技術標籤：SpringBootjava

SpringBoot郵件傳送通知或郵件群發通知

友情提醒：需要同時傳送給多人的時間會長一些，可以給程式碼做時間優化，也可以使用原生的mail jar包，下面給上依賴，下面兩個任選其一就可以

 <!-- 郵件傳送 -->
        <!-- 郵件通知原生 -->
        <dependency>
            <groupId>javax.mail</groupId>
            <artifactId>mail</artifactId>
 

        </dependency>
        <!-- 時間會久一點 -->
<!--        <dependency>-->
<!--            <groupId>org.springframework.boot</groupId>-->
<!--            <artifactId>spring-boot-starter-mail</artifactId>-->
<!--        </dependency>-->
 

        <dependency>
            <groupId>com.aliyun</groupId>
            <artifactId>aliyun-java-sdk-dysmsapi</artifactId>
        </dependency>

直接上程式碼，需要的引數也都很詳細的標註出來了，直接postman測試就可以

/**
     * @param sendMail 傳送人郵箱
     * @param authorizationCode 授權碼
     * @param takeMails 收件人郵箱
     * */
 

    @ApiOperation("測試傳送郵件")
    @GetMapping("/sendMail")
    public CommonResultPojo sendMail (@Param("sendMail")String sendMail,@Param("authorizationCode")String authorizationCode,
                                      @Param("takeMail")String[] takeMails) throws Exception {
        Properties prop = new Properties();
        prop.setProperty("mail.host", "smtp.qq.com");  //todo 設定QQ郵件伺服器
        prop.setProperty("mail.transport.protocol", "smtp"); //todo 郵件傳送協議
        prop.setProperty("mail.smtp.auth", "true"); //todo 需要驗證使用者名稱密碼
        //todo QQ郵箱設定SSL加密
        MailSSLSocketFactory sf = new MailSSLSocketFactory();
        sf.setTrustAllHosts(true);
        prop.put("mail.smtp.ssl.enable", "true");
        prop.put("mail.smtp.ssl.socketFactory", sf);
        //todo 建立定義整個應用程式所需的環境資訊的 Session 物件
        Session session = Session.getDefaultInstance(prop, new Authenticator() {
            @Override
            protected PasswordAuthentication getPasswordAuthentication() {
                //todo 傳入發件人的姓名和授權碼
                return new PasswordAuthentication(sendMail,authorizationCode);
            }
        });
        //todo 通過session獲取transport物件
        Transport transport = session.getTransport();
        //todo 通過transport物件郵箱使用者名稱和授權碼連線郵箱伺服器
        transport.connect("smtp.qq.com",sendMail,authorizationCode);
        //todo 建立郵件,傳入session物件
        for(String takeMail:takeMails) {
            MimeMessage mimeMessage = complexEmail(session, sendMail, takeMail);
            //todo 傳送郵件
            transport.sendMessage(mimeMessage, mimeMessage.getAllRecipients());
        }
        //todo 關閉連線
        transport.close();
        return new CommonResultPojo(200,"傳送成功",1);
    }

    //todo 傳送郵件方法
    public static MimeMessage complexEmail(Session session,@Param("sendMail")String sendMail,
                                           @Param("takeMail") String takeMails) throws MessagingException {
        //todo 訊息的固定資訊
        MimeMessage mimeMessage = new MimeMessage(session);
            //todo 發件人
            mimeMessage.setFrom(new InternetAddress(sendMail));
            //todo 收件人
            mimeMessage.setRecipient(Message.RecipientType.TO, new InternetAddress(takeMails));
            //todo 郵件標題
            mimeMessage.setSubject("帶圖片和附件的郵件");
            //todo 準備圖片資料
            MimeBodyPart image = new MimeBodyPart();
            DataHandler handler = new DataHandler(new FileDataSource("D:\\hello.jpg"));
            image.setDataHandler(handler);
            image.setContentID("test.png"); //todo 設定圖片id
            //todo 準備文字
            MimeBodyPart text = new MimeBodyPart();
            text.setContent("這是一段文字<img src='cid:test.png'>", "text/html;charset=utf-8");
            //todo 附件
            MimeBodyPart appendix = new MimeBodyPart();
            appendix.setDataHandler(new DataHandler(new FileDataSource("D:\\zzzz.txt")));
            appendix.setFileName("test.txt");
            //todo 拼裝郵件正文
            MimeMultipart mimeMultipart = new MimeMultipart();
            mimeMultipart.addBodyPart(image);
            mimeMultipart.addBodyPart(text);
            mimeMultipart.setSubType("related"); //todo 文字和圖片內嵌成功
            //todo 將拼裝好的正文內容設定為主體
            MimeBodyPart contentText = new MimeBodyPart();
            contentText.setContent(mimeMultipart);
            //todo 拼接附件
            MimeMultipart allFile = new MimeMultipart();
            allFile.addBodyPart(appendix); //todo 附件
            allFile.addBodyPart(contentText); //todo 正文
            allFile.setSubType("mixed"); //todo 正文和附件都存在郵件中，所有型別設定為mixed
            //todo 放到Message訊息中
            mimeMessage.setContent(allFile);
            mimeMessage.saveChanges(); //todo 儲存修改
        if(mimeMessage !=null){
            System.out.println("郵件傳送成功!!");
        }else {
            System.out.println("郵件傳送失敗!!");
        }

        return mimeMessage;
    }

同時發給多人結果如下：

{
    "code": 200,
    "message": "傳送成功",
    "data": 1
}