java邮件发送和群发邮件
java邮件发送
?
//邮件发送服务器
private static String HOST = "smtp.163.com";
//默认发送邮件 地址，用户名，密码
??private static String FROM = "****@163.com";
?private static String USERNAME = "*****";
?private static String PASSWORD = "****";
//发送都采用smtp
? TRANSPORT = "smtp";
?
// 邮件发送器
?public static boolean sysEmail(String link, String to) throws IOException {
??boolean success = false;
??try {
???Properties props = new Properties();
???props.put("mail.smtp.host", HOST);
???props.put("mail.smtp.auth", "true");
???Session mailSession = Session.getDefaultInstance(props, null);
???// MimeMessage message = new MimeMessage(session);
???mailSession.setDebug(true);
???Multipart mp = new MimeMultipart();
???MimeBodyPart mbp = new MimeBodyPart();
???// 将邮件内容以HTML的方式发送
???mbp.setContent(link, "text/html;charset=UTF-8");
???mp.addBodyPart(mbp);
???MimeMessage message = new MimeMessage(mailSession);
???message.setFrom(new InternetAddress(FROM));
???message.addRecipient(Message.RecipientType.TO, new InternetAddress(
?????to));
???// message.addRecipients(Message.RecipientType.BCC, to);
???// System.out.println(props.getProperty(EMAIL_USERNAME));
???message.setSubject(EmailList.SUBJECT,"UTF-8");
???message.setContent(mp);
???message.saveChanges();
???Transport transport = mailSession.getTransport(TRANSPORT);
???transport.connect(HOST, USERNAME, PASSWORD);
???transport.sendMessage(message, message.getAllRecipients());
???transport.close();
???success = true;
??} catch (MessagingException e) {
???e.printStackTrace();
???success = false;
??}
??return success;
?}
?
?
?
?
群发的时候
message.addRecipients(Message.RecipientType.BCC, to);
to ="";邮件列表之间用逗号分割
可能发过多造成邮件发送不成功，此时考虑使用线程
?
?
有时候邮件显示发送成功，但在邮箱里边收不到，
有可能就是默认发送地址的问题，你把邮件默认发送地址改一下试试。
?
