javax.mail.SendFailedException为什么我在尝试通过java代码发送电子邮件时收到上述表达式?
我想编写一个java程序,从我的电子邮件地址向任何电子邮件地址发送电子邮件,但当我运行代码时,我得到了javax.mail.SendFailedException。我的代码有两个类Main.java和EmailManagement.java。 我收到的错误有:javax.mail.SendFailedException为什么我在尝试通过java代码发送电子邮件时收到上述表达式?,java,jakarta-mail,ninjaframework,Java,Jakarta Mail,Ninjaframework,我想编写一个java程序,从我的电子邮件地址向任何电子邮件地址发送电子邮件,但当我运行代码时,我得到了javax.mail.SendFailedException。我的代码有两个类Main.java和EmailManagement.java。 我收到的错误有: javax.mail.SendFailedException: Sending failed; nested exception is: javax.mail.MessagingException: Could not co
javax.mail.SendFailedException: Sending failed;
nested exception is:
javax.mail.MessagingException: Could not connect to SMTP host: localhost, port: 25;
nested exception is:
java.net.ConnectException: Connection refused: connect
at javax.mail.Transport.send0(Transport.java:219)
at javax.mail.Transport.send(Transport.java:81)
at EmailManagement.sendEmailToOnePlayer(EmailManagement.java:43)
at Main.main(Main.java:14)
代码如下
导入javax.swing.JOptionPane
public class Main {
public static void main(String[] args) {
EmailManagement objEmail = new EmailManagement();
String senderEmailId = JOptionPane.showInputDialog("ENter sender email id");
String recieverEmailId = JOptionPane.showInputDialog("Enter reciever Email id");
String subjectOfEmail = JOptionPane.showInputDialog("Enter email subject");
String textOfEmail = JOptionPane.showInputDialog("Enter text Of mail");
objEmail.sendEmailToOnePlayer(senderEmailId, recieverEmailId, subjectOfEmail, textOfEmail);
//System.out.println(senderEmailId);
}
}
import java.util.*;
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;
public class EmailManagement {
public void sendEmailToOnePlayer(String senderEmailId, String recieverEmailId , String subjectOfEmail , String textOfEmail ){
//using localhost for sending email
String host ="localhost";
//to get the system properties
Properties properties = System.getProperties();
//now to setup the mail server
properties.setProperty("mail.smtp.host", host);
//now to get our default session object
Session session =Session.getDefaultInstance(properties);
//now to create default Mime message
MimeMessage message = new MimeMessage(session);
try {
//now to set the sender email address
message.setFrom(new InternetAddress(senderEmailId));
//now set reciever email address
message.addRecipient(Message.RecipientType.TO, new InternetAddress(recieverEmailId));
//set the subject of email to be sent
message.setSubject(subjectOfEmail);
//actual message text of email
message.setText(textOfEmail);
//send message to required recipient
Transport.send(message);
System.out.println("email sent successfully :) ");
} catch (AddressException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (MessagingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
您没有在
localhost:25上运行SMTP服务器。
确实,您没有在该主机:端口上运行任何类型的TCP服务器。您的本地计算机上运行SMTP服务器吗?请给我们一个示例,并校对您的问题,使其清晰易读。如果您不介意,因为我是新手,如何检查SMTP服务器是否在我的计算机上运行本地机器?@QPaysTaxes你能告诉我是什么吗MCVE@AbdullahJahangirAbbasi点击这个词。这是一个秘密链接。请告诉我如何连接到一个确实存在的SMTP服务器。不要让我告诉你IP:端口。这是你的系统:没有人能告诉你。