• 邮箱控制
      • 启用客户端 SMTP服务

    • Spring Email

      • 导入依赖的 jar 包

        1. <!-- 导入发邮件的依赖 -->
        2. <dependency>
        3.    <groupId>org.springframework.boot</groupId>
        4.    <artifactId>spring-boot-starter-mail</artifactId>
        5.    <version>2.6.2</version>
        6. </dependency>

      • 邮箱参数设置

        1. # MailProperties
        2. spring.mail.host=smtp.sina.com
        3. spring.mail.username=xxx@xxx.com
        4. spring.mail.password=xxxxxx
        5. spring.mail.protocol=smtp
        6. spring.mail.properties.mail.smtp.ssl.enable=true

      • 使用 JavaMailSender 发送邮件：封装一个工具类MailClient ```java import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Value; import org.springframework.mail.javamail.JavaMailSender; import org.springframework.mail.javamail.MimeMessageHelper; import org.springframework.stereotype.Component;

    import javax.mail.MessagingException; import javax.mail.internet.MimeMessage;

    @Component public class MailClient { private static final Logger logger = LoggerFactory.getLogger(MailClient.class);

    1. @Autowired
    2. private JavaMailSender mailSender;
    4. @Value("${spring.mail.username}")
    5. private String from;
    7. public void sendMail(String to,String subject,String content) {
    8.     try {
    9.         MimeMessage message = mailSender.createMimeMessage();
    10.         MimeMessageHelper helper = new MimeMessageHelper(message);
    11.         helper.setFrom(from);
    12.         helper.setTo(to);
    13.         helper.setSubject(subject);
    14.         helper.setText(content,true);
    15.         mailSender.send(helper.getMimeMessage());
    16.     } catch (MessagingException e) {
    17.         logger.error("发送邮件失败："+e.getMessage());
    18.     }
    19. }

    }

    2. - 模板引擎
    3.    - 使用 Thymeleaf 发送 HTML 邮件
    4. ```html
    5. <!DOCTYPE html>
    6. <html lang="en" xmlns:th="http://www.thymeleaf.org">
    7. <head>
    8.     <meta charset="UTF-8">
    9.     <title>邮件示例</title>
    10. </head>
    11. <body>
    12.     <p>欢迎你，<span th:text="${username}"></span></p>
    13. </body>
    14. </html>

    • 测试使用相应的HTML模板发送邮件

      1. @RunWith(SpringRunner.class)
      2. @ContextConfiguration(classes = CommunityApplication.class)
      3. @SpringBootTest
      4. public class MailTests {
      6.   // 注入已经封装好的工具类
      7.   @Autowired
      8.   private MailClient mailClient;
      10.   // 注入模板引擎
      11.   @Autowired
      12.   private TemplateEngine templateEngine;
      14.   @Test
      15.   public void testSendMail() {
      16.       mailClient.sendMail("2218877219@qq.com","SpringBootTest","hello");
      17.   }
      18.   @Test
      19.   public void testHtmlMail() {
      20.       Context context = new Context();
      21.       context.setVariable("username","Ethereal");
      22.       // 使用 resources/templates/mail/demo.html作为模板发送邮件
      23.       String content = templateEngine.process("/mail/demo",context);
      24.       System.out.println(content);
      25.       mailClient.sendMail("2218877219@qq.com","HtmlMailTest","welcome");
      26.   }
      27. }