHtmlEmail.replacePattern(ImageHtmlEmail.java:149)
    at org.apache.commons.mail.ImageHtmlEmail.buildMimeMessage(ImageHtmlEmail.java:103)
    ... 6 more
Error: EmailException (Java): Building the MimeMessage failed

我想这与以下行有关：无法解析以下文件资源：/ Users / USERNAME / myfolder /./ data：image / png; base64？

我非常感谢您提供任何指导。

最佳答案

mailR当前不支持解析使用数据URI方案（http://en.wikipedia.org/wiki/Data_URI_scheme）编码的嵌入式图像。

目前，我建议采用以下解决方案来解决您的问题。将来，我将研究使mailr本身支持它。

首先，从R终端创建HTML文件（这里重要的是，选项不包括“ base64_images” ---参见?markdown::markdownHTMLOptions）：

library(knitr)
knit2html("my_report.Rmd",options="")

现在，您可以通过mailR发送结果HTML文件：

send.mail(from = "[email protected]",
          to = "[email protected]",
          subject = "MyMail",
          html = T,
          inline = T,
          body = "my_report.html",
          smtp = list(host.name = "smtp.gmail.com", port = 465, user.name = "USERNAME", passwd = "PASSWORD", ssl = T),
          authenticate = T,
          send = T)