SubEthaSMTP SMTP处理程序线程NoClassDefFoundError jakarta/mail/inte

Question

SubEthaSMTP服务器在端口25001上运行良好。从我的客户端代码成功验证到Subethasmtp服务器后，我收到以下错误消息org.subethamail.smtp.server.Session:smtp处理程序线程中出现意外错误java.lang.NoClassDefFoundError:jakarta/mail/internet/AddressException

这是我的SMTPServerConfig类

@Configuration
public class SMTPServerConfig {
private final SMTPServer smtpServer;
private final SimpleMessageListener marketingMsgListener;
private final UsernamePasswordValidator authValidator;
private final EasyAuthenticationHandlerFactory easyAuth;
public SMTPServerConfig(SimpleMessageListener marketingMsgListener) {
authValidator = new SimpleAuthValidatorImpl();
easyAuth = new EasyAuthenticationHandlerFactory(authValidator);
this.marketingMsgListener = marketingMsgListener;
this.smtpServer = SMTPServer
.port(25001)
.simpleMessageListener(this.marketingMsgListener)
.requireAuth(true)
.authenticationHandlerFactory(easyAuth)
.hostName("localhost")
.hideTLS(false)
.enableTLS(true)
.requireTLS(false)
.requireAuth(true)
.connectionTimeout(1, TimeUnit.MINUTES)
.maxMessageSize(10000)
.maxConnections(20)
.build();
this.smtpServer.stop();
this.smtpServer.start();
}

我正在使用用户名密码验证器

@Configuration
public class SimpleAuthValidatorImpl implements UsernamePasswordValidator {
private final String CREDENTIALS_LOGIN = "christclau";
private final String CREDENTIALS_PASSWORD = "password";
@Override
public void login(String username, String password, MessageContext context) throws LoginFailedException {
if(CREDENTIALS_LOGIN.equals(username) && CREDENTIALS_PASSWORD.equals(password)){
System.out.println("yes Authenticated successfully");
}else{
System.err.println("no Invalid authentication !");
throw new LoginFailedException();
}
}
}

这是我的邮件客户端发送消息到服务器

public void sendMail(Mail mail) {
final String username = "christclau";
final String password = "password";
Properties prop = new Properties();
prop.put("mail.smtp.host", "localhost");
prop.put("mail.smtp.port", "25001");
prop.put("mail.smtp.auth", "true");
//prop.put("mail.debug", "true");
//prop.put("mail.smtp.starttls.enable", "true"); //TLS

Session session = Session.getInstance(prop,
new javax.mail.Authenticator() {
@Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}
});
session.setDebug(true);
try {
Message message = new MimeMessage(session);
message.setFrom(new InternetAddress(mail.getFrom()));
message.setRecipients(
Message.RecipientType.TO,
InternetAddress.parse(mail.getTo())
);
message.setSubject(mail.getSubject());
message.setText("HI you have done sending mail with outlook");
Transport.send(message);
System.out.println("Done");
} catch (MessagingException e) {
e.printStackTrace();
}
}

这是输出消息

DEBUG: setDebug: Jakarta Mail version 1.6.7
DEBUG: getProvider() returningjavax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Oracle]
DEBUG SMTP: need username and password for authentication
DEBUG SMTP: protocolConnect returning false, host=localhost, user=MY PC, password=<null>
DEBUG SMTP: useEhlo true, useAuth true
DEBUG SMTP: trying to connect to host "localhost", port 25001, isSSL false 220 localhost ESMTP SubEthaSMTP null
DEBUG SMTP: connected to host "localhost", port: 25001
EHLO DESKTOP-FFJA5IP
250-localhost
250-8BITMIME
250-SIZE 10000
250-STARTTLS
250-CHUNKING
250-AUTH PLAIN LOGIN
250 Ok
DEBUG SMTP: Found extension "8BITMIME", arg ""
DEBUG SMTP: Found extension "SIZE", arg "10000"
DEBUG SMTP: Found extension "STARTTLS", arg ""
DEBUG SMTP: Found extension "CHUNKING", arg ""
DEBUG SMTP: Found extension "AUTH", arg "PLAIN LOGIN"
DEBUG SMTP: Found extension "Ok", arg ""
DEBUG SMTP: protocolConnect login, host=localhost, user=christclau, password=<non-null>
DEBUG SMTP: Attempt to authenticate using mechanisms: LOGIN PLAIN DIGEST-MD5 NTLM XOAUTH2
DEBUG SMTP: Using mechanism LOGIN
DEBUG SMTP: AUTH LOGIN command trace suppressed
yes Authenticated successfully
DEBUG SMTP: AUTH LOGIN succeeded
DEBUG SMTP: use8bit false
MAIL FROM:<[e-mail]>
2022-02-26 11:21:40.081 ERROR 9452 --- [127.0.0.1:50466] org.subethamail.smtp.server.Session      : Unexpected error in the SMTP handler thread
java.lang.NoClassDefFoundError: jakarta/mail/internet/AddressException
at org.subethamail.smtp.internal.command.MailCommand.execute(MailCommand.java:74) ~[subethasmtp-6.0.1.jar:na]
at org.subethamail.smtp.internal.server.RequireTLSCommandWrapper.execute(RequireTLSCommandWrapper.java:32) ~[subethasmtp-6.0.1.jar:na]
at org.subethamail.smtp.internal.server.RequireAuthCommandWrapper.execute(RequireAuthCommandWrapper.java:35) ~[subethasmtp-6.0.1.jar:na]
at org.subethamail.smtp.internal.server.CommandHandler.handleCommand(CommandHandler.java:86) ~[subethasmtp-6.0.1.jar:na]
at org.subethamail.smtp.server.Session.runCommandLoop(Session.java:261) ~[subethasmtp-6.0.1.jar:na]
at org.subethamail.smtp.server.Session.run(Session.java:170) ~[subethasmtp-6.0.1.jar:na]
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) ~[na:na]
at java.base/java.lang.Thread.run(Thread.java:833) ~[na:na]
Caused by: java.lang.ClassNotFoundException: jakarta.mail.internet.AddressException
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641) ~[na:na]
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188) ~[na:na]
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:520) ~[na:na]
... 9 common frames omitted

这是我的依赖

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
<dependency>
<groupId>com.github.davidmoten</groupId>
<artifactId>subethasmtp</artifactId>
<version>6.0.1</version>
</dependency>

Answer 1

Spring Boot 2.6及更早版本仍然使用JakartaMail(以前的JavaMail(的javax.mail命名空间，而您的SubEtha SMTP版本似乎需要jakarta.mail命名空间。Spring Boot明确指定了JakartaMail包的版本，请参阅Spring Boot Dependency versions并搜索jakarta.mail。对于Spring Boot 2.6.4，它列出了1.6.7版本，该版本仍然基于javax.mail命名空间。

您需要将SubEtha SMTP降级到仍然使用JakartaMail/JavaMail的javax.mail命名空间的版本，并等待Spring Boot 3，然后再使用需要jakarta.mail命名空间的版本。

理论上，您也可以将Maven属性jakarta-mail.version设置为2.0.1，但这可能会在Spring Boot的其他部分造成问题，因此我不建议这样做。