最近公司要做一個郵箱註冊和重置密碼的功能，因為之前就做過，但是不是Springboot項目，所以相對來說還是比較容易的，在這裏記錄一下。

一、引用Maven依賴 這裏使用spring自帶的郵件jar包

       <!-- 郵件服務 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-mail</artifactId>
 

        </dependency>

二、yml配置

#郵箱配置
spring：
  mail:
    host: smtp.exmail.qq.com
    port: 465
    protocol: smtp
    username: ********  //你的郵箱賬號
    password: ********  //你的登陸密碼
    default-encoding: UTF-8
    properties:
      mail:
        smtp:
          auth: true
          starttls:
            enable: 
 
true
            required: true

三、創建EmailImpl類作為email組件

@Component
public class EmailImpl {

    private final Logger logger = LoggerFactory.getLogger(this.getClass());

    @Resource
    private RedisUtil redisUtil;


    @Value("${spring.mail.username}")
    public String from;
    @Value("${spring.mail.password}")
    
 
public String password;// 登錄密碼
    @Value("${spring.mail.protocol}")
    public String protocol;// 協議
    @Value("${spring.mail.port}")
    public String port;// 端口
    @Value("${spring.mail.host}")
    public String host;// 服務器地址

    private String theme = "註冊驗證碼";

    private String reset = "重置驗證碼";

    //初始化參數
    public Session initProperties() {
        Properties properties = new Properties();
        properties.setProperty("mail.transport.protocol", protocol);
        properties.setProperty("mail.smtp.host", host);
        properties.setProperty("mail.smtp.port", port);
        // 使用smtp身份驗證
        properties.put("mail.smtp.auth", "true");
        // 使用SSL,企業郵箱必需 start
        // 開啟安全協議
        MailSSLSocketFactory mailSSLSocketFactory = null;
        try {
            mailSSLSocketFactory = new MailSSLSocketFactory();
            mailSSLSocketFactory.setTrustAllHosts(true);
        } catch (GeneralSecurityException e) {
            e.printStackTrace();
        }
        properties.put("mail.smtp.enable", "true");
        properties.put("mail.smtp.ssl.socketFactory", mailSSLSocketFactory);
        properties.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
        properties.put("mail.smtp.socketFactory.fallback", "false");
        properties.put("mail.smtp.socketFactory.port", port);
        Session session = Session.getDefaultInstance(properties, new Authenticator() {
            @Override
            protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication(from, password);
            }
        });
        // 使用SSL,企業郵箱必需 end
        // TODO 顯示debug信息 正式環境註釋掉
        session.setDebug(true);
        return session;
    }

    /**
     * 發送註冊郵箱驗證碼
     * @param sender
     * @return
     */
    public Boolean sendHtmlEmail(String sender) {
        boolean lean = false;
        try {
            Session session = initProperties();
            MimeMessage mimeMessage = new MimeMessage(session);
            mimeMessage.setFrom(new InternetAddress(from,"Tesra"));// 發件人,可以設置發件人的別名
            // 收件人,多人接收
            InternetAddress[] internetAddressTo = new InternetAddress().parse(sender);
            mimeMessage.setRecipients(Message.RecipientType.TO, internetAddressTo);
            // 主題
            mimeMessage.setSubject(theme);
            // 時間
            mimeMessage.setSentDate(new Date());
            // 容器類 附件
            MimeMultipart mimeMultipart = new MimeMultipart();
            // 可以包裝文本,圖片,附件
            MimeBodyPart bodyPart = new MimeBodyPart();
            String code = CodeUtils.getMathVal();
            // 設置內容 getEmailHtml是郵箱內容模板
            bodyPart.setContent(getEmailHtml(sender,code), "text/html; charset=UTF-8");
            mimeMultipart.addBodyPart(bodyPart);
            // 添加圖片&附件
//            bodyPart = new MimeBodyPart();
//            bodyPart.attachFile(fileSrc);
//            mimeMultipart.addBodyPart(bodyPart);
            mimeMessage.setContent(mimeMultipart);
            mimeMessage.saveChanges();
            Transport.send(mimeMessage);
            redisUtil.set(sender,code, UserConstant.time);
            lean = true;
        } catch (MessagingException e) {
            e.printStackTrace();
            lean = false;
            logger.error("發送註冊郵件失敗："+sender+" ----"+e.getMessage());
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
            lean = false;
            logger.error("發送註冊郵件失敗："+sender+" ----"+e.getMessage());
        }
        return lean;
    }


    /**
     * 發送重置郵箱驗證碼
     * @param sender
     * @return
     */
    public Boolean sendHtmlEmailCZ(String sender) {
        Boolean lean = false;
        try {
            Session session = initProperties();
            MimeMessage mimeMessage = new MimeMessage(session);
            mimeMessage.setFrom(new InternetAddress(from,"Tesra"));// 發件人,可以設置發件人的別名
            // 收件人,多人接收
            InternetAddress[] internetAddressTo = new InternetAddress().parse(sender);
            mimeMessage.setRecipients(Message.RecipientType.TO, internetAddressTo);
            // 主題
            mimeMessage.setSubject(reset);
            // 時間
            mimeMessage.setSentDate(new Date());
            // 容器類 附件
            MimeMultipart mimeMultipart = new MimeMultipart();
            // 可以包裝文本,圖片,附件
            MimeBodyPart bodyPart = new MimeBodyPart();
            String code = CodeUtils.getMathVal();
            // 設置內容 getEmailReset是發送郵箱的html模板
            bodyPart.setContent(getEmailReset(sender,code), "text/html; charset=UTF-8");
            mimeMultipart.addBodyPart(bodyPart);
            // 添加圖片&附件
//            bodyPart = new MimeBodyPart();
//            bodyPart.attachFile(fileSrc);
//            mimeMultipart.addBodyPart(bodyPart);
            mimeMessage.setContent(mimeMultipart);
            mimeMessage.saveChanges();
            Transport.send(mimeMessage);
            redisUtil.set(sender,code, UserConstant.time);
            lean = true;
        } catch (MessagingException e) {
            e.printStackTrace();
            lean = false;
            logger.error("發送重置郵件失敗："+sender+" ----"+e.getMessage());
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
            lean = false;
            logger.error("發送重置郵件失敗："+sender+" ----"+e.getMessage());
        }
        return lean;
    }
}

四、郵箱html模板

/**
     * 註冊郵箱模板
     * @param to 郵箱號
     * @param code 驗證碼
     * @return
     */
    public String getEmailHtml(String to,String code){
        String[] tos = to.split("@");
        String sub = tos[0].substring(0,2);
        String email = sub+"*******@"+tos[1];
        String html = "<div style=\"padding: 0px 0px 0px 20px;box-sizing: border-box;color: #333333;font-family: \"microsoft yahei\";font-size: 14px\">" +
               "<h3 style=\"font-weight: normal;font-size: 18px;\">Test測試</h3>" +
               "<h4 style=\"color:#2672EC;font-size: 40px;margin-top: 24px;font-weight: normal;\">賬號註冊驗證碼</h4>" +
               "<div style=\"margin-top: 40px;\">您好，您正在使用<a href=\"javascript:;\" target=\"_blank\" style=\"color: #2672EC;text-decoration: none;\">"+email+"</a>註冊賬號。</div>" +
               "<div style=\"margin-top: 30px;\">您的註冊驗證碼為：<em style=\"font-style: normal;font-weight: 600;\">"+code+"</em></div>" +
               "<div style=\"margin-top: 35px;\">謝謝！</div>" +
               "<div style=\"margin-top: 10px;\">Test測試</div>" +
               "</div>";
        return html;
    }

五、方法調用

    @Autowired
    private EmailImpl emailImpl;

    //email郵箱號    
    emailImpl.sendHtmlEmail(email);

至此就完成了SpringBoot使用qq郵箱發送郵件。

SpringBoot使用qq郵箱發送郵件