利用Jmail发带附件的邮件

package com.sidiw.util.jmail;

import java.util.Date;
import java.util.HashMap;
import java.util.Map;

import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import javax.mail.internet.MimeMessage.RecipientType;

import sun.misc.BASE64Encoder;

public class SendMail {
    /** 文本编码 */
    private String encode;

    /** 文本还是html内容 */
    private boolean HTML;

    private Session session;

    private Transport transport;

    private BASE64Encoder enc = new sun.misc.BASE64Encoder();

    public SendMail() {
        this.encode = "GBK";
        this.HTML = true;
    }

    public SendMail(String encode, boolean html) {
        this.encode = encode;
        this.HTML = html;
    }

    public boolean connect(String smtpHost, String uid, String pwd) {
        boolean result = false;

        ConnectMail connect = new ConnectMail();
        result = connect.connectSmtp(smtpHost, uid, pwd);
        this.session = connect.getSession();
        this.transport = connect.getTransport();

        return result;
    }

    public void close() {
        if (this.transport != null) {
            try {
                this.transport.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

    public void send(Map outerMailInfo) {
        try {
            /** 文件附件编码 */
            //setFileName(MimeUtility.encodeText(fileName, "GBK"));
            /** 文件主题编码 */
            //msg.setSubject("=?GB2312?B?"+enc.encode(subject.getBytes())+"?=");
            String title = "=?"
                    + this.encode
                    + "?B?"
                    + enc.encode(((String) outerMailInfo.get("strTitle"))
                            .getBytes()) + "?=";

            MimeMessage mimeMessage = createMimeMessage(((String) outerMailInfo
                    .get("strFromName")), ((String) outerMailInfo
                    .get("strFrom")), ((String) outerMailInfo.get("strTo")),
                    ((String) outerMailInfo.get("strCc")),
                    ((String) outerMailInfo.get("strBclearcase/" target="_blank" >cc")), title,
                    ((String) outerMailInfo.get("strContent")),
                    ((String[]) outerMailInfo.get("strFileNameList"))//outerMailInfo.getStrFileNameList()
            );
            transport.sendMessage(mimeMessage, mimeMessage.getAllRecipients());
        } catch (MessagingException e) {
            e.printStackTrace();
        }
    }

    private MimeMessage createMimeMessage(String fromName, String from,
            String to, String cc, String bcc, String subject, String text,
            String[] filename) throws MessagingException {

        /** 加入调试信息 */
        session.setDebug(true);

        MimeMessage message = new MimeMessage(session);
        InternetAddress fromAddress = new InternetAddress(from);
        try {
            if (fromName != null)
                fromAddress.setPersonal(fromName);
        } catch (Exception e) {
        }
        message.setFrom(fromAddress);

        InternetAddress[] toAddress = InternetAddress.parse(to);
        InternetAddress[] ccAddress = InternetAddress.parse(cc);
        InternetAddress[] bccAddress = InternetAddress.parse(bcc);

        message.setRecipients(RecipientType.TO, toAddress);
        message.setRecipients(RecipientType.CC, ccAddress);
        message.setRecipients(RecipientType.BCC, bccAddress);

        message.setSentDate(new Date());

        message.setSubject(subject, this.encode);
        /** 处理附件 */
        if (filename != null && filename.length > 0) {
            Multipart multipart = new MimeMultipart();

            MimeBodyPart mimeBodyPart = new MimeBodyPart();
            if (HTML) {
                mimeBodyPart.setContent(text, "text/html;charset="
                        + this.encode);
            } else {
                mimeBodyPart.setText(text, this.encode);
            }
            multipart.addBodyPart(mimeBodyPart);

            for (int i = 0; i < filename.length; i++) {
                try {
                    MimeBodyPart fileBodyPart = new MimeBodyPart();
                    DataSource datasource = new FileDataSource(filename[i]);
                    fileBodyPart.setDataHandler(new DataHandler(datasource));
                    //fileBodyPart.setFileName(new
                    // File(filename[i]).getName());
                    //fileBodyPart.setFileName("=?GBK?B?"+enc.encode((datasource.getName()).getBytes())+"?=");
                    fileBodyPart.setFileName("=?" + this.encode + "?B?"
                            + enc.encode((datasource.getName()).getBytes())
                            + "?=");
                    multipart.addBodyPart(fileBodyPart);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
            message.setContent(multipart);
        } else {
            if (HTML) {
                message.setContent(text, "text/html;charset=" + this.encode);
            } else {
                message.setText(text, this.encode);
            }
        }
        return message;
    }

    public static void main(String arg[]) {

        /*
         * new sendmail() 使用GBK的默认编码发送文本信息 new sendmail(编码,文本还是html);
         */
        SendMail mail = new SendMail("GBK", true);

        try {
            if (mail.connect("smtp.163.com", "shaoqiss@163.com", "937000")) {
                for (int i = 0; i < 1; i++) {

                    Map outerMailInfo = new HashMap();

                    outerMailInfo.put("strFrom", "shaoqiss@163.com");
                    outerMailInfo.put("strTo", "shaoqi8266@chinaren.com");
                    outerMailInfo.put("strTitle", "发送测试send test");
                    outerMailInfo.put("strCc", "");
                    outerMailInfo.put("strBcc", "");
                    outerMailInfo.put("strContent",
                            "测试一下我的内容是可以吗？contexnt test");

                    //                    String[] fileName = new String[3];
                    //
                    //                    fileName[0] = "C:/tmp/1.txt";
                    //                    fileName[1] = "C:/tmp/2.txt";
                    //                    fileName[2] = "C:/tmp/Add.jpg";

                    //                    outerMailInfo.put("strFileNameList",fileName);

                    System.out.println("###############");

                    mail.send(outerMailInfo);

                    System.out.println("@@@@@@@@@@@@@@@");

                    System.out.print(i + "\t");
                }
                mail.close();

            }
        } catch (Exception e) {
            System.out.println(e.toString());
        }

    }
}

原文转自：http://www.ltesting.net