Springboot 实现向邮箱发送邮箱验证码

向用户邮箱发送邮箱验证码需要第一步式完成基本的配置

application.yml

mail:
  host: smtp.qq.com
  port: 465
  username: 1261779459@qq.com
  password: qkaalllusnhzgcga
  default-encoding: UTF-8
  protocol: smtps
  properties:
    mail:
      smtp:
        auth: true
        starttls:
          enable: true
        ssl:
          enable: true
          connectiontimeout: 5000
          timeout: 5000
          writetimeout: 5000

创建一个ResetPasswordController

@RestController public class ResetPasswordController {

@Autowired
private JavaMailSender mailSender;

@PostMapping("/reset-password")
public ResponseEntity<String> resetPassword(@RequestParam String email, HttpSession session) {
    String code = generateCode();
    session.setAttribute(email, code);

    String subject = "重置密码验证码";
    String text = "您的验证码是：" + code + "，请勿泄露给其他人。";

    try {
        sendEmail(email, subject, text);
        return ResponseEntity.ok("验证码发送成功，请前往邮箱查收。");
    } catch (Exception e) {
        return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body("验证码发送失败，请稍后重试。");
    }
}

@PostMapping("/reset-password/verify")
public ResponseEntity<String> verifyCode(@RequestParam String email, @RequestParam code, HttpSession session) {
    String sessionCode = (String) session.getAttribute(email);

    if (sessionCode != null && sessionCode.equals(code)) {
        // 验证成功，可以允许用户重置密码
        session.removeAttribute(email);
        return ResponseEntity.ok("身份验证通过，可以重置密码。");
    } else {
        return ResponseEntity.status(HttpStatus.BAD_REQUEST).body("验证码错误或已过期，请重新验证。");
    }
}

private String generateCode() {
    // 生成随机6位数字验证码
    return String.format("%06d", new Random().nextInt(999999));
}

private void sendEmail(String to, String subject, String text) throws MessagingException {
    MimeMessage message = mailSender.createMimeMessage();
    MimeMessageHelper helper = new MimeMessageHelper(message, true);

    helper.setFrom("xxx@xxx.com");	
    helper.setTo(to);
    helper.setSubject(subject);
    helper.setText(text);

    mailSender.send(message);