JavaMailSenderImpl上的MessaginException

我正在尝试使用org.springframework.mail.MailSender发送电子邮件

我在以下类中配置了MailSender和MessageSource bean：

  @Configuration

 public class MailProvider {

@Bean(name = "mailSender")
public MailSender javaMailService() {
    JavaMailSenderImpl javaMailSender = new JavaMailSenderImpl();
    javaMailSender.setHost("smtp.gmail.com");
    javaMailSender.setPort(587);
    javaMailSender.setProtocol("smtp");
    Properties mailProperties = new Properties();
    mailProperties.put("mail.smtp.auth", Boolean.TRUE);
    mailProperties.put("mail.transport.protocol", "smtp");
    mailProperties.put("mail.smtp.starttls.enable", Boolean.TRUE);
    mailProperties.put("mail.smtp.debug", Boolean.TRUE);
    javaMailSender.setJavaMailProperties(mailProperties);
    return javaMailSender;
}

@Bean
public MessageSource messageSource() {
    final ReloadableResourceBundleMessageSource messageSource = new ReloadableResourceBundleMessageSource();
    messageSource.setUseCodeAsDefaultMessage(true);
    messageSource.setDefaultEncoding("UTF-8");
    messageSource.setCacheSeconds(0);
    return messageSource;
}

@Bean
public PostUserListener getListener() {
    return new PostUserListener();
}

@Bean(name = "email")
public SimpleMailMessage getMessage() {
    return new SimpleMailMessage();
}

  }

在应用程序部署（tomcat）期间，我捕获异常：

java.lang.NoClassDefFoundError: javax/mail/MessagingException
at ru.spb.dreamwhite.config.MailProvider.javaMailService(MailProvider.java:23)

Caused by: java.lang.ClassNotFoundException: javax.mail.MessagingException
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1365)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1188)

我使用上述bean的类：

@Component
public class PostUserListener implements ApplicationListener<OnPostUserDataEvent> {

private static Logger logger = Logger.getLogger(PostUserListener.class.getName());

@Autowired
SimpleMailMessage email;

@Autowired
private MailSender mailSender;

@Override
public void onApplicationEvent(OnPostUserDataEvent onPostUserDataEvent) {
    this.confirmPost(onPostUserDataEvent);
}

private void confirmPost(OnPostUserDataEvent onPostUserDataEvent) {
    logger.info("new user " + onPostUserDataEvent.getUser().getName() + " is created");

    User user = onPostUserDataEvent.getUser();
    String recipient = user.getEmail();
    String subject = "Registration Confirmation";
    String url = onPostUserDataEvent.getAppUrl();
    String message = "Thank you for registering. Please click on the below link to activate your account";
    email.setTo(recipient);
    email.setSubject(subject);
    email.setText(message + "http://localhost:8080" + url);
    mailSender.send(email);

   }
 }

@组件
公共类positionrListener实现ApplicationListener{
私有静态记录器Logger=Logger.getLogger（posteSerListener.class.getName（））；
@自动连线
简单电子邮件；
@自动连线
私人邮件发送者；
@凌驾
ApplicationEvent上的公共无效（OnPostUserDataEvent OnPostUserDataEvent）{
此.confirmPost（onPostUserDataEvent）；
}
私有void confirmPost（OnPostUserDataEvent OnPostUserDataEvent）{
logger.info（“创建了新用户”+onPostUserDataEvent.getUser（）.getName（）+”；
User User=onposturedataevent.getUser（）；
字符串recipient=user.getEmail（）；
字符串subject=“注册确认”；
字符串url=onPostUserDataEvent.getAppUrl（）；
String message=“感谢您的注册。请单击下面的链接激活您的帐户”；
email.setTo（收件人）；
email.setSubject（主题）；
email.setText（消息+”http://localhost:8080“+url）；
邮件发送者。发送（电子邮件）；
}
}

---

我无法理解信息例外的本质。这是否意味着遗漏了该类异常。或者它意味着其他类型的问题？…

这意味着类路径中没有必需的依赖项。在本例中javax.mail-您使用Spring Boot吗？我不使用Spring BootСПабббббб，бббббббббб，П107！