需要使Javamail对gmail认证更安全 [英] Need to make Javamail more secure for gmail authentication

问题描述

我编写了一个用于从java（javamail / jaf）发送简单邮件的代码。在我运行该程序后，我收到了一封来自Google的电子邮件，表示我的帐户正在被不安全的设备/应用程序访问。然后，我必须更改我的Gmail帐户的设置，以允许登录不太安全的应用程序选项。然后我收到了我的电子邮件。

我需要发送电子邮件，而不必在我的帐户中更改选项，选择安全性较低的应用程序选项。

我的代码是：

  import java.util的.properties; 
 import javax.mail.Message; 
 import javax.mail.MessagingException; 
 import javax.mail.PasswordAuthentication; 
导入javax.mail.Session; 
 import javax.mail.Transport; 
 import javax.mail.internet.InternetAddress; 
 import javax.mail.internet.MimeMessage; 
 
 public class SendMailSSL {
 public static void main（String [] args）{
属性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（* **** @ gmail.com，*******）; 
} 
}）; 
 
 try {
 
 Message message = new MimeMessage（session）; 
 message.setFrom（new InternetAddress（***** @ gmail.com））; 
 message.setRecipients（Message.RecipientType.TO，
 InternetAddress.parse（***** @ gmail.com））; 
 message.setSubject（测试主题）; 
 message.setText（尊敬的用户，+ 
\\\
\\\
请勿将垃圾邮件发送至我的电子邮件！）; 
 
 Transport.send（message）; 
 
 System.out.println（完成）; 
 
 catch（MessagingException e）{
抛出新的RuntimeException（e）; 
 
 
 
  

解决方案

避免使用Gmail的唯一方法是使用OAuth 2.0身份验证。你可以通过这个链接了解它。 https://developers.google.com/gmail/xoauth2_protocol?hl=zh_CN

I have written a code for sending a simple mail from java(javamail/jaf). after I run the program I got an email from google that my account is being accessed by unsecured device/app. Then I had to change the settings of my gmail account to allow login for "less secure apps" option. Then I received my email from the program.

I need to send email without changing the option allow "less secure apps" option in my account. Please help.

My code is:

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 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");

        Session session = Session.getDefaultInstance(props,
            new javax.mail.Authenticator() {
                protected PasswordAuthentication getPasswordAuthentication() {
                    return new PasswordAuthentication("*****@gmail.com","*******");
                }
            });

        try {

            Message message = new MimeMessage(session);
            message.setFrom(new InternetAddress("*****@gmail.com"));
            message.setRecipients(Message.RecipientType.TO,
                    InternetAddress.parse("*****@gmail.com"));
            message.setSubject("Testing Subject");
            message.setText("Dear User," +
                    "\n\n No spam to my email, please!");

            Transport.send(message);

            System.out.println("Done");

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

解决方案

The only way to avoid this for Gmail is to use OAuth 2.0 authentication. You can read about it through this link. https://developers.google.com/gmail/xoauth2_protocol?hl=en

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