email邮件服务

email邮箱服务创建步骤

引入

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

application.yml qq邮箱配置

spring:
  mail:
    host: smtp.exmail.qq.com
    password: QLWG5W9nBmcGAENb # 授权码
    username: yuanfeng@qq.com
    sendTo: zhangyuanfeng@bitren.onaliyun.com

邮箱服务接口

public interface IEmailService {
    void sendSimpleEmailToAppoint(String subject, String content);
    void sendAttachmentsMailToAppoint(String subject, String content, String filePath);
    void sendInlineResourceMailToAppoint(String subject, String content, String rscPath, String rscId);
    void sendHtmlMailToAppoint(String subject, String content);
    void sendThymeleafEmailToAppoint(String subject, String content);
}

邮箱服务实现

/**
 * 邮件服务
 *
 * @author yuanfeng.z
 * @date 2019/11/15 17:15
 */
@Slf4j
@Service
public class EmailServiceImpl implements IEmailService {
    @Value(value = "${spring.mail.username}")
    private String sendFrom;

    @Value(value = "${spring.mail.sendTo}")
    private List<String> sendToList;

    @Autowired
    private JavaMailSender javaMailSender;

    @Autowired
    private TemplateEngine templateEngine;

    /**
     * 发送文本邮件到指定邮箱
     *
     * @param subject
     * @param content
     */
    @Override
    public void sendSimpleEmailToAppoint(String subject, String content) {
        // 构造Email消息
        for (String sendTo : sendToList) {
            SimpleMailMessage message = new SimpleMailMessage();
            message.setFrom(sendFrom);
            message.setTo(sendTo);
            message.setSubject(subject);
            message.setText(content);

            try {
                javaMailSender.send(message);
            } catch (Exception e) {
                log.error("{} send message to {} fail, subject => {}", sendFrom, sendTo, subject);
                return;
            }
            log.info("{} send message to {} success, subject => {}", sendFrom, sendTo, subject);
        }
    }

    /**
     * 发送文本和附件邮件到指定邮箱
     *
     * @param subject
     * @param content
     * @param filePath 文件路径
     */
    @Override
    public void sendAttachmentsMailToAppoint(String subject, String content, String filePath) {
        MimeMessage message = javaMailSender.createMimeMessage();

        for (String sendTo : sendToList) {
            try {
                MimeMessageHelper helper = new MimeMessageHelper(message, true);
                helper.setFrom(sendFrom);
                helper.setTo(sendTo);
                helper.setSubject(subject);
                helper.setText(content, true);

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

                javaMailSender.send(message);
            } catch (MessagingException e) {
                log.error("{} send message to {} fail, subject => {}", sendFrom, sendTo, subject);
                return;
            }
            log.info("{} send message to {} success, subject => {}", sendFrom, sendTo, subject);
        }
    }

    /**
     * 发送html邮件
     * @param subject
     * @param content
     */
    @Override
    public void sendHtmlMailToAppoint(String subject, String content) {
        // html 邮件对象
        MimeMessage message = javaMailSender.createMimeMessage();

        for (String sendTo : sendToList) {
            try {
                //true表示需要创建一个multipart message
                MimeMessageHelper helper = new MimeMessageHelper(message, true);
                helper.setFrom(sendFrom);
                helper.setTo(sendTo);
                helper.setSubject(subject);
                helper.setText(content, true);

                javaMailSender.send(message);
            } catch (MessagingException e) {
                log.error("{} send message to {} fail, subject => {}", sendFrom, sendTo, subject);
                return;
            }
            log.info("{} send message to {} success, subject => {}", sendFrom, sendTo, subject);
        }

    }

    /**
     * 发送文本和附件邮件到指定邮箱
     *
     * @param subject
     * @param content
     * @param rscPath
     * @param rscId   任意
     */
    @Override
    public void sendInlineResourceMailToAppoint(String subject, String content, String rscPath, String rscId) {
        MimeMessage message = javaMailSender.createMimeMessage();

        for (String sendTo : sendToList) {
            try {
                MimeMessageHelper helper = new MimeMessageHelper(message, true);
                helper.setFrom(sendFrom);
                helper.setTo(sendTo);
                helper.setSubject(subject);
                helper.setText(content, true);

                FileSystemResource res = new FileSystemResource(new File(rscPath));
                helper.addInline(rscId, res);

                javaMailSender.send(message);
            } catch (MessagingException e) {
                log.error("{} send message to {} fail, subject => {}", sendFrom, sendTo, subject);
                return;
            }
            log.info("{} send message to {} success, subject => {}", sendFrom, sendTo, subject);
        }
    }

    /**
     * html模板发送邮箱
     * @param subject
     * @param content
     */
    @Override
    public void sendThymeleafEmailToAppoint(String subject, String content) {
        // 构造Email消息
        for (String sendTo : sendToList) {

            //创建邮件正文
            Context context = new Context();
            context.setVariable("id", "006");
            String emailContent = templateEngine.process("emailTemplate", context);

            try {
                this.sendHtmlMailToAppoint(subject, emailContent);
            } catch (Exception e) {
                log.error("{} send message to {} fail, subject => {}", sendFrom, sendTo, subject);
                return;
            }
            log.info("{} send message to {} success, subject => {}", sendFrom, sendTo, subject);
        }
    }

}

测试

public class EmailTest extends ZddPublicserviceApplicationTests {

    @Autowired
    private EmailServiceImpl sendSimpleEmail;

    @Test
    public void sendSimpleEmailToAppoint() {
        sendSimpleEmail.sendSimpleEmailToAppoint("test", "test");
    }

    @Test
    public void sendAttachmentsMailToAppoint() {
        String filePath="e:\\tmp\\application.log";
        sendSimpleEmail.sendAttachmentsMailToAppoint("主题：带附件的邮件", "有附件，请查收！", filePath);
    }

    @Test
    public void sendInlineResourceMailToAppoint() {
        String rscId = "neo006";
        String content="<html><body>这是有图片的邮件：<img src=\'cid:" + rscId + "\' ></body></html>";
        String imgPath = "C:\\Users\\summer\\Pictures\\favicon.png";

        sendSimpleEmail.sendInlineResourceMailToAppoint("主题：这是有图片的邮件", content, imgPath, rscId);
    }
}

qq邮箱授权码设置及代码教程

https://www.jiweichengzhu.com/article/124fc2989b984a789208761d332e4cf2

教程

https://www.cnblogs.com/ityouknow/p/6823356.html
https://juejin.im/post/5af25c61518825670a1046e9

亚马逊教程

https://blog.csdn.net/x_san3/article/details/82911909