【SpringBoot系列】邮件发送

1、application.yml配置

 1 spring:
 2   mail:
 3     host: smtp.qq.com
 4     username: xxxxxxxxx@qq.com
 5     password: ywbjioacvurubcjx
 6     properties:
 7       mail:
 8         smtp:
 9           ssl:
10             enable: true

2、发送简单邮件

 1 @SpringBootTest
 2 class MailApplicationTests {
 3 
 4     @Autowired
 5     JavaMailSenderImpl javaMailSender;  //用于发送邮件
 6 
 7     @Test
 8     void contextLoads() {
 9 
10         //一个简单邮件
11         SimpleMailMessage simpleMail = new SimpleMailMessage();
12         simpleMail.setSubject("zym你好");              //邮件主题
13         simpleMail.setText("are you OK？");            //邮件内容
14         simpleMail.setTo("xxxxxxx@qq.com");         //接收者
15         simpleMail.setFrom("xxxxxxxx@qq.com");        //发送者
16         javaMailSender.send(simpleMail);
17     }
18 }

3、发送html邮件

 1 @SpringBootTest
 2 class MailApplicationTests {
 3 
 4     @Autowired
 5     JavaMailSenderImpl javaMailSender;  //用于发送邮件
 6 
 7     @Test
 8     void contextLoads2() throws MessagingException {
 9 
10         //一个复杂邮件
11         MimeMessage mimeMessage = javaMailSender.createMimeMessage();
12         //用MimeMessageHelper组装复杂邮件，第二个参数为true，可以发送附件
13         MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, true);
14         //正文，可以发送html文本，需要第二个参数为true
15         helper.setSubject("zym你好");
16         helper.setText("<p style='color:red'>春暖花开</p>",true);
17         //附件
18         helper.addAttachment("1.png", new File("C:\Users\admin\Desktop\images\4fa869f4794c4d64918337a2d2def1f3.jpg"));
19         helper.setTo("xxxxxxxxx@qq.com");           //接收者
20         helper.setFrom("xxxxxxxx@qq.com");         //发送者
21         javaMailSender.send(mimeMessage);
22     }
23 }

4、整合thymeleaf

 1 @SpringBootTest
 2 class MailApplicationTests {
 3 
 4     @Autowired
 5     private MailService mailService;
 6 
 7     @Test
 8     public void testSend() {
 9         String to = "xxxxxxxx@qq.com";
10         mailService.send(to, "模板邮件", UUID.randomUUID().toString().toUpperCase());
11     }
12 }

 1 @Service
 2 public class MailService {
 3     @Autowired
 4     private JavaMailSender mailSender;
 5 
 6     /**
 7      * 用来发送模版邮件
 8      */
 9     @Autowired
10     private TemplateEngine templateEngine;
11 
12     @Value("${spring.mail.username}")
13     private String from;
14 
15     public void send(String to, String subject, String text) {
16 
17         Context context = new Context();
18         context.setVariable("project", "demo");
19         context.setVariable("author", "yimcarson");
20         context.setVariable("code", text);
21         String emailContent = templateEngine.process("mail", context);
22 
23         MimeMessage message = mailSender.createMimeMessage();
24         MimeMessageHelper helper = null;
25         try {
26             helper = new MimeMessageHelper(message, true);
27             helper.setFrom(from);
28             helper.setTo(to);
29             helper.setSubject(subject);
30             helper.setText(emailContent, true);
31         } catch (MessagingException e) {
32             e.printStackTrace();
33         }
34         mailSender.send(message);
35     }
36 }

 1 <!DOCTYPE html>
 2 <html lang="en" xmlns:th="http://www.thymeleaf.org">
 3 <head>
 4     <meta charset="UTF-8">
 5     <title>yimcarson</title>
 6     <style>
 7         body {
 8             text-align: center;
 9             margin-left: auto;
10             margin-right: auto;
11         }
12         #main {
13             text-align: center;
14             position: absolute;
15         }
16     </style>
17 </head>
18 <body>
19 <div id="main">
20     <h3>Welcome <span th:text="${project}"></span> -By <span th:text=" ${author}"></span></h3>
21     Your Verification Code is
22     <h2><span th:text="${code}"></span></h2>
23 </div>
24 </body>
25 </html>