java TLS发送电子邮件 [英] java TLS Sending Email

问题描述

import javax.mail.*;
import javax.mail.Message;
import java.util.*;
import javax.mail.internet.*;
 
public class Sendemail {
 
    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
            final String username="username";
            final String password="password";
            Properties prop=new Properties();
            prop.put("mail.smtp.auth", "true");
            prop.put("mail.smtp.host", "smtp.gmail.com");
            prop.put("mail.smtp.port", "587");
            prop.put("mail.smtp.starttls.enable", "true");
        
            Session session = Session.getDefaultInstance(prop,
		  new javax.mail.Authenticator() {
			protected PasswordAuthentication getPasswordAuthentication() {
				return new PasswordAuthentication(username, password);
			}
		  });
          try {
 
			Message message = new MimeMessage(session);
			message.setFrom(new InternetAddress("[e-mail]"));
			message.setRecipients(Message.RecipientType.TO,
				InternetAddress.parse("[e-mail]"));
			message.setSubject("Testing Subject");
			message.setText("Dear Mail Crawler,sNo spam to my email, please!");
                       
			Transport.send(message);
 
			System.out.println("Done");
 
		} catch (MessagingException e) {
			e.printStackTrace();
		}
            
    }
}
 

 

Please Help Someone..
    I have Exception On this code
 
javax.mail.MessagingException: 502 5.5.1 Unrecognized command. nw9sm29708787pbb.42
 
	at com.sun.mail.smtp.SMTPTransport.issueCommand(SMTPTransport.java:2080)
	at com.sun.mail.smtp.SMTPTransport.startTLS(SMTPTransport.java:1910)
	at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:652)
	at javax.mail.Service.connect(Service.java:317)
	at javax.mail.Service.connect(Service.java:176)
	at javax.mail.Service.connect(Service.java:125)
	at javax.mail.Transport.send0(Transport.java:194)
	at javax.mail.Transport.send(Transport.java:124)
	at sendemail.Sendemail.main(Sendemail.java:44)

推荐答案

你好



关于使用Gmail帐户发送电子邮件，你可以参考流动的代码（使用TLS连接）：

Hello

About sending email using Gmail account, you can refer the flowing code (using TLS connection):

import java.util.Properties;
 
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
 
public class SendEmailDemo {
 
	public static void main(String[] args) {
 
		final String username = "[e-mail]";
		final String password = "password";
 
		Properties props = new Properties();
		props.put("mail.smtp.auth", "true");
		props.put("mail.smtp.starttls.enable", "true");
		props.put("mail.smtp.host", "smtp.gmail.com");
		props.put("mail.smtp.port", "587");
 
		Session session = Session.getInstance(props,
		  new javax.mail.Authenticator() {
			protected PasswordAuthentication getPasswordAuthentication() {
				return new PasswordAuthentication(username, password);
			}
		  });
 
		try {
 
			Message message = new MimeMessage(session);
			message.setFrom(new InternetAddress("[e-mail]"));
			message.setRecipients(Message.RecipientType.TO,
				InternetAddress.parse("[e-mail]"));
			message.setSubject("Testing Subject");
			message.setText("Dear Mail Crawler,"
				+ "\n\n No spam to my email, please!");
 
			Transport.send(message);
 
			System.out.println("Done");
 
		} catch (MessagingException e) {
			throw new RuntimeException(e);
		}
	}
}

或者，如果您想通过Gmail SMTP发送电子邮件服务器使用SSL连接，试试这个：

Or, if you want to send an Email via Gmail SMTP server using SSL connection, try this:

import java.util.Properties;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

public class SendEmailDemo {
	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");

		Session session = Session.getDefaultInstance(props,
				new javax.mail.Authenticator() {
					protected PasswordAuthentication getPasswordAuthentication() {
						return new PasswordAuthentication("username",
								"password");
					}
				});

		try {

			Message message = new MimeMessage(session);
			message.setFrom(new InternetAddress("[e-mail]"));
			message.setRecipients(Message.RecipientType.TO,
					InternetAddress.parse("[e-mail]"));
			message.setSubject("Testing");
			message.setText("Mail content");

			Transport.send(message);

			System.out.println("Sent");

		} catch (MessagingException e) {
			throw new RuntimeException(e);
		}
	}
}

我已经对它们进行了测试。他们没事。

希望这些代码片段可以帮到你。

I''ve tested both of them. They''re ok.
Hope those code snippets can help you.

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