使用java简单实现基于smtp协议的邮件收发

import java.util.Properties; import javax.mail.*; import javax.mail.internet.*; public class MailExample { public static void main (String args[]) throws Exception { String host = "smtp.126.com"; //发件人使用发邮件的电子信箱服务器 String from = "你的邮箱地址"; //发邮件的出发地（发件人的信箱） String to = "收件人的邮箱地址"; //发邮件的目的地（收件人信箱） // Get system properties Properties props = System.getProperties(); // Setup mail server props.put("mail.smtp.host", host); // Get session props.put("mail.smtp.auth", "true"); //这样才能通过验证 MyAuthenticator myauth = new MyAuthenticator("你的邮箱地址", "密码"); Session session = Session.getDefaultInstance(props, myauth); // session.setDebug(true); // Define message MimeMessage message = new MimeMessage(session); // Set the from address message.setFrom(new InternetAddress(from)); // Set the to address message.addRecipient(Message.RecipientType.TO, new InternetAddress(to)); // Set the subject message.setSubject("测试程序！"); // Set the content message.setText("这是用java写的发送电子邮件的测试程序！"); message.saveChanges(); Transport.send(message); } }