在scala中发送带有多个附件的电子邮件

import java.util.Properties
import javax.mail.{Authenticator, Message, PasswordAuthentication, Session}
import javax.mail.internet.{InternetAddress, MimeBodyPart, MimeMessage, MimeMultipart}
import javax.activation.{DataHandler, FileDataSource}

object EmailSender {
  def sendEmailWithAttachments(to: String, subject: String, body: String, attachments: List[String]): Unit = {
    val properties = new Properties()
    properties.put("mail.smtp.host", "smtp.example.com") // 设置SMTP服务器地址
    properties.put("mail.smtp.port", "587") // 设置SMTP服务器端口
    properties.put("mail.smtp.auth", "true") // 启用SMTP身份验证
    properties.put("mail.smtp.starttls.enable", "true") // 启用TLS加密

    val authenticator = new Authenticator() {
      override def getPasswordAuthentication: PasswordAuthentication = {
        new PasswordAuthentication("your_email@example.com", "your_password") // 设置发件人邮箱和密码
      }
    }

    val session = Session.getInstance(properties, authenticator)

    val message = new MimeMessage(session)
    message.setFrom(new InternetAddress("your_email@example.com")) // 设置发件人邮箱
    message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(to)) // 设置收件人邮箱
    message.setSubject(subject) // 设置邮件主题

    val multipart = new MimeMultipart()

    val textPart = new MimeBodyPart()
    textPart.setText(body) // 设置邮件正文
    multipart.addBodyPart(textPart)

    attachments.foreach { attachment =>
      val filePart = new MimeBodyPart()
      val fileDataSource = new FileDataSource(attachment)
      filePart.setDataHandler(new DataHandler(fileDataSource))
      filePart.setFileName(fileDataSource.getName)
      multipart.addBodyPart(filePart)
    }

    message.setContent(multipart)

    val transport = session.getTransport("smtp")
    transport.connect()
    transport.sendMessage(message, message.getAllRecipients)
    transport.close()
  }
}

// 使用示例
val to = "recipient@example.com"
val subject = "邮件主题"
val body = "邮件正文"
val attachments = List("/path/to/attachment1.pdf", "/path/to/attachment2.jpg")

EmailSender.sendEmailWithAttachments(to, subject, body, attachments)