javaMail邮件发送功能(多收件人,多抄送人,多密送人,多附件)

private Session session;
   private Transport transport;

   private String mailHost = "";
   private String sender_username = "";
   private String sender_password = "";
   private String contentPart_Type = "";

   private Properties properties = new Properties();

   /*
    * 初始化方法
    */
   public JavaMailWithAttachment() {
       try {
        FileInputStream is=new FileInputStream("E:/workspace1.6/ICRM-H5/src/mailServer.properties");
           properties.load(is);
           this.mailHost = properties.getProperty("mail.smtp.host");
           this.sender_username = properties.getProperty("mail.sender.username");
           this.sender_password = properties.getProperty("mail.sender.password");
           this.contentPart_Type = properties.getProperty("mail.contentPart.type");
       } catch (IOException e) {
           e.printStackTrace();
       }

       session = Session.getInstance(properties);
       session.setDebug(true); //开启后有调试信息,发布时关闭
       message = new MimeMessage(session);
   }


   /**
    * 发送邮件
    * @param subject
    *               邮件主题
    * @param sendHtml
    *               邮件内容
    * @param toUser
    *               收件人  多个时参数形式  ：  "xxx@xxx.com,xxx@xxx.com,xxx@xxx.com"
    * @param ccUser
    *               抄送人   同上
    * @param bccUser
    *               密送人   同上
    * @param attachment
    *               附件
    */
public void doSendHtmlEmail(String subject, String sendHtml,
        String  toUser, String ccUser, String bccUser, File [] attachment){
    try {
        // 发件人
           InternetAddress from = new InternetAddress(sender_username);
           message.setFrom(from);

           // 设置多个收件人地址
           if(null != toUser && !toUser.isEmpty()){
            @SuppressWarnings("static-access")
            InternetAddress[] internetAddressTo = new InternetAddress().parse(toUser);
            message.setRecipients(Message.RecipientType.TO, internetAddressTo);
           }

           // 设置多个抄送地址
           if(null != ccUser && !ccUser.isEmpty()){
            @SuppressWarnings("static-access")
            InternetAddress[] internetAddressCC = new InternetAddress().parse(ccUser);
            message.setRecipients(Message.RecipientType.CC, internetAddressCC);
           }

           // 设置多个密送地址
           if(null != bccUser && !bccUser.isEmpty()){
            @SuppressWarnings("static-access")
            InternetAddress[] internetAddressBCC = new InternetAddress().parse(bccUser);
            message.setRecipients(Message.RecipientType.BCC, internetAddressBCC);
           }

           // 发送日期
           message.setSentDate(new Date());

           // 邮件主题
           message.setSubject(subject);

           // 向multipart对象中添加邮件的各个部分内容，包括文本内容和附件
           Multipart multipart = new MimeMultipart();

           // 添加邮件正文
           BodyPart contentPart = new MimeBodyPart();
           contentPart.setContent(sendHtml, contentPart_Type);
           multipart.addBodyPart(contentPart);

           BodyPart attachmentBodyPart = null;
           // 添加附件的内容
           if (null != attachment && attachment.length != 0) {
            for (File file : attachment) {
                attachmentBodyPart = new MimeBodyPart();

                DataSource source = new FileDataSource(file);
                attachmentBodyPart.setDataHandler(new DataHandler(source));
                //MimeUtility.encodeWord可以避免文件名乱码
                   attachmentBodyPart.setFileName(MimeUtility.encodeWord(file.getName()));
                   multipart.addBodyPart(attachmentBodyPart);
            }
           }

           // 将multipart对象放到message中
           message.setContent(multipart);

           // 保存邮件
           message.saveChanges();

           // smtp验证
           transport = session.getTransport("smtp");
           transport.connect(mailHost, sender_username, sender_password);

           // 发送
           transport.sendMessage(message, message.getAllRecipients());
           System.out.println("发送成功！");
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (transport != null) {
               try {
                   transport.close();
               } catch (MessagingException e) {
                   e.printStackTrace();
               }
           }
    }
   }