以下是我用来发送电子邮件的方法
public static void main(String[] args) {
final String fromEmail = "abc@gmail.com"; //requires valid gmail id
final String password = "123456"; // correct password for gmail id
final String toEmail = "xyz@gmail.com,ghi@gmail.com";
System.out.println("TLSEmail Start");
Properties props = new Properties();
props.put("mail.smtp.host", "smtp.gmail.com");
props.put("mail.smtp.port", "587");
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.starttls.enable", "true");
Authenticator auth = new Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(fromEmail, password);
}
};
Session session = Session.getInstance(props, auth);
sendEmail(session, toEmail,"TLSEmail Testing Subject", "TLSEmail Testing Body");
}
public static void sendEmail(Session session, String toEmail, String subject, String body){
try
{
MimeMessage msg = new MimeMessage(session);
//set message headers
msg.addHeader("Content-type", "text/HTML; charset=UTF-8");
msg.addHeader("format", "flowed");
msg.addHeader("Content-Transfer-Encoding", "8bit");
String content = getContent();
msg.setSubject(subject, "UTF-8");
msg.setContent(content.toString(), "text/html");
msg.setSentDate(new Date());
msg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(toEmail, false));
System.out.println("Message is ready");
Transport transport = session.getTransport("smtp");
transport.connect();
Transport.send(msg);
System.out.println("EMail Sent Successfully!!");
transport.close();
}
catch (Exception e) {
e.printStackTrace();
}
}
这是我突然开始得到的例外
javax.mail.MessagingException: Could not convert socket to TLS;
nested exception is:
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: timestamp check failed
at com.sun.mail.smtp.SMTPTransport.startTLS(SMTPTransport.java:1999)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:709)
at javax.mail.Service.connect(Service.java:386)
at javax.mail.Service.connect(Service.java:245)
at javax.mail.Service.connect(Service.java:194)
at com.sharique.mail.util.EmailUtil.sendEmail(EmailUtil.java:45)
at com.sharique.main.TestMain.main(TestMain.java:38)
Caused by: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: timestamp check failed
at sun.security.ssl.Alerts.getSSLException(Unknown Source)
at sun.security.ssl.SSLSocketImpl.fatal(Unknown Source)
at sun.security.ssl.Handshaker.fatalSE(Unknown Source)
at sun.security.ssl.Handshaker.fatalSE(Unknown Source)
at sun.security.ssl.ClientHandshaker.serverCertificate(Unknown Source)
at sun.security.ssl.ClientHandshaker.processMessage(Unknown Source)
at sun.security.ssl.Handshaker.processLoop(Unknown Source)
at sun.security.ssl.Handshaker.process_record(Unknown Source)
at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
at com.sun.mail.util.SocketFetcher.configureSSLSocket(SocketFetcher.java:543)
at com.sun.mail.util.SocketFetcher.startTLS(SocketFetcher.java:480)
at com.sun.mail.smtp.SMTPTransport.startTLS(SMTPTransport.java:1994)
... 6 more
Caused by: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: timestamp check failed
at sun.security.validator.PKIXValidator.doValidate(Unknown Source)
at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
at sun.security.validator.Validator.validate(Unknown Source)
at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
... 17 more
Caused by: java.security.cert.CertPathValidatorException: timestamp check failed
at sun.security.provider.certpath.PKIXMasterCertPathValidator.validate(Unknown Source)
at sun.security.provider.certpath.PKIXCertPathValidator.doValidate(Unknown Source)
at sun.security.provider.certpath.PKIXCertPathValidator.engineValidate(Unknown Source)
at java.security.cert.CertPathValidator.validate(Unknown Source)
... 23 more
Caused by: java.security.cert.CertificateExpiredException: NotAfter: Sat Apr 04 20:45:55 IST 2015
at sun.security.x509.CertificateValidity.valid(Unknown Source)
at sun.security.x509.X509CertImpl.checkValidity(Unknown Source)
at sun.security.provider.certpath.BasicChecker.verifyTimestamp(Unknown Source)
at sun.security.provider.certpath.BasicChecker.check(Unknown Source)
... 27 more
代码工作正常没有任何错误，但就在几分钟前它开始给我上述异常。我没有改变代码，所以我不知道怎么回事。请告诉我如何解决此问题。
答案 0 :(得分：1)
解决方案是添加该行props.put（“mail.smtp.ssl.trust”，“smtp.gmail.com”）;
答案 1 :(得分：0)
该例外清楚地说明了导致它的原因。 您的邮件服务器的证书似乎已过期，尝试使用浏览器访问服务器并检查其证书或尝试使用wget获取服务器上的任何页面，您应该收到证书错误。
Caused by: java.security.cert.CertPathValidatorException: timestamp check failed
at sun.security.provider.certpath.PKIXMasterCertPathValidator.validate(Unknown Source)
at sun.security.provider.certpath.PKIXCertPathValidator.doValidate(Unknown Source)
at sun.security.provider.certpath.PKIXCertPathValidator.engineValidate(Unknown Source)
at java.security.cert.CertPathValidator.validate(Unknown Source)
... 23 more
Caused by: java.security.cert.CertificateExpiredException: NotAfter: Sat Apr 04 20:45:55 IST 2015
at sun.security.x509.CertificateValidity.valid(Unknown Source)
at sun.security.x509.X509CertImpl.checkValidity(Unknown Source)
at sun.security.provider.certpath.BasicChecker.verifyTimestamp(Unknown Source)
at sun.security.provider.certpath.BasicChecker.check(Unknown Source)
... 27 more
答案 2 :(得分：0)
我也有同样的问题。 （甚至显示相同的＆＃34; Not After＆＃34;消息和你的同一时间）。在更改了一些配置之后，它又开始工作了，但是，我回到原来的配置并且工作正常。我认为这是Gmail中的一个小问题，他们已经修复了。你尝试过使用465端口吗？我正在使用的端口正在为我工作。
此外，这是我的配置似乎是发送没有例外的电子邮件（这是我的grails应用程序中的配置，但你应该能够将它们移植到你的Java代码）：
grails.mail.host = "smtp.gmail.com"
grails.mail.port = 465
grails.mail.username = "xxxx@gmail.com"
grails.mail.password = "xxxxxxx"
grails.mail.props = ["mail.smtp.auth":"true",
"mail.smtp.socketFactory.port":"465",
"mail.smtp.socketFactory.class":"javax.net.ssl.SSLSocketFactory",
"mail.smtp.socketFactory.fallback":"false"]
答案 3 :(得分：0)
我的一个应用程序开始自动重新发送邮件，而不会对代码进行任何更改...