Java 发送QQ邮件


1. 安装jdk,配置好环境变量


2. 安装 JavaMail API 和 Java Activation Framework(JAF)


3. QQ设置,生成授权码


4. 程序完整代码

  • SendQQEmail.java
  • 使用第三方邮件服务器——QQ的SMTP服务器
import java.security.GeneralSecurityException;
import java.util.Properties;
import javax.mail.Authenticator;
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;
import com.sun.mail.util.MailSSLSocketFactory;

public class SendQQEmail
{
    public static void main(String [] args) throws GeneralSecurityException 
    {
        // 收件人邮箱,不仅仅QQ邮箱
        String to = "[email protected]";

        // 发件人电子邮箱,你生成授权码的QQ邮箱
        String from = "[email protected]";

        // 指定发送邮件的主机为 smtp.qq.com
        String host = "smtp.qq.com";  //QQ 邮件服务器

        // 获取系统属性
        Properties properties = System.getProperties();

        // 设置邮件服务器
        properties.setProperty("mail.smtp.host", host);

        properties.put("mail.smtp.auth", "true");
        MailSSLSocketFactory sf = new MailSSLSocketFactory();
        sf.setTrustAllHosts(true);
        properties.put("mail.smtp.ssl.enable", "true");
        properties.put("mail.smtp.ssl.socketFactory", sf);
        // 获取默认session对象
        Session session = Session.getDefaultInstance(properties, new Authenticator(){
            public PasswordAuthentication getPasswordAuthentication()
            {
                return new PasswordAuthentication("[email protected]", "xxxxxxxxxxxxx"); //登录邮箱及授权码
            }
        });

        try{
            // 创建默认的 MimeMessage 对象
            MimeMessage message = new MimeMessage(session);

            // Set From: 头部头字段
            message.setFrom(new InternetAddress(from));

            // Set To: 头部头字段
            message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));

            // Set Subject: 头部头字段
            message.setSubject("This is the Subject Line!");

            // 设置消息体
            message.setText("This is actual message");

            // 发送消息
            Transport.send(message);
            System.out.println("Sent message successfully");
        }catch (MessagingException mex) {
            mex.printStackTrace();
        }
    }
}
  • 编译执行
  • 命令行
  • 说明
    • 如果收件箱不存在,则QQ邮箱收到退回邮件
    • 如果收件箱存在,QQ邮箱发送成功,但是只有收件箱查得到邮件
    • 亲测,163邮箱、Gmail邮箱都能收到QQ邮箱发送的邮件

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转载自blog.csdn.net/shu_ze/article/details/80328219