java JavaMail SocketException：连接重置
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JavaMail SocketException: Connection reset
提问by user2327683
I'm trying to send emails through JavaMail API but I end up receiving the SocketException: Connection reset.
我正在尝试通过 JavaMail API 发送电子邮件，但我最终收到了 SocketException: Connection reset。
import java.util.Properties;
import javax.mail.*;
import javax.mail.internet.*;
public class SendMailSSL {
public static void main(String[] args) {
Properties props = new Properties();
props.put("mail.smtp.host", "smtp.gmail.com");
props.put("mail.smtp.socketFactory.port", "465");
props.put("mail.smtp.socketFactory.class",
"javax.net.ssl.SSLSocketFactory");
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.port", "465");
Authenticator auth = new Authenticator() {
@Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication("[email protected]","gmailPassword");
}
};
Session session = Session.getDefaultInstance(props,auth);
try {
Message message = new MimeMessage(session);
Address sender = new InternetAddress("any@...");
message.setFrom(sender);
String recipients = "email1@...,email2@...,email2@...";
String[] toList = recipients.split(",");
System.out.println(toList.length);
Address[] addressTo = new InternetAddress[toList.length];
for(int i = 0; i < toList.length; i++){
addressTo[i] = new InternetAddress(toList[i]);
}
for( int i=0; i < addressTo.length; i++) { // changed from a while loop
message.addRecipient(Message.RecipientType.TO, addressTo[i]);
}
message.setSubject("Testing Subject 5");
message.setText("Dear Message ," +
"\n\n HELLO, please! \n https://192.168.192.120:8181/centralWeb");
System.out.println("SENDING MAIL......... " + new Date().toString());
message.setHeader("Content-type", "text/html; charset=UTF-8");
Transport.send(message);
System.out.println("Done " + new Date().toString());
} catch (MessagingException e) {
throw new RuntimeException(e);
}
}
}
NetBeans Output:
NetBeans 输出：
1
SENDING MAIL......... Sun Apr 28 01:30:18 IST 2013
Exception in thread "main" java.lang.RuntimeException: javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 465;
nested exception is:
java.net.SocketException: Connection reset
at sendmailssl.SendMailSSL.main(SendMailSSL.java:65)
Caused by: javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 465;
nested exception is:
java.net.SocketException: Connection reset
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1706)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:525)
at javax.mail.Service.connect(Service.java:313)
at javax.mail.Service.connect(Service.java:172)
at javax.mail.Service.connect(Service.java:121)
at javax.mail.Transport.send0(Transport.java:190)
at javax.mail.Transport.send(Transport.java:120)
at sendmailssl.SendMailSSL.main(SendMailSSL.java:60)
Caused by: java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(SocketInputStream.java:189)
at java.net.SocketInputStream.read(SocketInputStream.java:121)
at sun.security.ssl.InputRecord.readFully(InputRecord.java:312)
at sun.security.ssl.InputRecord.read(InputRecord.java:350)
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:927)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1328)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1355)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1339)
at com.sun.mail.util.SocketFetcher.configureSSLSocket(SocketFetcher.java:503)
at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:234)
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1672)
... 7 more
Java Result: 1
BUILD SUCCESSFUL (total time: 2 seconds)
I've tried disabling IPv6 and turning off my firewall too, but the problem persists. I am using Windows 7 x64, if that matters.
我试过禁用 IPv6 并关闭我的防火墙，但问题仍然存在。如果这很重要，我正在使用 Windows 7 x64。
Thanks to anyone who can help me fix this issue.
感谢任何可以帮助我解决此问题的人。
回答by Bill Shannon
Try these debugging tips from the JavaMail FAQ:
试试 JavaMail 常见问题中的这些调试技巧：
- How do I debug my application that uses JavaMail APIs?
- How do I debug problems connecting to my mail server?
Also, you might want to correct these common mistakes, although I don't think they're related to your problem.
此外，您可能希望更正这些常见错误，尽管我认为它们与您的问题无关。
