在Spring Boot中发送带有附件的电子邮件

时间:2018-10-24 14:05:51

标签: java spring email spring-boot

我正在尝试在Spring Boot中发送带有文件附件的电子邮件。

这是基本的gmail SMTP服务器应用程序属性配置:

这是我的EmailService:

EmailService

当我通过传递mailMessageDto对象调用此方法时,没有引发异常。没有任何反应,没有发送电子邮件。

我已经在javaMailSender.send(messsage)代码行上调试了,一切似乎都很好。

更新

spring.mail.properties.mail.smtp.ssl.enable=false

应该为假,不是真的spring.mail.properties.mail.smtp.socketFactory.class = javax.net.ssl.SSLSocketFactory

2 个答案:

答案 0 :(得分:1)

步骤1.在porm.xml中添加依赖项

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-mail</artifactId>
</dependency>

第2步。在application.properties中添加配置代码

spring.mail.host=smtp.gmail.com
spring.mail.port=465
spring.mail.username=username
spring.mail.password=password
spring.mail.protocol=smtps
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.connectiontimeout=5000
spring.mail.properties.mail.smtp.timeout=5000
spring.mail.properties.mail.smtp.writetimeout=5000
spring.mail.properties.mail.smtp.starttls.enable=true

步骤3.在控制器中添加代码 masterconroller.java

@GetMapping("/sendmail")
@ResponseBody
String home() {
    try {
        masterServiceImpl.sendEmail("path");
        return "Email Sent!";
    } catch (Exception ex) {
        return "Error in sending email: " + ex;
    }
}

步骤4.在MasterServiceImpl.java中添加代码

@Autowired
private JavaMailSender javaMailSender;
public void sendEmail(String path) throws Exception{
         MimeMessage message = javaMailSender.createMimeMessage();
         MimeMessageHelper helper = new MimeMessageHelper(message, true);
         helper.setTo("xyz@gmail.com");
         helper.setText("<html><body><h1>hello Welcome!</h1><body></html>", true);
         FileSystemResource file  = new FileSystemResource(new File(path));
         helper.addAttachment("testfile", file);
         helper.addAttachment("test.png", new ClassPathResource("test.jpeg"));
         helper.setSubject("Hi");
         javaMailSender.send(message);
   }

答案 1 :(得分:0)

我建议您通过提取添加附件的功能来将SRP应用于sendMessageWithAttachment()方法:

private void addAttachments(MailMessageDto message, MimeMessageHelper helper) {
  message.getFiles().forEach(file -> addAttachment(file, helper));
}

此方法streams用于所有文件,并使用addAttachment()添加每个文件:

private void addAttachment(File file, MimeMessageHelper helper) {
  String fileName = file.getName();
  try {
    helper.addAttachment(fileName, file);
    log.debug("Added a file atachment: {}", fileName);
  } catch (MessagingException ex) {
    log.error("Failed to add a file atachment: {}", fileName, ex);
  }
}

这将为每个失败的附件记录一个错误。您可以尝试这种方法吗?