JavaMail消息传递异常
我编写了一个使用JavaMail API发送Gmail的程序。以下是我的代码:JavaMail消息传递异常,java,jakarta-mail,Java,Jakarta Mail,我编写了一个使用JavaMail API发送Gmail的程序。以下是我的代码: import java.util.*; import javax.mail.*; import javax.activation.*; import javax.mail.internet.*; import javax.mail.Session; import javax.mail.Transport; class emailSend{ public static void main(String[] a
import java.util.*;
import javax.mail.*;
import javax.activation.*;
import javax.mail.internet.*;
import javax.mail.Session;
import javax.mail.Transport;
class emailSend{
public static void main(String[] args) {
String recipient = "receiver@gmail.com";
String sender = "sender@gmail.com";
String host = "smtp.gmail.com";
Properties props = System.getProperties();
props.put("mail.smtp.host",host);
props.put("mail.smtp.user", sender);
props.put("mail.smtp.password", "password");
props.put("mail.smtp.port", "465");
props.put("mail.smtp.auth", "true");
Session session = Session.getDefaultInstance(props);
try
{
MimeMessage message = new MimeMessage(session);
message.setFrom(new InternetAddress(sender));
message.addRecipient(Message.RecipientType.TO, new InternetAddress(recipient));
message.setSubject("This is the subject");
message.setText("This the message");
Transport transport = session.getTransport("smtp");
transport.connect("smtp.gmail.com",465,"sender01@gmail.com", "password");
transport.sendMessage(message, message.getAllRecipients());
System.out.println("Mail successfully sent");
}
catch(Exception e)
{
e.printStackTrace();
}
}
}
但我得到了以下错误:
javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 465, response: -1
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2197)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:740)
at javax.mail.Service.connect(Service.java:366)
at emailSend.main(emailSend.java:29)
我试图禁用防火墙,但没有用。
我该怎么办 添加属性:
props.put("mail.smtp.socketFactory.port", "465");
props.put("mail.smtp.ssl.checkserveridentity", "true");
props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
props.put("mail.debug", "true");
props.put("mail.smtp.EnableSSL.enable", "true");
props.put("mail.smtp.socketFactory.fallback", "false");
您需要配置您的Gmail帐户安全性,以允许它从您的应用程序发送电子邮件 这是我的工作代码
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");
//get Session
Session session = Session.getDefaultInstance(props,
new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication( from, password);
}
});
//compose message
try {
MimeMessage message = new MimeMessage(session);
message.addRecipient(Message.RecipientType.TO,new InternetAddress(recepient));
message.setSubject(subject);
BodyPart messageBodyPart = new MimeBodyPart();
messageBodyPart.setContent(msg, "text/html");
Multipart multipart = new MimeMultipart();
multipart.addBodyPart(messageBodyPart);
messageBodyPart = new MimeBodyPart();
DataSource source = new FileDataSource(filename);
messageBodyPart.setDataHandler(new DataHandler(source));
messageBodyPart.setFileName(filename);
multipart.addBodyPart(messageBodyPart);
message.setContent(multipart);
Transport.send(message);
} catch (MessagingException e) {throw new RuntimeException(e);}