简介

Spring基于javax.mail封装了一套用于发送电子邮件的API，位于org.springframework.mail包下，下面将介绍下发送普通文本邮件和基于thymeleaf模版的邮件。

普通邮件

导入javax.mail依赖

    
    
        
     
      com.sun.mail
         
     
      javax.mail
         
     
      1.6.2
     
    

Spring配置类

@PropertySource(value="classpath:mail.properties")@Configurationpublic class SpringConfig {    @Autowired    Environment environment;        /**     * Spring邮件配置     */    @Bean    public JavaMailSenderImpl javaMailSenderImpl(){        JavaMailSenderImpl javaMailSenderImpl = new JavaMailSenderImpl();        javaMailSenderImpl.setHost(environment.getProperty("mail.host"));        javaMailSenderImpl.setUsername(environment.getProperty("mail.username"));        javaMailSenderImpl.setPassword(environment.getProperty("mail.password"));        javaMailSenderImpl.setDefaultEncoding(environment.getProperty("mail.encoding"));        return javaMailSenderImpl;    }}

邮件配置：mail.properties

#QQ邮箱发送邮件服务器mail.host=smtp.qq.com#QQ邮箱账户名mail.username=xxxxxx@qq.com#QQ邮箱授权码，开启IMAP/SMTP服务时会生成mail.password=lrorsapyffcwbegg#邮件发送编码mail.encoding=UTF-8

测试

@RunWith(SpringRunner.class)@ContextConfiguration(classes=SpringConfig.class)public class MailTest {    @Autowired    private JavaMailSenderImpl javaMailSenderImpl;        @Test    public void testSimpleMail() throws MessagingException{        MimeMessage message = javaMailSenderImpl.createMimeMessage();                //发送带附件和内联元素的邮件需要将第二个参数设置为true        MimeMessageHelper helper = new MimeMessageHelper(message, true);                //发送方邮箱，和配置文件中的mail.username要一致        helper.setFrom("xxxxxx@qq.com");                //接收方        helper.setTo("xxxxxx@qq.com");                //主题        helper.setSubject("邮件测试");                //邮件内容        helper.setText("", true);                //邮件内容内嵌的图片,addInline中的contentId要和邮件内容中的cid相对应        FileSystemResource res = new FileSystemResource(new File("e:/yc/1.jpg"));        helper.addInline("myphoto", res);                //邮件附件        FileSystemResource file = new FileSystemResource(new File("e:/yc/myphoto.zip"));        helper.addAttachment("myphoto.zip", file);                javaMailSenderImpl.send(message);    }}

基于thymeleaf模版的邮件

导入thymeleaf-spring依赖

        
     
      org.thymeleaf
         
     
      thymeleaf-spring4
         
     
      3.0.11.RELEASE
     
    

Spring配置类中添加thymeleaf模板配置

@Bean    public TemplateEngine emailTemplateEngine() {        SpringTemplateEngine templateEngine = new SpringTemplateEngine();        ClassLoaderTemplateResolver templateResolver = new ClassLoaderTemplateResolver();        templateResolver.setResolvablePatterns(Collections.singleton("*.html"));        templateResolver.setPrefix("/templates/");        templateResolver.setSuffix(".html");        templateResolver.setTemplateMode(TemplateMode.HTML);        templateResolver.setCharacterEncoding("UTF-8");        templateResolver.setCacheable(false);        templateEngine.addTemplateResolver(templateResolver);        return templateEngine;    }

模版文件：/src/main/resources/templates/msg.html

      
                
        您好， xxx，感谢您使用XXX服务，您正在进行邮箱验证，本次请求的验证码为：    
    
1111(为了保障您帐号的安全性，请在1小时内完成验证。)
    
        XXX团队
        2019年06月06日    
  

测试

@Autowired    private TemplateEngine emailTemplateEngine;        @Test    public void testTemplateMail() throws MessagingException{        MimeMessage message = javaMailSenderImpl.createMimeMessage();        MimeMessageHelper helper = new MimeMessageHelper(message, true);        helper.setFrom("xxxxxx@qq.com");        helper.setTo("xxxxxx@qq.com");        helper.setSubject("邮件测试");                //thymeleaf模版解析成String        Context ctx = new Context();        ctx.setVariable("name", "小姐姐");        ctx.setVariable("validCode", "88888888");        String htmlContent = emailTemplateEngine.process("msg.html", ctx);        helper.setText(htmlContent, true);                javaMailSenderImpl.send(message);    }