springBoot 集成邮件功能

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分类专栏： # spring boot 杂记文章标签： spring boot

于 2019-09-02 19:09:34 首次发布

本文链接：https://blog.youkuaiyun.com/xhf852963/article/details/100300387

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本文详细介绍了如何在Spring Boot项目中配置并使用邮件发送功能，包括添加Maven依赖、配置application.properties、编写邮件发送服务类代码，以及如何在QQ邮箱中开启SMTP服务。通过实例演示了纯文本邮件、HTML邮件、带附件邮件和内嵌资源邮件的发送过程。

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一、编写代码

1.1 添加 maven 依赖

    <!-- 添加发送邮件依赖 -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-mail</artifactId>
    </dependency>

1.2 修改 application.properties

# mail server address
# QQ smtp.qq.com
# sina smtp.sina.cn
# aliyun smtp.aliyun.com
# 163 smtp.163.com
# 邮箱的中心服务器的地址
spring.mail.host=smtp.qq.com

# 邮箱的用户名
spring.mail.username=1982392926@qq.com

# mail qq邮箱的授权码
spring.mail.password=ofpzivescrfldceh
spring.mail.default-encoding=UTF-8

# 邮件发送的地址
mail.fromMail.sender=1982392926@qq.com

# 邮件接收的地址
mail.fromMail.receiver=2316949230@qq.com

1.3 编写服务类代码

@RestController
public class MailController {

    private final Logger logger = LoggerFactory.getLogger(this.getClass());
	
    @Value("${mail.fromMail.sender}")
    private String sender;

    @Value("${mail.fromMail.receiver}")
    private String receiver;

    @Autowired
    private JavaMailSender javaMailSender;
    
    @RequestMapping("/sendMail")
    public String sendMail() {
        SimpleMailMessage message = new SimpleMailMessage();
        message.setFrom(sender);
        message.setTo(receiver);
        message.setSubject("相亲申请");
        message.setText("你好，小伙子吃槟榔啊！");
        try {
            javaMailSender.send(message);
            logger.info("简单邮件已经发送。");
        } catch (Exception e) {
            logger.error("发送简单邮件时发生异常！", e);
        }
        return "success";
    }
    
    @RequestMapping("/sendHtmlMail")
    public String testHtmlMail() {
        String content="<html>\n" +
                "<body>\n" +
                "    <h3>hello world ! 这是一封Html邮件!</h3>\n" +
                "</body>\n" +
                "</html>";
        MimeMessage message = javaMailSender.createMimeMessage();
        try {
            //true表示需要创建一个multipart message
            MimeMessageHelper helper = new MimeMessageHelper(message, true);
            helper.setFrom(sender);
            helper.setTo(receiver);
            helper.setSubject("html mail");
            helper.setText(content, true);

            javaMailSender.send(message);
            logger.info("html邮件发送成功");
        } catch (MessagingException e) {
            logger.error("发送html邮件时发生异常！", e);
        }
        return "success";
    }
    
    @RequestMapping("/sendFilesMail")
    public String sendFilesMail() {
        String filePath="/file/db.sql";
        MimeMessage message = javaMailSender.createMimeMessage();

        try {
            MimeMessageHelper helper = new MimeMessageHelper(message, true);
            helper.setFrom(sender);
            helper.setTo(receiver);
            helper.setSubject("附件邮件");
            helper.setText("这是一封带附件的邮件", true);

            FileSystemResource file = new FileSystemResource(new File(filePath));
            String fileName = filePath.substring(filePath.lastIndexOf(File.separator));
            helper.addAttachment(fileName, file);

            javaMailSender.send(message);
            logger.info("带附件的邮件已经发送。");
        } catch (MessagingException e) {
            logger.error("发送带附件的邮件时发生异常！", e);
        }
        return "success";
    }
    
    @RequestMapping("/sendInlineResourceMail")
    public String sendInlineResourceMail() {
        String Id = "dalaoyang12138";
        String content="<html><body>这是有图片的邮件：<img src=\'cid:" + Id + "\' ></body></html>";
        String imgPath = "/Users/dalaoyang/Downloads/dalaoyang.jpeg";
        MimeMessage message = javaMailSender.createMimeMessage();

        try {
            MimeMessageHelper helper = new MimeMessageHelper(message, true);
            helper.setFrom(sender);
            helper.setTo(receiver);
            helper.setSubject("这是有图片的邮件");
            helper.setText(content, true);

            FileSystemResource res = new FileSystemResource(new File(imgPath));
            helper.addInline(Id, res);

            javaMailSender.send(message);
            logger.info("嵌入静态资源的邮件已经发送。");
        } catch (MessagingException e) {
            logger.error("发送嵌入静态资源的邮件时发生异常！", e);
        }
        return "success";
    }
}