利用java mail发送邮件

import java.util.Properties; import javax.activation.DataHandler; import javax.activation.FileDataSource; import javax.mail.Authenticator; import javax.mail.Message; import javax.mail.MessagingException; import javax.mail.Multipart; import javax.mail.PasswordAuthentication; import javax.mail.Session; import javax.mail.Transport; import javax.mail.internet.InternetAddress; import javax.mail.internet.MimeBodyPart; import javax.mail.internet.MimeMessage; import javax.mail.internet.MimeMultipart; public class demo { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub Properties props = new Properties(); props.put("mail.smtp.host","smtp.qq.com"); props.put("mail.smtp.auth", "true"); // 指定是否需要SMTP验证 Session session = Session.getDefaultInstance(props //以匿名内部类的形式创建登录服务器的认证对象 , new Authenticator() { public PasswordAuthentication getPasswordAuthentication() { return new PasswordAuthentication("717608039@qq.com","justdoit@qq"); } }); try { MimeMessage msg = new MimeMessage(session); msg.setFrom("717608039@qq.com"); msg.setSubject("JavaMail hello world example"); msg.setSentDate(new Date()); InternetAddress[] addresses = {new InternetAddress("289495433@qq.com")}; msg.setRecipients(Message.RecipientType.TO , addresses); msg.setText("Hello, world! "); Multipart mp = new MimeMultipart(); //向Multipart添加正文 MimeBodyPart mbpContent = new MimeBodyPart(); mbpContent.setText("hello"); //将BodyPart添加到MultiPart中 mp.addBodyPart(mbpContent); MimeBodyPart mbpFile = new MimeBodyPart(); //以文件名创建FileDataSource对象 FileDataSource fds = new FileDataSource("D://002.jpg"); //处理附件 mbpFile.setDataHandler(new DataHandler(fds)); mbpFile.setFileName(fds.getName()); //将BodyPart添加到MultiPart中 mp.addBodyPart(mbpFile); msg.setContent(mp); Transport.send(msg); } catch (MessagingException mex) { System.out.println("send failed, exception: " + mex); } } }