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SpringBoot整合Mail

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Spring中默认有starter实现类Mail

依赖

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

配置文件

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# JavaMailSender 邮件发送的配置
spring.mail.host=smtp.qq.com
spring.mail.username=用户qq邮箱
#QQ邮箱的授权码
spring.mail.password=密码
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.starttls.enable=true
spring.mail.properties.mail.smtp.starttls.required=true
spring.mail.default-encoding=UTF-8

简单邮件

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public void sendSimpleMail(){
    try{
        SimpleMaileMessage simpleMailMessage = new SimpleMailMessage();
        simpleMailMessage .setFrom("sendFrom@qq.com");
        simpleMailMessage .setTo("sendTo@qq.com");
        simpleMailMessage.setSubject("主题");
        simpleMailMessage.setText("内容");
        javaMailSender.send(simpleMailMessage);//发送
    }catch(Exception e){
        logger.error("发送失败",e.getMessage());
    }
}

自定义发件人名称

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String nick = "";
            try {
                nick = javax.mail.internet.MimeUtility.encodeText("张三");
            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            }
            // 设置发件人
            mimeMsg.setFrom(new InternetAddress("sendFrom@qq.com", nick));

html格式邮件

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public void sendHTMLMail(MailBean mailBean) {
        MimeMessage mimeMailMessage = null;
        try {
            mimeMailMessage = javaMailSender.createMimeMessage();
            MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(mimeMailMessage, true);
            mimeMessageHelper.setFrom(MAIL_SENDER);
            mimeMessageHelper.setTo(mailBean.getRecipient());
            mimeMessageHelper.setSubject(mailBean.getSubject());
            mimeMessageHelper.setText("<h1>hello</h1>", true);
            javaMailSender.send(mimeMailMessage);
        } catch (Exception e) {
            logger.error("邮件发送失败", e.getMessage());
        }
    }

带附件格式的邮件

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public void sendAttachmentMail(MailBean mailBean) {
       MimeMessage mimeMailMessage = null;
       try {
           mimeMailMessage = javaMailSender.createMimeMessage();
           MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(mimeMailMessage, true);
           mimeMessageHelper.setFrom(MAIL_SENDER);
           mimeMessageHelper.setTo(mailBean.getRecipient());
           mimeMessageHelper.setSubject(mailBean.getSubject());
           mimeMessageHelper.setText(mailBean.getContent());
           //文件路径  spring的FileSystemResource,使用绝对路径访问文件资源
           FileSystemResource file = new FileSystemResource(new File("src/main/resources/static/image/mail.png"));
           mimeMessageHelper.addAttachment("mail.png", file);

           javaMailSender.send(mimeMailMessage);
       } catch (Exception e) {
           logger.error("邮件发送失败", e.getMessage());
       }
   }

发送带静态资源的邮件

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public void sendInlineMail(MailBean mailBean) {
    MimeMessage mimeMailMessage = null;
    try {
        mimeMailMessage = javaMailSender.createMimeMessage();
        MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(mimeMailMessage, true);
        mimeMessageHelper.setFrom(MAIL_SENDER);
        mimeMessageHelper.setTo(mailBean.getRecipient());
        mimeMessageHelper.setSubject(mailBean.getSubject());
        mimeMessageHelper.setText("<html><body>带静态资源的邮件内容，这个一张IDEA配置的照片:<img src='cid:picture' /></body></html>", true);
        //文件路径
        FileSystemResource file = new FileSystemResource(new File("src/main/resources/static/image/mail.png"));
        mimeMessageHelper.addInline("picture", file);

        javaMailSender.send(mimeMailMessage);
    } catch (Exception e) {
        logger.error("邮件发送失败", e.getMessage());
    }
}

基于Freemarker的模板邮件

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public void sendTemplateMail(MailBean mailBean) {
        MimeMessage mimeMailMessage = null;
        try {
            mimeMailMessage = javaMailSender.createMimeMessage();
            MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(mimeMailMessage, true);
            mimeMessageHelper.setFrom(MAIL_SENDER);
            mimeMessageHelper.setTo(mailBean.getRecipient());
            mimeMessageHelper.setSubject(mailBean.getSubject());

            Map<String, Object> model = new HashMap<String, Object>();
            model.put("content", mailBean.getContent());
            model.put("title", "标题Mail中使用了FreeMarker");
            Template template = configuration.getTemplate("mail.ftl");
            String text = FreeMarkerTemplateUtils.processTemplateIntoString(template, model);
            mimeMessageHelper.setText(text, true);

            javaMailSender.send(mimeMailMessage);
        } catch (Exception e) {
            logger.error("邮件发送失败", e.getMessage());
        }

    }

动态添加邮箱配置信息

和之前使用接口javaMailSender不同，这次使用的是接口的实现类。
使用JavaMailSenderImpl

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public void sendSimpleMail() throws Exception {
	JavaMailSenderImpl mailSender = new JavaMailSenderImpl();//直接生产一个实例
	String users[] = {"xxxxx@qq.com","xxxxx@126.com"};
	mailSender.setHost("smtp.126.com");//动态添加配置
	mailSender.setPassword("xxxxx");
	mailSender.setPort(25);
	mailSender.setProtocol("smtp");
	mailSender.setUsername("xxxxx");
	SimpleMailMessage message = new SimpleMailMessage();
	message.setFrom("xxxxxxx");
	message.setTo(users); // 使用数组的形式还可以群发
	message.setSubject("羽毛球比赛");
	message.setText("报名参加羽毛球赛");
	mailSender.send(message);
	}