JavaMail实现发送邮件功能

2019-11-26 11:34:59

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本文实例为大家分享了JavaMail实现发送邮件功能的具体代码，供大家参考，具体内容如下

用java发邮件，必须要导入新的包

mail.jar 发邮件的核心包

activation.jar 对用户和密码加密.

在mail.jar中有三个核心类：

Javax.mail.Session 是指与邮件服务器会话。整个项目中只要一个就可以了.

Javax.mail.Message（接口） - 准备发送数据信息。

MimeMessage －可以设置类型的数据信息。

Transport 它拥有一个方法可以发送Message。

@Test public void sendMail() throws Exception{  //1,声明properties对象放信息  Properties props = new Properties();  //设置连接哪一台服务器  props.setProperty("mail.host", "smtp.163.com");  //设置是否认证：  props.setProperty("mail.smtp.auth", "true");    //2，声明用户名和密码  Authenticator auth = new Authenticator(){   //返回用户名和密码对象   @Override   protected PasswordAuthentication getPasswordAuthentication() {    PasswordAuthentication pa = new PasswordAuthentication("xxxxx@163.com", "123456");    return pa;   }  };  //3,获取session对象  Session session = Session.getDefaultInstance(props, auth);  //设置session为调试模式  session.setDebug(true);  //4,声明信息  MimeMessage mm1 = new MimeMessage(session);  //5,设置发件人信息  Address form = new InternetAddress("xxxxx@163.com");   mm1.setFrom(form);  //6,设置收件人 ,RecipientType:发送，抄送，密送 类型  mm1.setRecipient(RecipientType.TO, new InternetAddress("xxx@qq.com"));  //mm1.setRecipient(RecipientType.CC, new InternetAddress(""));//抄送   //7，设置主题  mm1.setSubject("拉面学习通知");  String cont = "请点击 <a href='http://www.fsy158.com/news/31_207'>官网新闻</a>查看祝您发财";  mm1.setContent(cont, "text/html;charset=UTF-8");    //8，发送  Transport.send(mm1);  }

其中的mimeType可是text/plain纯文本。

发送附件：

@Test public void sendMailWithFile() throws Exception{ Properties ps = new Properties(); ps.setProperty("mail.host", "smtp.163.com"); ps.setProperty("mail.smtp.auth", "true");  Authenticator auth = new Authenticator(){  @Override  protected PasswordAuthentication getPasswordAuthentication() {  return new PasswordAuthentication("xxx@163.com","xxx.");  }  }; Session session = Session.getDefaultInstance(ps, auth); session.setDebug(true); MimeMessage msg = new MimeMessage(session); Address address = new InternetAddress("xxx@163.com"); msg.setFrom(address); //发送给 msg.setRecipient(RecipientType.TO, new InternetAddress("xxx@qq.com")); msg.setRecipient(RecipientType.BCC, new InternetAddress("xxx@qq.com"));//密送 msg.setRecipient(RecipientType.CC, new InternetAddress("xxx@qq.com"));//抄送 msg.setSubject("$激情小视频*免费观看");  //声明多部件处理 MimeMultipart mm = new MimeMultipart();  MimeBodyPart body1 = new MimeBodyPart(); //设置附件 DataSource ds1 = new FileDataSource(new File("./img/a.jpg")); DataHandler dh1 = new DataHandler(ds1); body1.setDataHandler(dh1); //必须设置名称 body1.setFileName(MimeUtility.encodeText("美女.jpg"));  MimeBodyPart body2 = new MimeBodyPart(); DataSource ds2 = new FileDataSource(new File("./img/b.jpg")); DataHandler dh2 = new DataHandler(ds2); body2.setDataHandler(dh2); body2.setFileName(MimeUtility.encodeText("美女2.jpg"));  MimeBodyPart body3 = new MimeBodyPart(); DataSource ds3 = new FileDataSource(new File("./img/m.mp3")); DataHandler dh3 = new DataHandler(ds3); body3.setDataHandler(dh3); body3.setFileName(MimeUtility.encodeText("小电影.mp3")); //添加body到mm mm.addBodyPart(body1); mm.addBodyPart(body2); mm.addBodyPart(body3);  msg.setContent(mm); //设置发送日期 Calendar c = Calendar.getInstance(); c.add(Calendar.DATE, -5); msg.setSentDate(c.getTime()); //发送 Transport.send(msg); }