應(yīng)用場景

發(fā)送郵件驗證碼等，定時發(fā)送、同時發(fā)送多封郵件等。

功能簡介

本項目通過Springboot發(fā)送email郵件，包括普通文本郵件 、HTML內(nèi)容板式郵件 、包含靜態(tài)資源郵件以及帶附件郵件等。

一封郵件同時發(fā)送多人、異步多線程發(fā)送郵件、定時發(fā)送郵件等場景功能。

項目說明

核心Maven依賴

org.springframework.boot

spring-boot-starter-mail

核心配置

如果是服務(wù)郵箱配置類似

#QQ郵箱服務(wù)主機(jī)地址
spring.mail.host=smtp.qq.com 

#郵箱賬號 
spring.mail.username=2389323369@qq.com

 #郵箱授權(quán)碼 
spring.mail.password=qtglycyclomqgci

#右鍵默認(rèn)編碼 
spring.mail.default-encoding=UTF-8

spring.mail.username=2289523269@qq.com

----需要修改成自己的郵箱賬號（發(fā)送方郵箱） #郵箱授權(quán)碼

spring.mail.password=qtglycyclomqgci

----需要修改成自己的郵箱授權(quán)碼（下面會介紹如何獲取）

QQ郵箱授權(quán)碼獲取

如果授權(quán)碼不正確會報錯誤

org.springframework.mail.MailAuthenticationException: Authentication failed; nested exception is javax.mail.AuthenticationFailedException: 535 Login Fail. Please enter your authorization code to login. More information in http://service.mail.qq.com/cgi-bin/help?subtype=1&&id=28&&no=1001256

at org.springframework.mail.javamail.JavaMailSenderImpl.doSend(JavaMailSenderImpl.java:439)

at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:322)

at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:311)

at com.example.demo.service.impl.MailServiceImpl.sendSimpleMail(MailServiceImpl.java:38)

1、什么是授權(quán)碼？

授權(quán)碼是QQ郵箱推出的，用于登錄第三方客戶端的專用密碼。適用于登錄以下服務(wù)：POP3/IMAP/SMTP/Exchange/CardDAV/CalDAV服務(wù)。溫馨提醒：為了你的帳戶安全，更改QQ密碼以及獨(dú)立密碼會觸發(fā)授權(quán)碼過期，需要重新獲取新的授權(quán)碼登錄。

2、怎么獲取授權(quán)碼？

進(jìn)入QQ郵箱主頁-->設(shè)置-->帳戶-->POP3/IMAP/SMTP/Exchange/CardDAV/CalDAV服務(wù):

點擊“開啟”-->驗證密保-->獲取授權(quán)碼:

核心代碼

@Service
public class MailServiceImpl implements MailService {

    /**
     * 日志
     */
  private static final org.slf4j.Logger logger = LoggerFactory.getLogger(MailServiceImpl.class);

  @Value("${spring.mail.username}")
    private String from;

    //用于發(fā)送文件
    @Autowired
    private JavaMailSender mailSender;

    @Override
    public void checkMail(EmailModel emailModel) {
        Assert.notNull(emailModel,"郵件模板不能為空");
        Assert.notNull(emailModel.getEmail(), "郵件收件人不能為空");
        Assert.notNull(emailModel.getSubject(), "郵件主題不能為空");
        Assert.notNull(emailModel.getContent(), "郵件內(nèi)容不能為空");
    }

    @Async("EmailAsync")
    @Override
    public Boolean sendSimpleMail(EmailModel emailModel) {
      try {
          SimpleMailMessage message = new SimpleMailMessage();
            message.setFrom(from);//發(fā)信人
            message.setTo(emailModel.getEmail().split(";"));//郵件收件人 1或多個 以";"隔開
          message.setSubject(emailModel.getSubject());//主題
          message.setText(emailModel.getContent());//內(nèi)容

          mailSender.send(message);

            logger.info("發(fā)送文本郵件成功");
      } catch (Exception e) {
        e.printStackTrace();
        logger.error("發(fā)送文本郵件失敗");
        return false;
      }
      return true;
    }

    @Async("EmailAsync")
    @Override
    public Boolean sendHtmlMail(EmailModel emailModel) {
        String to = emailModel.getEmail();
        String subject = emailModel.getSubject();
        String content = emailModel.getContent();
        logger.info("發(fā)送HTML郵件開始：{},{},{}", to, subject, content);
        //使用MimeMessage，MIME協(xié)議
        MimeMessage message = mailSender.createMimeMessage();
        
        MimeMessageHelper helper;
        //MimeMessageHelper幫助我們設(shè)置更豐富的內(nèi)容
        try {
            helper = new MimeMessageHelper(message, true);
            helper.setFrom(from);
            helper.setTo(to.split(";"));
            helper.setSubject(subject);
            helper.setText(content, true);//true代表支持html
            mailSender.send(message);
            logger.info("發(fā)送HTML郵件成功");
        } catch (MessagingException e) {
            logger.error("發(fā)送HTML郵件失敗：", e);
            return false;
        }
        return true;
    }

    @Async("EmailAsync")
    @Override
    public Boolean sendAttachMentMail(EmailModel emailModel) {
        String to = emailModel.getEmail();
        String subject = emailModel.getSubject();
        String content = emailModel.getContent();
        String filePath = emailModel.getAttachFilePath();
        logger.info("發(fā)送附件郵件開始：{},{},{},{}", to, subject, content, filePath);
        MimeMessage message = mailSender.createMimeMessage();
    
        MimeMessageHelper helper;
        try {
            helper = new MimeMessageHelper(message, true);
            //true代表支持多組件，如附件，圖片等
            helper.setFrom(from);
            helper.setTo(to.split(";"));
            helper.setSubject(subject);
            helper.setText(content, true);
            FileSystemResource file = new FileSystemResource(new File(filePath));
            String fileName = file.getFilename();
            helper.addAttachment(fileName, file);//添加附件，可多次調(diào)用該方法添加多個附件
            mailSender.send(message);
            logger.info("發(fā)送附件郵件成功");
            } catch (MessagingException e) {
                logger.error("發(fā)送附件郵件失敗", e);
                return false;
        }
            return true;
    }

    @Async("EmailAsync")
    @Override
    public Boolean sendInlineResourceMail(EmailModel emailModel) {
        String to = emailModel.getEmail();
        String subject = emailModel.getSubject();
        String content = emailModel.getContent();
        String resourcePath = emailModel.getResourcePath();
        String resourceName = emailModel.getResourceName();
        logger.info("發(fā)送帶圖片郵件開始：{},{},{},{},{}", to, subject, content, resourcePath, resourceName);
        MimeMessage message = mailSender.createMimeMessage();
        
        MimeMessageHelper helper;
        try {
            helper = new MimeMessageHelper(message, true);
            helper.setFrom(from);
            helper.setTo(to.split(";"));
            helper.setSubject(subject);
            helper.setText(content, true);
            // 以絕對路徑的方式讀取文件
            FileSystemResource res = new FileSystemResource(new File(resourcePath));
            helper.addInline(resourceName, res);//重復(fù)使用添加多個圖片
            mailSender.send(message);
            logger.info("發(fā)送帶圖片郵件成功");
        } catch (MessagingException e) {
            logger.error("發(fā)送帶圖片郵件失敗", e);
            return false;
        }
        return true;
    }

    @Async("EmailAsync")
    @Override
    public Boolean sendHtmlImageMail(EmailModel emailModel) {
        String to = emailModel.getEmail();
        String subject = emailModel.getSubject();
        String content = emailModel.getContent();
        String resourcePath = emailModel.getResourcePath();
        logger.info("發(fā)送帶圖片郵件開始：{},{},{},{}", to, subject, content, resourcePath);
        MimeMessage message = mailSender.createMimeMessage();
    
        MimeMessageHelper helper;
        try {
            helper = new MimeMessageHelper(message, true);
            helper.setFrom(from);
            helper.setTo(to.split(";"));
            helper.setSubject(subject);
            helper.setText(content, true);
            // cid是固定寫法
            helper.setText(
                "

hello world!

源碼下載地址獲取

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