java发送邮件

java Mail 邮件群发 带多附件2009年07月21日 星期二 09:26public void sendMail(MailBean mail) throws AddressException,
MessagingException, UnsupportedEncodingException {
//stmp主机地址
String stmp_host = mail.getStmp_host();
//群发 mail数组 接收者
String[] tomails = mail.getToMails();
//附件名数组
String[] uploadFileName = mail.getUploadFileName();
//附件数组
File[] upload = mail.getUpload();
//显示发件人的名字
String show_name = mail.getShow_name();
//回复邮箱地址也就是显示发送者地址
String recipient_email = mail.getRecipient_email();
//正确邮件列表
LinkedList<String> right_mailList = new LinkedList<String>();
//错误邮件列表
LinkedList<String> error_mailList = new LinkedList<String>();
//验证邮箱的正则表达式
java.util.regex.Pattern par = Pattern
.compile("^//w+([-+.]//w+)*@//w+([-.]//w+)*//.//w+([-.]//w+)*$");
if (par.matcher(recipient_email).matches()) {
//验证邮件列表
for (int i = 0; i < tomails.length; i++) {
String mailtmp = tomails[i];
if (par.matcher(mailtmp).matches()) {
right_mailList.add(mailtmp);
} else {
error_mailList.add(mailtmp);
}
}
if (right_mailList.size()>0) {
LinkedList<File> attachlist = new LinkedList<File>();
if (upload != null) {
for (int i = 0; i < upload.length; i++) {
File file = upload[i];
if (file != null) {
attachlist.add(file);
}
}
}
MimeMessage message;
InternetAddress[] address = new InternetAddress[right_mailList
.size()];
for (int i = 0; i < address.length; i++) {
address[i] = new InternetAddress(right_mailList.get(i));
}
Properties props = new Properties();
props.put("mail.smtp.host", stmp_host);
props.put("mail.smtp.auth", "true");
Session session = Session.getDefaultInstance(props, null);
message = new MimeMessage(session);
if (show_name == null || show_name.equals("")) {
message.setFrom(new InternetAddress(recipient_email));
} else {
message.setFrom(new InternetAddress(recipient_email,
show_name));
}
message.setRecipients(Message.RecipientType.TO, address);
message.setSubject(mail.getSubject());
message.setSentDate(mail.getSendDate());
// 新建一个mimemultipart对象用来存放bodypart对象(事实上可以存放多个)
MimeMultipart mm = new MimeMultipart();
// 新建一个存放信件内容的bodypart对象
BodyPart mdp = new MimeBodyPart();
// 给bodypart对象设置内容和格式/编码方式
mdp.setContent(mail.getContent(), mail.getContentType());
mm.addBodyPart(mdp);
// add the attachments
for (int i = 0; i < attachlist.size(); i++) {
// 新建一个存放附件的bodypart
BodyPart bodyPart = new MimeBodyPart();
FileDataSource fileDS = new FileDataSource(attachlist
.get(i));
DataHandler dh = new DataHandler(fileDS);
bodyPart.setDataHandler(dh);
// 加上这句将作为附件发送,否则将作为信件的文本内容
bodyPart.setFileName(uploadFileName[i].toString());
bodyPart.setDisposition(Part.ATTACHMENT);
// mdp.setHeader("name", uploadFileName[i].toString());
bodyPart.setHeader("Content-Type",
"application/octet-stream;name="
+ uploadFileName[i].toString());
bodyPart.setHeader("X-Attachment-Id", uploadFileName[i]
.toString());
// 将含有附件的bodypart加入到mimemultipart对象中
mm.addBodyPart(bodyPart);
}
// 把mm作为消息对象的内容
message.setContent(mm);
message.saveChanges();
try {
javax.mail.Transport transport = session
.getTransport("smtp");
transport.connect(stmp_host, mail.getStmp_username(), mail
.getStmp_password());
transport.sendMessage(message, message.getAllRecipients());
transport.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}