我想在我的邮件中添加多张图片
String text = VelocityEngineUtils.mergeTemplateIntoString(velocityEngine, "email-template.vm", module);
message.setText(text, true);
message.addInline("img001", new ClassPathResource("/myPath/image001.jpg"));
message.addInline("img002", new ClassPathResource("/myPath/image002.jpg"));
但我有一个 NullPointerException !
org.springframework.mail.MailPreparationException: Could not prepare mail; nested exception is java.lang.NullPointerException
at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:369) [spring-context-support-2.5.6.SEC01.jar:2.5.6.SEC01]
at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:346) [spring-context-support-2.5.6.SEC01.jar:2.5.6.SEC01]
当我只添加一张图片(addInline())时一切顺利,邮件已发送
有人有想法吗?谢谢
编辑:
我想出了如何发送包含多个图像的电子邮件
MimeMessagePreparator preparator = new MimeMessagePreparator() {
public void prepare(MimeMessage mimeMessage) throws Exception {
MimeMessageHelper message = new MimeMessageHelper(mimeMessage,MimeMessageHelper.MULTIPART_MODE_RELATED,"UTF-8");
message.setTo(TO);
message.setFrom(FROM);
MimeBodyPart part = new MimeBodyPart();
String body = VelocityEngineUtils.mergeTemplateIntoString(velocityEngine,"template.vm","UTF-8",module);
part.setContent(body,"text/html");
// Create a new part for the attached image and set the CID image identifier
MimeBodyPart imagePart = new MimeBodyPart();
FileDataSource fds = new FileDataSource("C:/path/image001.jpg");
imagePart.setDataHandler(new DataHandler(fds));
imagePart.setHeader("Content-ID", "resImg1");
MimeBodyPart imagePart2 = new MimeBodyPart();
FileDataSource fds2 = new FileDataSource("C:/image002.jpg");
imagePart2.setDataHandler(new DataHandler(fds2));
imagePart2.setHeader("Content-ID", "resImg2");
Multipart mp = new MimeMultipart();
mp.addBodyPart(part);
mp.addBodyPart(imagePart);
mp.addBodyPart(imagePart2);
// Set the message's content
mimeMessage.setContent(mp);
}
};
this.mailSender.send(preparator);
在 template.vm 中插入图片:<img width=172 height=40 src="cid:resImg1"alt="Image1"/>
我希望能帮助别人