一、邮箱设置

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二、SpringBoot整合JavaMail

1.导入依赖

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-mail</artifactId>
            <version>2.6.7</version>
        </dependency>

2.配置邮箱参数

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三、利用JavaMail相关Api实现发送邮件功能

1.创建Mail工具类

@Component
public class MailClient {

    @Autowired
    private JavaMailSender mailSender;

    @Value("${spring.mail.username}")
    private String from;

    public void sendMail(String to, String subject, String content) {
        try{
            MimeMessage mimeMessage = mailSender.createMimeMessage();
            MimeMessageHelper helper = new MimeMessageHelper(mimeMessage);
            helper.setFrom(from);
            helper.setTo(to);
            helper.setSubject(subject);
            helper.setText(content, true);
            mailSender.send(helper.getMimeMessage());
        } catch (MessagingException e) {
            e.printStackTrace();
        }
    }

}

2.利用thymeleaf创建模板

<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>邮件示例</title>
</head>
<body>
    <p>欢迎你，<span style="color: red" th:text="${username}"></span>!</p>
</body>
</html>