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();  

               }  

           }  

    }  

   }