package com.syj;   

import java.io.ByteArrayOutputStream;

import java.io.FileInputStream;

import java.io.IOException;

import java.util.Arrays;

import java.util.Date;

import java.util.Properties;   

import javax.activation.DataHandler;

import javax.activation.FileDataSource;

import javax.mail.Authenticator;

import javax.mail.Message;

import javax.mail.PasswordAuthentication;

import javax.mail.Session;

import javax.mail.Transport;

import javax.mail.internet.InternetAddress;

import javax.mail.internet.MimeMessage;   

import javax.mail.BodyPart;

import javax.mail.Multipart;

import javax.mail.internet.MimeBodyPart;

import javax.mail.internet.MimeMultipart;   

import com.sun.istack.internal.ByteArrayDataSource;   

/**

 * <P>

 * Title:用java发送邮件的例子

 * </P>

 *

 * <P>

 * Description:发送图片附件并在html中使用该图片

 * </P>

 *

 * <P>

 * Copyright: Copyright (c) 2007

 * </P>

 *

 * @main sunyujia@yahoo.cn

 * @date Jun 10, 2008 12:35:26 AM

 */

public class SendMail {

    private static String username = "xxxx";

    private static String password = "xxxx";

    private static String smtpServer = "smtp.163.com";

    private static String fromMailAddress = "xxxx@163.com";

    private static String toMailAddress = "sunyujia@yahoo.cn";   

    public static void main(String[] args) throws Exception {

        Properties props = new Properties();

        props.put("mail.smtp.auth", "true");

        props.put("mail.smtp.host", smtpServer);

        // 获得邮件会话对象

        Session session = Session.getDefaultInstance(props,

                new SmtpAuthenticator(username, password));

        /** *************************************************** */

        // 创建MIME邮件对象

        MimeMessage mimeMessage = new MimeMessage(session);

        mimeMessage.setFrom(new InternetAddress(fromMailAddress));// 发件人

        mimeMessage.setRecipient(Message.RecipientType.TO, new InternetAddress(

                toMailAddress));// 收件人

        mimeMessage.setSubject("主题");

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

        Multipart mp = new MimeMultipart("related");// related意味着可以发送html格式的邮件

        /** *************************************************** */

        BodyPart bodyPart = new MimeBodyPart();// 正文

        bodyPart.setDataHandler(new DataHandler("测<img src="cid:IMG1" />试",

                "text/html;charset=GBK"));// 网页格式

        /** *************************************************** */

        BodyPart attachBodyPart = new MimeBodyPart();// 普通附件

        FileDataSource fds = new FileDataSource("c:/boot.ini");

        attachBodyPart.setDataHandler(new DataHandler(fds));

        attachBodyPart.setFileName("=?GBK?B?"

                + new sun.misc.BASE64Encoder().encode(fds.getName().getBytes())

                + "?=");// 解决附件名中文乱码

        mp.addBodyPart(attachBodyPart);

        /** *************************************************** */

        MimeBodyPart imgBodyPart = new MimeBodyPart(); // 附件图标

        byte[] bytes = readFile("C:/button.gif");

        ByteArrayDataSource fileds = new ByteArrayDataSource(bytes,

                "application/octet-stream");

        imgBodyPart.setDataHandler(new DataHandler(fileds));

        imgBodyPart.setFileName("button.gif");

        imgBodyPart.setHeader("Content-ID", "<IMG1></IMG1>");// 在html中使用该图片方法src="cid:IMG1"

        mp.addBodyPart(imgBodyPart);

        /** *************************************************** */

        mp.addBodyPart(bodyPart);

        mimeMessage.setContent(mp);// 设置邮件内容对象

        Transport.send(mimeMessage);// 发送邮件   

    }   

    /**

     * 读取文件

     *

     * @param file

     *            文件路径

     * @return 返回二进制数组

     */

    public static byte[] readFile(String file) {

        FileInputStream fis = null;

        ByteArrayOutputStream bos = null;

        try {

            fis = new FileInputStream(file);

            bos = new ByteArrayOutputStream();

            int bytesRead;

            byte buffer[] = new byte[1024 * 1024];

            while ((bytesRead = fis.read(buffer)) != -1) {

                bos.write(buffer, 0, bytesRead);

                Arrays.fill(buffer, (byte) 0);

            }

        } catch (IOException e1) {

            e1.printStackTrace();

        } finally {

            try {

                if (bos != null)

                    bos.close();

            } catch (IOException e) {

                e.printStackTrace();

            }

        }

        return bos.toByteArray();

    }

}   

/**

 * Smtp认证

 */

class SmtpAuthenticator extends Authenticator {

    String username = null;

    String password = null;   

    // SMTP身份验证

    public SmtpAuthenticator(String username, String password) {

        this.username = username;

        this.password = password;

    }   

    public PasswordAuthentication getPasswordAuthentication() {

        return new PasswordAuthentication(this.username, this.password);

    }   

}