SpringBoot整合JavaMail通过阿里云企业邮箱发送邮件的实现

JavaMail是Java开发中邮件处理的开源类库，支持常用协议如：SMTP、POP3、IMAP

一、SpringBoot整合

1、需要在pom文件中添加依赖spring-boot-starter-mail

 org.springframework.boot
 spring-boot-starter-mail

构建项目，加载相关jar包

2、在application.yml中配置邮件发送的相关信息

spring:
  mail:
   host: smtp.mxhichina.com   #阿里云发送服务器地址
   port: 25    #端口号
   username: XXX@XXXX.com    #发送人地址 
   password: ENC(Grg2n2TYzgJv9zpwufsf37ndTe+M1cYk)  #密码

3、编写邮件发送工具类MailUtil

MailUtil.java

@Component
public class MailUtil {
  @Autowired
  JavaMailSendermailSender;
  @Autowired
  MailPropertiesmailProperties;
  
  public void sendMail(MailBean mailBean) {
    SimpleMailMessage mimeMessage =new SimpleMailMessage();
    mimeMessage.setFrom(mailProperties.getUsername());
    mimeMessage.setTo(mailBean.getToAccount());
    mimeMessage.setSubject(mailBean.getSubject());
    mimeMessage.setText(mailBean.getContent());
    mailSender.send(mimeMessage);
  }

  
  public boolean sendMailAttachment(MailBean mailBean) {
 try {
  MimeMessage mimeMessage =mailSender.createMimeMessage();
      MimeMessageHelper helper =new MimeMessageHelper(mimeMessage, true);
      helper.setFrom(mailProperties.getUsername());
      helper.setTo(boMailBean.getToAccount());
      helper.setSubject(mailBean.getSubject());
      helper.setText(mailBean.getContent(), true);
      // 增加附件名称和附件
      helper.addAttachment(MimeUtility.encodeWord(boMailBean.getAttachmentFileName(), "utf-8", "B"), mailBean.getAttachmentFile());
      mailSender.send(mimeMessage);
  return true;
    }catch (MessagingException e) {
  e.printStackTrace();
  return false;
    }
}

MailBean.java

@Data
public class MailBean {

private Stringsubject;
  private String content;
  private String toAccount;
  private File attachmentFile;
  private String attachmentFileName;
}

4.发送

String email = "XXX@email.com";
String content="测试内容";
String subject = "测试主题";
MailBean mailBean =new MailBean ();
mailBean .setToAccount(email);
boMailBean.setSubject(subject );
boMailBean.setContent(content);
boolean resultSend =mailUtil.sendMailAttachment(boMailBean);

二、查看阿里云邮箱设置

支持SMTP/POP3/IMAP功能，轻松通过客户端软件（outlook、foxmail等）收发邮件。 详细设置 点此查看

三、SpringBoot中集成了jasypt在一定程度上保证密码的安全

1、添加依赖

  1.9


  com.github.ulisesbocchio
  jasypt-spring-boot-starter
  ${jasypt.version}

2、在application.yml中配置加密密钥

jasypt:
 encryptor:
 password: XXXXXXX

3、生成密码对应的密文

@RunWith(SpringRunner.class)
@SpringBootTest
public class EncryptTests {
 @Autowired
  StringEncryptor stringEncryptor;

  @Test
  public void encryptPwd() {
    String result = stringEncryptor.encrypt("XXXX");
    System.out.println(result);
  }
}

4、密文替换

在ENC()中添加对应密文

password: ENC(Grg2n2TYzgJv9zpwufsf37ndTe+M1cYk)  #密码

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